SOURCE MEDIA INC
S-1, 1996-11-27
TELEGRAPH & OTHER MESSAGE COMMUNICATIONS
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<PAGE>   1
 
   AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON NOVEMBER 27, 1996
 
                                                     REGISTRATION NO. 333-
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
 
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                             ---------------------
                                    FORM S-1
 
            REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
                             ---------------------
                               SOURCE MEDIA, INC.
             (Exact name of Registrant as specified in its charter)
 
<TABLE>
<S>                            <C>                            <C>
           DELAWARE                         4825                        13-3700438
(State or other jurisdiction of  (Primary Standard Industrial        (I.R.S. Employer
incorporation or organization)   Classification Code Number)        Identification No.)
</TABLE>
 
                       8140 WALNUT HILL LANE, SUITE 1000
                              DALLAS, TEXAS 75231
                                 (214) 890-9050
         (Address, including zip code, and telephone number, including
            area code, of Registrant's principal executive offices)
                             ---------------------
 
                               TIMOTHY P. PETERS
               CHAIRMAN OF THE BOARD AND CHIEF EXECUTIVE OFFICER
                               SOURCE MEDIA, INC.
                       8140 WALNUT HILL LANE, SUITE 1000
                              DALLAS, TEXAS 75231
                                 (214) 890-9050
           (Name, address, including zip code, and telephone number,
            including area code, of Registrant's agent for service)
                             ---------------------
 
                           Copy of Communication to:
                           MICHAEL L. BENGTSON, ESQ.
                            THOMPSON & KNIGHT, P.C.
                        1700 PACIFIC AVENUE, SUITE 3300
                              DALLAS, TEXAS 75201
                             ---------------------
     APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC: As soon as
practicable after the effective date of this Registration Statement.
 
     If any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, check the following box.  [X]
 
     If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering.  [ ]
 
     If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering.  [ ]
 
     If delivery of the Prospectus is expected to be made pursuant to Rule 434,
please check the following box.  [ ]
 
                        CALCULATION OF REGISTRATION FEE
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<TABLE>
<CAPTION>
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                                                   PROPOSED MAXIMUM       PROPOSED MAXIMUM       AMOUNT OF
TITLE OF EACH CLASS OF            AMOUNT TO BE      OFFERING PRICE       AGGREGATE OFFERING    REGISTRATION
SECURITIES TO BE REGISTERED       REGISTERED(1)      PER SHARE(2)             PRICE(2)              FEE
- -----------------------------------------------------------------------------------------------------------
 <S>                              <C>            <C>                    <C>                    <C>
Common Stock, $.001 par value per
  share..........................    1,428,955           $7.25               $10,359,923         $3,139.37
</TABLE>
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(1) Based upon the number of Class A Shares and Class B Shares ("Cableshare
    Common Shares") of Cableshare Inc. ("Cableshare") outstanding as of November
    25, 1996, minus the Cableshare Common Shares held by the Registrant or its
    affiliates, divided by 5, the minimum exchange ratio in the transaction with
    Cableshare.
(2) Calculated pursuant to Rule 457(c), based upon the average of the bid and
    asked prices of the Common Stock on November 22, 1996.
 
     THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE SECURITIES AND EXCHANGE COMMISSION, ACTING
PURSUANT TO SAID SECTION 8(A), MAY DETERMINE.
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<PAGE>   2
 
     INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT. A
     REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE
     SECURITIES AND EXCHANGE COMMISSION. THESE SECURITIES MAY NOT BE SOLD NOR
     MAY OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT
     BECOMES EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR
     THE SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE
     SECURITIES IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE
     UNLAWFUL PRIOR TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS
     OF ANY SUCH STATE.
 
                 SUBJECT TO COMPLETION, DATED NOVEMBER 27, 1996
 
                                            SHARES
 
                               SOURCE MEDIA, INC.
 
                                  COMMON STOCK
                               ($.001 PAR VALUE)
 
                             ---------------------
 
     Each share of common stock, par value $.001 per share ("Source Common
Shares"), of Source Media, Inc., a Delaware corporation ("Source"), offered
hereby is issuable upon exchange of an exchangeable share, no par value per
share (an "Exchangeable Share"), of Cableshare Inc., an Ontario corporation
("Cableshare"), issued by Cableshare in exchange for Class A Shares and Class B
Shares of Cableshare in connection with the Plan of Arrangement involving
Cableshare and its shareholders. Source Common Shares are being offered on a
continuous basis pursuant to Rule 415 under the Securities Act of 1933, as
amended (the "Securities Act"), during the period of time that the Registration
Statement to which this Prospectus relates remains effective. Source and
Cableshare will offer Source Common Shares in exchange for Exchangeable Shares
from time to time during the period of time described under "Plan of
Distribution." Upon such exchange, holders of Exchangeable Shares will be
entitled to receive for each Exchangeable Share one Source Common Share, plus an
additional amount of cash equivalent to declared but unpaid dividends on such
Exchangeable Share. All expenses of registration incurred in connection with
this offering are being paid by Source. Source and Cableshare, as applicable,
will receive the Exchangeable Shares exchanged for the Source Common Shares
offered hereby. Source Common Shares are quoted on the Nasdaq Stock Market's
National Market (the "Nasdaq National Market") under the symbol "SRCM." On
November 25, 1996, the last reported sale price of the Source Common Shares on
the Nasdaq National Market was $7.50 per share.
 
                             ---------------------
 
 FOR A DISCUSSION OF CERTAIN RISKS THAT SHOULD BE CONSIDERED IN CONNECTION WITH
AN INVESTMENT IN SOURCE COMMON SHARES, SEE "RISK FACTORS" BEGINNING ON PAGE 6 OF
                                THIS PROSPECTUS.
 
                             ---------------------
THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES
    AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR
       HAS THE SECURITIES AND EXCHANGE COMMISSION OR ANY STATE
          SECURITIES COMMISSION PASSED UPON THE ACCURACY OR
              ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION
                  TO THE CONTRARY IS A CRIMINAL OFFENSE.
 
               The date of this Prospectus is             , 1996.
<PAGE>   3
 
                DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS
 
     This Prospectus includes "forward-looking statements" within the meaning of
Section 27A of the Securities Act of 1933, as amended (the "Securities Act"),
and Section 21E of the Securities Exchange Act of 1934, as amended (the
"Exchange Act"). All statements other than statements of historical facts
included in this Prospectus, including without limitation, statements under
"Risk Factors," "Business of Source," "Business of Cableshare" and "Management's
Discussion and Analysis of Financial Condition and Results of Operations of
Source -- Liquidity and Capital Resources," regarding Source's financial
position, business strategy, plans and objectives of management of Source for
future operations and indebtedness covenant compliance, are forward-looking
statements. Although Source believes that the expectations reflected in such
forward-looking statements are reasonable, it can give no assurance that such
expectations will prove to have been correct. Important factors that could cause
actual results to differ materially from Source's expectations (called
"Cautionary Statements" herein) are disclosed under "Risk Factors" and elsewhere
in this Prospectus, including without limitation in conjunction with the
forward-looking statements included in this Prospectus. All subsequent written
and oral forward-looking statements attributable to Source or persons acting on
its behalf are expressly qualified in their entirety by the Cautionary
Statements.
 
                             ---------------------
 
                               TABLE OF CONTENTS
 
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                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
Prospectus Summary....................................................................    3
Risk Factors..........................................................................    6
Use of Proceeds.......................................................................   11
Dividend Policy of Source.............................................................   11
Price Range of Source Common Shares...................................................   11
Price Range of Cableshare Shares......................................................   11
Selected Consolidated Financial Data of Source........................................   12
Selected Unaudited Pro Forma Consolidated Financial Data of Source....................   13
Selected Consolidated Financial Data of Cableshare....................................   14
Management's Discussion and Analysis of Financial Condition and Results of Operations
  of
  Source..............................................................................   15
Management's Discussion and Analysis of Financial Condition and Results of Operations
  of Cableshare.......................................................................   22
Business of Source....................................................................   24
Business of Cableshare................................................................   34
Management of Source..................................................................   37
Certain Transactions..................................................................   42
Principal Stockholders of Source......................................................   43
Management of Cableshare..............................................................   45
Principal Shareholder of Cableshare...................................................   46
Description of Capital Stock of Source................................................   46
Description of Capital Stock of Cableshare............................................   49
Income Tax Considerations.............................................................   51
Plan of Distribution..................................................................   62
Validity of Source Common Shares......................................................   64
Legal Opinions........................................................................   64
Experts...............................................................................   65
Available Information.................................................................   65
Index to Financial Statements.........................................................  F-1
</TABLE>
<PAGE>   4
 
                               PROSPECTUS SUMMARY
 
     The following summary is qualified in its entirety by the more detailed
information and financial statements appearing elsewhere in this Prospectus.
Unless otherwise indicated, all information in this Prospectus gives effect to a
1-for-2 reverse stock split effected on October 10, 1995 (the "Reverse Split").
Except as otherwise specified, (a) all references to Source or the Company
include Source Media, Inc. and its wholly-owned subsidiary, IT Network, Inc.
("IT"), and (b) all references to Source's activities, results of operations or
financial condition prior to June 23, 1995 relate to IT. "Dollars" and "$" refer
to United States dollars, and "Cdn$" refers to Canadian dollars. Investors
should carefully consider the information set forth under the heading "Risk
Factors."
 
THE ARRANGEMENT
 
     On November 13, 1996, Source entered into an agreement with Cableshare (the
"Arrangement Agreement") to, in effect, acquire the outstanding voting stock of
Cableshare that it and its subsidiaries did not already own. Pursuant to the
Arrangement Agreement, Source acquired the balance of Cableshare's voting shares
(the "Cableshare Common Shares") pursuant to a procedure known as a statutory
arrangement (the "Arrangement"), which was subject to approval by the Ontario
Court of Justice (General Division) (the "Ontario Court") pursuant to Section
182 of the Business Corporations Act (Ontario) (the "OBCA"). In general, the
Arrangement involved a recapitalization of the Cableshare Common Shares pursuant
to which the outstanding Cableshare Common Shares were exchanged, at the option
of the holder thereof, either for shares of (i) a new class of Cableshare
non-voting exchangeable shares, no par value per share (the "Exchangeable
Shares") or (ii) common stock, $.001 par value per share, of Source ("Source
Common Shares"), and Source and its subsidiaries became the owners of all of the
outstanding voting stock of Cableshare. The holders of Exchangeable Shares have
no rights to any assets of Cableshare except, on a redemption or retraction of
the Exchangeable Shares or a liquidation of Cableshare or Source, to receive
Source Common Shares and an amount equal to declared but unpaid dividends on
such Exchangeable Shares.
 
PLAN OF DISTRIBUTION
 
     Source Common Shares may be issued to holders of Exchangeable Shares as
follows: (i) holders of Exchangeable Shares may at any time elect to retract
such shares and exchange such shares for an equivalent number of Source Common
Shares; (ii) at the times described below, Source may redeem such Exchangeable
Shares by exchanging therefor an equal number of Source Common Shares; and (iii)
upon liquidation of Source or Cableshare, holders of Exchangeable Shares may be
required to, or may elect to, exchange such Exchangeable Shares for Source
Common Shares.
 
     Holders of Exchangeable Shares are entitled at any time to retract any or
all such Exchangeable Shares owned by them and to receive an equivalent number
of Source Common Shares, plus an amount of cash equal to all declared but unpaid
dividends on such Exchangeable Shares. The retraction will become effective on
the date specified by the holder, which date must be not less than 10 business
days nor more than 15 days after the request was received by Cableshare. Source
has the overriding call right to purchase all of the Exchangeable Shares
submitted for a purchase price equal to an equivalent number of Source Common
Shares, plus an amount equal to all declared but unpaid dividends, if Source
notifies Cableshare within five business days after receiving notice of the
request for retraction. The holder may revoke the request at any time before the
close of business on the business day preceding the date on which the
Exchangeable Shares were to be retracted.
 
     On December   , 2001, unless a later date has been specified by the
Cableshare Board of Directors or an earlier date has been specified by the
Cableshare Board of Directors after there are fewer than 350,000 Exchangeable
Shares outstanding, Cableshare will redeem all of the then outstanding
Exchangeable Shares in exchange for an equal number of Source Common Shares,
plus an amount of cash equal to all declared but unpaid dividends on the
Exchangeable Shares. Source will have the overriding right to purchase all of
the then outstanding Exchangeable Shares for a purchase price equal to an equal
number of Source Common Shares plus an amount equal to all declared but unpaid
dividends on the Exchangeable Shares. Cableshare will provide at least 120 days'
notice prior to such redemption. See "Plan of Distribution."
 
                                        3
<PAGE>   5
 
THE COMPANIES
 
  SOURCE
 
     Source is a provider of information and services to consumers through the
television and telephone. In September 1996, in Colorado Springs, Colorado,
Source commercially introduced the Interactive Channel (SM), its on-line
television programming service which provides a range of on-demand information
and services to consumers utilizing cable television and telephone lines. Source
utilizes Cableshare's patents and technologies embodied in an interactive
television system to deliver the service to cable subscribers through the
Interactive Channel. Source has announced distribution agreements for the
Interactive Channel with three cable operators: Marcus Cable Company L.P.,
Cablevision Systems Corporation, and Century Communications Corporation. The
Interactive Channel offers over 60 interactive programs including on demand
local and national news, sports and weather, home shopping with companies such
as J.C. Penney, Hallmark Connections and Waldenbooks, interactive Yellow Pages,
television and movie guides, travel information and games.
 
     Since 1988, Source has been delivering audiotext information to consumers
through the touch-tone telephone. Through its On-Line Telephone Business, Source
provides consumers with information on demand, such as news, weather and sports,
together with topical information for health, legal and other matters of
consumer interest. Source's principal On-Line Telephone Business product, called
the Network Guide, consists of approximately 800 specific information topics
listed in a stand-alone insert generally bound in the front of Yellow Pages
directories distributed by certain regional bell operating companies or their
affiliates ("RBOCs") or other Yellow Pages publishers.
 
     Source's future performance will depend substantially on its ability to
manage change in its businesses and operations, to respond to competitive
developments, to upgrade its technologies and programming, to commercialize
products and services incorporating such upgraded technologies and programming
and to adapt its operational and financial control systems as necessary to
respond to continuing changes in its businesses. See "Business of Source."
 
  CABLESHARE
 
     Cableshare has developed a patented interactive television technology that
uses telephone and cable television to deliver interactive services to
consumers. This interactive television technology is a multi-user, multimedia
system designed to deliver pictures, text, graphics and audio on demand to a
user's television set through existing coaxial cable television and telephone
networks. This technology stores the video and audio presentations in a
compressed digital form on a computer hard drive.
 
     Cableshare has licence agreements with Source and GTE Corporation.
Cableshare has entered into an agreement with Source's subsidiary, IT, whereby
Cableshare is developing a new interactive television system for Source's
Interactive Channel. The new system is intended to utilize recent advances in
technology, software, and computer systems in conjunction with Cableshare's
patented process, and to utilize Cableshare's experience in engineering,
software development, and systems integration to deliver an interactive
television system that Cableshare believes is low cost, reliable, easy to
maintain, user friendly, and application developer friendly.
 
     Cableshare believes this new system will have advantages over other
interactive television and interactive information delivery systems. Cableshare
designed the system for quick response to users' requests. Implementation should
be less costly on a per household basis than under the former system. It should
not require upgrades to function on broadband digital systems. If digital
systems become available, Cableshare believes the system can be enhanced to
provide features such as computer animation and full motion video.
 
     More than $35 million has been invested in development of this technology.
Three patents have been issued to Cableshare in the United States and two
patents in Canada covering the delivery of video presentation over cable and
broadcast systems. Cableshare positions its interactive television technology as
an ideal platform for delivering home shopping and information services. See
"Business of Cableshare."
 
                                        4
<PAGE>   6
 
INCOME TAX CONSIDERATIONS
 
     See "Income Tax Considerations" for a discussion of certain United States
federal and Canadian federal income tax considerations relating to the ownership
of the Exchangeable Shares and the exchange pursuant to the offering made hereby
of the Exchangeable Shares for Source Common Shares.
 
                                        5
<PAGE>   7
 
                                  RISK FACTORS
 
     INVESTORS SHOULD CONSIDER CAREFULLY THE FOLLOWING RISK FACTORS, IN ADDITION
TO THE OTHER INFORMATION CONTAINED IN THIS PROSPECTUS, BEFORE EXCHANGING THEIR
EXCHANGEABLE SHARES FOR THE SOURCE COMMON SHARES OFFERED HEREBY.
 
     HISTORICAL AND PROJECTED LOSSES.  Source has reported an operating loss and
a net loss attributable to its common shareholders in each year since its
inception, including operating losses of $7.8 million, $11.3 million and $8.3
million and net losses attributable to common shareholders of $10.7 million,
$14.5 million and $10.6 million in the fiscal years ended December 31, 1993,
1994 and 1995, respectively. In addition, Source reported an operating loss of
$9.6 million and a net loss attributable to common shareholders of $9.2 million
for the nine months ended September 30, 1996. The operating losses for these
periods were experienced both in Source's Interactive Channel, which is in the
development stage, and its On-Line Telephone Business. As a result of these net
losses, Source had an accumulated deficit of $52.2 million at September 30,
1996. Source expects that these losses will increase in 1997 as a result of,
among other things, its continuing expenditures relating to its efforts to
commercially introduce, deploy and enhance the Interactive Channel. Source
expects to continue to incur operating losses through 1997 in excess of the
amount of the operating losses experienced in past years and may incur operating
losses at similar or greater levels thereafter.
 
     NEED FOR ADDITIONAL FINANCING.  To continue to implement its business
strategy, which includes the further expansion of the Interactive Channel beyond
several United States cable systems and the pursuit of other strategic and
programming initiatives, and to meet its anticipated cash needs for working
capital and other capital expenditures through 1997, Source believes that during
the first six months of 1997 it will require significant additional financing.
Other than additional funds which may be available to Source pursuant to its
Note Purchase Agreement with Northstar Advantage High Total Return Fund (the
"Senior Note Agreement"), if certain conditions are met, Source currently does
not have any arrangements with respect to, or sources of, additional financing,
and there can be no assurance that any additional financing will be available to
Source in the future on commercially acceptable terms, if at all. The inability
to obtain additional financing would have a material adverse effect on Source's
ability to further deploy and enhance the Interactive Channel on the two cable
systems where it has been commercially introduced or on an additional cable
system or continue Source's operations. To the extent that future financing
requirements are satisfied through the issuance of equity securities, Source's
shareholders may experience dilution. The incurrence of additional debt
financing could result in a substantial portion of Source's operating cash flow
being dedicated to the payment of principal and interest on such indebtedness,
could render Source more vulnerable to competitive pressures and economic
downturns and could impose restrictions on Source's operations.
 
     TECHNOLOGICAL CHANGES AND POSSIBLE OBSOLESCENCE.  The on-line information
and services industry is characterized by rapidly changing technology and
evolving industry standards. There can be no assurance that products or
technologies developed by others will not render obsolete or otherwise
significantly diminish the value of Source's technology used for the Interactive
Channel or the On-Line Telephone Business. In particular, the Interactive
Channel must compete with technologies that offer Internet access, some of which
are currently available over the television. Source expects that its success
will be dependent upon its ability to enhance its products and services and
introduce new products and services to a level sufficient to achieve consumer
acceptance on a timely basis, which may require Source to obtain rights to
additional technologies from other parties. If Source is unable to design,
develop and manufacture, or obtain and introduce such enhancements to its
products and services and competitive new products on a timely basis, its
business could be materially adversely affected.
 
     EVOLVING NATURE OF BUSINESS.  Source's future performance will depend
substantially on its ability to manage change in its businesses and operations,
to respond to competitive developments, to upgrade its technologies and
programming, to commercially introduce products and services incorporating such
upgraded technologies and programming and to adapt its operational and financial
control systems as necessary to respond to continuing changes in its businesses.
 
     ACQUISITION RISKS.  Source may consider strategic acquisitions in either of
its lines of business from time to time. Although there can be no assurance that
Source will consummate any such acquisitions, to the extent that it does so,
such acquisitions would require Source to expend funds, issue additional equity
securities or
 
                                        6
<PAGE>   8
 
incur additional debt. The incurrence of additional indebtedness by Source could
result in a substantial portion of Source's operating cash flow being dedicated
to the payment of principal and interest on such indebtedness, could render
Source more vulnerable to competitive pressures and economic downturns and could
impose restrictions on Source's operations. To the extent that future financing
requirements are satisfied through the issuance of equity securities, Source's
shareholders may experience dilution. In addition, any assessment of potential
acquisitions is necessarily inexact and its accuracy is inherently uncertain.
There can be no assurances that management of Source would recognize the risks
and uncertainties associated with such an acquisition.
 
RISKS RELATING TO THE INTERACTIVE CHANNEL
 
     Uncertainty of Subscriber Acceptance.  There can be no assurance that a
market for on-line television in general and the Interactive Channel in
particular will develop, that cable subscribers will use the television as a
source of on-line information and services or that consumers subscribing to the
Interactive Channel will maintain their subscriptions. In addition, the
Interactive Channel will be competing with other on-line information and
entertainment sources. This competition includes services offering access to the
Internet through the television. There can be no assurance that the Interactive
Channel will prove more desirable than such services or sufficiently desirable
to cable subscribers to induce them to pay a subscription fee for the
Interactive Channel. If the Interactive Channel does not achieve market
acceptance, Source will be unable to implement its business strategy and
Source's business will be materially adversely affected.
 
     Access to Channels on Cable Systems.  Source's ability to offer the
Interactive Channel on any cable television system depends on obtaining an
agreement from the cable system operator for access to a channel on terms
satisfactory to Source. There is intense competition among suppliers of
programming for access to channels. Source currently has agreements that it
believes will provide channel access on one or more additional cable systems.
One such agreement requires the successful completion of a 90-day technical
trial prior to deployment of the Interactive Channel. The technical trial has
not yet begun. There can be no assurance that Source will be able to obtain
agreements with any other cable system operator providing channel access on
terms favorable to Source, if at all, or that it will successfully complete the
90-day technical trial.
 
     Availability of Programming.  The success of the Interactive Channel is
highly dependent on the availability of high-quality programming applications
that will appeal to cable television subscribers and induce them to initially
subscribe to, and continue to subscribe to, the Interactive Channel. Source
depends on independent programming sources, such as local television and radio
stations, retailers and information service providers, to create, produce and
update the programming disseminated on the Interactive Channel and to provide
such programming at no cost to Source. There can be no assurance that Source
will succeed in attracting and retaining such independent programming sources.
If independent programming sources do not develop high quality, up-to-date
information, shopping, entertainment and other programming applications that are
capable of being delivered on the Interactive Channel and that appeal to
subscribers, or if such suppliers are unwilling to provide such applications to
Source on terms favorable to Source, Source's business would be materially
adversely affected.
 
     Availability of Equipment.  For Source to offer the Interactive Channel on
a given cable system, subscribers in that system must utilize cable converter
boxes appropriately modified with subscriber equipment provided by Source, and
the cable system operator's local facilities must be equipped with head-end
computer equipment to be provided by Cableshare at Source's expense. The
deployment of the Interactive Channel currently depends, and will continue to
depend, on Source's ability to obtain from manufacturers sufficient quantities
of the necessary subscriber equipment and on Cableshare's ability to obtain
necessary head-end equipment components from its manufacturing supplier.
Although Source has made arrangements with one manufacturer in South Korea to
purchase subscriber equipment and has had discussions with another potential
manufacturer of subscriber equipment located in Taiwan, there can be no
assurance that Source will be able to obtain a sufficient quantity of subscriber
equipment, or that Cableshare will be able to obtain the components necessary
for its head-end equipment, on a timely basis or on commercially reasonable
terms. In addition, a substantial disruption of the operations of the
manufacturers of subscriber equipment or key
 
                                        7
<PAGE>   9
 
components for the head-end equipment would have a material adverse effect on
Source's operations. Although Source generally has identified alternative
manufacturers in order to minimize the time required to re-establish production
of subscriber equipment under such circumstances, certain of the key components
used in Source's products and in Cableshare's head-end equipment are obtained
from a single source. In the event that Cableshare or Source could not obtain
needed equipment on a timely basis, Source's business could be materially
adversely affected. In addition, because Source's suppliers of subscriber
equipment are expected to be foreign manufacturers, Source will be subject to
risks related to international regulatory requirements, export restrictions,
tariffs and other trade barriers and fluctuations in currency exchange rates.
 
     Proprietary Information.  Source's future success will depend in part on
Cableshare's ability to protect and maintain the proprietary nature of its
technology. In 1995, GTE Corporation and GTE MainStreet (collectively, "GTE")
sued Cableshare seeking to invalidate Cableshare's United States patents that
are licensed to and utilized by Source in connection with the Interactive
Channel. Cableshare filed a counter-action against GTE claiming infringement by
GTE of Cableshare's patents in connection with GTE's "MainStreet" on-line
television channel. In early 1996, Cableshare and GTE settled the litigation.
The settlement included an undisclosed fee paid to Cableshare and the grant to
GTE of a license to use the Cableshare patents. Any resulting increase in
competition as a result of the licence could materially adversely affect the
business of Cableshare and Source.
 
     Source often enters into confidentiality or license agreements with certain
of its employees, consultants and other outside parties, and generally seeks to
control access to and distribution of its proprietary information. Despite these
precautions, it may be possible for third parties to copy or otherwise obtain
and use Source's products or technology without authorization, or to
independently develop similar products and technology. In addition, effective
copyright and trade secret protection may be unavailable or limited in certain
foreign countries. There can be no assurance that the steps taken by Source will
prevent misappropriation of its technology or that additional litigation will
not be necessary in the future to enforce Source's intellectual property rights,
to protect Source's trade secrets, to determine the validity and scope of the
proprietary rights of others, or to defend against claims of infringement or
invalidity. Such litigation could result in the invalidation of Source's
proprietary rights and, in any event, could result in substantial costs and
diversion of management time, either of which could have a material adverse
effect on Source's business.
 
RISKS RELATING TO THE ON-LINE TELEPHONE BUSINESS
 
     Reliance on Yellow Pages Distribution Channel.  Source's On-Line Telephone
Business currently is dependent on Source's ability to distribute its printed
menu of available programming topics in certain of the Yellow Pages directories
published by the RBOCs or other Yellow Pages directory publishers. Source has
agreements with three of the seven RBOCs and three additional Yellow Pages
directory publishers for distribution in their respective regions. Some of
Source's earlier agreements with these and other RBOCs have expired or been
terminated. There can be no assurance that Source will be able to obtain new
agreements with any other RBOC or Yellow Pages directory publisher or to renew
existing agreements with RBOCs or Yellow Pages directory publishers on terms as
favorable to Source as existing agreements. If the financial terms of any new
agreements were to become more costly to Source than the terms of its existing
agreements, the operating losses incurred by the On-Line Telephone Business
could increase.
 
     Source's agreements with two RBOCs, Ameritech and Southwestern Bell, were
terminated in 1996. These two agreements accounted for 34 percent of Source's
monetary revenues in 1995.
 
     Uncertainty of Alternative Revenue Sources.  Historically, a significant
portion of Source's monetary revenues has been generated from the sale of
advertising sponsorships in connection with its programming for the On-Line
Telephone Business. Source has experienced declines in monetary revenues in a
subsequent period following the initial year of operations of the On-Line
Telephone Business in approximately one-half of the designated marketing areas
("DMAs") in which Source operates due to a number of factors, including
operating disruptions experienced by Source in regions where it relies on RBOC
equipment, systems and personnel, and lower advertising sales resulting from the
re-deployment of sales personnel in connection with the opening of new markets.
In the event Source were to experience a sustained decline in advertising
 
                                        8
<PAGE>   10
 
revenues, the future success of Source's On-Line Telephone Business would depend
in part on adding sources of monetary revenues in addition to advertising
revenues, such as fees generated from consumer transactions, usage fees for
database marketing, processing fees and sales agency fees. There can be no
assurance that Source will be able to develop these additional monetary revenues
or, if developed, that such revenues will allow Source's On-Line Telephone
Business to be profitable. In addition, various government regulations may
affect Source's ability to develop future revenue sources, particularly with
respect to database marketing.
 
     COMPETITION.  In an industry characterized by extensive capital
requirements and rapid technological change, Source faces potential competition
for the acceptance of its on-line programming and services from a number of
companies, most of which have significantly greater financial, technical,
manufacturing and marketing resources than Source and may be in a better
position to compete in the industry. In addition, Source faces competition for
advertiser revenues from other media, including radio, television, newspapers,
and magazines.
 
     Source believes that for the foreseeable future public access to on-line
television will generally be through cable system operators. Accordingly, Source
must compete with other providers of television programming to establish
relationships with cable system operators to gain channel access.
 
     Many companies, including some of the largest companies in the industry,
are developing, or have announced their intention to develop, products or
services that would compete with the Interactive Channel. To the extent one or
more competitors is successful in developing a competing service, the business
of Source could be materially adversely affected. Source believes that, for the
foreseeable future, the public's access to on-line television will generally be
achieved through cable system operators. Therefore, Source must compete with
other potential on-line television service providers, as well as other sources
of programming, to establish relationships with cable system operators. In
addition, the on-line television industry and the Interactive Channel face
competition for consumer usage from personal computer on-line services. Many of
those seeking to develop an on-line television service are also seeking to
develop, or have shifted their development efforts to, personal computer on-line
services, in particular, those offered over the Internet. Thus, Source faces
competition in the interactive and on-line services market from companies in
both the on-line television and on-line personal computer services industries.
 
     Source is aware of other companies currently offering some of the
information services provided over Source's On-Line Telephone Business.
Consumers can call a variety of "900" services for information provided by,
among others, Dow Jones & Company, Inc., AT&T, GTE and certain major newspaper
publishers. Callers are generally charged for calls to these "900" services.
Furthermore, a number of companies, local newspapers or radio stations provide
free on-line telephone programming similar to that offered on Source's On-Line
Telephone Business. Other companies such as Brite Voice Interactive
Communications, Inc., certain of the RBOCs, certain independent directories, a
subsidiary of Century Telephone Enterprises, and others have indicated an intent
to do so. Brite Voice has taken over services previously provided by Source to
BellSouth and Ameritech. These competitors may use Yellow Pages directories,
newspapers, mailers or other print media to distribute guides listing their
programming services. In addition to these current providers of on-line
telephone services, potential competitors include any information service
provider, as well as directory publishers. The On-Line Telephone Business also
faces competition from personal computer on-line services.
 
     VOLATILITY OF MARKET PRICES FOR THE SOURCE COMMON SHARES.  The market price
of the Source Common Shares has been and may continue to be volatile and could
be subject to wide fluctuations in response to quarterly variations in operating
results, announcements of technological innovations or new products by Source or
its competitors, changes in financial estimates by securities analysts, or other
events or factors. In the event that Source's operating results are below the
expectations of public market analysts and investors in one or more future
quarters, it is likely that the price of the Source Common Shares will be
materially adversely affected. In addition, the stock market has experienced
significant price and volume fluctuations that have particularly affected the
market prices of equity securities of many communications, media and technology
companies and that often have been unrelated to the operating performance of
such companies. General market fluctuations may adversely affect the market
price of the Source Common Shares.
 
                                        9
<PAGE>   11
 
     RELIANCE ON KEY PERSONNEL.  Source's future performance will depend in
large part upon the services of certain executive officers and other key
personnel. Source has entered into an employment agreement with only one of such
key persons. The loss of the services of one or more of these individuals could
have a material adverse effect on Source. In addition, in order for Source to
implement its business strategy and successfully introduce the Interactive
Channel, it will be necessary for Source to attract and retain qualified sales
personnel and other qualified management, engineering, marketing, finance and
production personnel. There can be no assurance that Source will be able to
continue to attract and retain such personnel.
 
     GOVERNMENT REGULATION.  The telecommunications and cable television
industries are subject to extensive regulation by federal, state and local
governmental agencies. Existing regulations were substantially affected by the
passage of the Telecommunications Act of 1996 ("1996 Telecom Act") in February,
1996 which allowed cable television companies and telephone companies both to
enter and participate in new lines of business. This introduced the possibility
of new, non-traditional competition for both cable television and telephone
companies and resulted in greater potential competition for Source. The outcome
of pending federal and state administrative proceedings may also affect the
nature and extent of competition that will be encountered by Source. In
addition, future regulations may prevent Source from generating revenues from
sales of database information about consumers obtained by Source from its
television and telephone business. These competitive developments, as well as
other regulatory requirements relating to privacy issues, may have a material
adverse effect on Source's business.
 
     LEGAL PROCEEDINGS AND CLAIMS.  Source and Cableshare are currently involved
in legal proceedings brought by a former director and executive officer of
Cableshare, which, if determined adversely to Source or Cableshare, could have a
material adverse effect on the business of Source. In addition, Source has
received correspondence from a shareholder and former director of Source
relating to claims that may be asserted by such shareholder and certain other
persons in connection with the conversion of convertible notes formerly held by
such persons. There can be no assurance that the ultimate outcome of these
matters will be resolved in favor of Source or Cableshare. In addition, even if
the ultimate outcome is resolved in favor of Source or Cableshare, involvement
in any litigation or claims could entail considerable cost to Source and the
diversion of the attention of management, either of which could have a material
adverse effect on the business of Source, or both.
 
     CONTROL BY CURRENT MANAGEMENT.  The directors and executive officers of
Source and their affiliates beneficially own, or have the right to vote, in the
aggregate approximately       percent of the outstanding Source Common Shares.
As a result of such persons' ownership and/or control of the Source Common
Shares and their directorship and management positions, they have significant
influence over all matters requiring approval by the stockholders of Source,
including the election of directors.
 
     SHARES ELIGIBLE FOR FUTURE SALE.  Source has a total of           Source
Common Shares outstanding. All of the shares outstanding are freely tradeable
under the Securities Act without restriction or registration, to the extent held
by persons other than "affiliates" of Source, as defined under the Securities
Act. Source also has outstanding warrants, options and exchange rights entitling
the holders thereof to acquire an aggregate of           Source Common Shares.
Source is required to file and maintain the effectiveness of a registration
statement covering 2,326,500 Source Common Shares issuable upon exercise of
certain of such warrants. Any of such 2,326,500 shares, other than those
acquired by affiliates of Source, would be freely tradeable following the
effectiveness of such registration statement. In addition, various persons have
"piggyback" and demand registration rights to register shares of outstanding
Source Common Shares and Source Common Shares issuable upon the exercise of
certain warrants and exchange rights for public sale under the Securities Act.
The preparation and filing of any registration statements filed in connection
with the exercise of registration rights will be at the expense of Source. Sales
of substantial amounts of Source Common Shares in the public market pursuant to
such registration rights could adversely affect the prevailing market price of
the Source Common Shares.
 
     POTENTIAL ADVERSE IMPACT OF ANTI-TAKEOVER PROVISIONS.  Source's certificate
of incorporation and by-laws and the provisions of the Delaware General
Corporation Law may have the effect of delaying, deterring or preventing a
change in control or an acquisition of Source. Source's certificate of
incorporation authorizes the
 
                                       10
<PAGE>   12
 
issuance of "blank check" preferred stock, which, in the event of issuance,
could be utilized by the board of directors of Source as a method of
discouraging, delaying or preventing a change in control or an acquisition of
Source, even though such an attempt might be economically beneficial to the
holders of Source Common Shares. Such provisions may have an adverse impact from
time to time on the price of the Source Common Shares.
 
                                USE OF PROCEEDS
 
     Because the Source Common Shares will be issued upon exchange of
Exchangeable Shares, Source will receive no net cash proceeds upon such
issuance.
 
                           DIVIDEND POLICY OF SOURCE
 
     Source has never declared or paid a cash dividend on the Source Common
Shares. Source currently intends to retain any earnings for use in the operation
and expansion of its business and does not anticipate declaring or paying any
cash dividends in the foreseeable future. In deciding whether or not to declare
or pay dividends in the future, the board of directors of Source will consider
all relevant factors, including Source's earnings, working capital and capital
expenditure requirements, any restrictions contained in any financing or other
agreements Source may enter into in the future and general business conditions.
Source is currently prohibited from paying dividends by the terms of its Senior
Note Agreement.
 
                      PRICE RANGE OF SOURCE COMMON SHARES
 
     Beginning December 8, 1995, the Source Common Shares were included in the
Nasdaq National Market under the symbol "SRCM." Prior to December 8, 1995, the
Source Common Shares had been quoted on the Over-the-Counter Bulletin Board (the
"OTC") under the symbol "SRCM." The table below sets forth, for the periods
indicated subsequent to June 23, 1995, the high and low bid quotations for the
Source Common Shares (as adjusted to estimate the effect of the Reverse Split in
the case of quotations for periods prior to October 10, 1995).
 
<TABLE>
<CAPTION>
    1995                                                   HIGH       LOW
    ----------------------------------------------------  ------     ------
    <S>                                                   <C>        <C>
    Second Quarter (beginning June 23, 1995)............  $11.50     $10.50
    Third Quarter.......................................   12.00       8.50
    Fourth Quarter......................................   12.88       9.13
</TABLE>                                                
                                                        
<TABLE>                                                 
<CAPTION>                                               
    1996                                                   HIGH       LOW
    ----------------------------------------------------  ------     ------
    <S>                                                   <C>        <C>
    First Quarter.......................................  $ 9.63     $ 7.63
    Second Quarter......................................   11.25       8.38
    Third Quarter.......................................   10.88       7.38
    Fourth Quarter (through November 25, 1996)..........   11.50       7.00
</TABLE>                                                
 
     On November 25, 1996, the last reported bid price for the Source Common
Shares was $7.50 per share. As of November 22, 1996, there were 130 holders of
record of the Source Common Shares.
 
                        PRICE RANGE OF CABLESHARE SHARES
 
     As a result of the Arrangement, Source and its subsidiaries own all of the
Cableshare Common Shares, which are all of the outstanding voting shares of
Cableshare. The Exchangeable Shares are not traded on any stock exchange or
quoted on any interdealer quotation system, and no public market is expected to
develop. As a result, all historical information relating to the Cableshare
Common Shares has been omitted, and no information relating to the Exchangeable
Shares is available.
 
                                       11
<PAGE>   13
 
               SELECTED CONSOLIDATED FINANCIAL DATA OF SOURCE (1)
                     (in thousands, except per share data)
 
     The selected consolidated financial data set forth below for and as of the
end of each of the years in the five-year period ended December 31, 1995 are
derived from Consolidated Financial Statements of Source, which have been
audited by Ernst & Young LLP, independent auditors. The selected consolidated
financial data for the nine months ended September 30, 1995 and 1996 and as of
September 30, 1996 have been derived from unaudited financial statements which,
in the opinion of Source management, include all adjustments, consisting of
normal recurring accruals and other adjustments necessary for the fair
presentation of the financial position and of the results of operations for
these periods. The results of operations for the nine months ended September 30,
1996 may not be indicative of results that may be expected for the full year
ending December 31, 1996.
 
     The information contained in this section should be read in conjunction
with "Management's Discussion and Analysis of Financial Condition and Results of
Operations of Source" and the Consolidated Financial Statements of the Source
and Notes thereto included elsewhere in this Prospectus.
 
<TABLE>
<CAPTION>
                                                                                   NINE MONTHS ENDED
                                        YEARS ENDED DECEMBER 31,                     SEPTEMBER 30,
                         ------------------------------------------------------    ------------------
                          1991       1992        1993        1994        1995       1995       1996
                         -------    -------    --------    --------    --------    -------    -------
<S>                      <C>        <C>        <C>         <C>         <C>         <C>        <C>
                                                                                      (unaudited)
STATEMENT OF OPERATIONS
  DATA:
Monetary revenues......  $ 4,363    $ 5,594    $  6,431    $  9,194    $  9,342    $ 7,102    $ 6,406
Nonmonetary revenues
  (2)..................   10,008     14,049      18,752      21,749      15,944     12,670      8,041
                         -------    -------    --------    --------    --------    --------   --------
Total revenues.........   14,371     19,643      25,183      30,943      25,286     19,772     14,447
Gross profit...........      995      2,085       1,975       3,946       4,405      3,256      3,698
Operating loss.........   (3,108)    (3,707)     (7,805)    (11,331)     (8,328)    (5,992)    (9,571)
Net loss...............   (3,293)    (4,303)     (9,918)    (12,857)     (9,769)    (7,621)    (9,168)
Net loss attributable
  to common
  stockholders.........   (3,293)    (4,303)    (10,687)    (14,478)    (10,602)    (8,453)    (9,168)
Net loss per common
  share................    (0.99)     (1.20)      (2.66)      (3.22)      (1.65)     (1.48)     (0.92)
</TABLE>
 
<TABLE>
<CAPTION>
                                                   AS OF DECEMBER 31,                        AS OF
                                  ----------------------------------------------------   SEPTEMBER 30,
                                   1991       1992       1993        1994       1995         1996
                                  -------    -------    -------    --------    -------   -------------
<S>                               <C>        <C>        <C>        <C>         <C>       <C>
                                                                                          (unaudited)
BALANCE SHEET DATA:
Cash and cash equivalents........ $     3    $   297    $ 1,235    $    127    $17,479      $12,159
Working capital (deficit)........  (5,236)    (6,040)    (3,329)     (7,608)    12,223        7,720
Total assets.....................   1,523     10,992     13,248       8,219     24,195       19,155
Capital lease obligations and
  long-term debt (including
  current maturities)............   1,292      4,917        701         653        219        4,738
Redeemable convertible preferred
  stock (3)......................      --         --     10,065      16,236         --           --
Total stockholders' equity
  (capital deficiency)...........  (5,347)    (4,569)    (8,202)    (21,965)    13,037        4,637
</TABLE>
 
- ---------------
 
(1) On June 23, 1995, IT merged (the "Merger") with a wholly-owned subsidiary of
    HB Communications Acquisition Corp. ("HBAC"), a public company formed in
    Delaware for the purpose of acquiring a company engaged in the
    communications industry, with IT surviving as a wholly-owned subsidiary of
    HBAC. In connection with the Merger, HBAC changed its name to Source Media,
    Inc. Except as otherwise specified, all references to Source's activities,
    results of operations or financial condition prior to June 23, 1995 relate
    to IT. See Note 1 of Notes to Consolidated Financial Statements of Source.
 
(2) Nonmonetary revenues and nonmonetary cost of sales associated with barter
    transactions are included in the consolidated statements of operations at
    the estimated fair values of advertising time and information content
    received. See "Management's Discussion and Analysis of Financial Condition
    and Results of Operations" and Note 2 of Notes to Consolidated Financial
    Statements of Source.
 
(3) All of the outstanding redeemable convertible preferred stock was converted
    to Common Stock as part of the Merger. See Note 1 of Notes to Consolidated
    Financial Statements of Source.
 
                                       12
<PAGE>   14
 
       SELECTED UNAUDITED PRO FORMA CONSOLIDATED FINANCIAL DATA OF SOURCE
                     (in thousands, except per share data)
 
     The unaudited pro forma consolidated financial information and other data
below assume the Arrangement was consummated (i) at the beginning of the periods
presented for statement of operations data and (ii) on September 30, 1996 for
balance sheet data. The unaudited pro forma consolidated financial information
is presented for illustrative purposes only and is not necessarily indicative of
the operating results or financial position that would have occurred if the
Arrangement had been consummated at the assumed dates, nor is it necessarily
indicative of future results of operations. The unaudited pro forma consolidated
financial information should be read in conjunction with the Unaudited Pro Forma
Condensed Consolidated Financial Statements of Source and the related notes
thereto, and the Consolidated Financial Statements of Source and the related
notes thereto.
 
<TABLE>
<CAPTION>
                                                                                   NINE MONTHS ENDED
                                                                YEAR ENDED           SEPTEMBER 30,
                                                             DECEMBER 31, 1995           1996
                                                             -----------------     -----------------
                                                                           (UNAUDITED)
<S>                                                          <C>                   <C>
STATEMENT OF OPERATIONS DATA:
Monetary revenues.........................................       $   9,342             $   6,406
Nonmonetary revenues......................................          15,944                 8,041
                                                                 ---------              --------
Total revenues............................................          25,286                14,447
Gross profit..............................................           4,405                 3,698
Operating loss............................................         (11,138)              (11,678)
Net loss..................................................         (12,831)              (11,345)
Net loss attributable to common stockholders..............         (13,664)              (11,345)
Net loss per common share.................................           (1.75)                (1.00)
</TABLE>
 
<TABLE>
<CAPTION>
                                                                                    AS OF
                                                                              SEPTEMBER 30, 1996
                                                                              ------------------
                                                                                 (UNAUDITED)
<S>                                                                           <C>
BALANCE SHEET DATA:
Cash and cash equivalents.................................................         $ 11,659
Working capital...........................................................            7,220
Total assets..............................................................           32,703
Capital lease obligations and long-term debt (including current
  maturities).............................................................            4,738
Total stockholders' equity................................................           17,895
</TABLE>
 
                                       13
<PAGE>   15
 
               SELECTED CONSOLIDATED FINANCIAL DATA OF CABLESHARE
    (in thousands, except per share data; all amounts are Canadian dollars)
 
     The selected consolidated financial data set forth below for and as of the
end of each of the years in the five-year period ended March 31, 1996 are
derived from Consolidated Financial Statements of Cableshare, which have been
audited by KPMG, independent auditors. The selected consolidated financial data
for the six months ended September 30, 1995 and 1996 and as of September 30,
1996 have been derived from unaudited financial statements and which, in the
opinion of Cableshare's management, include all adjustments, consisting of
normal recurring accruals and other adjustments necessary for the fair
presentation of the financial position and of the results of operations for
these periods. The results of operations for the six months ended September 30,
1996 may not be indicative of results that may be expected for the full year
ending March 31, 1997.
 
     The information contained in this section should be read in conjunction
with "Management's Discussion and Analysis of Financial Condition and Results of
Operations of Cableshare" and the Consolidated Financial Statements of
Cableshare and Notes thereto included elsewhere in this Prospectus.
 
<TABLE>
<CAPTION>
                                                                                      SIX MONTHS ENDED
                                               YEARS ENDED MARCH 31,                   SEPTEMBER 30,
                                  ------------------------------------------------    ----------------
                                   1992       1993      1994      1995      1996       1995      1996
                                  -------    ------    ------    ------    -------    ------    ------
                                                                                        (unaudited)
<S>                               <C>        <C>       <C>       <C>       <C>        <C>       <C>
STATEMENT OF OPERATIONS DATA:
Revenue.......................... $   653    $1,690    $1,975    $2,694    $ 4,530    $1,639    $2,821
Expenses.........................   1,937     2,000     2,135     3,368      4,689     1,636     3,028
Income taxes.....................       0         0         0        49         25         0         0
Net income (loss)................  (1,284)     (310)     (161)     (723)      (184)        3      (207)
Earnings (loss) per share........   (0.09)    (0.02)    (0.01)    (0.05)     (0.01)     0.00     (0.01)
</TABLE>
 
<TABLE>
<CAPTION>
                                                  AS OF MARCH 31,                            AS OF
                                  ------------------------------------------------       SEPTEMBER 30,
                                   1992       1993      1994      1995      1996         -------------
                                  -------    ------    ------    ------    -------           1996
                                                                                         -------------
                                                                                          (unaudited)
<S>                               <C>        <C>       <C>       <C>       <C>           <C>
BALANCE SHEET DATA:
Cash and term deposits........... $ 1,037    $  245    $  217    $   36    $   306          $   399
Working capital (deficit)........     337      (164)        9      (877)    (1,174)          (1,269)
Total assets.....................   2,076     1,184     1,449     1,062      2,053            1,664
Capitalized lease obligations
  (including current portions)...       0         0         0        91        100               79
Shareholders' equity (deficit)...   1,116       399       399      (311)      (595)            (695)
</TABLE>
 
                                       14
<PAGE>   16
 
                    MANAGEMENT'S DISCUSSION AND ANALYSIS OF
            FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF SOURCE
 
GENERAL
 
     Source is a provider of information and services to consumers through the
television and telephone. In September 1996 in Colorado Springs, Colorado,
Source commercially introduced the Interactive Channel, its on-line television
programming service which provides a range of on-demand information and services
to subscribers utilizing cable television and telephone lines. Since 1988,
Source has been delivering audiotext information to consumers through the
touch-tone telephone. Through its On-Line Telephone Business, Source provides
consumers with information on demand, such as news, weather and sports, together
with topical information for health, legal and other matters of consumer
interest. The financial results discussed below reflect the operations of
Source's On-Line Telephone Business and general, development, advertising and
promotion expenses related to the Interactive Channel and Source's recently
discontinued on-line personal computer services and do not purport to give an
accurate indication of Source's future results of operations in light of the
anticipated market expansion of the Interactive Channel.
 
     Source has earned monetary revenues through advertising sponsorships in the
Network Guide, a product of its On-Line Telephone Business, which are recorded
as unearned income when billed and recognized on a straight-line basis as earned
over the terms of the respective client contracts (which are typically from 3 to
12 months). Source also has earned monetary revenues from sales of audiotext
services, principally its category-specific content in the back of Yellow Pages
directories ("Consumer Tips"), to certain of the RBOCs or other publishers of
Yellow Pages directories. In the future, Source believes a significant portion
of its monetary revenues will be generated from Interactive Channel fees
generated on a per subscriber basis.
 
     Historical revenues generated from the On-Line Telephone Business have been
predominantly nonmonetary. In each of its markets, Source has entered into
nonmonetary barter agreements with local television and radio stations. These
media sponsors provide Source with advertising time on their stations and update
local news, weather and sports programming on the On-Line Telephone Business in
exchange for promotional messages on the On-Line Telephone Business and print
advertisements in Source's Network Guide. Revenues and cost of sales associated
with these nonmonetary barter transactions are included in Source's consolidated
statements of operations at the estimated fair value of the on-air
advertisements and information content provided to Source by media sponsors. The
amount of nonmonetary revenues has declined in 1996 because of the cancellation
of agreements with Southwestern Bell Yellow Pages, Inc. ("Southwestern Bell")
and Ameritech Advertising Services ("Ameritech") and the decision by Source to
reduce the amount of space devoted to information provided by media sponsors in
the Network Guide.
 
     On June 23, 1995, as a result of the Merger, IT merged with a wholly-owned
subsidiary of HBAC. Pursuant to the Merger, the outstanding common stock and
preferred stock of IT was converted into common stock of HBAC. The results of
operations and financial position of Source for periods and dates prior to the
Merger are the historical results of operations and financial position of IT for
such periods and dates. For accounting and financial reporting purposes, Source
has reflected in its consolidated financial statements the assets, liabilities
and equity of IT at their historical book values. Additionally, where
applicable, all historical information has been restated to reflect a 1-for-2
reverse stock split that was effected on October 10, 1995.
 
     Since the completion of the Arrangement, the Company owns 100 percent of
the voting shares of Cableshare, which licenses to Source patented technology
utilized by Source in connection with the Interactive Channel and provides
research and development services to Source. Source's consolidated operating
results have historically included the operating results of Cableshare, as a
majority-owned subsidiary, with approximately 49 percent of the operating
results of Cableshare (which have typically been operating losses) being shown
as "Minority interests in losses of consolidated subsidiaries." Following the
Arrangement, none of the operating results of Cableshare will be shown as
"Minority interests in losses of consolidated subsidiaries." Also, in connection
with the Arrangement, the Company will record a significant amount of intangible
assets, consisting of patents and goodwill, which will result in additional
amortization expense of approximately $2.8 million per year for the next five
years.
 
                                       15
<PAGE>   17
 
NINE MONTH PERIOD ENDING SEPTEMBER 30, 1996 AND SEPTEMBER 30, 1995
 
     Monetary revenues declined 10 percent to $6.4 million for the nine months
ended September 30, 1996 from $7.1 million for the nine months ended September
30, 1995. The net decline of $697,000 included declines of $1.1 million
attributable to the Network Guide product and $676,000 attributable to Source's
Consumer Tips service. These declines were partially offset by increases of
$794,000 in interactive television revenues related to product development
trials of the Interactive Channel and license fees, and $250,000 in revenues
related to Source's other audiotext services and recently discontinued on-line
personal computer services. The decline in Network Guide monetary revenues
primarily reflects the termination of distribution in twelve DMAs, eight of
which are located within the Southwestern Bell region. Total Network Guide
revenues within the twelve terminated DMAs were $601,000 for the nine months
ended September 30, 1996 and $1.5 million for the nine months ended September
30, 1995.
 
     Additionally, there was a net decline in Network Guide monetary revenues
among Source's 48 other DMAs, primarily reflecting lower sales of advertising
contracts associated with distribution uncertainties relating to the termination
of the Ameritech agreement. As previously discussed, because of the termination
of Source's agreement with Ameritech, Source expects revenues to decline in
those Ameritech DMAs in 1996 and to end completely in the third quarter of 1997
due to the conclusion of revenue from Network Guide contracts in effect prior to
the termination of the Ameritech Agreement. The decline in Consumer Tips
revenues is also the result of the termination of Source's agreement with
Ameritech by Ameritech, and Consumer Tips revenues in the Ameritech region ended
completely in the second quarter of 1996. Total monetary revenues for both the
Network Guide and Consumer Tips products in the Ameritech region were $1.4
million for the nine months ended September 30, 1996 and $2.3 million for the
nine months ended September 30, 1995. Source expects to partially offset such
revenue declines in future periods with revenues generated through (i) its
recently-signed sales agency agreement with The Reuben H. Donnelly Corporation
("Donnelly") to sell the Network Guide in Yellow Pages published by Donnelly in
four top-100 DMAs in the mid-Atlantic region and (ii) its recently-completed
purchase of certain assets from Donnelly and a related audiotext service
contract with Donnelly under which Source will provide audiotext services and
sell the Network Guide in Yellow Pages published by Donnelly in seven top-100
DMAs located throughout the United States.
 
     The increase in interactive television revenues in the first nine months of
1996 compared with the same period in 1995 reflects a portion of the license
paid to Cableshare by GTE for the use of Cableshare's United States patents as
part of an agreement entered into in early 1996 to end litigation between
Cableshare and GTE as well as certain hardware and software sales to a third
party related to a trial of Interactive Channel technology.
 
     Nonmonetary revenues and nonmonetary cost of sales declined 37 percent to
$8.0 million for the nine months ended September 30, 1996 from $12.7 million for
the nine months ended September 30, 1995. Substantially all of this $4.7 million
decline in nonmonetary revenues and nonmonetary cost of sales occurred because
of the termination of distribution agreements in the seven DMAs previously
discussed and because, in other DMAs, Source reduced the amount of space devoted
to information provided by media sponsors in its Network Guide and, accordingly,
renewed its barter contracts with such media sponsors for lesser amounts of
promotional advertising. In light of the cancellation by Southwestern Bell and
Ameritech of their agreements with Source, Source expects its nonmonetary
revenues and nonmonetary cost of sales to decline substantially in future
periods. Source expects to partially offset such nonmonetary revenue declines in
future periods with nonmonetary revenues generated in association with its
recently-signed sales agency agreement with Donnelly.
 
     Monetary cost of sales declined 30 percent to $2.7 million, or 42 percent
of monetary revenues, for the nine months ended September 30, 1996 from $3.8
million, or 54 percent of monetary revenues, for the nine months ended September
30, 1995. In certain RBOC regions, Source has operated under comprehensive
Network Guide agreements whereby Source has agreed to share a portion of its
advertising revenues with the RBOC in return for pages in the RBOC's Yellow
Pages directories and use of the RBOC's audiotext equipment and telephone lines.
As DMAs become governed by such an agreement, Source's monetary cost of sales
reflects increasing revenue sharing expense and declining Yellow Pages purchase
expense and telephone line charges in such RBOC regions. Monetary costs of sales
for the first nine months of 1996 and 1995,
 
                                       16
<PAGE>   18
 
respectively, was primarily comprised of (i) revenue sharing expenses associated
with Network Guide agreements with Ameritech, DonTech (a joint venture of
Donnelly and Ameritech) and BellSouth of $1.4 million and $1.6 million,
respectively, a nine percent decline, reflecting lower monetary revenues in
those RBOC regions, (ii) Yellow Pages purchase expenses of $394,000 and
$1,005,000, respectively, a 61 percent decline, reflecting the discontinuation
of distribution in all eight DMAs within the Southwestern Bell region as well as
lower Yellow Pages prices and Source's decision to purchase fewer pages in the
Pacific Bell region, (iii) operations personnel salaries of $374,000 and
$446,000, respectively, a 16 percent decline, (iv) telephone line charges of
$195,000 and $286,000, respectively, a 32 percent decline, primarily reflecting
fewer DMAs in the Southwestern Bell region, and (v) satellite transmission
charges of $122,000 and $271,000, respectively, a 55 percent decline. As a
result of the cancellation of its agreement with Southwestern Bell, monetary
revenues attributable to DMAs within the Southwestern Bell region ended
completely in September 1996.
 
     Selling, general and administrative expenses, including amortization of
intangible assets increased 33 percent to $8.9 million for the nine months ended
September 30, 1996 from $6.6 million for the nine months ended September 30,
1995. This increase resulted primarily from increased subscriber acquisition
costs such as advertising agency creative fees, television production costs of
commercials and an infomercial, and direct mail and newspaper advertising
expenses associated with the commercial introduction of the Interactive Channel
as well as $655,000 of increased expenses associated with Source's recently
discontinued on-line personal computer services.
 
     Research and development expenses increased 69 percent to $4.4 million for
the nine months ended September 30, 1996 from $2.6 million for the nine months
ended September 30, 1995. This increase occurred due to (i) the addition of
personnel by Source and by Cableshare to support development activities as well
as to continue the development of cable converter boxes which will be deployed
in Interactive Channel subscriber households, (ii) the continued modification of
the Cableshare on-line television technology to operate on a UNIX-based platform
which increases the speed and capacity of the Interactive Channel headend
equipment, (iii) the continued development of a Windows-based media presentation
workstation that could be used by Source and others to create and edit
programming for the Interactive Channel, and (iv) other related development
activities associated with the commercial introduction of the Interactive
Channel.
 
     Other.  Net interest income was $301,000 for the nine months ended
September 30, 1996 compared with net interest expense of $190,000 for the nine
months ended September 30, 1995, reflecting interest earned on the proceeds from
a public offering of Source's common stock in December 1995. Charges related to
financing incentives for the nine months ended September 30, 1995 included $1.6
million related to the issuance of warrants in January and May 1995 in
connection with a bridge financing which provided Source with operating funds to
the point of the Merger.
 
YEARS ENDED DECEMBER 31, 1995 AND 1994
 
     Monetary revenues increased two percent to $9.3 million for the year ended
December 31, 1995 from $9.2 million for the year ended December 31, 1994. The
net increase of $148,000 included an increase of $1.2 million attributable to
the Network Guide product, partially offset by a decline of $847,000 in revenues
earned by Cableshare and a decline of $242,000 attributable to Source's Consumer
Tips service. The increase in Network Guide monetary revenues was generated by
expansion in 19 new DMAs and slightly increased monetary revenues among Source's
37 other DMAs. Revenue increases in certain existing DMAs occurred primarily
because of (i) the creation of a sales force focusing exclusively on selling
health and legal advertising, (ii) the allocation of additional resources to
target national advertisers and (iii) the centralization of customer service
operations, which has allowed the sales force more time to engage in selling
activities. Network Guide monetary revenues generated from advertisers in the
Southwestern Bell region accounted for approximately 13 and 12 percent of
Source's monetary revenues in 1995 and 1994, respectively. Until February 1,
1996, Source published the Network Guide in Yellow Pages directories in certain
DMAs within the Ameritech region and produced the related audiotext messages in
exchange for a share of the Network Guide revenues generated in those DMAs.
Source's agreement with Ameritech was terminated by Ameritech, and Source does
not expect its Network Guide to be included in any Ameritech Yellow Pages
directories published after February 1, 1996. Accordingly Source expects revenue
to decline in those Ameritech DMAs in 1996 and to end completely in the first
quarter of 1997. Network Guide monetary revenues generated from
 
                                       17
<PAGE>   19
 
advertisers in the Ameritech region accounted for approximately 20 and 22
percent of Source's monetary revenues in 1995 and 1994, respectively. Source has
instituted litigation against Ameritech in the District Court for Dallas County,
Texas, attempting to resolve the dispute between the companies relating to
Ameritech's termination of the agreement. The decline in Cableshare's revenues
in 1995 compared to 1994 reflects hardware sales and consulting services
delivered by Cableshare in 1994 to Bell Atlantic in connection with Bell
Atlantic's interactive Yellow Pages trial, which did not recur in 1995.
Decreased revenues related to Source's Consumer Tips service revenues in the
BellSouth region for the 1995 period, resulting from the non-renewal of Source's
contract with BellSouth for Consumer Tips services, were partially offset by
increasing Consumer Tips revenues in the Ameritech region. There were $13,000 in
revenues recorded for BellSouth Consumer Tips in the year ended December 31,
1995, compared with $555,000 in the year ended December 31, 1994. As a result of
the aforementioned termination of Source's agreement with Ameritech, Consumer
Tips revenues in the Ameritech region ended completely in April 1996.
 
     Nonmonetary revenues and nonmonetary cost of sales declined 27 percent to
$15.9 million for the year ended December 31, 1995 from $21.7 million for the
year ended December 31, 1994. Substantially all of this $5.8 million decline
occurred because, in certain DMAs, Source reduced the amount of space in its
Network Guide printed menu of available programming devoted to information
provided by media sponsors and, accordingly, renewed its barter contracts with
such media sponsors for lesser amounts of promotional advertising. In light of
Southwestern Bell's nonrenewal of its distribution agreements for Source's
Network Guide and Ameritech's termination of its agreement with Source, Source
expects that nonmonetary revenues and nonmonetary cost of sales will continue to
decline in 1997.
 
     Monetary cost of sales declined six percent to $4.9 million for the year
ended December 31, 1995 from $5.2 million for the year ended December 31, 1994.
In certain RBOC regions, Source has operated under comprehensive Network Guide
agreements whereby Source has agreed to share a portion of its advertising
revenues with the RBOC in return for pages in the RBOC's Yellow Pages
directories and use of the RBOC's audiotext equipment and telephone lines. As
DMAs within an RBOC region become governed by such a Network Guide agreement,
Source's monetary cost of sales reflect increasing revenue sharing expense and
declining Yellow Pages purchase expense and telephone line charges in such RBOC
region. Monetary cost of sales for the years ended December 31, 1995 and
December 31, 1994 was primarily comprised of (i) revenue sharing expenses
associated with Network Guide agreements with Ameritech, DonTech and BellSouth
of $2.0 million and $1.9 million, respectively, an eight percent increase,
resulting from higher monetary revenues in certain RBOC regions pursuant to
revenue-sharing operating agreements, (ii) Yellow Pages purchase expenses of
$1.2 million and $1.2 million, respectively, a two percent increase, reflecting
lower Yellow Pages purchase expense in those regions operating pursuant to
revenue sharing agreements, offset by increased Yellow Pages purchase expense
attributable to Source's expansion in the Pacific Bell region, (iii) operations
personnel salaries of $584,000 and $812,000, respectively, a 28 percent
decrease, reflecting certain cost-cutting measures implemented by Source in the
last six months of 1994, (iv) telephone line charges of $369,000 and $444,000,
respectively, a 17 percent decrease reflecting certain cost-cutting measures
implemented by Source in the last six months of 1994 and (v) satellite
broadcasting charges of $357,000 and $358,000, respectively, nearly unchanged.
 
     Selling, general and administrative expenses, including amortization of
intangible assets and write-down of intangible assets, declined 29 percent to
$9.0 million for the year ended December 31, 1995 from $12.6 million for the
year ended December 31, 1994. This decline resulted primarily from (i) the
nonrecurrence of a $1.9 million write-down of intangible assets recorded during
the year ended December 31, 1994 to reflect impairment of the value of such
assets in that period, (ii) lower amortization of intangible assets of $653,000
during 1995 resulting from such write-down, (iii) lower administrative expenses
of $539,000 resulting from certain cost-cutting measures implemented by Source
in the last six months of 1994, (iv) the non-recurrence of $456,000 of expense
incurred in 1994 related to the issuance of warrants to an outside advisory
committee that assists Source in certain matters ("Advisory Warrants") and (v)
the non-recurrence of $315,000 of expense incurred in 1994 related to a demand
made by Revenue Canada for repayment of certain refundable tax credits taken by
Cableshare in 1988. These declines were partially offset by increased
administrative expenses during 1995 attributable to Cableshare.
 
                                       18
<PAGE>   20
 
     Research and development expenses increased 39 percent to $3.7 million for
the year ended December 31, 1995 from $2.7 million for the year ended December
31, 1994. This increase was the result of the addition of personnel both within
Source and at Cableshare required to support business development activities as
well as to begin development of cable converter boxes, the modification of the
Cableshare on-line television technology to operate on a UNIX-based platform,
and the development of a Windows-based media presentation workstation.
 
     Other Income and Expenses. Net interest expenses declined 54 percent to
$137,000 for the year ended December 31, 1995 from $296,000 for the same period
in 1994 as Source fulfilled certain interest expense obligations effective in
June 1995. Source incurred $1.6 million of charges related to financing
incentives during 1995 as a result of the issuance of certain warrants in
January 1995 and in connection with interim financings in May 1995. Included in
other (income) expense for 1994 was a non-recurring expense of $1.4 million
related to a discontinued public offering.
 
YEARS ENDED DECEMBER 31, 1994 AND 1993
 
     Monetary revenues increased 43 percent to $9.2 million for the year ended
December 31, 1994 from $6.4 million for the year ended December 31, 1993. The
net increase of $2.8 million consisted of $1.9 million attributable to Source's
Network Guide product, $160,000 attributable to its Consumer Tips service and
$784,000 attributable to Cableshare. Monetary revenues from the Network Guide
increased 37 percent to $7.0 million for 1994 from $5.1 million for 1993.
Network Guide monetary revenues increased $1.9 million during 1994 primarily by
expansion into 21 new DMAs. Among Source's 31 other DMAs, Network Guide monetary
revenues experienced a net increase of $482,000. Increased Consumer Tips
revenues during 1994 in the Ameritech region, where this service was introduced
during the third quarter of 1993, were partially offset by declining Consumer
Tips revenues in the BellSouth region resulting from the non-renewal of Source's
contract with BellSouth for Consumer Tips. Monetary revenues attributable to
BellSouth Consumer Tips were $555,000 in 1994 and $945,000 in 1993. The increase
in revenues attributable to Cableshare resulted primarily from hardware and
consulting services delivered to Bell Atlantic by Cableshare in connection with
Bell Atlantic's interactive Yellow Pages television trial.
 
     Nonmonetary revenues and nonmonetary cost of sales increased 16 percent to
$21.7 million for the year ended December 31, 1994 from $18.8 million for the
year ended December 31, 1993. This $2.9 million increase principally resulted
from increased barter transaction activity associated with expansion into new
DMAs.
 
     Monetary cost of sales increased 18 percent to $5.2 million for the year
ended December 31, 1994 from $4.5 million for the year ended December 31, 1993.
This increase resulted primarily from (i) a full year of revenue sharing
expenses associated with Network Guide agreements with Ameritech, DonTech and
BellSouth, which were partially offset by the elimination of expenses associated
with Yellow Pages purchases and telephone line charges in those RBOC's regions,
and (ii) increase salary expense from the growth in the number of employees
during 1994 to support the introduction of Consumer Tips. Monetary cost of sales
for 1994 and 1993 was primarily comprised of (i) revenue sharing expenses
associated with the Network Guide agreements with Ameritech and BellSouth of
$1.9 million and $803,000, respectively, (ii) Yellow Pages purchase expenses of
$1.2 million and $1.7 million, respectively, (iii) operations personnel salaries
of $812,000 and $712,000, respectively, and (iv) telephone line charges of
$444,000 and $525,000.
 
     Selling, general and administrative expenses, including amortization of
intangible assets and write-down of intangible assets, increased 49 percent to
$12.6 million for the year ended December 31, 1994 from $8.4 million for the
year ended December 31, 1993. This increase resulted primarily from (i) a $1.9
million write-down of intangible assets recorded during 1994 to reflect
impairment of the value of such assets, (ii) increased commissions expense of
$470,000 during 1994 resulting from increased monetary revenues, (iii) a
$456,000 charge during 1994 as a result of the issuance of warrants in
connection with the establishment of an advisory committee of Source's, (iv)
higher salary expenses of $384,000 during 1994 due to the addition of
administrative personnel in 1993 and 1994, (v) a $315,000 charge in 1994 to
reflect the assessment to Cableshare by Revenue Canada reducing investment tax
credits taken by Cableshare in prior years, (vi) increased Cableshare selling,
general and administrative expenses of $309,000 during 1994
 
                                       19
<PAGE>   21
 
primarily due to personnel added in 1993 and 1994 and (vii) increased insurance
expense of $231,000 relating to both increased personnel and the inception of a
directors and officers insurance policy in 1994.
 
     Research and development expenses increased 102 percent to $2.7 million for
the year ended December 31, 1994 from $1.3 million for the year ended December
31, 1993. This increase was the result of a full year's activity of Source's
development efforts for the Interactive Channel during 1994 and the addition of
development personnel at Cableshare required to service Source's trial of the
Interactive Channel and Bell Atlantic's interactive Yellow Pages television
trial, as well as to begin modification of the Cableshare on-line television
technology to operate on a UNIX-based platform.
 
     Other. Net interest expense increased 30 percent to $296,000 for the year
ended December 31, 1994, from $227,000 for the year ended December 31, 1993.
Nonrecurring expenses included in other (income) expense were $1.5 million for
the year ended December 31, 1994. Source did not incur any non-recurring
expenses for the year ended December 31, 1993. The nonrecurring expense in 1994
was the result of the write-off of charges relating to a discontinued public
offering in 1994. Charges related to financing incentives of $2.0 million for
the year ended December 31, 1993 were the result of inducements provided to
certain security holders to convert their securities into common shares, or
exercise their warrants or options, on terms more favourable to Source than
those provided in the securities.
 
LIQUIDITY AND CAPITAL RESOURCES
 
     Since its inception, Source has experienced substantial operating losses
and net losses as a result of its efforts to develop, deploy and support its
On-Line Telephone Business and to develop and conduct trials of the Interactive
Channel. As of September 30, 1996, Source had an accumulated deficit of
approximately $52.2 million and had used cumulative net cash in operations of
$33.1 million. The difference at September 30, 1996 between the accumulated
deficit since inception and cumulative net cash used in operations since
inception was attributable to (i) $15.5 million associated with nonmonetary
charges related to financing incentives, write-down of intangible assets,
depreciation and amortization and other non-cash expenses and (ii) $3.6 million
reflecting unearned income, accounts payable and accrued liabilities in excess
of accounts receivable, prepaid expenses and inventory. Source expects to
continue to incur negative cash flow from operating activities at least through
1997.
 
     Source's primary source of liquidity is its cash and cash equivalents,
which totaled $12.2 million at September 30, 1996. Since its inception, Source
has financed its operations primarily through an aggregate $50.4 million from
various financing activities, including the incurrence of debt and issuance of
common and preferred stock. In June 1995, Source consummated the Merger whereby
$7.2 million of cash, net of redemptions and expenses, became available to
Source. In connection with the Merger, $4.1 million of debt, and accrued
interest thereon, was retired and all of Source's preferred stock was converted
into common stock. In December 1995, Source completed a public offering of
2,350,000 shares of Common Stock for net proceeds of $21,850,000, of which
Source used approximately $3.0 million to repurchase shares of Common Stock from
a stockholder.
 
     On April 3, 1996, Source issued a senior note (the "First Tranche Note") in
the principal amount of $5.0 million and a warrant pursuant to the Senior Note
Agreement entitling the holder thereof to purchase 500,000 Source Common Shares
at a purchase price of $10.21 per share. Additional notes (the "Second Tranche
Note") in the aggregate principal amount of up to $5.0 million may be issued on
or before April 3, 1997 provided certain conditions are met. On September 30,
1996, Source issued an additional senior note in the amount of $326,806 for the
payment of interest on the First Tranche Note. This note has terms identical to
the First Tranche Note. In connection with this transaction, if certain
conditions are met and Source elects to issue the Second Tranche Note, Source
will be obligated to issue a second warrant entitling the holder to purchase up
to an additional 500,000 Source Common Shares at a purchase price of $10.21 per
share. All notes issued in connection with this transaction are due on March 31,
2001 and bear interest at the rate of 13% per annum through March 31, 1998 and
12% thereafter. On March 31, 2000, Source must make a prepayment of the notes
equal to 33.33% of the then outstanding principal (together with interest
accrued to date on such principal amount). Through March 31, 1998, at the option
of Source, interest payments may be made through the issuance of additional
notes. The notes are secured by a lien on all of Source's assets, including its
shares of
 
                                       20
<PAGE>   22
 
Cableshare, and a licensing agreement with Cableshare. Except for the required
prepayment described above, the note agreement provides for a prepayment penalty
and customary covenants and events of default. The warrant contains standard
anti-dilution provisions. Source also granted the holder of the warrant demand
and "piggyback" registration rights covering the shares of Source's common stock
issuable upon exercise of the warrant.
 
     During the remaining three months of 1996, Source intends to invest at
least $600,000 in additional property and equipment, primarily related to the
introduction of the Interactive Channel. Additionally, in connection with the
Arrangement, Source anticipates paying approximately $500,000 in legal, printing
and other transaction costs.
 
     In February 1996, Source entered into an agreement with Cableshare which
grants to Source the exclusive right to market Cableshare's patents and software
in the development and operation of the Interactive Channel for a one-year
period, renewable annually upon mutual agreement of the parties. The license
also commits Cableshare to develop a new set-top box, a UNIX-based platform and
user-friendly applications and production system. Source is obligated to pay
$4.75 million for the development projects, all of which has been paid as of
October 15, 1996. Cableshare will also receive a payment for the equipment sold
as a result of Source's marketing of the Interactive Channel. The new license
replaces Source's obligations under the previous license to make payments and
achieve certain subscriber levels. On October 31, 1996, Source and Cableshare
extended the agreement through March 1997, and Source agreed to purchase a
minimum of $300,000 of development services per month from Cableshare commencing
November 1, 1996.
 
     In October 1996, Source acquired certain audiotext servicing assets from
Donnelley for an aggregate purchase price of $750,000, of which $600,000 was
paid in October 1996 and $150,000 is payable in June 1997. Source may consider
additional strategic acquisitions in either of its lines of business from time
to time. Although there can be no assurance that Source will consummate any such
acquisitions, to the extent that it does so, such acquisitions would require
Source to expend funds, issue additional equity securities or incur additional
debt. The incurrence of additional indebtedness by Source could result in a
substantial portion of Source's operating cash flow being dedicated to the
payment of principal and interest on such indebtedness, could render Source more
vulnerable to competitive pressures and economic downturns and could impose
restrictions on Source's operations.
 
     Source's future capital requirements will depend on many factors,
including, but not limited to, (i) the success and timing of the development,
introduction and deployment of the Interactive Channel, (ii) the operating
results of its On-Line Telephone Business, (iii) the levels of advertising
required to attain a competitive position in the marketplace for its products,
(iv) the extent of market acceptance of such products, (v) the funds required by
Cableshare and Source to fund their costs of litigation, and (vi) competitive
factors. Source believes its current resources, together with the additional
funds that may be available under the Senior Note Agreement, would be sufficient
to finance the commercial introduction of the Interactive Channel on several
United States cable systems, including the Colorado Springs system which was
launched in September 1996, and to meet Source's anticipated cash needs for
working capital through the end of 1997. However, Source does not believe that
these sources of funds will be sufficient to allow Source to further expand the
Interactive Channel beyond those several United States cable systems nor pursue
other strategic and programming initiatives which constitute part of its
business strategy, nor satisfy its other capital expenditure needs through the
end of 1997. Furthermore, there can be no assurances that additional funds will
be available under the Senior Note Agreement. Accordingly, Source anticipates
that it may attempt to sell additional equity securities or incur additional
debt in the first half of 1997.
 
NET OPERATING LOSS CARRYFORWARDS
 
     At December 31, 1995, IT had net operating loss carryforwards of
approximately $28.8 million for United States income tax purposes, which begin
to expire in 2003. The Internal Revenue Code of 1986 imposes limitations on the
use of net operating loss carryforwards if certain stock ownership changes
occur. As a result of the Merger, an ownership change occurred that will cause
Source's utilization of net operating losses to be limited to approximately $3.5
million in a given year.
 
                                       21
<PAGE>   23
 
          MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITIONS
 
                    AND RESULTS OF OPERATIONS OF CABLESHARE
 
SIX MONTHS ENDED SEPTEMBER 30, 1996 AND 1995
 
     Revenues increased 72 percent to Cdn$2.8 million for the six months ended
September 30, 1996 from Cdn$1.6 million for the six months ended September 30,
1995. The increase of Cdn$1.2 million was primarily attributable to increased
services and sales of system hardware in support of the Interactive Channel
launch in Colorado Springs, Colorado and in support of an interactive television
trial conducted by Southern Development Corporation in Atlanta, Georgia.
 
     Research and development expenses increased 99 percent to Cdn$1.6 million
for the six months ended September 30, 1996 from Cdn$817,000 for the six months
ended September 30, 1995. The increase of Cdn$805,000 primarily resulted from
increases in staffing and consulting services in support of a development
agreement with IT entered into effective April 1995.
 
     Costs of goods increased to Cdn$300,000 for the six months ended September
30, 1996 from Cdn$13,000 for the six months ended September 30, 1995. The
increase of Cdn$287,000 reflected increased hardware sales to IT in support of
the commercial launch of the Interactive Channel and in support of an
interactive television trial conducted by Southern Development Corporation.
 
     Operating and general and administration expenses increased 37 percent to
Cdn$1.1 million for the six months ended September 30, 1996 from 805,000 for the
six months ended September 30, 1995. The increase of Cdn$300,000 primarily
reflected increased staffing in customer support in anticipation of the
commercial launch of the Interactive Channel as well as increased legal expenses
incurred in defending various actions against Cableshare.
 
YEARS ENDED MARCH 31, 1996 AND 1995
 
     Revenues increased 68 percent to Cdn$4.5 million for the year ended March
31, 1996 from Cdn$2.7 million for the year ended March 31, 1995. The increase of
Cdn$1.8 million primarily reflected additional revenues earned from IT under the
development agreement entered into with IT effective April 1995.
 
     Research and development expenses increased 200 percent to Cdn$2.1 million
for the year ended March 31, 1996 from Cdn$688,000 for the year ended March 31,
1995. The increase of Cdn$1.4 million primarily resulted from increases in
staffing and development tools in support of the development agreement with IT.
 
     Costs of goods declined to Cdn$13,000 for the year ended March 31, 1996
from Cdn$136,000 for the year ended March 31, 1995. The decline of Cdn$123,000
reflected lower hardware sales related to customers involved in trials of
interactive television.
 
     Operating and administration expenses increased three percent to Cdn$2.6
million for the year ended March 31, 1996 from Cdn$2.5 million for the year
ended March 31, 1995. The increase of Cdn$71,000 reflected slightly higher
administrative expenses and legal expenses incurred in defending various actions
against Cableshare.
 
YEARS ENDED MARCH 31, 1995 AND 1994
 
     Revenues increased 36 percent to Cdn$2.7 million for the year ended March
31, 1995 from Cdn$2.0 million for the year ended March 31, 1994. The increase of
Cdn$719,000 reflected a Cdn$1.4 million payment from IT in connection with IT's
license agreement with Cableshare, partially offset by lower hardware sales and
consulting services during the same period.
 
     Research and development expenses declined to Cdn$688,000 for the year
ended March 31, 1995 from Cdn$1.1 million for the year ended March 31, 1994. The
decline of Cdn$409,000 primarily resulted from a reduction in expenses related
to the development of an interactive electronic multi-media application and an
interactive television trial conducted in 1994, which did not repeat in 1995.
 
     Costs of goods declined to Cdn$136,000 for the year ended March 31, 1995
from Cdn$538,000 for the year ended March 31, 1994. The decline of Cdn$402,000
reflected lower hardware and software sales related
 
                                       22
<PAGE>   24
 
to the development of an interactive electronic multi-media application and an
interactive television trial conducted in 1994, which did not repeat in 1995.
 
     Operating and administration expenses increased 409 percent to Cdn$2.5
million for the year ended March 31, 1995 from Cdn$500,000 for the year ended
March 31, 1994. The increase of Cdn$2.0 million primarily reflected the increase
in staffing and services in support of interactive television market trials
conducted by IT as well as legal expenses incurred in defending and settling
various actions against Cableshare.
 
LIQUIDITY AND CAPITAL RESOURCES
 
     Subsequent to the Arrangement, Cableshare expects to finance its operations
and capital expenditures with funds provided by Source. See "Management's
Discussion and Analysis of Financial Condition and Results of Operations of
Source -- Liquidity and Capital Resources."
 
                                       23
<PAGE>   25
 
                               BUSINESS OF SOURCE
GENERAL
 
     Source is a provider of information and services to consumers through the
television and telephone. In September 1996, in Colorado Springs, Colorado,
Source commercially introduced the Interactive Channel, its on-line television
programming service which provides a range of on-demand information and services
to consumers utilizing cable television and telephone lines. Source utilizes
Cableshare's interactive television system to deliver the Interactive Channel.
Source has announced distribution agreements for the Interactive Channel with
three cable operators: Marcus Cable Company, L.P., Cablevision Systems
Corporation, and Century Communications Corporation. The Interactive Channel
offers over 60 interactive programs including on demand local and national news,
sports and weather, home shopping with companies such as J.C. Penney, Hallmark
Connections and Waldenbooks, interactive Yellow Pages, television and movie
guides, travel information and games.
 
     Since 1988, Source has been delivering audiotext information to consumers
through the touch-tone telephone. Through its On-Line Telephone Business, Source
provides consumers with information on demand, such as news, weather and sports,
together with topical information for health, legal and other matters of
consumer interest. Source's principal On-Line Telephone Business product, called
the Network Guide, consists of approximately 800 specific information topics
listed in a stand-alone insert generally bound in the front of Yellow Pages
directories distributed by certain RBOCs or their affiliates or other Yellow
Pages publishers. Source's future performance will depend substantially on its
ability to manage change in its businesses and operations, to respond to
competitive developments, to upgrade its technologies and programming, to
commercialize products and services incorporating such upgraded technologies and
programming and to adapt its operational and financial control systems as
necessary to respond to continuing changes in its businesses.
 
     Source's operations are conducted through its subsidiary, IT. IT was
incorporated in Colorado on July 19, 1988 and reincorporated in Texas in 1991.
On June 23, 1995, as a result of the Merger, IT merged with a wholly-owned
subsidiary of HBAC. In connection with the Merger, HBAC changed its name to
Source Media, Inc. Pursuant to the Merger, the outstanding common shares and
preferred shares of IT were converted into common shares of Source.
 
     Source indirectly owns all of the outstanding voting shares of Cableshare,
which owns the patented technology utilized by Source for the Interactive
Channel and provides research and development services for Source.
 
     Source is a Delaware corporation whose address is 8140 Walnut Hill Lane,
Suite 1000, Dallas, Texas 75231, and whose telephone number is (214) 890-9050.
 
THE INTERACTIVE CHANNEL
 
     The Interactive Channel is designed to provide a range of on-line
information and services to consumers utilizing cable television and telephone
lines. Subscribers can use the Interactive Channel's menu-driven navigational
system to access desired interactive programming presented in the format of
photographic quality, still-frame pictures, text and graphics accompanied by
audio. The Interactive Channel allows a subscriber to move from one program of
interest to another, obtain the desired information and finalize transactions by
responding to audio and video prompts using a television remote control. On-line
television and Source's Interactive Channel have only recently been made
available to consumers in a single market. While Source has been successful in
acquiring subscribers for its service in the first two months of operations in
Colorado Springs, there can be no assurance that a market for on-line television
will develop or that cable subscribers will use the television as a source of
on-line information and services. In addition, the Interactive Channel will be
competing with other on-line information and entertainment sources. There can be
no assurance that the Interactive Channel will prove sufficiently desirable to
cable subscribers to induce them to initially subscribe to and to subsequently
continue to subscribe to the Interactive Channel.
 
                                       24
<PAGE>   26
 
PROGRAMMING
 
     Source has independently developed, and has secured from others,
programming for the Interactive Channel. Source is continuously developing and
obtaining additional programming. Source seeks to offer programming for the
Interactive Channel that is useful to consumers and easily presented in a series
of photographic quality, still-frame pictures, text and graphics accompanied by
audio. The success of the Interactive Channel is and will continue to be highly
dependent on the availability of high-quality programming applications that will
appeal to cable television subscribers. Source depends on independent
programming sources, such as local media, retailers and information service
providers, to create, produce and update the programming to be disseminated on
the Interactive Channel and to provide such programming at no cost to Source.
There can be no assurance that Source will succeed in attracting and retaining
such independent programming sources. If independent programming sources do not
develop high quality, up-to-date information, shopping, entertainment and other
programming applications that are capable of being delivered on the Interactive
Channel and that appeal to subscribers, or if such sources are unwilling to
provide such applications to Source on terms favorable to Source, Source's
business could be materially adversely affected.
 
DISTRIBUTION AND MARKETING OF THE INTERACTIVE CHANNEL
 
     In order to offer the Interactive Channel in a particular market, Source
must enter into a "carriage" agreement with the cable system operator to obtain
a dedicated cable channel. Source currently has carriage agreements with three
cable system operators. Following the programming trial of the Interactive
Channel in Denton, Texas, Source entered into a three-year carriage agreement
with Marcus Cable Company, L.P. (which acquired Sammons Communications and its
Denton cable system in late 1995) for access to a channel on the Denton cable
system. Deployment of the Interactive Channel on this cable system began in
October 1996. Source entered into a carriage agreement with Century
Communications Corporation ("Century") in March 1996 providing Century a
non-exclusive license to exhibit and distribute the Interactive Channel over
Century's cable television systems. The agreement has a five-year term. In
September 1996 Source launched the Interactive Channel over Century's Colorado
Springs, Colorado cable television system, which serves approximately 100,000
cable television subscribers. Source entered into a carriage agreement with
Cablevision Systems Corporation ("Cablevision") in November 1995 which provides
Cablevision the right to offer the Interactive Channel over its cable systems.
Following successful completion of a 90-day technical trial (which has not yet
begun), it is expected that the Interactive Channel would be deployed on
Cablevision's Yonkers, New York system or another Cablevision system having at
least 40,000 subscribers. The agreement has a five year term but is terminable
by Cablevision beginning one year after the initial commercial launch. All of
these agreements provide for subscription and other fees to be shared between
Source and the cable system operator. There is intense competition among
suppliers of programming for access to channels. There can be no assurance that
Source will be able to obtain agreements with any other cable system operators
providing channel access on terms favorable to Source, if at all, or that the
other two cable system operators currently carrying the Interactive Channel will
continue to do so.
 
     Once the Interactive Channel has been introduced on a cable system, Source
intends to campaign for subscribers in that system. Source has established
business relationships with local media in order to promote the Interactive
Channel in Colorado Springs and Denton. Source expects that the operators of
cable systems carrying the Interactive Channel will permit Source to use
available promotional airtime to advertise the Interactive Channel. Source has
utilized sales campaigns employing direct mail, telemarketing and inserts in
monthly billing statements to help build its subscriber base. Source also
sponsors presentations at industry trade shows and conferences to enhance
industry awareness. Source expects that it will use similar distribution and
marketing techniques as it enters other markets.
 
TECHNOLOGY
 
     The technology used by the Interactive Channel is designed to deliver
still-frame, photographic quality television pictures, text and graphics
accompanied by audio to a subscriber's television set almost instantaneously in
response to a subscriber's commands. Subscribers select menu options offered on
the television using a remote control unit with alphanumeric keys. A cable
converter box (appropriately modified by a device known as a side-car box),
which is connected to both the television cable and the telephone line, sends
control messages initiated by the subscriber over the telephone line to head-end
computer equipment located at the
 
                                       25
<PAGE>   27
 
cable system operator's facility. The head-end computer equipment then
interprets the messages, assembles the requested presentations and returns the
video image over the television cable line and the audio over the telephone
line. Upon receiving the video and audio signals, the converter box combines
them and plays the requested presentations on the television set. The
transmission and processing time takes less than one second from the time the
subscriber presses the remote control key. A limited number of cable systems
have been upgraded with two-way cable that would eliminate the need to utilize
separate telephone lines.
 
     All images to be broadcast on the Interactive Channel, together with their
associated audio segments, are digitized and stored in the head-end computer
equipment at the cable operator's facility. This computer equipment accesses the
compressed digitized picture and sound, decompresses the image and sound and
transmits them to the subscriber's television. The images are photographic
quality images created from photographs, slides or CD ROMs. The head-end
computer equipment is capable of transmitting still-frame images to the
subscriber via various distribution media, including coaxial cable, UHF,
wireless cable or satellite.
 
EQUIPMENT
 
     For Source to deploy the Interactive Channel on a cable system, subscribers
in that system must utilize cable converter boxes appropriately modified with
the attachment of a side-car box and remote controls with alphanumeric keys. In
addition, the cable system operator's local facilities must be equipped with
head-end computer equipment to be provided by Cableshare at Source's expense.
The further deployment of the Interactive Channel will depend on Source's
ability to continue to obtain from manufacturers sufficient quantities of the
necessary subscriber equipment and on Cableshare's ability to continue to obtain
necessary head-end equipment components from its manufacturing source. The
side-car boxes and remote controls operate in conjunction with existing cable
converter boxes to permit access to the Interactive Channel. Source intends to
provide the side-car boxes and remote controls to subscribers free of charge,
except under the Cablevision agreement. Under the Cablevision agreement, Source
is obligated to sell, at its cost, to Cablevision the equipment subsystems that
allow the Interactive Channel to function. Cablevision in turn will complete
manufacture of a side-car box with Cablevision-specific features. The head-end
equipment is assembled by Cableshare from components. The key components for the
head-end equipment are obtained from a domestic single-source supplier. Although
Source has received sufficient amounts of side-car boxes to introduce the
Interactive Channel in Colorado Springs and Denton, there can be no assurance
that Source will be able to continue to obtain a sufficient quantity of
subscriber equipment, or that Cableshare will be able to continue to obtain the
components necessary for its head-end equipment, on a timely basis or on
commercially reasonable terms.
 
     A substantial disruption of the operations of the manufacturers of
subscriber equipment or key components for the head-end equipment would have a
material adverse effect on Source's operations. Although Source generally has
identified alternative manufacturers in order to minimize the time required to
re-establish production of subscriber equipment under such circumstances,
certain of the key components used in Source's products and in Cableshare's
head-end equipment are obtained from a single source. In the event that
Cableshare or Source could not obtain needed equipment on a timely basis,
Source's business could be materially adversely affected. In addition, because
Source's suppliers of subscriber equipment are expected to be foreign
manufacturers, Source will be subject to risks related to international
regulatory requirements, export restrictions, tariffs and other trade barriers
and fluctuations in currency exchange rates.
 
     Source believes that new generations of analog and digital cable converter
boxes are being developed that will eliminate the need for side-car boxes and
the associated costs. Source believes that the design of the new converter boxes
will permit these converter boxes to receive the Interactive Channel's
programming with only minor modifications, which could include either (i) in the
case of analog boxes, inserting a modular component into a port in the converter
box or (ii) in the case of digital converter boxes, modifying the software of
the converter box.
 
     Recently, much attention has been focused on the future replacement of
coaxial cable systems with broadband networks utilizing fiber optic cable and
advanced communications technologies. Broadband networks would allow the two-way
transmission of significantly greater amounts of information than that which can
be transmitted over existing one-way cable systems. Broadband networks, when
coupled with
 
                                       26
<PAGE>   28
 
advanced computer storage equipment, would allow the consumer to interact with
and obtain on demand full motion video programming. Source believes that
substantial costs and current technological limitations have prevented broadband
networks from being commercially deployed. For example, current computer memory
capacity does not permit the storage of numerous feature length full motion
videos for on-demand delivery. To date, cable system operators and other
communications companies have only experimented with broadband networks.
However, the on-line information and services industry is characterized by
rapidly changing technology and evolving industry standards. There can be no
assurance that products or technologies developed by others will not render
obsolete or otherwise significantly diminish the value of Source's technology or
the Interactive Channel. In particular, Source expects that it will compete for
subscribers with on-line personal computer services that offer access to the
Internet as an alternative to the Interactive Channel. Some of these services
allow access to the Internet through the television and are currently available
to customers. Source expects that its success will be dependent upon its ability
to enhance its products and services and introduce new products and services on
a timely basis, which may require Source to obtain rights to additional
technologies from other parties. If Source is unable to design, develop and
manufacture, or obtain, and introduce such enhancements to its products and
services and competitive new products on a timely basis, its business could be
materially adversely affected.
 
PROPRIETARY RIGHTS AND INTELLECTUAL PROPERTY
 
     Patents.  The deployment and operation of the Interactive Channel utilizes
technology owned by Cableshare. The technology is the subject of three United
States patents issued to Cableshare and expiring in 2005, 2007 and 2008,
respectively, and two Canadian patents. The Cableshare patents issued in the
United States protect a system for delivering still-frame television images and
accompanying audio to television viewers in response to viewer requests. This
protection covers multiple transmission media, including UHF, microwave, cable
line and satellite. The patents cover technology within such a system that
enables different viewers to receive video images over different television
channels. In addition, the patents include protection for the implementation of
an interactive television system on a cable network.
 
     In February 1996, Source executed a Development and Licensing Agreement
(the "Licensing Agreement") in which Cableshare granted Source exclusive global
rights, subject to certain existing rights, to utilize Cableshare's technology
in the deployment and operation of the Interactive Channel. The Licensing
Agreement suspended the application of the previous nonexclusive agreement,
until the termination or expiration without renewal of the Licensing Agreement,
and waived Source's obligation under the previous nonexclusive agreement to
reach a certain subscriber level. On October 31, 1996, Source and Cableshare and
its affiliates extended the Licensing Agreement that would have expired on
December 31, 1996 until March 31, 1997 ("Extension"). The Extension requires
Source to pay Cableshare $300,000 per month for ongoing and additional
development projects identified by the parties.
 
     Pursuant to an agreement entered into in November 1988, Cableshare received
a grant from the National Research Council of Canada ("NRC") to develop an
on-line television system. Under the terms of this agreement, Cableshare was
required to obtain the approval of the NRC in order to license its technology to
Source. The approval was expressly conditioned upon such license being a
non-exclusive license and further provided the NRC the right to rescind its
approval on reasonable cause. The termination of the Cableshare license could
have a material adverse effect on Source's ability to develop, deploy and
operate the Interactive Channel. The NRC also has the right, if it determines
that Cableshare has failed to diligently pursue commercial opportunities for the
application of Cableshare's technology, to require Cableshare to grant it a
license for reasonable compensation, to the extent necessary to enable the NRC
to sublicense to others the use of Cableshare's technology.
 
     Source and Cableshare are currently working without the financial support
of the NRC to translate the software supporting the Cableshare technology for
utilization on a UNIX-based operating system. If successfully developed, Source
believes that this software could make the NRC-funded software obsolete and that
any licenses of this software would not be subject to the NRC rescission rights.
The NRC does not have any rights to the Cableshare patents which are used by
Source in connection with the NRC-funded Cableshare technology. No assurance can
be given as to when or if such software translation can be completed.
 
                                       27
<PAGE>   29
 
     Source relies on Cableshare for research and development of on-line
television services, the assembly of head-end equipment and the development of
certain set-top box integrated circuits. Cableshare is currently developing a
Windows-based media production workstation that could be used by Source and
others to create and edit programming for the Interactive Channel.
 
     Source's future success will depend in part on Cableshare's ability to
protect and maintain the proprietary nature of its technology. In 1995, GTE sued
Cableshare seeking to invalidate Cableshare's United States patents that are
licensed to and utilized by Source in connection with the Interactive Channel.
Cableshare filed a counter-action against GTE claiming infringement by GTE of
Cableshare's patents in connection with GTE's "MainStreet" on-line television
channel. In early 1996, Cableshare and GTE settled the litigation. The
settlement included an undisclosed fee paid to Cableshare and the grant to GTE
of a license to use the Cableshare technology. Any resulting increase in
competition as a result of the license could materially adversely affect the
business of Cableshare and Source.
 
ON-LINE TELEPHONE BUSINESS
 
     Source is a sales agent for and provider of audiotext information over the
telephone, which it makes available to consumers without charge through its
On-Line Telephone Business. Source provides consumers 24-hour access to its
audiotext programming, which consists of approximately 800 regularly-updated
information topics, through the use of a Company-developed touch-tone menuing
system. This system allows consumers to explore a variety of topics, review
selected topics in more detail, switch to new topics and, in certain
circumstances, immediately speak with an advertiser or other information
provider using a direct-connect feature. Consumers can access Source's audiotext
programming by dialing a local telephone number and entering a four-digit code
associated with each information topic. These codes are grouped by category and
displayed in various print media, such as Yellow Pages and advertisements.
During 1995, Source's audiotext programming was accessed through over 75 million
information requests from consumers.
 
DISTRIBUTION
 
     Source's principal On-Line Telephone Business product, the Network Guide,
consists of approximately 800 specific information topics listed in a
stand-alone insert generally bound in the front of Yellow Pages directories. The
following table provides information as of October 31, 1996 regarding the
distribution of a Network Guide produced by Source or a Yellow Pages directory
publisher in DMAs through Yellow Pages directories.
 
<TABLE>
<CAPTION>
                       PUBLISHER               NUMBER OF DMAS     NUMBER OF DIRECTORIES
            -------------------------------    --------------     ---------------------
            <S>                                <C>                <C>
            BellSouth......................          13                     20
            Donnelley......................           3                      5
            DonTech........................           2                     20
            Pacific Bell...................           8                     39
            Southern New England
              Telephone....................           1                      2
            US West........................          11                     16
                                                     --
                                                                           ---
            Total                                    38                    102
                                                     ==                    ===
</TABLE>
 
     Source has agreements with six publishers for distribution through Yellow
Pages directories in their respective regions of Source's printed menu of
information topics. Some of Source's earlier agreements with these and other
publishers have expired or been terminated in accordance with their terms. There
can be no assurance that Source will be able to obtain agreements with any
publishers or to renew existing agreements with publishers on terms as favorable
to Source as existing agreements. If the financial terms of any new agreements
with publishers allowing for distribution of Source's printed menus were to
become more costly to Source than the terms of its existing agreements, the
operating losses incurred by the On-Line Telephone Business could increase. In
addition, if Source were unable to obtain such an agreement with one of the
publishers, the resulting inability of Source to continue to market its On-Line
Telephone Business in the Yellow Pages in such publisher's region would have a
material adverse effect on Source's financial condition and results of
operations.
 
                                       28
<PAGE>   30
 
MARKETING STRATEGY
 
     In those directories in which it provides programming content, in order to
promote its On-Line Telephone Business, Source has developed relationships with
local television and radio stations. These media sponsors promote Source's
On-Line Telephone Business to their audiences and sponsor certain of the
information topics in the Network Guide. Source utilizes local radio and
television personalities to provide the local news, sports and weather
programming on the Network Guide. Consequently, consumers accessing local sports
information on the Network Guide hear the voice of a local sportscaster.
Currently, all arrangements with media sponsors are nonmonetary, with Source
exchanging advertising for production programming and promotion. As of October
31, 1996, Source had media relationships with over 70 radio stations and 17
television stations, including two ABC affiliates, six CBS affiliates, six NBC
affiliates and two Fox affiliates in the various markets in which it distributed
the Network Guide on such date. Media sponsors may also participate in "custom
pages," such as a music page offering information on current musical hits.
 
     Source obtains advertising sponsors for certain of the audiotext
information it provides through a sales and marketing team that combines local
and national sales efforts. Source's sales force is comprised of a Vice
President of Sales, regionally-based General Managers and direct sales
representatives who are employees of Source serving local markets. Source has
created a specialized sales forces for health and legal information and for
national advertisers. During 1995, over 70 percent of Source's advertising
revenues for the On-Line Telephone Business were generated by sponsorships of
health-related and legal-related topics.
 
AUDIOTEXT SERVICES
 
     As part of Source's On-Line Telephone Business, Source provides to other
parties audiotext services incorporating Source's programming. These parties or
Source in turn sell the services, directly or indirectly, to their advertisers.
To date, the principal buyers of these audiotext services have been certain of
the RBOCs and Yellow Pages directory publishers.
 
     Source also provides specialty targeted audiotext services directly to
businesses and advertisers. For example, Source has received a contract to
provide a service in which consumers call a number and, by entering certain
information through their touch-tone telephone, can obtain the product
information targeted for independent sales representatives.
 
TECHNOLOGY AND PROGRAMMING
 
     Source supports its On-Line Telephone Business through a network that
connects individual computer systems in each of the local markets via telephone
line or satellite from Source's central administration facility in Dallas,
Texas. Multiple phone lines are connected to each system to process local calls.
The local satellite dish receives transmissions of Source's programming and
automatically relays the information to the local computer system to process the
transmitted information. Source pays a monthly fee for satellite uplinking and
downlinking services and equipment.
 
     Information requiring frequent updates, such as national news, weather and
sports, is updated via satellite from Source's headquarters. Source obtains this
information from various sources such as United Press International. Source's
copywriters prepare written scripts from the information, and the written
scripts are then used to produce recordings with mixed background music and
voice. Source also edits and produces local advertisers' messages. The finished
audio recording is loaded into a central computer system connected to the
satellite and transmitted to the individual markets throughout the day, seven
days a week. The information is available to callers immediately after it has
been updated. A majority of the audiotext information delivered over Source's
On-Line Telephone Business is produced at Source's headquarters.
 
     Local media personalities are able to update the local programming by using
any touch-tone telephone. Local news, weather and sports information typically
is provided by a local network television station, and a variety of concert, top
ten music lists and event information is provided by local radio stations.
 
PUBLISHER AGREEMENTS
 
     Source's historical arrangements with the RBOCs and other Yellow Pages
directory publishers have ranged from strategic operating agreements covering
multiple directories pursuant to which the publisher and
 
                                       29
<PAGE>   31
 
Source share revenues generated by the Network Guide to directory-specific
contracts in which Source purchases pages from the publisher. The key agreements
between Source and the publishers relating to the On-Line Telephone Business are
summarized below.
 
     BellSouth.  Originally, Source distributed the Network Guide in Yellow
Pages directories in the BellSouth region pursuant to an agreement that gave the
company the right to publish 13 to 15 pages in the front of certain BellSouth
Yellow Pages directories in exchange for sharing revenues, net of sales
commissions, generated by sales of advertising sponsorships for the Network
Guide. In August 1996, Source and BellSouth executed a new agreement with a
5-year term under which Source is the sales agent for all BellSouth audiotext
services and provides certain content information and customer services. Source
no longer provides operational assistance related to production and transmission
of information. Source earns a commission of 38.5 percent on advertising sales
in 19 directories, increasing to 50 percent if certain goal levels are reached.
Source earns 50 percent on advertising sales in 5 other directories. In
addition, Source earns a set fee per advertiser per year for certain customer
services performed. During 1995, Network Guide monetary revenues generated from
advertisers in the BellSouth region accounted for approximately 24 percent of
Source's monetary revenues.
 
     Pacific Bell.  In the Pacific Bell region, Source's arrangements vary
depending on the size of the DMA. In exchange for providing audiotext messages
and soliciting advertisers to sponsor the audiotext messages in markets served
by Source, Source (i) has agreed to buy 8 to 12 pages in the front of Pacific
Bell Yellow Pages directories in the largest DMAs, (ii) receives free pages in
smaller DMAs and (iii) receives free pages and a fee for providing the Network
Guide in the smallest DMAs. Source currently distributes its Network Guide in
the Pacific Bell region pursuant to a December 1992 master agreement that
expires on September 1, 1998 unless terminated by Pacific Bell before such date
on 30 days' written notice. The agreement with Pacific Bell allows Pacific Bell
to obtain audiotext services and distribute audiotext products from other
providers but requires Source to obtain Pacific Bell's written consent before
Source can distribute the Network Guide in other California Yellow Pages
directories. Effective January 1996, Pacific Bell and Source amended the master
agreement to reduce by almost half the page costs Source is required to pay and
to exclude two small directories.
 
     Pacific Bell and Source entered into an agreement in August 1994 pursuant
to which Source provides certain audiotext services to Pacific Bell in exchange
for a reduced price for distribution of the Network Guide under the December
1992 Pacific Bell agreement. As part of the amendment to the master agreement,
Pacific Bell and Source extended through 1998 the arrangement under which Source
provides certain audiotext services for ten directories. Network Guide monetary
revenues generated from advertisers in the Pacific Bell region accounted for
approximately 16 percent of Source's monetary revenues during 1995.
 
     USWest.  USWest has a license that expires in August 1998 to use Source's
audiotext messages in DMAs in which Source acts as a sales agent for USWest. In
connection therewith, in July 1995, USWest and Source entered into a sales
agency agreement pursuant to which Source acts as a non-exclusive sales agent
for soliciting advertisers for the Network Guide in exchange for consideration
from USWest consisting of a fixed quarterly payment of $25,000 and a sales
commission of 32 or 35 percent of each advertising contract sold by Source,
depending on whether the sale was made in a DMA where total sales for the year
are equal to or greater than the goal set for the DMA. The term of the USWest
agreement runs through the end of USWest's 1996/97 Yellow Pages publication
cycle. Monetary revenues generated by Source in the USWest region accounted for
5 percent of Source's monetary revenues during 1995.
 
CANCELED AGREEMENTS
 
     Ameritech.  Source's agreement with Ameritech Publishing, Inc.
("Ameritech"), which permitted the Network Guide to be included in the front of
Ameritech Yellow Pages, was terminated by Ameritech effective as of February 1,
1996. On February 5, 1996, Source initiated litigation against Ameritech in
Texas state court, which is ongoing, related to the termination. Network Guide
monetary revenues generated from advertisers in the Ameritech region accounted
for approximately 21 percent of Source's monetary revenues during 1995.
 
                                       30
<PAGE>   32
 
     DonTech.  Source previously published the Network Guide in directories
within the DonTech region. DonTech is a joint venture for publication of
directories between Ameritech and The Reuben H. Donnelley Corporation. The
original agreement for Source to provide Network Guide services expired and was
not renewed.
 
     Southwestern Bell.  In the Southwestern Bell region, Source purchased pages
from Southwestern Bell on which to print the Network Guide in exchange for a
fee. Source's agreement with Southwestern Bell expired and Source has no further
arrangement with Southwestern Bell. In 1995, monetary revenues generated from
advertisers in the Southwestern Bell region accounted for approximately 13
percent of Source's monetary revenues.
 
ACQUISITIONS
 
     In October 1996, Source acquired certain audiotext servicing assets from
Donnelly for an aggregate purchase price of $750,000. In connection with this
acquisition, Source executed a services agreement with a three year minimum
term. Under the terms of the agreement, Donnelly is obligated to pay Source a
minimum of $3.2 million over the term of the agreement and Source has agreed to
assume Donnelly's operating responsibilities for its audiotext business.
 
COMPETITION
 
     In an industry characterized by extensive capital requirements and rapid
technological change, Source faces potential competition for the acceptance of
its on-line programming and services from a number of companies, most of which
have significantly greater financial, technical, manufacturing and marketing
resources than Source and may be in a better position to compete in the
industry. In addition, Source faces competition for advertiser revenues from
other media, including radio, television, newspapers, and magazines.
 
     The Interactive Channel.  Source believes that for the foreseeable future
public access to on-line television will generally be through cable system
operators. Accordingly, Source must compete with other providers of television
programming to establish relationships with cable system operators to gain
channel access.
 
     Source believes that GTE's "MainStreet" system is the only other on-line
television navigational system currently being tested in the marketplace with
programming that is comparable to the Interactive Channel and that is designed
to deliver programming over coaxial cable systems. GTE currently makes the
service available in Newton, Massachusetts, Clearwater, Florida and Ventura,
California. In early 1996, GTE and Cableshare agreed to a settlement to resolve
the litigation with GTE. The settlement involved the granting of a license, for
a fee, of the Cableshare patents in connection with the dismissal of the
lawsuits. Any resulting increase in competition as a result of the license could
materially adversely affect the business of Cableshare and Source. See "Business
of Source -- The Interactive Channel -- Proprietary Rights and Intellectual
Property."
 
     Source is aware of one other commercially available service developed by
ACTV, Inc. and delivered over several cable channels that offers view selection
and instant replay of television programming. Other cable interactive services
developed by Ameritech (tested using Cableshare technology), AT&T and Viacom,
Bell Atlantic (tested using Cableshare technology), Sega, Telecable, Time Warner
and USWest are not commercially available to the knowledge of Source. Source is
also aware of efforts by other companies or consortiums to develop and deliver
on-line full motion video programming. Time Warner is presently conducting a
4,000 home trial of its Full Service Network delivered over fiber optic cable in
Orlando, Florida.
 
     NYNEX, Bell Atlantic and Pacific Telesis have formed a joint venture to
offer on-line full motion video programming to homes via telephone lines and to
offer interactive services over the World Wide Web. Source is also aware of
other companies or products, such as TVOL, StarSight Telecast, Inc., NTN
Communications, Inc., WebTV and World Gate that provide or are testing on-line
services that would function independently of cable system operations. At least
two services, TVOL and WebTV, offer access to the Internet through the
television and are currently available to consumers.
 
     To the extent one or more competitors is successful in developing an online
television service, the business of Source could be materially adversely
affected. Source believes that, for the foreseeable future, the public's access
to on-line television will generally be achieved through cable system operators.
Therefore,
 
                                       31
<PAGE>   33
 
Source must compete with other potential on-line television service providers,
as well as other sources of programming, to establish relationships with cable
system operators. In addition, the on-line television industry and the
Interactive Channel face competition for consumer usage from personal computer
on-line services. Many of those seeking to develop an on-line television service
are also seeking to develop, or have shifted their development efforts to,
personal computer on-line services, in particular, those offered over the
Internet. Thus, Source faces competition in the interactive and on-line services
market from companies in both the on-line television and on-line personal
computer services industries.
 
     On-Line Telephone Business.  Source is aware of other companies currently
offering some of the information services provided over Source's On-Line
Telephone Business. Consumers can call a variety of "900" services for
information provided by, among others, Dow Jones & Company, Inc., AT&T, GTE and
certain major newspaper publishers. Callers are generally charged for calls to
these "900" services. Furthermore, a number of companies, local newspapers or
radio stations provide free on-line telephone programming similar to that
offered on Source's On-Line Telephone Business. Other companies such as Brite
Voice Interactive Communications, Inc., certain of the RBOCs, certain
independent directories, a subsidiary of Century Telephone Enterprises, and
others have indicated an intent to do so. Brite Voice has taken over services
previously provided by Source to BellSouth and Ameritech. These competitors may
use Yellow Pages directories, newspapers, mailers or other print media to
distribute guides listing their programming services. In addition to these
current providers of on-line telephone services, potential competitors include
any information service provider, as well as directory publishers. The On-Line
Telephone Business also faces competition from personal computer on-line
services.
 
EMPLOYEES
 
     As of November 15, 1996, Source had a total of 121 full- and part-time
employees. None of Source's employees is subject to a collective bargaining
agreement. Source has experienced no work stoppages and believes that it has
good relations with its employees.
 
REGULATORY MATTERS
 
     The telecommunications and cable television industries are subject to
extensive regulation by federal, state and local governmental agencies. Existing
regulations were substantially affected by the recent passage of
Telecommunications Act of 1996 (the "1996 Telecom Act") in February 1996. This
legislation will be implemented in administrative proceedings conducted by the
Federal Communications Commission ("FCC") and state regulatory agencies. The FCC
is expected to promulgate new rules consistent with the general requirements of
the 1996 Telecom Act.
 
     Most current regulatory and legislative activity addresses how telephone
companies and cable television companies may enter new lines of business, the
manner in which they can participate in new lines of business and the rates they
can charge consumers. Local exchange carriers, including the RBOC's, will be
facing more serious competition and will be able to enter new markets. Cable
television companies are now also permitted to provide telephone service. The
outcome of pending federal and state administrative proceedings may also affect
the nature and extent of competition that will be encountered by Source.
 
     The on-line information and services industry is evolving and will be
affected in the future by laws, regulations and policies adopted at the federal,
state and local levels of government. There are many laws, regulations and
policies, both existing and proposed, at all levels of government that may
impact, in varying degrees, the manner in which Source deploys the Interactive
Channel and its On-Line Telephone Business. Neither the outcome of these
proposals, nor their impact upon the on-line information and services industry
in general or on Source in particular, can be predicted at this time.
 
DESCRIPTION OF PROPERTY
 
     Source leases approximately 19,000 square feet of office space at 8140
Walnut Hill Lane, Suite 1000, Dallas, Texas, under a lease expiring in May 1997.
Source currently conducts all of its business activities at this location.
Source intends to renew this lease. Source has entered into an agreement to
lease approximately 11,000 square feet of office space at 5400 LBJ Freeway,
Dallas, Texas commencing on or about January 1, 1997.
 
                                       32
<PAGE>   34
 
     Source believes its present facilities and those arranged for are adequate
for its currently foreseeable needs.
 
LEGAL PROCEEDINGS
 
     Lerch.  On December 15, 1993, Marvin Lerch, the former Chief Executive
Officer and a shareholder of Cableshare, and certain of his relatives who are
also Cableshare Shareholders, commenced a legal proceeding in Ontario, Canada in
the Ontario Court (General Division) against Source and certain executive
officers of Source and a director of Cableshare on the grounds that the
defendants took actions intended to depress the value of Cableshare to allow
Source to acquire the remainder of Cableshare at a favorable price. The
plaintiffs seek, among other things, orders that certain actions by Cableshare's
board are invalid; a declaration that Cableshare's board is incapable of
managing its affairs due to conflicts of interest; an injunction against Source
from voting its Cableshare shares for three years; purchase by the defendants of
the plaintiffs' Cableshare shares for Cdn$20 per share or exchange of the
plaintiffs' Cableshare shares for Source Common Shares of equal value; and
damages in the amount of Cdn$8 million to compensate the plaintiffs for the
reduced value of their Cableshare shares and damages in the amount of Cdn$6
million to compensate Mr. Lerch for the loss of certain Cableshare stock
options. Cableshare disputes all of the claims and no trial date has as yet been
set. On October 21, 1996, the plaintiffs advised that they intended to move to
amend their statement of claim for punitive damages in the amounts of Cdn$1
million against Source and an aggregate of Cdn$2 million against certain
officers of Source. A date has not been set for the plaintiffs' motion to amend
the statement of claim.
 
     On January 25, 1994, Mr. Lerch also commenced a proceeding against
Cableshare and several persons who are, or have been, officers and directors of
Cableshare claiming wrongful termination of Mr. Lerch's employment with
Cableshare and seeking damages in the amount of Cdn$350,000. Cableshare has
denied the claim. Cableshare may be obligated to pay up to Cdn$100,000 in costs
to defend these persons. The trial of this action began in London, Ontario on
April 23, 1996 and was completed May 3, 1996. Judgment was reserved.
 
     Little.  William T. Little, a stockholder and former director of Source,
has represented in letters to Source that a potential lawsuit existed by various
convertible noteholders, alleging that they converted their notes based upon
misrepresentations by Source. Mr. Little also claims that Source offered to
issue to Mr. Little, during the time he was serving as a director of Source,
171,000 Source Common Shares in consideration of his release of any claims
related to such alleged misrepresentations. In addition, Mr. Little has claimed
that Source agreed to pay him approximately $81,000 relating to the conversion
of certain convertible notes held by Mr. Little. Source disputes all such claims
by Mr. Little.
 
     Revenue Canada.  Revenue Canada, the Canadian taxing authority, sent a
notice of reassessment to Cableshare on June 10, 1993 which, if valid, will
reduce Cableshare's investment tax credits by Cdn$1.9 million. Cableshare
disputes such assessment. In addition, Revenue Canada has demanded repayment
from Cableshare of refundable tax credits paid for the 1988 fiscal year
totalling Cdn$315,000. Including accumulated interest of Cdn$425,000, the
liability as of March 31, 1996 was Cdn$740,000. Cableshare has appealed the
assessment. The appeal, which will be heard by the Tax Court of Canada, is
scheduled for a hearing on February 24, 1997. Cableshare has provided for the
demanded repayment, including interest, in its consolidated financial
statements.
 
     Others.  Source is aware of certain claims against Source and Cableshare
that have not developed into litigation, or if they have, are dormant. Unnamed
Cableshare Shareholders advised the Cableshare directors in June 1995 that they
questioned certain of the directors' actions under Ontario law. Cableshare's
attorney responded to the shareholders' substantive points and the shareholders
have not taken further action. In June 1989, Barry Walker commenced a proceeding
in Ontario, Canada against Cableshare claiming wrongful termination of Mr.
Walker's employment with Cableshare and seeking damages in the amount of
Cdn$560,000 plus interest and costs. Cableshare denied the claims and this
matter has been inactive since at least June 1992.
 
     Further, Source and Cableshare are parties to ordinary routine litigation
incidental to their business, none of which is expected to have a material
adverse effect on Source's results of operations or financial condition.
 
                                       33
<PAGE>   35
 
                             BUSINESS OF CABLESHARE
 
HISTORY AND INCORPORATION
 
     Cableshare has its principal office at 150 Dufferin Avenue, Suite 906,
London, Ontario N6A 5N6. It is a reporting issuer in the Provinces of Ontario,
British Columbia, Alberta, Saskatchewan and Manitoba. Cableshare was founded on
July 13, 1973.
 
BUSINESS
 
     During the 1970s, Cableshare provided a computerized, timeshared accounting
system for several cable companies including Rogers Communications Inc. In the
early 1980s, Cableshare developed a two-way alarm system which was delivered
over a cable service in Syracuse, New York. Also in the early 1980s, the Company
provided Ford Motor Credit Corporation with a packet-switched network linking
its offices across North America. In the late 1980s, Cableshare developed an
interactive television system which was used in a trial of a home shopping
service by J.C. Penney Company, Inc. to 10,000 homes in Chicago.
 
     Over the past ten years, this interactive television system has been
improved to include many technological advances. Cableshare's interactive
television system is a multi-user, multimedia system designed to deliver
pictures, text, graphics and audio on demand to a user's television set through
existing coaxial cable television and telephone networks. This system stores the
video and audio presentations in a compressed digital form on a computer hard
drive. Cableshare's system can be enhanced to deliver full-motion interactive
programming when used with broadband digital networks. The modular design of
Cableshare's latest generation of technology allows for numerous presentations
to be available. Efficiencies derived in the new design have also reduced the
access time to approximately one second. The access time is the length of time
from the user pressing a button on the remote control until the picture is
presented on the television set. Cableshare positions its interactive television
technology as a platform for delivering home shopping and information services.
 
     More than $35 million has been invested in the development of this
technology. Three patents have been issued to Cableshare by the U.S. Patent
Office and two patents have been issued under Canadian law covering the delivery
of video presentations over cable and broadcast systems.
 
     Cableshare derives revenues from license fees, development of technology
and technical support for live operations. Cableshare has license agreements
with GTE Corporation and IT. Source utilizes Cableshare's interactive television
system to deliver the services to cable subscribers through the Interactive
Channel.
 
THE INTERACTIVE CHANNEL AND GTE MAINSTREET
 
     Cableshare has entered into the Licensing Agreement in which Cableshare
granted IT and Source exclusive global rights, subject to certain existing
rights, to utilize Cableshare's technology in the deployment and operation of
the Interactive Channel. The Licensing Agreement suspends the application of the
previous nonexclusive agreement, which would be reinstated upon the termination
or expiration without renewal of the Licensing Agreement. Source has paid
Cableshare the total $4.75 million due to Cableshare under the Licensing
Agreement. In addition, the original license agreement required Source to
achieve certain subscriber levels by June 1996 to maintain the Cableshare
license in effect. The Licensing Agreement waives the subscriber requirement and
addresses the coordination of future research and development efforts.
 
     Cableshare has licensed its patent rights to GTE for a fee as part of the
settlement of Cableshare's litigation with GTE over patent infringement.
 
DEVELOPMENT OF THE NEW INTERACTIVE TELEVISION SYSTEM
 
     Under the Licensing Agreement, Cableshare is developing a new interactive
television system based on its patented process for use by the Interactive
Channel. The new system is intended to utilize advances in technology, software
and computer systems in conjunction with Cableshare's engineering, software
development and system integration experience to deliver an interactive
television system that is low cost, reliable, easy to maintain and user and
application developer friendly.
 
                                       34
<PAGE>   36
 
     Cableshare believes this system will have advantages over the other
interactive television and interactive information delivery systems:
 
     Speed
 
     In response to a subscriber's request, the system will provide high quality
     television pictures, text and graphics, accompanied by audio, to the
     subscriber's television set almost instantaneously given anticipated levels
     of use. Most information delivery systems, including the Internet, require
     the subscriber to wait several seconds or even minutes before information
     is delivered.
 
     Low Cost
 
     While the new system still requires an interactive television terminal in
     the subscriber's home, Cableshare's engineers have developed technology
     that has reduced the cost per household of the terminal to less than $200
     and are working to reduce the cost even further. Cableshare anticipates the
     cost of a terminal will be approximately $100 by the middle of 1997. Other
     information delivery systems require personal computers which cost over
     $1,000 or digital interactive set-top boxes with costs beginning at $350.
 
     User-Friendly
 
     The interactive television system is simple to use. By entering numbers on
     a television remote control in response to easy to understand menus and
     instructions, the user quickly accesses the desired information. In some
     other information delivery systems, a user must be proficient with a
     personal computer. However, several companies have introduced, or are
     planning to introduce, services that will allow users to access the
     Internet through the television using a remote control.
 
     Utilizes Existing Cable Television Infrastructure
 
     Through Cableshare's patented process, the interactive television system
     works in today's existing cable systems. For most other interactive
     television and information delivery systems, an expensive upgrade of the
     cable system to broadband digital systems is required. However, several
     companies have introduced, or are planning to introduce, services that will
     allow users to access the Internet through the television using a remote
     control.
 
     Allows for Expanded Features when Digital Cable Systems Become Available
 
     Some cable systems are beginning to upgrade to broadband digital
     infrastructures. As these upgrades occur, Cableshare believes its new
     interactive television system can be enhanced to allow the same features
     that other interactive systems provide such as computer animation and full
     motion video.
 
EMPLOYEES
 
     As of November 15, 1996, Cableshare had a total of 41 full- and part-time
employees. None of Cableshare's employees is subject to a collective bargaining
agreement. Cableshare has experienced no work stoppages and believes that it has
good relations with its employees.
 
REGULATORY MATTERS
 
     Source and GTE are presently the exclusive marketers of Cableshare's
technology in the form of the Interactive Channel. Because the present
distribution agreements for the Cableshare technology are for distribution in
the United States, and additional distribution arrangements are also anticipated
to be for the United States, the regulatory environment in the United States is
also applicable to Cableshare. See "Business of Source -- Regulatory Matters."
Cableshare has complied with FCC, and the Canadian equivalent, regulations
pertaining to the manufacture of the subscriber home terminal.
 
PROPRIETARY RIGHTS AND INTELLECTUAL PROPERTY
 
     Patents.  The deployment and operation of the Interactive Channel utilizes
technology owned by Cableshare. The technology is the subject of three United
States patents issued to Cableshare and expiring in 2005, 2007 and 2008,
respectively, and two Canadian patents. The Cableshare patents issued in the
United States protect a system for delivering still-frame television images and
accompanying audio to television
 
                                       35
<PAGE>   37
 
viewers in response to viewer requests. This protection covers multiple
transmission media, including UHF, microwave, cable line and satellite. The
patents cover technology within such a system that enables different viewers to
receive video images over different television channels. In addition, the
patents include protection for the implementation of an interactive television
system on a cable network.
 
     Pursuant to an agreement entered into in November 1988, Cableshare received
a grant from the National Research Council of Canada ("NRC") to develop an
on-line television system. Under the terms of this agreement, Cableshare was
required to obtain the approval of the NRC in order to license its technology to
Source. The approval was expressly conditioned upon such license being a
non-exclusive license and further provided the NRC the right to rescind its
approval on reasonable cause. The termination of the Cableshare license could
have a material adverse effect on Source's ability to develop, deploy and
operate the Interactive Channel. The NRC also has the right, if it determines
that Cableshare has failed to diligently pursue commercial opportunities for the
application of Cableshare's technology, to require Cableshare to grant it a
license for reasonable compensation, to the extent necessary to enable the NRC
to sublicense to others the use of Cableshare's technology.
 
     Source and Cableshare are currently working without the financial support
of the NRC to translate the software supporting the Cableshare technology for
utilization on a UNIX-based operating system. If successfully developed,
Cableshare believes that this software could make the NRC-funded software
obsolete and that any licenses of this software would not be subject to the NRC
rescission rights. The NRC does not have any rights to the Cableshare patents
which are used by Source in connection with the NRC-funded Cableshare
technology. No assurance can be given as to when or if such software translation
can be completed. Cableshare's primary source of revenues is from the License
Agreement. Therefore, Cableshare's ability to develop the new system will be
dependent upon the available cash of Source or Cableshare's ability to generate
additional sources of revenue.
 
     Source's and Cableshare's future success will depend in part on
Cableshare's ability to protect and maintain the proprietary nature of its
technology. In 1995, GTE sued Cableshare seeking to invalidate Cableshare's
United States patents that are licensed to and utilized by Source in connection
with the Interactive Channel. Cableshare filed a counter-action against GTE
claiming infringement by GTE of Cableshare's patents in connection with GTE's
"MainStreet" on-line television channel. In early 1996, Cableshare and GTE
settled the litigation. The settlement included an undisclosed fee paid to
Cableshare and the grant to GTE of a license to use the Cableshare technology.
Any resulting increase in competition as a result of the license could
materially adversely affect the business of Cableshare and Source.
 
DESCRIPTION OF PROPERTY
 
     Cableshare leases approximately 11,100 square feet of office space at 150
Dufferin Avenue, Suite 906, London, Ontario. Cableshare conducts all of its
business from this office space.
 
LEGAL PROCEEDINGS
 
     Lerch.  In January 1994, Marvin Lerch, the former Chief Executive Officer
and a shareholder of Cableshare filed a claim for wrongful termination of Mr.
Lerch's employment with Cableshare seeking Cdn$350,000 in damages. Cableshare
believes the allegations are without merit and has vigorously defended this
suit. The trial of this action began in London, Ontario, on April 23, 1996, and
was completed on May 3, 1996. Judgment was reserved. In January 1994 the same
person also commenced an action in which several persons are defendants who are,
or have been, officers or directors of Cableshare, alleging activities intended
to depress the value of Cableshare shares. Cableshare may be obligated to pay up
to Cdn$100,000 in costs to defend these persons.
 
     Revenue Canada.  Revenue Canada, the Canadian taxing authority, sent a
notice of reassessment to Cableshare on June 10, 1993 which, if valid, will
reduce Cableshare's investment tax credits by Cdn$1.9 million. Cableshare
disputes such assessment. In addition, Revenue Canada has demanded repayment
from Cableshare of refundable tax credits paid for the 1988 fiscal year
totalling Cdn$315,000. Including accumulated interest of Cdn$425,000, the
liability as of March 31, 1996 was Cdn$740,000. Cableshare has appealed the
assessment. The appeal, which will be heard by the Tax Court of Canada, is
scheduled for a hearing on February 24, 1997. Cableshare has provided for the
demanded repayment, including interest, in its consolidated financial
statements.
 
                                       36
<PAGE>   38
 
                              MANAGEMENT OF SOURCE
 
DIRECTORS AND EXECUTIVE OFFICERS
 
     The directors and executive officers of Source are as follows:
 
<TABLE>
<CAPTION>
                NAME                     AGE                 POSITION WITH SOURCE
- -------------------------------------    ----    ---------------------------------------------
<S>                                      <C>     <C>
                                                 Chairman of the Board and Chief Executive
Timothy P. Peters....................    39      Officer
John J. Reed.........................    39      President and Director
W. Scott Bedford.....................    39      Chief Operating Officer and Director
Michael G. Pate......................    40      Chief Financial Officer and Treasurer
John F. Baring.......................    49      Director
Alan M. Flaherty.....................    56      Director
Rhodric C. Hackman...................    49      Director
David L. Kuykendall..................    43      Director
Michael J. Marocco...................    38      Director
James L. Greenwald...................    70      Director
</TABLE>
 
     Mr. Peters has served as President and a director of IT since its inception
in 1988 and was elected Chief Executive Officer in December 1992 and Chairman of
the Board of IT in August 1994. Mr. Peters has served as Chairman of the Board
and a director of Source since June 23, 1995, the effective date of the Merger.
In 1986, Mr. Peters founded Information Express, Co., an operator-assisted
Yellow Pages company that served the Denver area, where he acted as a Vice
President from 1986 to 1988. From 1979 to 1986, Mr. Peters served as Regional
Manager for Penn Central Telecommunications Company.
 
     Mr. Reed has served as a director of IT since its inception in 1988 and as
Executive Vice President of Strategic Development of IT since December 1992. Mr.
Reed has served as Executive Vice President and a director of Source since June
23, 1995, the effective date of the Merger and the President of Source since May
22, 1996. From 1990 to December 1992, Mr. Reed served in various positions with
IT, including Executive Vice President of Sales and Marketing. Mr. Reed was
Chairman of the Board of Cableshare from November 1991 to October 1993. From
1986 to 1989, Mr. Reed was President of Reed & Associates, a Dallas-based real
estate brokerage and professional services firm, of which he is the sole
shareholder. Mr. Reed has conducted business through this firm from time to time
since 1989.
 
     Mr. Bedford has served as a director of IT since its inception in 1988 and
as Chief Operating Officer of IT since December 1992. Mr. Bedford has served as
Chief Operating Officer and a director of Source since June 23, 1995, the
effective date of the Merger. From 1988 to December 1992, Mr. Bedford served in
various positions with IT, including Executive Vice President, Vice President of
Sales and Secretary. Since October 1993, Mr. Bedford has served as Chairman of
the Board of Cableshare.
 
     Mr. Pate has served as Chief Financial Officer and Treasurer of IT since
March 1992. Mr. Pate has served as Chief Financial Officer and Treasurer of
Source since June 23, 1995, the effective date of the Merger. From August 1989
to March 1992, he served as Vice President of Finance and Chief Financial
Officer of Dallas Semiconductor Corporation. From 1984 to 1989, Mr. Pate held
the positions of Assistant Controller and Controller at Dallas Semiconductor
Corporation. From 1979 to 1981, Mr. Pate was a Senior Auditor with Ernst & Young
LLP. Mr. Pate is a CPA.
 
     John F. Baring has been a director of Source since its inception in January
1993. Mr. Baring was a founder of HBAC and served as Chairman of the Board and
Secretary of HBAC from January 1993 until June 23, 1995, the effective date of
the Merger. Since January 1991, Mr. Baring has been a principal of Hackman,
Baring & Co., Incorporated (and its predecessor partnership), a private
investment banking firm founded by Messrs. Baring and Hackman focused on the
communications industry. From April 1990 to December 1990, Mr. Baring was a
consultant to the communications industry. Between April 1989 and March 1990, he
was Managing Director, Financial Services, of GPA Group Limited, Shannon,
Republic of Ireland, an aircraft leasing firm. From September 1984 to March
1989, Mr. Baring was employed by Kidder, Peabody & Co. Incorporated, where, from
September 1987, he served as co-head of the Telecommunications Group.
 
                                       37
<PAGE>   39
 
     Alan M. Flaherty has served as director of IT since August 1994 and as
director of Source since June 23, 1995, the effective date of the Merger. Mr.
Flaherty has been the president of ComPlan, Incorporated, a media consulting
firm since its founding in 1985. He has served as a consultant to the media
business, including companies such as TV Guide, the Orange County Register,
BellSouth, Pacific Bell Directory, the San Diego Times Union and the San
Francisco Newspaper Agency. From 1981 to 1982, he was employed at Golden West
Entertainment, as Vice President and General Manager. Prior to 1981, he was
employed at Colony Communications, Inc. and the New York Daily News.
 
     Rhodric C. Hackman has been a director of Source since its inception in
January 1993. Mr. Hackman was a founder of HBAC and served as President and
Treasurer of HBAC from January 1993 until June 23, 1995, the effective date of
the Merger. Since January 1991, Mr. Hackman has been a principal of Hackman,
Baring & Co., Incorporated (and its predecessor partnership). From April 1981
through December 1991, Mr. Hackman was employed by Kidder, Peabody & Co.
Incorporated where, from 1984 to 1991, he specialized in the communications
industry and, from September 1987 to April 1989, served as co-head of the
Telecommunications Group.
 
     David L. Kuykendall has served as a director of IT since 1993 and as a
director of Source since June 23, 1995, the effective date of the Merger. He has
served as Senior Vice President and Chief Financial Officer of Freedom since
1993 and served as its Vice President and Chief Financial Officer from 1990 to
1993 and as its Controller from 1989 to 1990. From 1986 to 1988, Mr. Kuykendall
was a Senior Manager with Deloitte & Touche LLP.
 
     Michael J. Marocco has served as a director of Source since May 1996. Mr.
Marocco is a Managing Director of Sandler Capital Management ("Sandler") and has
been associated with Sandler since April 1989. Prior to that, Mr. Marocco was a
vice president at Morgan Stanley & Co. Incorporated where he was involved in
raising capital and merger and acquisition transactions. Mr. Marocco serves as a
director of YES! Entertainment Corp. and Paxson Communications Corp.
 
     James L. Greenwald has served as a director of Source since May 1996. Mr.
Greenwald has served as chairman emeritus of Katz Media Corporation ("Katz"), a
communications representative firm, since August 1995. Mr. Greenwald joined Katz
in 1956 and has held various positions, including President of the radio
division from 1965 through 1970, Executive Vice President from 1970 through
1975, President from 1975 through 1982 and Chairman of the Board of Directors
and Chief Executive Officer from 1975 through 1994. Mr. Greenwald is a director
of Granite Broadcasting Company and the Young Adult Institute, an honorary
trustee of the Foundation of American Women in Radio and Television and past
president of the International Radio and Television Foundation and the Station
Representatives Association.
 
     Source, Timothy P. Peters, W. Scott Bedford, John J. Reed and Michael G.
Pate have entered into an agreement with Freedom whereby they have agreed to use
all reasonable efforts to cause an officer or director of Freedom or any of its
subsidiaries, as designated by Freedom (presently, David L. Kuykendall) to be
nominated and elected to Source's Board. In addition, Freedom was granted the
right to have an observer attend meetings of the directors if its designee is
unable to attend. The agreement will remain in effect so long as Freedom owns
beneficially 325,000 or more Source Common Shares as adjusted for any stock
dividends, combinations or splits.
 
COMPENSATION OF DIRECTORS
 
     Directors of Source who are not full-time employees are paid a retainer of
$2,500 per fiscal quarter and $1,000 for each meeting of the Board of Directors
or any committee thereof that they attend (so long as the committee meeting is
not on the same day as a Board of Directors meeting), or $500 for each telephone
meeting in which they participate. The 1995 Nonqualified Stock Option Plan for
Non-Employee Directors (the "Directors' Plan") provides for an automatic annual
grant of an option to purchase 3,000 Source Common Shares to each non-employee
director. Options will have an exercise price equal to the fair market value of
the Source Common Shares on the date of grant and will be exercisable at any
time from the date of grant until the fifth anniversary thereof.
 
     The Board of Directors has established standing audit, compensation and
stock option and nominating committees. The members of the audit committee are
Messrs. Hackman and Kuykendall. The members of
 
                                       38
<PAGE>   40
 
the compensation and stock option are Messrs. Baring and Flaherty. The members
of the nominating committee are Messrs. Greenwald, Morocco, Peters and Reed.
 
EXECUTIVE COMPENSATION
 
     The following table sets forth certain information with respect to annual
compensation paid for the years indicated to Source's Chief Executive Officer
and the other executive officers of Source who received compensation in excess
of $100,000 (the "Named Officers").
 
<TABLE>
<CAPTION>
                                                                        LONG-TERM
                                                    ANNUAL             COMPENSATION
                                                COMPENSATION  (1)      COMMON STOCK
                                               -------------------      UNDERLYING       ALL OTHER
    NAME AND PRINCIPAL POSITION        YEAR    SALARY(2)    BONUS        OPTIONS        COMPENSATION
- ------------------------------------   -----   --------    -------     ------------     ------------
<S>                                    <C>     <C>         <C>         <C>              <C>
Timothy P. Peters...................    1995   $125,000    $56,121         7,554              --
Chairman of the Board and               1994   $125,000    $63,410            --              --
Chief Executive Officer                 1993   $125,000    $13,396         2,016              --

John J. Reed........................    1995   $125,000    $39,854         7,097              --
President                               1994   $125,000    $62,097            --              --
                                        1993   $125,000    $ 6,186         2,016              --

W. Scott Bedford....................    1995   $125,000    $43,604         7,097              --
Chief Operating Officer                 1994   $125,000    $60,063            --              --
                                        1993   $125,000    $ 7,186         2,016              --

Michael G. Pate.....................    1995   $125,000    $50,007         1,331              --
Chief Financial Officer and             1994   $125,000    $23,832            --              --
Treasurer                               1993   $125,000    $10,300         2,016              --
</TABLE>
 
- ---------------
 
(1) Amounts earned in a year but deferred at the election of Source to a
    subsequent year have been included in the year in which the amounts were
    paid. Amounts earned under Source's Annual Management Incentive Plan in each
    year presented are included for the relevant year. All bonus amounts paid in
    1994 represent salary deferred in earlier periods.
 
(2) In April, 1996, the annual salaries of Mr. Peters, Mr. Reed, Mr. Bedford and
    Mr. Pate were increased to $225,000, $210,000, $210,000 and $200,000,
    respectively.
 
     No individual named above received perquisites or non-cash compensation
during any of the years indicated exceeding the lesser of $50,000 or an amount
equal to 10 percent of such person's annual salary and bonus.
 
                                       39
<PAGE>   41
 
OPTIONS/SAR GRANTS IN LAST FISCAL YEAR
 
     The following table sets forth, with respect to all options granted during
Source's 1995 fiscal year to Mr. Peters and Source's executive officers other
than Mr. Peters: (i) the number of Source Common Shares covered by such options,
(ii) the percent that such options represent of total options granted to all
Company employees during the 1995 fiscal year, (iii) the exercise price, (iv)
the expiration date, and (v) the potential realized value at the assumed annual
rates of stock price appreciation of 5% and 10% compounded over the term of the
option. To date, Source has granted no stock appreciation rights ("SARs").
 
<TABLE>
<CAPTION>
                                                                                              POTENTIAL REALIZED
                                                                                               VALUE AT ASSUMED
                                                 INDIVIDUAL GRANTS                             ANNUAL RATES OF
                         ------------------------------------------------------------------      STOCK PRICE
                                                PERCENT OF TOTAL                               APPRECIATION FOR
                          NUMBER OF SHARES     OPTIONS GRANTED TO    EXERCISE                  OPTION TERMS (2)
                         UNDERLYING OPTIONS    EMPLOYEES IN 1995     PRICE PER    EXPIRATION  ------------------
         NAME               GRANTED (1)           FISCAL YEAR          SHARE        DATE        5%         10%
- ----------------------   ------------------    ------------------    ---------    ---------   -------    -------
<S>                      <C>                   <C>                   <C>          <C>         <C>        <C>
Timothy P. Peters.....            887                 0.4%            $  9.77      02/21/05   $ 4,515    $12,329
                                6,667                 3.0%              11.50      10/16/05    22,401     81,137

John J. Reed..........            430                 0.2%               9.77      02/21/05     2,189      5,977
                                6,667                 3.0%              11.50      10/16/05    22,401     81,137

W. Scott Bedford......            430                 0.2%               9.77      02/21/05     2,189      5,977
                                6,667                 3.0%              11.50      10/16/05    22,401     81,137

Michael G. Pate.......          1,331                 0.6%               9.77      02/21/05     6,775     18,501
</TABLE>
 
- ---------------
 
(1) All options were granted at fair market value on the date of grant.
 
(2) The assumed 5% and 10% rates of stock price appreciation are specified by
    the SEC proxy rules and do not reflect expected appreciation. The amounts
    shown represent the assumed value of the stock options (less exercise price)
    at the end of the ten-year period beginning on the date of grant and ending
    on the option expiration date. For a ten-year period beginning December 31,
    1995, based on the closing price on the Nasdaq National Market of the Source
    Common Shares of $9.125 on such date, a Source Common Share would have a
    value on December 31, 2005 of approximately $14.86 at an assumed
    appreciation rate of 5% and approximately $23.67 at an assumed appreciation
    rate of 10%.
 
AGGREGATED OPTION/SAR EXERCISES IN LAST FISCAL YEAR AND FISCAL YEAR END
OPTION/SAR VALUES
 
     The following table sets forth for Mr. Peters and the executive officers of
Source other than Mr. Peters: (i) the number of Source Common Shares acquired
upon exercise of options during fiscal year 1995; (ii) the net aggregate dollar
value realized upon exercise: (iii) the total number of unexercised options held
at the end of fiscal year 1995; and (iv) the aggregate dollar value of
in-the-money unexercised options held at the end of fiscal year 1995. To date,
Source has issued no SARs.
 
<TABLE>
<CAPTION>
                                                                                      
                                                           NUMBER OF SHARES UNDERLYING       VALUE OF UNEXERCISED
                                                               UNEXERCISED OPTIONS         IN-THE-MONEY OPTIONS AT
                                                                DECEMBER 31, 1995             DECEMBER 31, 1995
                        SHARES ACQUIRED                    ---------------------------   ----------------------------
         NAME             ON EXERCISE     VALUE REALIZED   EXERCISABLE   UNEXERCISABLE   EXERCISABLE   UNEXERCISABLE
- ----------------------- ---------------   --------------   -----------   -------------   -----------   --------------
<S>                     <C>               <C>              <C>           <C>             <C>           <C>
Timothy P. Peters......          --                --         2,096          7,474             --              --

John J. Reed...........          --                --         1,639          7,474             --              --

W. Scott Bedford.......          --                --         1,639          7,474             --              --

Michael G. Pate........      60,468          $326,830         2,540            807             --              --
</TABLE>
 
OPTION AND OTHER BENEFIT PLANS
 
     Annual Management Incentive Plan.  Source's Annual Management Incentive
Plan (the "Incentive Plan") was established in 1992 and substantially amended in
1996. The Compensation Committee of Source believes that linking a substantial
portion of executive officer cash compensation to Company operating and
financial performance provides a meaningful incentive to such officers to
enhance Company performance. Accordingly, an integral part of executive officer
cash compensation is the use of cash bonuses under the Incentive Plan. The
majority of the bonus payments depends on achievement of corporate and
individual
 
                                       40
<PAGE>   42
 
goals, which are established quarterly to reflect those elements of Company
performance that the Compensation Committee deems of special significance in a
particular quarter, and the competitive environment in which the Company
operates. The remaining portion of the bonus may be paid at the discretion of
the Compensation Committee. Effective April 1, 1996, the maximum bonus that Mr.
Peters is eligible to receive was set at 50% of his base salary, and the maximum
bonus that the Company's other executive officers are eligible to receive was
set at 45% of their respective base salaries.
 
     1989 Stock Plan.  Source's 1989 Stock Plan (the "1989 Plan") was initially
approved by the board of directors and stockholders of Source effective as of
October 30, 1989. The 1989 Plan provides for the granting to key employees,
including officers and employee directors, of "incentive stock options" within
the meaning of Section 422 of the Internal Revenue Code of 1986, as amended, and
applicable regulations and rules promulgated thereunder (collectively, the
"Code"), and also the granting of "nonqualified stock options" to employees,
including officers and employee directors. Options granted under the 1989 Plan
are nontransferable and generally may be exercised only while an optionee is
employed by Source or within three months of termination. Generally, options
vest under the 1989 Plan in three equal annual installments. As of October 31,
1996, there were options outstanding under the 1989 Plan to purchase 17,016
shares of Source Common Shares at a weighted average exercise price of $1.64 per
share. Source currently does not intend to grant any additional options pursuant
to the 1989 Plan.
 
     The 1991 Stock Plan.  On December 6, 1991, the board of directors and
stockholders of Source adopted the 1991 Stock Plan (the "1991 Plan") covering up
to 134,375 Source Common Shares. As of July 1993, the board of directors and
stockholders of Source increased the number of shares of Source Common Shares
issuable under the 1991 Plan to an aggregate of 201,563 shares, subject to
adjustment as provided therein. The 1991 Plan provides for the granting of
incentive stock options to employees, including officers or employee directors,
as well as nonqualified stock options to consultants. Options granted under the
1991 Plan are nontransferable and generally may only be exercised while the
optionee is an employee of Source. Options generally expire 10 years after the
date of grant. As of October 31, 1996, there were options outstanding under the
1991 Plan to purchase 57,261 shares of Source Common Shares at a weighted
average exercise price of $9.76 per share. Source currently does not intend to
grant additional options under the 1991 Plan.
 
     The 1993 Stock Plan.  Effective as of November 11, 1993, Source's 1993
Stock Plan (the "1993 Plan") was approved by the board of directors and
stockholders of Source. Options granted under the 1993 Plan may be either
options which qualify for treatment as incentive stock options, or non-qualified
stock options. A maximum of 201,563 shares of Common Stock may be issued upon
the exercise of options granted under the 1993 Plan. Options granted under the
1993 Plan are nontransferable and generally may only be exercised while the
optionee is an employee of Source. Options generally expire 10 years after the
date of grant. As of October 31, 1996, there were options outstanding under the
1993 Plan to purchase 87,402 Source Common Shares at a weighted average exercise
price of $9.77 per share. Source currently does not intend to grant additional
options under the 1993 Plan.
 
     Flexible Benefits Plan.  Source has a pre-tax premium plan available to all
its employees pursuant to which employees are entitled to deduct employee-paid
premiums for Source's group life and medical plan from pre-tax salary, subject
to any limitations included in the plan.
 
     1995 Performance Equity Plan.  On March 11, 1995, the board of directors of
Source adopted the 1995 Performance Equity Plan (the "Equity Plan"). The Equity
Plan provides for the grant of options to purchase up to 500,000 Source Common
Shares to employees, officers, directors and consultants of Source and its
subsidiaries. The Equity Plan is intended to assist Source and its subsidiaries
in attracting, retaining and motivating employees, officers, directors and
consultants of particular merit.
 
     Pursuant to the Equity Plan, awards of (i) stock options, (ii) stock
appreciation rights, (iii) restricted stock, (iv) deferred stock, (v) stock
reload options and/or (vi) other stock-based awards (collectively, "Awards") may
be made. The committee administering the Equity Plan may determine the specific
type of Awards to be granted (e.g., stock option, restricted stock, etc.), the
number of shares subject to each Award, share prices, any restrictions or
limitations on such Awards and any vesting, exchange, deferral, surrender,
cancellation, acceleration, termination, exercise or forfeiture provisions
related to such Awards.
 
                                       41
<PAGE>   43
 
     Any equity security granted pursuant to the Equity Plan must be held for
six months from the date of grant or in the case of an option, at least six
months must elapse from the date of acquisition of the option to the date of
disposition of the option (other than upon exercise or conversion) or its
underlying equity security. In the event of a "change of control," as defined in
the Equity Plan, any option not then otherwise exercisable will immediately
become exercisable in full. Options generally expire 10 years after the date of
grant. As of October 31, 1996, there were options outstanding under the Equity
Plan to purchase 836,451 Source Common Shares at a weighted average exercise
price of $9.51. On October 31, 1996, there were 63,549 Source Common Shares
remaining available for future grant under the Equity Plan.
 
     Directors' Plan.  On September 24, 1995, the board of directors of Source
adopted the Directors' Plan, which was approved by Source's stockholders at the
1996 annual meeting. The Directors' Plan provides for the automatic annual grant
to each non-employee director of Source of an option to purchase 3,000 Source
Common Shares. Options granted under the Directors' Plan have an exercise price
equal to the fair market value of the Source Common Shares on the date of grant
and will be exercisable at any time from the date of grant until the fifth
anniversary thereof. The Directors' Plan provides for the grant of options to
purchase up to 150,000 Source Common Shares. As of October 31, 1996, there were
options outstanding under the Directors' Plan to purchase 12,000 Source Common
Shares at a weighted average exercise price of $10.61 per share.
 
     Employee Stock Purchase Plan.  In July 1996, the board of directors of
Source adopted the Employee Stock Purchase Plan (the "Employee Stock Plan"),
subject to approval by Source's stockholders at its 1997 annual meeting. Under
the Employee Stock Plan, eligible employees may purchase Source Common Shares at
a discount through voluntary monthly payroll deductions, beginning in September
1996. In connection with the Employee Stock Plan, Source has set aside 100,000
Source Common Shares held in treasury.
 
                              CERTAIN TRANSACTIONS
 
     On June 30, 1993, Source loaned $50,000 to an officer, director, and
stockholder. This loan is evidenced by a nonrecourse promissory note, as
amended, and bears interest at the rate of 10% per annum, with the principal
amount and accrued interest due and payable on May 31, 1997. Payment of the note
is secured by a pledge of 6,719 Source Common Shares. Amounts outstanding,
including accrued interest, are included in stockholders' equity (capital
deficiency) in the accompanying consolidated balance sheets.
 
     In May 1995, Source loaned $225,000 to an officer and stockholder. Such
loan is evidenced by a nonrecourse promissory note bearing interest at the rate
of 10% per annum, with principal and accrued interest due May 31, 1997. Payment
of the note is secured by a pledge of 24,188 Source Common Shares. During 1996,
the officer and stockholder repaid the note and all accrued interest through a
surrender of common shares with a fair market value equal to the outstanding
note and accrued interest as of the date of repayment.
 
                                       42
<PAGE>   44
 
                        PRINCIPAL STOCKHOLDERS OF SOURCE
 
     The following table sets forth certain information, as of December  , 1996
with respect to the Source Common Shares beneficially owned (i) by each director
and each Named Officer, (ii) by the directors and executive officers of Source
as a group and (iii) by each person known to Source to be the beneficial owner
of more than five percent of the Source Common Shares.
 
<TABLE>
<CAPTION>
                                                                          SHARES BENEFICIALLY
                                                                                 OWNED
                                                                          --------------------
NAME OF BENEFICIAL OWNER                                                   NUMBER      PERCENT
- ----------------------------------------------------------------------    --------     -------
<S>                                                                       <C>          <C>
Directors and Named Officers:

Timothy P. Peters (1).................................................    1,312,626
8140 Walnut Hill Lane, Suite 1000
Dallas, TX 75231

John J. Reed (2)......................................................      224,045
8140 Walnut Hill Lane, Suite 1000
Dallas, TX 75231

W. Scott Bedford (3)..................................................      470,814
8140 Walnut Hill Lane, Suite 1000
Dallas, TX 75231

Michael G. Pate (4)...................................................       31,645
8140 Walnut Hill Lane, Suite 1000
Dallas, TX 75231

John F. Baring (5)(6).................................................      107,624
89 June Road
North Salem, NY 10560

Alan M. Flaherty (7)..................................................        6,784
8140 Walnut Hill Lane, Suite 1000
Dallas, TX 75231

Rhodric C. Hackman (5)................................................      107,625
19 Scenery Hill Drive
Chatham, NJ 07928

David L. Kuykendall (8)...............................................      644,094
17666 Fitch
Irvine, CA 92714

James L. Greenwald (9)................................................        3,000
8140 Walnut Hill Lane, Suite 1000
Dallas, Texas 75231

Michael J. Marocco (10)...............................................    1,395,366
8140 Walnut Hill Lane, Suite 1000
Dallas, Texas 75231

All directors and executive officers as a group.......................    4,165,060
(ten persons)
</TABLE>
 
                                       43
<PAGE>   45
 
<TABLE>
<CAPTION>
                                                                          SHARES BENEFICIALLY
                                                                                 OWNED
                                                                          --------------------
                       NAME OF BENEFICIAL OWNER                            NUMBER      PERCENT
- ----------------------------------------------------------------------    --------     -------
<S>                                                                       <C>          <C>
Beneficial Owners of 5% or More (excluding persons named above):

Freedom Communications, Inc. (11).....................................     638,094
17666 Fitch
Irvine, CA 92714

21st Century Communications Partners, L.P. (12).......................     929,290
767 Fifth Avenue
New York, NY 10019
</TABLE>
 
- ---------------
 
  *  Less than one percent
 
(1)  Includes 3,834 Source Common Shares issuable upon exercise of options
     exercisable within 60 days and 608,635 Source Common Shares owned by
     certain other stockholders. Mr. Peters has the right to vote the 608,635
     Source Common Shares on all matters presented to the stockholders of
     Source, other than matters with respect to which the stockholders of Source
     have dissenters' rights, pursuant to a proxy granted to him under the Stock
     Purchase and Rights Agreement dated September 1, 1994 among Mr. Peters and
     certain other persons, including 21st Century Communications Partners,
     L.P., as purchasers, and several stockholders, including Thomas A.N. Miller
     and Nicholas Csendes, as sellers (the "Stock Purchase and Rights
     Agreement"). Mr. Peters has the right to purchase 96,776 of the Source
     Common Shares that he has the right to vote.
 
(2)  Includes 3,377 shares of Source Common Shares issuable upon exercise of
     options exercisable within 60 days and 24,687 Source Common Shares that may
     be purchased pursuant to the Stock Purchase and Rights Agreement.
 
(3)  Includes 3,377 shares of Source Common Shares issuable upon exercise of
     options exercisable within 60 days.
 
(4)  Includes 2,943 shares of Source Common Shares issuable upon exercise of
     options exercisable within 60 days.
 
(5)  Includes (i) 37,500 Source Common Shares held by Hackman, Baring & Co.,
     Incorporated as to which Messrs. Baring and Hackman have shared voting
     power and investment power, (ii) 25,000 Source Common Shares issuable upon
     exercise of a warrant granted to Hackman, Baring & Co., Incorporated, (iii)
     9,000 Source Common Shares that are subject to an option granted by
     Hackman, Baring & Co., Incorporated, and (iv) 6,000 Source Common Shares
     issuable upon exercise of options exercisable within 60 days.
 
(6)  Includes 8,333 Source Common Shares owned by a trust established for the
     benefit of one of Mr. Baring's children. Mr. Baring disclaims beneficial
     ownership of such shares.
 
(7)  Includes 6,000 Source Common Shares issuable upon exercise of options
     exercisable within 60 days.
 
(8)  Includes (i) 638,094 Source Common Shares beneficially owned by Freedom, as
     to which Mr. Kuykendall, a Senior Vice President and the Chief Financial
     Officer of Freedom, disclaims beneficial ownership, and (ii) 6,000 Source
     Common Shares issuable upon exercise of options exercisable within 60 days.
 
(9)  Includes 3,000 Source Common Shares issuable upon exercise of options
     exercisable within 60 days.
 
(10) Includes (i) 9,675 Source Common Shares issuable upon exercise of
     exercisable warrants and (ii) 3,000 Source Common Shares issuable upon
     exercise of options exercisable within 60 days that are held by Mr. Marocco
     individually. Mr. Marocco is a limited partner of 21st Century
     Communications Partners, L.P., 21st Century Communications T-E Partners,
     L.P. and 21st Century Communications Foreign Partners, L.P. Accordingly,
     also includes (iii) 293,341 Source Common Shares and (iv) 635,949 Source
     Common Shares issuable upon exercise of exercisable warrants held by 21st
     Century Communications Partners, L.P.; (v) 99,772 shares of Source Common
     Shares and (vi) 216,374 Source Common Shares issuable upon exercise of
     exercisable warrants held by 21st Century Communications T-E Partners,
     L.P., and (vii) 39,527 Source Common Shares and (viii) 85,615 Source Common
     Shares issuable upon exercise of exercisable warrants held by 21st Century
     Communications Foreign Partners, L.P.;
 
(11) Includes 638,094 Source Common Shares beneficially owned by Freedom, as to
     which Mr. Kuykendall, a Senior Vice President and Chief Financial Officer
     of Freedom, disclaims beneficial ownership.
 
(12) Includes 635,949 Source Common Shares issuable upon exercise of exercisable
     warrants. See (10) for certain information regarding Michael J. Marocco, a
     director of Source and limited partner of 21st Century Communications
     Partners, L.P.
 
                                       44
<PAGE>   46
 
                            MANAGEMENT OF CABLESHARE
 
EXECUTIVE OFFICERS AND DIRECTORS
 
     The executive officer and directors of Cableshare are as follows:
 
<TABLE>
<CAPTION>
                        NAME                      AGE                  POSITION
    --------------------------------------------- ---       ------------------------------
    <S>                                           <C>       <C>
    Michael Israel...............................           President, Chief Executive
                                                            Officer and Director
    W. Scott Bedford............................. 39        Chairman of the Board
    Terrence H. Pocock...........................           Director
    Gerald I. Quinn..............................           Director
    John W. Craig................................           Director
    David W. Pady................................           Director
</TABLE>
 
     Michael L. Israel has served as President and Chief Executive Officer of
Cableshare since December 1993 and has served as President of Cableshare US
(Ltd.) since October 1993. In January 1993, Mr. Israel was a founder of Quantum
Technologies Inc., a software consulting firm. From 1977 through 1992, Mr.
Israel served in various positions with Ameritech. During 1991 through 1992, Mr.
Israel served as Director, Business Development at Ameritech where he was
responsible for developing new business in the emerging electronic information
services industry.
 
     W. Scott Bedford has served as Chairman of the Board of Cableshare since
October 1993. See "Management of Source -- Executive Officers and Directors" for
additional information regarding Mr. Bedford.
 
     Gerald I. Quinn has served as a director of Cableshare since 1993. Mr.
Quinn is currently the President and Chief Executive Officer of Interpretel,
Inc. USA, and President, Chief Executive Officer and a director of its parent
company Wavetech, Inc. (ITEL, Nasdaq). Mr. Quinn has been the President of Quinn
and Associates since 1993. Prior to 1993, Mr. Quinn was a Vice President of a
major Canadian university. He was the founding Director of the Eaton Hall
Management Development Centre of Seneca College of Applied Arts and Technology,
and has served on the Advisory Board of the Toronto World Trade Centre and as a
director of the Guelph Chamber of Commerce.
 
     Terrence H. Pocock has served as the Vice Chairman of the Board of
Directors of Cableshare since 1992. Mr. Pocock was the founder of Cableshare in
1973, and was one of the inventors of the patents held by Cableshare. Mr. Pocock
is currently retired, after having served as the President, Chief Executive
Officer, and Chairman of the Board of Cableshare Inc. from 1973 until 1992.
 
     John W. Craig has served as a director of Cableshare since 1995 and was
recently appointed Secretary of the Company in June 1996. Mr. Craig has been a
lawyer in private practice since 1995. From 1975 through 1994, Mr. Craig was a
Partner of McMillan Binch.
 
     David W. Pady has served as a Director of Cableshare since 1995. Mr. Pady
is the President and owner of Chardonnay Consultants Limited and has served in
this capacity since 1974.
 
COMPENSATION OF DIRECTORS
 
     During 1996, directors of Cableshare who were not full-time employees were
paid Cdn$12,000, and directors serving on the Special Committee of the
Cableshare Board of Directors were paid an additional Cdn$13,000. In 1996, the
Cableshare Board of Directors granted options to its members that were approved
by Cableshare's shareholders prior to the Arrangement. In connection with the
Arrangement Agreement those options were replaced with options representing the
right to acquire        Source Common Shares at a weighted average exercise
price of $       . In connection with the Arrangement, all options granted to
Mr. Bedford were canceled.
 
COMMITTEES OF THE BOARD OF DIRECTORS
 
     There are two standing committees of the board of directors. The first is
the audit committee which during the fiscal year ended March 31, 1996 consisted
of Terrence H. Pocock, Gerald I. Quinn and David W.
 
                                       45
<PAGE>   47
 
Pady. Following the Cableshare Shareholders Meeting at which the Arrangement was
approved, the same board members were appointed to the audit committee. Two of
the three committee members are unrelated directors. The committee is
responsible for reviewing Cableshare's financial reporting procedures, internal
controls and information systems and the performance of Cableshare's external
auditors.
 
     The other committee is the Special Committee that was appointed to manage
the relationship between Cableshare and its principal shareholder, IT. The
Special Committee is comprised of David W. Pady, Gerald I. Quinn and John W.
Craig, all of whom are unrelated directors with respect to IT and Source.
 
EXECUTIVE OFFICER'S COMPENSATION
 
     The following table sets forth certain information with respect to annual
compensation for the fiscal years indicated to Cableshare's Chief Executive
Officer. Cableshare has no other executive officers.
 
<TABLE>
<CAPTION>
                                                              ANNUAL COMPENSATION
                        NAME AND                      ------------------------------------
                   PRINCIPAL POSITION                 YEAR       SALARY           BONUS
    ------------------------------------------------  ----     -----------     -----------
    <S>                                               <C>      <C>             <C>
    Michael Israel..................................  1996     Cdn$125,286     Cdn$115,003
    President & Chief Executive Officer               1995     Cdn$119,400     Cdn$110,900
                                                      1994     Cdn$ 51,650     Cdn$ 44,650
</TABLE>
 
STOCK OPTION INFORMATION
 
     No options were granted to Mr. Israel during fiscal 1996.
 
                      PRINCIPAL STOCKHOLDERS OF CABLESHARE
 
     Source, together with its subsidiaries, owns 100% of Cableshare's
outstanding voting shares. To the knowledge of the directors and officers of
Cableshare, no persons or corporations beneficially owns, directly or
indirectly, or exercise control or direction over more than 5% of the
outstanding Exchangeable Shares.
 
                     DESCRIPTION OF CAPITAL STOCK OF SOURCE
GENERAL
 
     Source is authorized to issue 50,000,000 Source Common Shares, par value
$0.001 per share, and 1,000,000 shares of Preferred Stock, par value $0.001 per
share. As of December   , 1996, there were outstanding        Source Common
Shares, held of record by    stockholders. The Special Voting Share issued
pursuant to the Arrangement is the only share of Preferred Stock currently
outstanding. In addition, as of such date there were outstanding warrants and
options (including replacement options) entitling the holders thereof to
purchase an aggregate of           Source Common Shares and exchange rights
entitling the holder to acquire 206,376 Source Common Shares.
 
SOURCE COMMON SHARES
 
     The holders of Source Common Shares are entitled to one vote for each share
held of record on all matters to be voted on by stockholders. There is no
cumulative voting with respect to the election of directors. The holders of
Source Common Shares are entitled to receive dividends when, as and if declared
by the board of directors out of funds legally available therefor. In the event
of a liquidation, dissolution or winding up of the Source, the holders of Source
Common Shares are entitled to share ratably in all assets remaining available
for distribution to them after payment of liabilities and after provision has
been made for each class of stock, if any, having preference over the Source
Common Shares. Holders of Source Common Shares, as such, have no conversion,
preemptive or other subscription rights, and there are no redemption provisions
applicable to the Source Common Shares. All of the outstanding Source Common
Shares are fully paid and nonassessable.
 
PREFERRED STOCK
 
     Source's Certificate of Incorporation authorizes the issuance of 1,000,000
shares of preferred stock ("Preferred Stock") with such designations, rights and
preferences as may be determined from time to time by the board of directors of
Source. Accordingly, the board of directors of Source is empowered, without
stockholder approval, to issue Preferred Stock with dividends, liquidation,
conversion, voting or other rights
 
                                       46
<PAGE>   48
 
that could adversely affect the voting power or other rights of the holders of
Source Common Shares. The Preferred Stock could be utilized, under certain
circumstances, as a method of discouraging, delaying or preventing a change in
control or an acquisition of Source. Although Source has no plans or commitments
as of the date of this Prospectus to issue any shares of Preferred Stock, there
can be no assurance that Source will not do so in the future.
 
     Pursuant to the authority granted by Source's Certificate of Incorporation
and in connection with the Arrangement, Source's board of directors has created
a series of preferred stock. Only one share (the "Special Voting Share") is
authorized, and it has been issued to [TRUSTEE] to hold pursuant to the Voting
and Exchange Trust Agreement. The holder of the Special Voting Share is entitled
to a variable number of votes equal to the number of Exchangeable Shares
outstanding from time to time (the "Voting Rights").
 
WARRANTS
 
     Source has outstanding warrants to purchase an aggregate of 4,260,329
Source Common Shares. A brief description of such warrants follows.
 
     Public Warrants. A total of 4,653,000 warrants (the "Public Warrants") are
currently outstanding, each of which entitles the registered holder to purchase
one-half of a Source Common Share (2,326,500 shares in the aggregate) at a price
of $11.00 per share, subject to adjustment in certain circumstances, at any time
until 5:00 p.m., New York City time, on June 23, 2000, at which time the Public
Warrants will expire. Source may call the Public Warrants for redemption, in
whole or in part at a price of $0.01 per Public Warrant upon not less than 30
days prior written notice, provided that the last sale price of Source Common
Shares has been at least $20.00 ("Public Warrant Redemption Price") for the 20
consecutive trading days ending on the third business day prior to the date on
which the notice of redemption is given. The holders of Public Warrants have
exercise rights until the close of business on the date fixed for redemption.
The holders of Public Warrants do not have the rights or privileges of holders
of Source Common Shares prior to the exercise of the Public Warrants.
 
     The exercise price, number of Source Common Shares issuable on exercise of
the Public Warrants and Public Warrant Redemption Price are subject to
adjustment in certain circumstances including in the event of a stock dividend,
recapitalization, reorganization, merger or consolidation of Source. The Public
Warrants, however, are not subject to adjustment for issuances of Source Common
Shares at a price below their exercise price.
 
     Source has the right, in its sole discretion, to decrease the exercise
price of the Public Warrants for a period of not less than 30 days on not less
than 30 days' prior written notice to the warrantholders and to extend the
expiration date of the Public Warrants on five business days prior written
notice to the warrantholders.
 
     The Public Warrants were registered with the Securities and Exchange
Commission (the "Commission") under the Securities Act and are currently traded
on the OTC. Source is required to file with the Commission a current
registration statement covering the shares of Common Stock issuable upon
exercise of such Public Warrants and maintain the effectiveness of such
registration statement during the period the Public Warrants are exercisable. To
date, Source has not filed such a registration statement.
 
     The warrants issued to Hackman Baring & Co., Incorporated, entitling
Hackman, Baring & Co., Incorporated to purchase 25,000 Source Common Shares,
will have the same terms as the Public Warrants, except that they will not be
registered with the Commission. See "Certain Transactions."
 
     Brenner Warrants. Pursuant to an agreement dated January 19, 1994, HBAC
agreed to issue to Brenner Capital Corporation ("Brenner") warrants to purchase
28,302 Source Common Shares exercisable at a price of $10.60 per share (the
"Brenner Warrants"). The Brenner Warrants, which were issued on November 4,
1994, are exercisable until June 23, 1998. The Brenner Warrants contain
anti-dilution provisions providing for adjustment of the exercise price upon the
occurrence of certain events including the issuance of Source Common Shares or
other securities convertible into or exercisable for Source Common Shares at a
price per share less than the exercise price of the Brenner Warrants, or the
market price of the Source Common Shares, or in the event of any
recapitalization, reclassification, stock dividend, stock split, stock
combination or similar transaction.
 
                                       47
<PAGE>   49
 
     VSD Warrants. Four individuals own warrants to purchase an aggregate of
83,085 Source Common Shares at an exercise price of $10.80 per share, expiring
on February 1, 2001.
 
     Smith Warrants. The Revocable Trust for Kevin F. Smith, Jr. and James A.
Smith, III owns warrants to purchase 10,079 Source Common Shares at an exercise
price of $18.60 per share, expiring on February 10, 1998.
 
     Hartford and Dublind Warrants. Dublind Partners, Inc., an affiliate of
Dublind Securities, Inc., owns warrants to purchase 147,394 Source Common
Shares, and Security Insurance Company of Hartford owns warrants to purchase
105,282 Source Common Shares expiring on December 21, 2002. Pursuant to an
agreement entered into in September 1995, the exercise price of such warrants is
$10.50 per share.
 
     Funding Warrants. In May 1995, IT issued warrants to purchase an aggregate
of 1,034,687 shares of Common Stock at an exercise price of $7.44, exercisable
until May 17, 2000 (the "Funding Warrants"). The holders of the Funding Warrants
have demand and "piggyback" registration rights with respect to the securities
into which the Funding Warrants are exercisable.
 
     Northstar Warrants. On April 3, 1997, pursuant to the Senior Note
Agreement, Source issued a warrant entitling the holder thereof to purchase
500,000 Source Common Shares at a purchase price of $10.21 per share. Under the
Senior Note Agreement, if certain conditions are met and Source elects to issue
the Second Tranche Note, Source will be obligated to issue a second warrant
entitling the holder thereof to purchase an additional 500,000 Source Common
Shares at a purchase price of $10.21 per share. The warrant contains, and if
issued the second warrant will contain, standard anti-dilution provisions.
Source also granted demand and "piggyback" registration rights with respect to
the Source Common Shares underlying these warrants.
 
CABLESHARE REPLACEMENT OPTIONS
 
     Pursuant to the Arrangement Agreement, each of the options for Cableshare
Common Shares outstanding at the effective time of the Arrangement was exchanged
for an option (a "Replacement Option") to purchase Source Common Shares or, at
the election of the holder, Exchangeable Shares. The Replacement Options
represent the right to purchase           Source Common Shares at a weighted
average exercise price of $     per share and           Exchangeable Shares at a
weighted average exercise price of $     per share.
 
POCOCK EXCHANGE RIGHTS
 
     In September 1992, IT issued certain exchange rights (the "Pocock Exchange
Rights") to Terrence H. Pocock pursuant to an agreement (the "Pocock Agreement")
between Mr. Pocock and IT and a subsidiary of IT ("CanSub"). Under the Pocock
Agreement, Mr. Pocock exchanged 1,623,409 of Cableshare's Class A Shares and
843,818 of Cableshare's Class B Shares for 1,535,821 Class Y shares of CanSub
(the "Class y Shares"). Mr. Pocock subsequently transferred the Class Y Shares,
the Pocock Exchange Rights and certain other rights to his wife. In May 1993, in
accordance with the Pocock Agreement, IT loaned Mrs. Pocock $750,000, evidenced
by a promissory note due in May 2000, bearing interest at two percent per annum,
secured by a pledge of certain of the Class Y Shares and the Pocock Exchange
Rights and guaranteed by Mr. Pocock. The Pocock Exchange Rights entitle Mrs.
Pocock to exchange the Class Y Shares for 206,376 Source Common Shares of Common
Stock, without additional material consideration to Source, at any time through
February 28, 2000.
 
TRANSFER AGENT
 
     The transfer agent and registrar for the Source Common Shares is
ChaseMellon Shareholder Services at its Dallas, Texas offices. The transfer
agent and registrar for the Public Warrants is Continental Stock Transfer and
Trust Company at its principal office in New York, New York.
 
LIMITATION OF LIABILITY AND INDEMNIFICATION MATTERS
 
     The Certificate of Incorporation provides that directors of Source shall
not be personally liable to Source or its stockholders for monetary damages for
breach of fiduciary duty as a director, except for liability (i) for any breach
of the directors' duty of loyalty to Source or its stockholders, (ii) for acts
or omissions not in good
 
                                       48
<PAGE>   50
 
faith or which involve intentional misconduct or a knowing violation of law,
(iii) under Section 174 of the Delaware General Corporation Law (the "DGCL")
relating to prohibited dividends or distributions or the repurchase or
redemption of stock, or (iv) for any transaction from which the director derives
an improper personal benefit. If the DGCL is amended to authorize further
elimination or limitation of directors' liability, then the liability of
directors of Source shall automatically be limited to the fullest extent
provided by law. The Bylaws of Source also contain provisions to indemnify the
directors, officers, employees or other agents. These provisions may have the
practical effect in certain cases of eliminating the ability of stockholders to
collect monetary damages from directors.
 
PROVISIONS WITH POSSIBLE ANTI-TAKEOVER EFFECTS
 
     Provisions of the DGCL prohibit "business combinations" between Source and
certain stockholders unless the established requirements are met. Consequently,
the business combination provisions of the DGCL may have the effect of deterring
merger proposals, tender offers or other attempts to effect changes in control
of Source that are not negotiated with and approved by the Board of Directors.
 
     Additionally, the following provisions of Source's Certificate of
Incorporation and Bylaws may be considered to have anti-takeover implications:
(a) the ability of the board to increase the number of directors and fill (but
only until the next annual meeting of stockholders) the vacancies resulting from
such increase; and (b) the ability of the board of directors to establish the
rights of, and to issue, substantial amounts of preferred stock without the need
for stockholder approval which preferred stock, among other things, may be used
to create voting impediments with respect to changes in control of the Company
or to dilute the stock ownership of holders of shares of Common Stock seeking to
obtain control of the Company.
 
REGISTRATION RIGHTS
 
     Various stockholders of Source have certain demand and "piggyback"
registration rights with respect to a total of 1,910,182 Source Common Shares.
In addition, Source has granted demand and "piggyback" registration rights to
the holders of warrants and the Pocock Exchange Rights with respect to the
1,933,830 Source Common Shares underlying such warrants and the 206,376 Source
Common Shares underlying the Pocock Exchange rights.
 
                   DESCRIPTION OF CAPITAL STOCK OF CABLESHARE
 
AUTHORIZED SHARE CAPITAL
 
     Cableshare is authorized to issue an unlimited number of common shares, an
unlimited number of preference shares and an unlimited number of Exchangeable
Shares. As of December   , 1996,      common shares were outstanding, all of
which are held by Source and its subsidiaries, no preference shares were
outstanding and      Exchangeable Shares were outstanding, held of record by
     holders.
 
COMMON SHARES
 
     VOTING RIGHTS. The holders of common shares are entitled to receive notice
of and to attend all meetings of the shareholders of Cableshare and have one
vote for each common share held at all meetings of the shareholders of
Cableshare, except for meetings at which only holders of another specified class
or series of shares of Cableshare are entitled to vote separately as a class or
series.
 
     DIVIDENDS. Subject to the prior rights of the holders of any shares ranking
senior to the common shares with respect to priority in the payment of
dividends, the holders of common shares are entitled to receive dividends and
Cableshare may pay dividends thereon, as and when declared by the board of
directors of Cableshare, out of monies properly applicable to the payment of
dividends, in such amount and in such form as the board of directors may from
time to time determine. All dividends which the board of directors may declare
on the common shares shall be declared and paid in equal amounts per share on
all common shares at the time outstanding.
 
                                       49
<PAGE>   51
 
     DISSOLUTION. In the event of the dissolution, liquidation or winding up of
Cableshare, whether voluntary or involuntary, or any other distribution of
assets of Cableshare among its shareholders for the purpose of winding up its
affairs, subject to the prior rights of the holders of the Exchangeable Shares
and to any other shares ranking senior to the common shares with respect to
priority in the distribution of assets upon dissolution, liquidation or winding
up, holders of common shares are entitled to receive the remaining property and
assets of Cableshare rateably in accordance with the number of common shares
held.
 
PREFERENCE SHARES
 
     Cableshare may issue an unlimited number of preference shares without par
value. Currently, the Class A Preference Shares is the only class of preference
shares that has been created.
 
     CLASS A PREFERENCE SHARES. The Cableshare Board of Directors is authorized
to issue Class A Preference Shares from time to time in one or more series, with
such designation, rights, privileges, and conditions as may be determined by
such board of directors, subject to the restrictions set forth below. The Class
A Preference Shares shall have only those voting rights as are required by
applicable law. Upon the liquidation, dissolution or winding up of Cableshare,
the Class A Preference Shares rank senior to the common shares.
 
EXCHANGEABLE SHARES
 
     VOTING RIGHTS. The Exchangeable Shares are non-voting, except in
circumstances required by applicable law.
 
     DIVIDENDS. The Exchangeable Shares rank prior to the common shares and
shares of any other class ranking junior to the Exchangeable Shares with respect
to the payment of dividends. Each Exchangeable Share entitles the holder thereof
to dividends from Cableshare payable at the same time as, and in the Canadian
dollar equivalent of, each dividend paid by Source on each Source Common Share.
 
     DISSOLUTION. The Exchangeable Shares rank prior to the common shares and
shares of any other class ranking junior to the Exchangeable Shares with respect
to the distribution of assets in the event of a liquidation, dissolution or
winding up of Cableshare. Subject to the overriding call right of Source
referred to under "Plan of Distribution," upon the liquidation, dissolution or
winding up of Cableshare, a holder of Exchangeable Shares will be entitled to
receive for each such share an amount equal to the market price of one Source
Common Share, which will be satisfied by the delivery of one Source Common
Share, together with an additional amount equivalent to the full amount of all
declared and unpaid dividends on each Exchangeable Share. The purchase price per
Exchangeable Share payable by Source upon the exercise by it of the Liquidation
Call Right is the same as the liquidation entitlement relating to an
Exchangeable Share.
 
     RETRACTION AND EXCHANGE RIGHTS. The Exchangeable Shares are exchangeable
for Source Common Shares at the option of the holder at any time, through a
retraction provision attached to the Exchangeable Shares. Subject to the
overriding call right of Source referred to under "Plan of Distribution," upon
retraction the holder is entitled to receive from Cableshare for each
Exchangeable Share retracted an amount equal to the market price of one Source
Common Share, which amount will be satisfied by the delivery by or on behalf of
Cableshare of one Source Common Share, plus an additional amount equivalent to
the full amount of declared and unpaid dividends on each Exchangeable Share
retracted. The purchase price per Exchangeable Share payable by Source upon the
exercise by it of the Retraction Call Right is the same as the retraction
entitlement relating to an Exchangeable Share.
 
     AUTOMATIC REDEMPTION. Subject to the overriding call right of Source
referred to under "Plan of Distribution," Cableshare will redeem all of the
Exchangeable Shares then outstanding on the fifth anniversary of the Effective
Date (the "Automatic Redemption Date"); provided, that the board of directors of
Cableshare may delay indefinitely the Automatic Redemption Date and may
accelerate the Automatic Redemption Date at any time when there remain fewer
than 350,000 Exchangeable Shares outstanding (other than those held by Source
and its subsidiaries, and as such number may be adjusted by the board of
directors of Cableshare to give effect to any subdivision or consolidation of or
other changes to the Source Common Shares). Upon a redemption by Cableshare on
the Automatic Redemption Date, each holder of Exchangeable
 
                                       50
<PAGE>   52
 
Shares will be entitled to receive from Cableshare for each Exchangeable Share
redeemed an amount equal to the market price of one Source Common Share, which
amount will be satisfied by the delivery on behalf of Cableshare of one Source
Common Share, plus an additional amount equivalent to the full amount of all
declared and unpaid dividends on each Exchangeable Share to the Automatic
Redemption Date. The purchase price per Exchangeable Share payable by Source
upon the exercise by it of the Redemption Call Right is the same as the
automatic redemption entitlement relating to an Exchangeable Share.
 
                           INCOME TAX CONSIDERATIONS
 
UNITED STATES FEDERAL INCOME TAX CONSIDERATIONS FOR CABLESHARE SHAREHOLDERS
 
     In the opinion of Thompson & Knight, P.C., United States counsel to Source
and special United States tax counsel to Cableshare ("U.S. counsel"), the
following summarizes the material U.S. federal income tax considerations arising
from and relating to the ownership of Exchangeable Shares and the receipt and
ownership of Source Common Shares, that are generally applicable to holders of
Exchangeable Shares that are U.S. citizens or residents, domestic corporations,
domestic partnerships, and estates or trusts subject to U.S. federal income tax
on their income regardless of source ("U.S. Holders") and to certain holders of
Exchangeable Shares that are not U.S. Holders ("non-U.S. Holders"). This summary
is intended for general information only. It does not discuss all aspects of
U.S. federal income taxation that may be relevant to a particular U.S. Holder
(including, without limitation, potential application of the alternative minimum
tax), to a particular non-U.S. Holder, or to certain types of investors subject
to special treatment under the U.S. federal income tax laws (for example, banks,
life insurance companies, tax-exempt organizations, broker-dealers or U.S.
Holders who received their Cableshare Common Shares or Exchangeable Shares as
compensation), nor does it discuss any aspect of state, local or foreign tax
laws.
 
     This summary is based on U.S. laws, regulations, rulings and decisions
currently in effect, all of which are subject to change, possibly with
retroactive effect. In addition, U.S. Holders and non-U.S. Holders (collectively
"Holders") should note that there is no statutory, judicial or administrative
authority that directly addresses certain of the U.S. federal income tax
consequences of the issuance and ownership of instruments and rights comparable
to the Exchangeable Shares, the Voting Rights, the Trustee Exchange Rights and
the Call Rights. Consequently (as discussed more fully below), the U.S. federal
income tax treatment of the ownership and disposition of Exchangeable Shares, is
uncertain. No advance income tax ruling has been sought or obtained from the
U.S. Internal Revenue Service ("IRS") regarding the tax consequences of any of
the transactions described herein. Accordingly, it is possible that the U.S.
federal income tax consequences of the ownership and disposition of the
Exchangeable Shares may differ from those described below.
 
     Certain of the discussions herein provide that a Holder has a "reasonable
basis" for taking a position on its U.S. tax return ("Reasonable Basis"). A
Reasonable Basis exists when a return position has a realistic possibility of
being sustained on the merits (that is, generally, the return position has
approximately a one-in-three, or greater, likelihood of being sustained on its
merits). As to discussions of Reasonable Basis herein, U.S. counsel has
expressed no opinion as to whether (a) the position is more likely than not to
be sustained on the merits, or (b) there is substantial authority for such
position as defined in section 6662 of the Internal Revenue Code of 1986, as
amended (the "Code"). Holders taking such positions are urged to consult their
tax advisors regarding the possible application of penalties, as discussed in
more detail below.
 
     HOLDERS ARE URGED TO CONSULT THEIR TAX ADVISORS WITH RESPECT TO THE U.S.
FEDERAL, STATE, AND LOCAL TAX CONSEQUENCES AND THE FOREIGN TAX CONSEQUENCES OF
THE RECEIPT AND OWNERSHIP OF EXCHANGEABLE SHARES, VOTING RIGHTS, TRUSTEE
EXCHANGE RIGHTS OR SOURCE COMMON SHARES.
 
TAXATION OF U.S. HOLDERS
 
     The following summary is limited to U.S. Holders (i) who hold Exchangeable
Shares as "capital assets" within the meaning of section 1221 of the Code, (ii)
who will hold Source Common Shares as "capital
 
                                       51
<PAGE>   53
 
assets," (iii) who do not actually or constructively own (and have not at any
time in the preceding five-year period actually or constructively owned) 10% or
more of the voting stock of Cableshare or Source, as the case may be, (iv) whose
ownership, receipt and disposition of Exchangeable Shares and Source Common
Shares is not attributable to a permanent establishment in Canada, and (v) in
the case of individuals, who are not residents of Canada for purposes of
Canadian tax law.
 
     Exchange, Retraction or Redemption of Exchangeable Shares.  Although the
matter is not free from doubt, Cableshare and Source have been advised that
there is a Reasonable Basis on which to conclude that the exchange, retraction,
or redemption of the Exchangeable Shares for Source Common Shares will be
treated as a taxable event for U.S. federal income tax purposes. If the exchange
is a taxable event, and the U.S. Holder receives Source Common Shares from
Source pursuant to the Call Rights:
 
    (1) a U.S. Holder generally would recognize gain or loss equal to the
        difference between the fair market value of the Source Common Shares at
        the time of the exchange (together with cash equal to the full amount of
        all declared but unpaid dividends on the Exchangeable Shares (if any)
        and cash in lieu of fractional shares (if any)) and the U.S. Holder's
        tax basis in the Exchangeable Shares;
 
    (2) such gain or loss would generally be capital gain or loss, except that
        a holder may recognize amounts attributable to any declared but unpaid
        dividends on the Exchangeable Shares as ordinary income which may be
        treated as U.S. source income;
 
    (3) any capital gain or loss would be long-term capital gain or loss if
        the Exchangeable Shares (together with the pre-conversion Cableshare
        Common Shares) have been held for more than one year at the time of the
        exchange and otherwise would be short-term capital gain or loss;
 
    (4) the U.S. Holder would take as its tax basis in the Source Common
        Shares the fair market value of the Source Common Shares at the time of
        the exchange;
 
    (5) the holding period of the Source Common Shares received by the U.S.
        Holder in the exchange would begin on the day after the U.S. Holder
        receives the Source Common Shares; and
 
    (6) gain recognized on the exchange of Exchangeable Shares for Source
        Common Shares generally will be treated as U.S. source gain.
 
     If the receipt of Source Common Shares is effected through a retraction or
redemption of Exchangeable Shares with respect to which Source does not exercise
its overriding Call Right, and thus, the Source Common Shares are distributed to
a U.S. Holder directly by Cableshare, then, if the retraction or redemption is
treated as a taxable transaction, it will be treated as a taxable exchange of
the Exchangeable Shares (treated for U.S. federal income tax purposes as
described above) if the retraction or redemption (i) results in a "complete
termination" of the U.S. Holder's stock interest in Cableshare under section
302(b)(3) of the Code, (ii) is "substantially disproportionate" with respect to
the U.S. Holder under section 302(b)(2) of the Code, or (iii) is "not
essentially equivalent to a dividend" with respect to the U.S. Holder under
section 302(b)(1) of the Code. In determining whether any of these tests has
been met, shares of stock considered to be owned by the U.S. Holder by reason of
certain constructive ownership rules set forth in section 318 of the Code, as
well as shares actually owned, generally must be taken into account. If a
retraction or a redemption is treated as a taxable transaction but does not meet
any of the tests described above, the cash and the fair market value of the
Source Common Shares received by the U.S. Holder would generally be taxed as a
dividend paid on the Exchangeable Share to the extent of Cableshare's (or,
possibly, Source's) earnings and profits. See "Distributions on the Exchangeable
Shares", below.
 
     A significant risk exists, however, that the exchange, retraction, or
redemption of Exchangeable Shares for Source Common Shares would be held to
constitute a nonrecognition event. In such case:
 
    (1) a U.S. Holder that exchanges its Exchangeable Shares for Source Common
        Shares generally would not recognize gain or loss on the receipt of the
        Source Common Shares;
 
                                       52
<PAGE>   54
 
    (2) a U.S. Holder would, however, be required to recognize gain to the
        extent the receipt of cash in lieu of fractional shares (if any) exceeds
        the tax basis allocable thereto and income (which may be ordinary
        income) to the extent of cash equal to the full amount of declared but
        unpaid dividends on the Exchangeable Shares (if any);
 
    (3) the tax basis of the Source Common Shares would be equal to the tax
        basis of the Exchangeable Shares exchanged therefor (reduced by the tax
        basis allocated to fractional share interests); and
 
    (4) the holding period of the Source Common Shares would include the
        holding period of Exchangeable Shares exchanged therefor.
 
     Irrespective of how the retraction or redemption is treated for U.S.
federal income tax purposes, it may be subject to Canadian withholding tax. See
"Canadian Federal Income Tax Considerations for Cableshare Shareholders --
Taxation of Cableshare Shareholders Not Resident in Canada". Subject to certain
limitations of U.S. federal income tax law, a U.S. Holder should generally be
entitled to either a credit against such holder's U.S. federal income tax
liability or a deduction in computing U.S. taxable income for such Canadian
income taxes that are withheld with respect to the retraction or redemption of
the Exchangeable Shares.
 
     Distributions on the Exchangeable Shares.  Cableshare understands that
currently Source does not anticipate paying dividends prior to the Automatic
Redemption Date and is currently restricted from paying dividends under the
terms of the Senior Note Agreement, and thus, no dividends would be payable with
respect to the Exchangeable Shares. If any such dividends were paid, however, a
U.S. Holder of Exchangeable Shares generally would be required to include such
dividends in gross income as ordinary income to the extent they were paid out of
the earnings and profits of Cableshare, as determined under U.S. federal income
tax principles. Although the matter is not free from doubt, there is a
Reasonable Basis to conclude that such dividends will be treated as non-U.S.
source passive income for foreign tax credit limitation purposes and will not be
eligible for the dividends received deduction allowed to corporation
shareholders under the Code.
 
     It is possible that Source's, rather than Cableshare's, earnings and
profits would be taken into account in the foregoing calculation. In that event,
such dividends generally would be treated as U.S. source income.
 
     Irrespective of any position that the IRS may take, under the current
Canada-United States Income Tax Convention, such distributions generally will be
subject to Canadian withholding tax at a maximum rate of 15% of the gross amount
of the distribution. See "Canadian Federal Income Tax Considerations for
Cableshare Shareholders -- Taxation of Cableshare Shareholders Not Resident in
Canada", below. Subject to certain limitations of U.S. federal income tax law, a
U.S. Holder should generally be entitled to either a credit against such
holder's U.S. federal income tax liability or a deduction in computing U.S.
taxable income for Canadian income taxes withheld from distributions with
respect to the Exchangeable Shares.
 
     Passive Foreign Investment Company Considerations.  For U.S. federal income
tax purposes, Cableshare generally will be classified as a passive foreign
investment company (a "PFIC") for any taxable year during which either (i) 75%
or more of its gross income is passive income (as defined for U.S. federal
income tax purposes) or (ii) on average for such taxable year, 50% or more of
its assets (by value) produce or are held for the production of passive income.
For purposes of applying the foregoing tests, all or some of the assets and
gross income of Cableshare's subsidiaries, if any, will be attributed to
Cableshare.
 
     While there can be no assurance with respect to the classification of
Cableshare as a PFIC, Cableshare believes that it did not constitute a PFIC
during its taxable years ending prior to consummation of the Arrangement.
Currently, Cableshare and Source intend to endeavor to cause Cableshare to avoid
PFIC status in the future, although there can be no assurance that they will be
able to do so or that their intent will not change. Moreover, in connection with
the transactions contemplated herein, U.S. counsel will not be rendering an
opinion with regard to Cableshare's status as a PFIC.
 
     After the Arrangement, Cableshare intends to monitor its status regularly,
and following the end of each taxable year Cableshare will promptly notify U.S.
Holders of Exchangeable Shares if it believes that Cableshare was a PFIC for
that taxable year.
 
                                       53
<PAGE>   55
 
     Although the matter is not free from doubt, if Cableshare is a PFIC
following the Arrangement during a U.S. Holder's holding period for such
holder's Exchangeable Shares, and the U.S. Holder does not make a qualified
electing fund election (a "QEF Election"), then (i) the U.S. Holder would be
required to allocate income recognized upon receiving certain excess dividends
with respect to, and gain recognized upon the disposition of, such U.S. Holder's
Exchangeable Shares (including upon the exchange of Exchangeable Shares for
Source Common Shares) ratably over the U.S. Holder's holding period for such
Exchangeable Shares, (ii) the amount allocated to each year other than (x) the
year of the excess dividend payment or disposition of the Exchangeable Shares or
(y) any year prior to the beginning of the first taxable year of Cableshare for
which it was a PFIC, would be subject to tax at the highest rate applicable to
individuals or corporations, as the case may be, for the taxable year to which
such income is allocated, and an interest charge would be imposed upon the
resulting tax attributable to each such year (which charge would accrue from the
due date of the return for the taxable year to which such tax was allocated),
and (iii) gain recognized upon the disposition of the Exchangeable Shares would
be taxable as ordinary income.
 
     If a U.S. Holder makes a QEF Election, then the U.S. Holder generally will
be currently taxable on such holder's pro rata share of Cableshare's ordinary
earnings and net capital gains (at ordinary income and capital gains rates,
respectively) for each taxable year of Cableshare in which Cableshare is
classified as a PFIC, even if no dividend distributions are received by such
U.S. Holder unless such U.S. Holder makes an election to defer such taxes. If
Cableshare believes that it was a PFIC for a taxable year, it will provide U.S.
Holders of Exchangeable Shares with information sufficient to allow such holders
to make a QEF Election and report and pay any current or deferred taxes due with
respect to their pro rata shares of Cableshare's ordinary earnings and profits
and net capital gains for such taxable year. U.S. Holders should consult their
tax advisors concerning the merits and mechanics of making a QEF Election and
other relevant tax considerations if Cableshare is a PFIC for any taxable year.
 
     The foregoing summary of the possible application of the PFIC rules to
Cableshare and the U.S. Holders of Exchangeable Shares is only a summary of
certain material aspects of those rules. Because the U.S. federal tax
consequences to a U.S. Holder of Exchangeable Shares under the PFIC provisions
are significant, U.S. Holders of Exchangeable Shares are urged to discuss those
consequences with their tax advisors.
 
     Shareholders Not Resident in or Citizens of the United States.  The
following summary is applicable to a non-U.S. Holder that holds or will hold,
actually or constructively, less than 5% of the stock (by vote or value) of
Cableshare or Source.
 
     A non-U.S. Holder generally will not be subject to U.S. federal income tax
on gain (if any) recognized on the sale or exchange of the Exchangeable Shares,
or on the receipt or sale of the Source Common Shares unless such gain is
effectively connected with the conduct by the non-U.S. Holder of a U.S. trade or
business or, if a tax treaty applies, if the gain is attributable to a U.S.
permanent establishment of the non-U.S. Holder or, in the case of a gain
recognized by an individual, such person is either (a) considered to be a U.S.
resident during the taxable year for U.S. federal income tax purposes or
pursuant to an applicable tax treaty, or (b) unless an applicable tax treaty
provides otherwise, present in the United States for 183 days or more (the
"presence test").
 
     Gain or loss on the sale, transfer or other disposition by a non-U.S.
Holder of a "United States real property interest" (as defined for U.S. federal
income tax purposes) generally is treated as effectively connected with a U.S.
trade or business, is subject to U.S. federal income tax and may be subject to
withholding. Cableshare and Source each believes that it is not a "United States
real property holding corporation" (as defined for U.S. federal income tax
purposes) and that the Exchangeable Shares did not represent United States real
property interests as of the date of the exchange pursuant to the Arrangement.
Cableshare and Source intend to endeavor to prevent the Exchangeable Shares from
becoming United States real property interests, although there can be no
assurance that they will be able to do so or that their intent will not change.
 
     If gain recognized by a non-U.S. Holder on the sale or exchange of
Exchangeable Shares, or on the receipt or sale of the Source Common Shares, is
effectively connected with a U.S. trade or business or is attributable to a
permanent establishment in the United States, then the non-U.S. Holder would be
subject to
 
                                       54
<PAGE>   56
 
U.S. federal income tax at the graduated rates that are applicable to U.S.
citizens, resident aliens or domestic corporations, as applicable, and may be
subject to withholding in certain circumstances. If gain recognized by a
non-U.S. Holder on the sale or exchange of Exchangeable Shares, or on the
receipt or sale of the Source Common Shares, is subject to U.S. tax on the basis
of the presence test, then the non-U.S. Holder generally would be subject to
U.S. federal income tax on the capital gain at the rate of 30% or lower
applicable income tax treaty rate, and may be subject to withholding in certain
circumstances. Non-U.S. Holders may be entitled to a limited foreign tax credit
on non-U.S. source income that is effectively connected with a U.S. trade or
business. In addition, if the non-U.S. Holder is a corporation, the U.S. branch
profits tax also may apply.
 
     Source does not anticipate paying dividends prior to the Automatic
Redemption Date and is currently restricted from paying dividends under the
terms of the Senior Note Agreement, and thus, no dividends would be payable with
respect to the Exchangeable Shares. Although the matter is not free from doubt,
there is a Reasonable Basis to conclude that any dividends received by a
non-U.S. Holder with respect to the Exchangeable Shares would not be subject to
U.S. withholding tax, and Cableshare understands that it is not anticipated that
Cableshare or Source would withhold any amounts in respect of such tax from such
dividends. The possibility exists, however, that the IRS may assert that U.S.
withholding tax is payable with respect to dividends paid on the Exchangeable
Shares to non-U.S. Holders. In such case, dividends with respect to the
Exchangeable Shares could be subject to U.S. withholding tax at a rate of 30%,
which rate may be reduced by an applicable income tax treaty in effect between
the United States and the non-U.S. Holder's country of residence (15% on
dividends paid to residents of Canada). Dividends paid to a non-U.S. Holder that
are effectively connected with the conduct of a trade or business in the United
States are taxed at the graduated rates that are applicable to U.S. citizens,
resident aliens, and domestic corporations, and are not subject to U.S.
withholding tax if the non-U.S. Holder gives an appropriate statement to the
withholding agent in advance of the dividend payment. Under certain
circumstances, such effectively connected dividends also may be subject to an
additional branch profits tax if the non-U.S. Holder is a corporation.
 
     Generally, dividends received by a non-U.S. Holder with respect to the
Source Common Shares will be subject to U.S. withholding tax at a rate of 30%,
which rate may be subject to reduction by an applicable income tax treaty (15%
on dividends paid to residents of Canada). If the dividends are effectively
connected with the conduct of a U.S. trade or business, they would be taxed at
the graduated rates that are applicable to U.S. citizens, resident aliens, and
domestic corporations and would not be subject to U.S. withholding tax if the
non-U.S. Holder gives an appropriate statement to the withholding agent in
advance of the dividend payment. A non-U.S. Holder that is a corporation may be
subject to an additional branch profits tax on effectively connected dividends.
 
     The Source Common Shares (and, possibly, the Exchangeable Shares or a
portion thereof) will be deemed to be U.S. situs assets for purposes of the U.S.
federal estate tax with the result that any such shares held by an individual
non-U.S. Holder at the time of his or her death will be subject to the U.S.
federal estate tax, except as may otherwise be provided by an applicable tax
treaty with the United States.
 
INFORMATION REPORTING AND BACKUP WITHHOLDING
 
     Under the U.S. backup withholding provisions of the Code and applicable
U.S. Treasury regulations, a Holder may be subject to backup withholding at the
rate of 31% with respect to dividends on Exchangeable Shares or Source Common
Shares, or the proceeds of a sale, exchange, retraction or redemption of
Exchangeable Shares or Source Common Shares, unless such holder (i) is a
corporation or comes within certain other exempt categories and, when required,
demonstrates this fact, or (ii) provides a taxpayer identification number,
certifies as to no loss of exemption from backup withholding and otherwise
complies with applicable requirements of the backup withholding rules.
Generally, dividends paid to non-U.S. Holders that are subject to the 30% (or
reduced treaty) rate of U.S. withholding tax will be exempt from U.S. backup
withholding. The amount of any U.S. backup withholding from a payment to a
Holder is not an additional tax and may be allowed as a credit against the
Holder's U.S. federal income tax liability and may entitle such Holder to a
refund, provided that the required information is furnished to the IRS.
 
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<PAGE>   57
 
SUBSTANTIAL UNDERSTATEMENT PENALTY
 
     Section 6662 of the Code imposes a penalty in certain circumstances for a
substantial understatement of taxes if a taxpayer's tax liability is understated
on a U.S. tax return by more than the greater of (i) 10% of the taxes required
to be shown on the return or (ii) $5,000 ($10,000 for most corporations). The
penalty (which is not deductible) is 20% of the understatement.
 
     An item of understatement will not give rise to the penalty if: (i) there
is or was "substantial authority" for the taxpayer's treatment of the item or
(ii) all the facts relevant to the tax treatment of the item are adequately
disclosed on the return or on a statement attached to the return and there is a
reasonable basis for the tax treatment of such item.
 
     As to discussions of Reasonable Basis, above, U.S. counsel expresses no
opinion as to whether there is "substantial authority" for the position or as to
possible application of the substantial understatement penalty as a result of
taking such a position. As a result, each Holder should consult with its tax
advisor to determine whether substantial authority exists for the position or
whether the Holder should adequately disclose the position on its return to
avoid application of the substantial understatement penalty.
 
CANADIAN FEDERAL INCOME TAX CONSIDERATIONS FOR EXCHANGEABLE SHAREHOLDERS
 
     Each Cableshare Shareholder should obtain advice from his or her own
adviser as to both the federal and provincial income tax consequences of the
transactions described herein.
 
     NO APPLICATION HAS BEEN MADE TO REVENUE CANADA, CUSTOMS, EXCISE AND
TAXATION FOR AN ADVANCE INCOME TAX RULING CONCERNING ANY ASPECT OF THE
TRANSACTIONS DESCRIBED HEREIN. THEREFORE, NO ASSURANCE CAN BE GIVEN THAT THE
INCOME TAX CONSIDERATIONS MENTIONED BELOW WILL NOT DIFFER FROM THE
INTERPRETATION OF REVENUE CANADA, CUSTOMS, EXCISE AND TAXATION.
 
     The following summary of income tax consequences is limited to those under
the Canadian Tax Act and the regulations thereunder in force as of the date
hereof. It also takes into account proposed amendments and proposals tabled or
released by the federal Minister of Finance as of the date hereof, as well as
the current administrative practices of Revenue Canada, Customs, Excise and
Taxation ("Revenue Canada"). It has been assumed that such proposed changes will
become law. No assurance to that effect, however, can be given. Similarly, no
assurance can be given that legislative changes in the future may not affect the
income tax considerations discussed below.
 
     Heenan Blaikie, legal counsel for the Special Committee, is of the opinion
that the following is a fair and adequate summary of the principal Canadian
federal income tax consequences as at the date hereof generally applicable to
persons (other than affiliates of Source), who for the purposes of the Income
Tax Act (Canada) (the "Canadian Tax Act") will hold their Cableshare
Exchangeable Shares or Source Common Shares as capital property and will deal at
arm's length with both Cableshare and Source. Shares of Cableshare or Source
will generally be considered to constitute capital property to the holder
thereof unless either such shares are held in the course of carrying on a
business of buying and selling shares or such holder has acquired such shares in
a transaction or transactions considered to be an adventure in the nature of
trade. A person whose shares of Cableshare might not otherwise qualify as
capital property may qualify to make an irrevocable election in accordance with
subsection 39(4) of the Canadian Tax Act to have every "Canadian security" owned
by such holder in the taxation year of the election and in all subsequent
taxation years deemed to be a capital property. This election is not available
in respect of Source Common Shares.
 
     This summary does not apply to a holder with respect to whom Source is a
foreign affiliate within the meaning of the Canadian Tax Act.
 
     THE FOLLOWING DISCUSSION OF THE CANADIAN FEDERAL INCOME TAX CONSEQUENCES IS
OF A GENERAL NATURE ONLY AND IS NOT INTENDED TO CONSTITUTE A COMPLETE ANALYSIS
AND, THEREFORE, SHOULD NOT BE INTERPRETED AS LEGAL OR TAX ADVICE TO ANY
PARTICULAR PERSON. EXCEPT FOR THE FOREGOING, THIS SUMMARY DOES NOT TAKE INTO
ACCOUNT OR
 
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<PAGE>   58
 
ANTICIPATE ANY CHANGES IN LAW, WHETHER BY LEGISLATIVE, ADMINISTRATIVE OR
JUDICIAL DECISION OR ACTION, NOR DOES IT TAKE INTO ACCOUNT PROVINCIAL,
TERRITORIAL OR FOREIGN INCOME TAX LEGISLATION OR CONSIDERATIONS, WHICH MAY
DIFFER FROM THE CANADIAN FEDERAL INCOME TAX CONSIDERATIONS DESCRIBED HEREIN.
 
     The "mark-to-market rules" contained in the Canadian Tax Act generally
preclude certain "financial institutions", as defined in such Act, from
obtaining capital gains treatment in respect of gains realized on a disposition
of shares of corporations (other than shares of a corporation in which the
institution has a "significant interest") and such institutions are precluded
from making the subsection 39(4) election referred to above. This summary does
not otherwise take into account the mark-to-market rules, and taxpayers that are
"financial institutions" for the purposes of such rules should consult their tax
advisers.
 
     For purposes of the Canadian Tax Act, all amounts relating to the
acquisition, holding or disposition of Source Common Shares, including
dividends, adjusted cost base and proceeds of disposition must be converted into
Canadian dollars based on the prevailing United States dollar exchange rate at
the time such amounts arise.
 
TAX CONSEQUENCES FOR CABLESHARE SHAREHOLDERS RESIDENT IN CANADA WHO HOLD
EXCHANGEABLE SHARES
 
     The following portion of the summary is applicable to holders of
Exchangeable Shares who, for purposes of the Canadian Tax Act, are resident or
deemed to be resident in Canada.
 
     This summary does not consider the tax implications of disposing of
Cableshare shares in order to acquire Exchangeable Shares.
 
1.   Dividends
 
(a)  Dividends on Exchangeable Shares
 
     In the case of a shareholder who is an individual, dividends received or
deemed to be received on the Exchangeable Shares will be included in computing
the shareholder's income, and will be subject to the gross-up and dividend tax
credit rules normally applicable to taxable dividends received from taxable
Canadian corporations.
 
     The Exchangeable Shares will be "taxable preferred shares" and "short-term
preferred shares" for purposes of the Canadian Tax Act. Accordingly, Cableshare
will be subject to a 66 2/3% tax under Part VI.1 of the Canadian Tax Act on
dividends paid or deemed to be paid on the Exchangeable Shares. Dividends
received or deemed to be received on the Exchangeable Shares will not be subject
to the 10% tax under part IV.1 of the Canadian Tax Act applicable to certain
corporations.
 
     In the case of a shareholder that is a corporation, other than a "specified
financial institution" as defined in the Canadian Tax Act, dividends received or
deemed to be received on the Exchangeable Shares will normally be deductible in
computing its taxable income.
 
     Dividends that are received by a specified financial institution in respect
of Exchangeable Shares will only be deductible in computing the holder's taxable
income if either:
 
     (i)   the specified financial institution did not acquire the Exchangeable
           Shares in the ordinary course of the business carried on by such
           institution; or
 
     (ii)  at the time of the receipt of the dividend by the specified financial
           institution, the Exchangeable Shares are listed on a prescribed stock
           exchange in Canada (which will not be the case immediately after the
           effective date of the Arrangement) and the specified financial
           institution, either alone or together with persons with whom it 
           does not deal at arm's length, does not receive (or is not deemed 
           to receive) dividends in respect of more than 10% of the issued and
           outstanding Exchangeable Shares.
 
     A shareholder that is a "private corporation" (as defined in the Canadian
Tax Act) or any other corporation resident in Canada and controlled or deemed to
be controlled by or for the benefit of an individual or a related group of
individuals may be liable under Part IV of the Canadian Tax Act to pay a
refundable tax
 
                                       57
<PAGE>   59
 
of 33 1/3% on dividends received or deemed to be received on the Exchangeable
Shares to the extent that such dividends are deductible in computing the
shareholder's taxable income.
 
(b)  Dividends on Source Common Shares
 
     Dividends on Source Common Shares will be included in the recipient's
income for the purposes of the Canadian Tax Act. Such dividends received by an
individual shareholder will not be subject to the gross-up and dividend tax
credit rules in the Canadian Tax Act. A corporation which is a shareholder will
include such dividends in computing its income and generally will not be
entitled to deduct the amount of such dividends in computing its taxable income.
Any United States non-resident withholding tax exigible on such dividends will
be potentially eligible for foreign tax credit or deduction treatment in
accordance with the detailed rules contained in the Canadian Tax Act.
 
2.   Redemption or Exchange of Exchangeable Shares
 
(a)  Redemption by Cableshare
 
     On the redemption (including a retraction) of an Exchangeable Share by
Cableshare, in circumstances where Source does not exercise its Call Rights, the
holder of an Exchangeable Share will be deemed to have received a dividend equal
to the amount, if any, by which the redemption proceeds (being the fair market
value at the time of the redemption of a Source Common Share received by the
shareholder from Cableshare on the redemption plus the amount, if any, of all
accrued but unpaid dividends on the Exchangeable Share) exceeds the paid-up
capital at that time of the Exchangeable Share so redeemed. The amount of any
such deemed dividend will be subject to the tax treatment accorded to dividends
described above. On the redemption, the holder of an Exchangeable Share will
also be considered to have disposed of the Exchangeable Share, but the amount of
such deemed dividend will be excluded in computing the shareholder's proceeds of
disposition for purposes of computing any capital gain or capital loss arising
on the disposition of the Exchangeable Share. (The treatment of capital gains
and capital losses is described below.) In the case of a shareholder that is a
corporation, in some circumstances the amount of any such deemed dividend may be
treated as proceeds of disposition and not as a dividend.
 
(b)  Exchange with Source
 
     On the exchange of an Exchangeable Share by the holder thereof with Source
for a Source Common Share, the holder will in general realize a capital gain (or
a capital loss) equal to the amount by which the proceeds of disposition of the
Exchangeable Share, net of any reasonable costs of disposition, exceed (or are
less than) the adjusted cost base to the holder of the Exchangeable Share. For
these purposes, the proceeds of disposition will be the fair market value of a
share of Source Common Stock at the time of exchange plus the amount of all
accrued but unpaid dividends on the Exchangeable Share received by the holder as
part of the exchange consideration.
 
(c)  General Considerations
 
     Three-quarters of any such capital gain (the "taxable capital gain") will
be included in the shareholder's income for the year of disposition.
Three-quarters of any capital loss so realized (the "allowable capital loss")
may be deducted by the holder against taxable capital gains for the year of
disposition. Any excess of allowable capital losses over taxable capital gains
of the shareholder for the year of disposition may be carried back up to three
taxable years or forward indefinitely and deducted against net taxable capital
gains in those other years.
 
     A shareholder disposing of Exchangeable Shares that is throughout the
relevant taxation year a "Canadian-controlled private corporation" (as defined
in the Canadian Tax Act) may be liable to pay an additional refundable tax of
6 2/3% on its "aggregate investment income" for the year, which is defined to
include an amount in respect of taxable capital gains (but not dividends or
deemed dividends deductible in computing taxable income).
 
                                       58
<PAGE>   60
 
     If the holder of an Exchangeable Share is a corporation, the amount of any
capital loss arising from a disposition or deemed disposition of an Exchangeable
Share may be reduced by the amount of dividends received or deemed to have been
received by it on such share or on the Cableshare Common Shares submitted
pursuant to a valid election for exchange for Exchangeable Shares and previously
owned by such holder, to the extent and under circumstances prescribed by the
Canadian Tax Act.
 
     The cost base of a Source Common Share received on the retraction,
redemption or exchange of an Exchangeable Share will be equal to the fair market
value of the Source Common Share at the time of such event.
 
     The existence of the Retraction Call Right means that a holder exercising
the right of retraction in respect of an Exchangeable Share cannot control
whether such holder will receive a Source Common Share by way of redemption of
the Exchangeable Share by Cableshare or by way of purchase of the Exchangeable
Share by Source. As described above, the Canadian federal income tax
consequences of a redemption by Cableshare differ from those of a purchase by
Source. However a holder who exercises the right of retraction will be notified
if the Retraction Call Right will not be exercised by Source, and if such holder
does not wish to proceed, such holder may cancel the notice of retraction and
retain such holder's Exchangeable Share.
 
3.   Disposition of Source Common Shares
 
     A disposition or deemed disposition of a Source Common Share by a holder
will generally result in a capital gain (or capital loss) equal to the amount by
which the proceeds of disposition, net of any reasonable costs of disposition,
exceed (or are exceeded by) the adjusted cost base to the holder of the Source
Common Share.
 
TAXATION OF CABLESHARE SHAREHOLDERS NOT RESIDENT IN CANADA
 
     The following portion of the summary is applicable to Cableshare
Shareholders who, for purposes of the Canadian Tax Act, have not been and will
not be resident or deemed to be resident in Canada at any time while they have
held Exchangeable Shares and in the case of a non-resident of Canada who carried
on an insurance business in Canada and elsewhere, whose shares are not
effectively connected with its Canadian insurance business.
 
1.   Disposition of Exchangeable Shares
 
     Shareholders who are non-residents of Canada, and in particular U.S.
shareholders, are urged to consult their own tax advisers concerning the
implications of electing to receive Exchangeable Shares.
 
     A non-resident of Canada is potentially subject to Canadian income tax in
respect of gains realized on the disposition of property that is considered to
be taxable Canadian property for the purposes of the Canadian Tax Act.
 
     Source Common Shares will not be taxable Canadian property to a nonresident
holder while the Exchangeable Shares will be taxable Canadian property so long
as such shares are not listed on a prescribed stock exchange. Gains realized in
respect of a subsequent disposition of Exchangeable Shares that are taxable
Canadian property are potentially subject to tax under the Canadian Tax Act,
subject to any relief that may be available to the holder pursuant to any
applicable tax treaty between Canada and the jurisdiction in which the holder
resides or is domiciled. Exchangeable Shares that are redeemed, retracted or
purchased for cancellation by Cableshare will generally give rise to a deemed
dividend to the extent that the proceeds of disposition exceed the paid-up
capital of such shares for the purposes of the Canadian Tax Act. The amount of
such deemed dividend is subject to withholding tax under the Canadian Tax Act at
a rate of 25%, although such rate may be reduced under the provisions of an
applicable tax treaty.
 
     Shareholders who are not residents of Canada will generally be required to
comply with the procedure set out in section 116 of the Canadian Tax Act if they
dispose of Exchangeable Shares at a time when such shares are not listed on a
prescribed stock exchange. When section 116 applies, a holder disposing of
Exchangeable Shares is generally required to report certain particulars relating
to the transaction to Revenue Canada no later
 
                                       59
<PAGE>   61
 
than ten days after the disposition is made. In certain circumstances, the
purchaser of the Exchangeable Shares (including Cableshare or Source, as the
case may be) is required to withhold up to one-third of the total purchase price
and remit such amount to Revenue Canada.
 
     The remainder of the discussion concerning non-residents of Canada assumes
that such persons have not received Exchangeable Shares and have received Source
Common Shares directly from Source on the effective date of the Arrangement.
Non-residents of Canada are urged to consult their own tax advisers concerning
the tax implications to them of participating in the Arrangement.
 
2.   Dividends on Source Common Shares
 
     Dividends paid on Source Common Shares to non-residents of Canada are not
subject to tax under the Canadian Tax Act.
 
ELIGIBILITY FOR INVESTMENT
 
1.   Foreign Property
 
     At the time when they are issued, the Exchangeable Shares will not be
listed on a prescribed stock exchange in Canada and thus they will be foreign
property for trusts governed by registered pension plans, registered retirement
savings plans, registered retirement income funds, deferred profit sharing plans
and certain other tax-exempt entities. Tax-exempt plans that hold foreign
property in excess of certain percentage limits are subject to a penalty tax.
The penalty tax is 1% per month of the cost amount of foreign property in excess
of a maximum percentage limit (generally 20% of the total cost of all
investments). Since the Exchangeable Shares will be acquired in exchange for
shares that are not foreign property, the Canadian Tax Act provides a 24 month
grace period before an Exchangeable Share will be treated as foreign property.
Accordingly, tax exempt entities can hold Exchangeable Shares for up to 24
months after the Effective Date without being liable to pay additional foreign
property tax. If the Exchangeable Shares should be listed on a prescribed
Canadian stock exchange at some future date, they will cease to be foreign
property at the time they are so listed.
 
     The Voting Rights and Trustee Exchange Rights acquired by a holder in
connection with the exchange will be foreign property for tax-exempt plans. The
cost amount of such rights will have to be included in calculating the cost
amount of all foreign property held by the particular tax exempt entity.
Cableshare has advised that the value of such rights is nominal. Such
determinations of value are not binding on Revenue Canada and counsel can
express no opinion on this issue as it is a question of fact. Assuming that
Cableshare's determination of value is correct, the acquisition of the Voting
Rights and Trustee Exchange Rights in connection with the Exchange will not
result in any material foreign property tax liability for tax exempt entities.
 
     After the 24 month grace period has expired, the cost amount of
Exchangeable Shares will have to be included in the cost amount of foreign
property for the purposes of calculating the foreign property tax payable by the
particular entity. The cost amount of such shares would appear to be equal to
the adjusted cost base of the Cableshare shares that were exchanged for the
Exchangeable Shares as at the time of the exchange.
 
     Source Common Shares will be foreign property for trusts governed by
registered pension plans, registered retirement savings plans, registered
retirement income funds, deferred profit sharing plans and certain other
tax-exempt entities. Source Common Shares will qualify for the 24 month grace
period (as described above) if they are acquired on the effective date of the
Arrangement as a result of a disposition by a Cableshare Shareholder to Source
of Cableshare Common Shares pursuant to the Arrangement. Source Common Shares
that are acquired in any other circumstances (such as an acquisition resulting
from the retraction of an Exchangeable Share or the exercise by Source of a Call
Right) will generally not qualify for the 24 month grace period.
 
                                       60
<PAGE>   62
 
2.   Qualified Investments
 
     Registered retirement savings plans ("RRSP's") Registered retirement income
funds ("RRIF's") and deferred profit sharing plans ("DPSP's") are subject to a
penalty tax in respect of investments that are not qualified investments for the
purposes of the Canadian Tax Act.
 
     Although the Exchangeable Shares will not be listed on a prescribed stock
exchange, they will be a qualified investment so long as Cableshare maintains
its status as a public corporation for the purposes of the Canadian Tax Act.
Cableshare will be a public corporation immediately after the Effective Date and
Source has agreed that Source will use its best efforts to ensure that
Cableshare retains its status as a public corporation for the purposes of the
Canadian Tax Act. Source has also agreed that Source will cause Cableshare to
list the Exchangeable Shares on a prescribed Canadian stock exchange in certain
limited circumstances. If the Exchangeable Shares are listed on a prescribed
stock exchange, then they will be a qualified investment while they are so
listed. However, there can be no assurance that the Exchangeable Shares will be
listed on a prescribed stock exchange or that Cableshare will maintain its
status as a public corporation for the purposes of the Canadian Tax Act. If
RRSP's, RRIF's and DPSP's hold Exchangeable Shares at a time when Cableshare is
not a public corporation and such shares are not listed on a prescribed stock
exchange, then such shares will not be a qualified investment for such plans at
that time. There is no 24 month grace period for investments that lose their
status as qualified investments after they are acquired by an RRSP, RRIF or
DPSP. There is also no "basket percentage" for non-qualified investments held by
an RRSP, RRIF or DPSP. If the Exchangeable Shares do become a non-qualified
investment, then a holder that is an RRSP, RRIF or DPSP must pay a penalty tax
equal to 1% per month of the cost amount of such Exchangeable Shares. This
penalty tax is calculated at the end of each month and thus a plan that disposes
of a non-qualifying investment before the end of any particular month will not
be subject to tax in respect of that investment for the relevant month. The cost
amount of the Exchangeable Shares for the purposes of the penalty tax would be
the fair market value on the Effective Date of the Cableshare shares that were
converted into such Exchangeable Shares.
 
     If the Exchangeable Shares are subject to the tax on the basis that they
are not qualified investments, they will not be subject to the foreign property
tax (as described above under the subheading "Foreign Property") even if they
are foreign property at the relevant time.
 
     The Source Common Shares will be a qualified investment for RRSP's RRIF's
and DPSP's so long as such shares are listed on a prescribed stock exchange. The
Nasdaq Stock Market is a prescribed stock exchange for this purpose.
 
     The Voting Rights and Trustee Exchange Rights acquired by a holder in
connection with the Exchange will not be a qualified investment for RRSP's,
RRIF's and DPSP's. The cost amount of such rights will have to be included in
calculating the cost amount of all non-qualified property held by the particular
tax exempt entity. Cableshare has advised that the value of such rights is
nominal. Such determinations of value are not binding on Revenue Canada and
counsel can express no opinion on this issue as it is a question of fact.
Assuming that Cableshare's determination of value is correct, the acquisition of
the voting rights and exchange rights in connection with the Exchange will not
result in any material tax liability for tax exempt entities under the qualified
investment rules.
 
                                       61
<PAGE>   63
 
                              PLAN OF DISTRIBUTION
 
EXCHANGEABLE SHARES
 
     Pursuant to the terms of a plan of arrangement (the "Plan of Arrangement")
under Section 182 of the OBCA, Cableshare has undergone a reorganization of
capital whereby, among other things, it issued Exchangeable Shares in exchange
for each existing Cableshare Common Shares (other than Cableshare Common Shares
held by Source and its subsidiaries and by holders who elected to receive Source
Common Shares in connection with the Arrangement or who properly exercised their
rights of dissent and are ultimately entitled to be paid fair value for their
shares) at the effective time of the Arrangement.
 
     Source Common Shares may be issued to holders of Exchangeable Shares as
follows: (i) holders of Exchangeable Shares may require at any time that such
shares be exchanged for an equivalent number of Source Common Shares (see
"-- Procedures for Issuance of Source Common Shares -- Election by Holders to
Exchange Exchangeable Shares"); (ii) Source may redeem such Exchangeable Shares
by exchanging therefor an equal number of Source Common Shares (see
"-- Procedures for Issuance of Source Common Shares -- Redemption of
Exchangeable Shares"); and (iii) upon liquidation of Source or Cableshare,
holders of Exchangeable Shares may be required to, or may elect to, exchange
such Exchangeable Shares for Source Common Shares (see "-- Procedures for
Issuance of Source Common Shares -- Liquidation of Cableshare" and
"-- Liquidation of Cableshare"). No broker, dealer or underwriter has been
engaged in connection with the offering of the Source Common Shares covered
hereby.
 
     The following is a description of certain rights, privileges, restrictions
and conditions attaching to the Exchangeable Shares, which are attached to the
Plan of Arrangement (the "Exchangeable Share Provisions"), and certain
provisions of the Support Agreement entered into between Source and Cableshare
(the "Support Agreement") and the Voting and Exchange Trust Agreement entered
into among Source, Cableshare and [TRUSTEE], as trustee (the "Voting and
Exchange Trust Agreement"). The Plan of Arrangement, the Voting and Exchange
Trust Agreement and Support Agreement are included as exhibits to the
Registration Statement to which this Prospectus relates, and the following
description is qualified in its entirety by reference to the Plan of
Arrangement, the Voting and Exchange Trust Agreement and Support Agreement.
 
PROCEDURES FOR ISSUANCE OF SOURCE COMMON SHARES
 
     ELECTION BY HOLDERS TO EXCHANGE EXCHANGEABLE SHARES. Holders of the
Exchangeable Shares are entitled at any time to retract (i.e., require
Cableshare to redeem) any or all such Exchangeable Shares owned by them and to
receive an equivalent number of Source Common Shares, plus an additional amount
equivalent to all declared but unpaid dividends on such Exchangeable Shares,
subject to the rights of Source described below. Holders of Exchangeable Shares
may effect such retraction by presenting a certificate or certificates to
Cableshare and Source or Source's transfer agent representing the number of
Exchangeable Shares the holder desires to retract, together with a duly executed
statement (the "Retraction Request") specifying the number of Exchangeable
Shares the holder wishes to retract and such other documents as may be required
to effect the retraction of the Exchangeable Shares. The retraction will become
effective on the date specified by the holder, which date must be not less than
10 business days nor more than 15 business days after the request is received by
Cableshare (the "Retraction Date").
 
     Upon receipt of a Retraction Request, Cableshare is required to immediately
notify Source of such Retraction Request. Source will thereafter have five
business days in which to exercise its overriding right (the "Retraction Call
Right") to purchase all of the Exchangeable Shares submitted by the holder
thereof by the delivery of an equivalent number of Source Common Shares plus an
additional amount equivalent to the full amount of all declared but unpaid
dividends on the Exchangeable Shares (the "Retraction Price") to the transfer
agent for delivery to such holder on the Retraction Date. If Source so advises
Cableshare within such five business day period, Cableshare will notify the
holder as soon as possible thereafter that the Retraction Call Right will be
exercised. A holder may revoke his or her Retraction Request at any time prior
to the close of business on the business day preceding the Retraction Date, in
which case the holder's Exchangeable
 
                                       62
<PAGE>   64
 
Shares will not be purchased by Source nor redeemed by Cableshare. In the event
Source determines not to exercise its Retraction Call Right and provided that
the Retraction Request is not revoked by the holder, Cableshare is obligated to
deliver to the holder the number of Source Common Shares equal to the number of
Exchangeable Shares submitted by the holder for retraction, plus an additional
amount equivalent to the full amount of all declared but unpaid dividends on
such Exchangeable Shares. If only a part of the Exchangeable Shares represented
by any certificate is redeemed, a new certificate for the balance of such
Exchangeable Shares will be issued to the holder at Cableshare's expense. If, as
a result of solvency provisions of applicable law, Cableshare is not permitted
to redeem all Exchangeable Shares tendered by a retracting holder, Cableshare
will redeem only those Exchangeable Shares tendered by the holder (rounded down
to a whole number of shares) as would not be contrary to such provisions of
applicable law. Exchangeable Shares not redeemed by Cableshare as a result of
such solvency provisions are subject to redemption pursuant to the optional
exchange right granted to the trustee under the Voting and Exchange Trust
Agreement as described below under "-- Liquidation of Cableshare."
 
     AUTOMATIC REDEMPTION OF EXCHANGEABLE SHARES. Subject to applicable law and
the Redemption Call Right of Source described below, on December   , 2001,
unless a later date has been specified by the Cableshare board of directors or
an earlier date has been specified by the Cableshare board of directors after
there are fewer than 350,000 Exchangeable Shares outstanding (other than
Exchangeable Shares held by Source and its subsidiaries and subject to
adjustment to such number of shares to reflect permitted changes to Exchangeable
Shares) (the "Automatic Redemption Date"), Cableshare will redeem all of the
then outstanding Exchangeable Shares in exchange for an equal number of Source
Common Shares, plus an additional amount equivalent to the full amount of all
declared but unpaid dividends on such Exchangeable Shares (the "Redemption
Price"). Notwithstanding any proposed redemption of the Exchangeable Shares by
Cableshare, Source will have the overriding right (the "Redemption Call Right")
to purchase on the Automatic Redemption Date all of the outstanding Exchangeable
Shares (other than Exchangeable Shares held by Source and its subsidiaries) in
exchange for the Redemption Price and, upon the exercise of the Redemption Call
Right, the holders thereof will be obligated to sell such shares to Source. If
Source exercises the Redemption Call Right, Cableshare's right to redeem the
Exchangeable Shares on such Automatic Redemption Date will terminate.
 
     Cableshare will, at least 120 days before the Automatic Redemption Date,
provide the registered holders of Exchangeable Shares with written notice of the
proposed redemption of the Exchangeable Shares by Cableshare. On or after the
date such proposed redemption is exercised, upon the holder's presentation and
surrender of the certificates representing the Exchangeable Shares and such
other documents as may be required at the office of the transfer agent or the
registered office of Cableshare, Cableshare will deliver the Redemption Price to
the holder at the address of the holder recorded in the securities register or
by holding the Redemption Price for pick up by the holder at the registered
office of Cableshare or the office of the transfer agent as specified in the
written notice.
 
     LIQUIDATION OF CABLESHARE. In the event of the liquidation, dissolution or
winding up of Cableshare or any other proposed distribution of the assets of
Cableshare among its shareholders for the purpose of winding up its affairs,
holders of the Exchangeable Shares will be entitled to receive from Cableshare
one Source Common Share for each Exchangeable Share they hold, plus an
additional amount equivalent to the full amount of all declared but unpaid
dividends on each such Exchangeable Share (the "Liquidation Amount"). Upon the
occurrence of such liquidation, dissolution or winding up, Source will have the
right (the "Liquidation Call Right" and, together with the Retraction Call Right
and the Redemption Call Right, the "Call Rights") to purchase all of the
outstanding Exchangeable Shares (other than Exchangeable Shares held by Source
and its subsidiaries) from the holders thereof on the effective date of such
liquidation, dissolution or winding up (the "Liquidation Date") in exchange for
the Liquidation Amount and, upon the exercise of the Liquidation Call Right, the
holders thereof will be obligated to sell such shares to Source. Upon the
occurrence of a Cableshare Insolvency Event, the trustee under the Voting and
Exchange Trust Agreement will have the right (the "Exchange Right") to require
Source to purchase any or all of the Exchangeable Shares then outstanding (other
than Exchangeable Shares held by Source and its subsidiaries) for the
Liquidation Amount. A "Cableshare Insolvency Event" is the institution by
Cableshare of any proceeding to
 
                                       63
<PAGE>   65
 
be adjudicated a bankrupt or insolvent or to be dissolved or wound up, or the
consent of Cableshare to the institution of bankruptcy, insolvency, dissolution
or winding-up proceedings against it, or the filing of a petition, answer or
consent seeking dissolution or winding up under any bankruptcy, insolvency or
analogous laws, including without limitation the Companies Creditors'
Arrangement Act (Canada) and the Bankruptcy and Insolvency Act (Canada), and the
failure by Cableshare to contest in good faith any such proceedings commenced in
respect of Cableshare within 15 days of becoming aware thereof, or the consent
by Cableshare to the filing of any such petition or to the appointment of a
receiver, or the making by Cableshare of a general assignment for the benefit of
creditors, or the admission in writing by Cableshare of its inability to pay its
debts generally as they become due, or Cableshare not being permitted, pursuant
to solvency requirements of applicable law, to redeem any Exchangeable Shares
pursuant to the Exchangeable Share Provisions.
 
     On or after the Liquidation Date, a holder of Exchangeable Shares may
surrender certificates representing such Exchangeable Shares, together with such
other documents as may be required, to Cableshare's registered office or the
office of the transfer agent. Upon receipt of the certificates and other
documents and subject to the exercise by Source of its Liquidation Call Right,
Cableshare will deliver the Liquidation Amount to such holder at the address
recorded in the securities register or by holding the Liquidation Amount for
pick up by the holder at Cableshare's registered office or the office of the
transfer agent, as specified by Cableshare in a notice to such holders.
 
     LIQUIDATION OF SOURCE. Upon the occurrence of a Source Liquidation Event,
in order for the holders of the Exchangeable Shares to participate on a pro rata
basis with the holders of Source Common Shares, Source will purchase each
outstanding Exchangeable Share (other than Exchangeable Shares held by Source
and its subsidiaries) and holders of such Exchangeable Shares will be required
to sell the Exchangeable Shares held by them at that time, in exchange for the
Liquidation Amount on the fifth business day prior to the effective date of the
liquidation, dissolution or winding up contemplated by a Source Liquidation
Event (the "Automatic Exchange Right" and, together with the Exchange Right, the
"Trustee Exchange Rights"). A "Source Liquidation Event" means (i) any
determination by Source's Board of Directors to institute voluntary liquidation,
dissolution or winding-up proceedings with respect to Source or to effect any
other distribution of assets of Source among its stockholders for the purpose of
winding up its affairs or (ii) receipt by Source of notice of, or Source
otherwise becoming aware of, any threatened or instituted claim, suit, petition
or other proceeding with respect to the involuntary liquidation, dissolution or
winding up of Source or to effect any other distribution of assets of Source
among its stockholders for the purpose of winding up its affairs.
 
     Upon a holder's request and surrender of Exchangeable Share certificates,
duly endorsed in blank and accompanied by such instruments of transfer as Source
may reasonably require, Source will deliver to such holder certificates
representing an equivalent number of Source Common Shares plus a check in the
amount equivalent to the full amount of all declared but unpaid dividends on the
Exchangeable Shares.
 
                        VALIDITY OF SOURCE COMMON SHARES
 
     The validity of the Source Common Shares offered hereby has been passed
upon for the Company by Thompson & Knight, P.C., Dallas, Texas.
 
                                 LEGAL OPINIONS
 
     The summary of the material United States federal income tax considerations
arising from the receipt and ownership of Exchangeable Shares for Source Common
Shares set forth under "Income Tax Considerations -- United States Federal
Income Tax Considerations for Cableshare Shareholders" has been included under
the authority of Thompson & Knight, P.C., of Dallas, Texas. Acquirors of the
Source Common Shares offered hereby should not rely on Thompson & Knight, P.C.
with respect to any other matters, except as set forth under "Validity of Source
Common Shares."
 
     The summary of material Canadian federal income tax considerations arising
from the ownership of Exchangeable Shares and the exchange of Exchangeable
Shares for Source Common Shares set forth under
 
                                       64
<PAGE>   66
 
"Income Tax Considerations for Cableshare Shareholders -- Canadian Federal
Income Tax Considerations for Cableshare Shareholders" has been included under
the authority of Heenan, Blaikie, Barristers & Solicitors, of Toronto, Ontario.
Holders of Exchangeable Shares and Acquirors of the Source Common Shares offered
hereby should not rely on Heenan, Blaikie with respect to any other matters.
 
                                    EXPERTS
 
     The Consolidated Financial Statements of Source Media, Inc. at December 31,
1994 and 1995, and for each of the three years in the period ended December 31,
1995, appearing herein have been audited by Ernst & Young LLP, independent
auditors, as set forth in their report thereon appearing elsewhere herein, and
are included in reliance upon such report given upon the authority of such firm
as experts in accounting and auditing.
 
     The Consolidated Financial Statements of Cableshare Inc., at March 31, 1995
and 1996, and for each of the three years in the period ended March 31, 1996,
appearing herein have been audited by KPMG, Chartered Accountants, as set forth
in their report thereon, appearing elsewhere herein, and are included in
reliance upon such report given upon the authority of such firm as experts in
accounting and auditing. The report of KPMG includes additional comments for
U.S. readers referring to the ecomomic dependency of Cableshare Inc. on its
parent.
 
                             AVAILABLE INFORMATION
 
     Source is subject to the informational requirements of the Securities
Exchange Act of 1934, as amended, and in accordance therewith files report,
proxy statements and other information with the SEC. Reports, registration
statements and other information concerning the Company may be inspected and
copied at the public reference facilities maintained by the SEC at Room 1024,
450 Fifth Street, N.W., Washington, D.C. 20549, and at the Regional Offices of
the SEC at 7 World Trade Center, New York, New York 10048 and Suite 1400,
Northwestern Atrium Center, 500 West Madison Street, Chicago, Illinois 60611.
Copies of such material can also be obtained from the Public Reference Section
of the SEC at 450 Fifth Street, N.W., Washington, D.C. 20549 at prescribed
rates. The SEC maintains a Web site at http://www.sec.gov that contains reports,
proxy and information statements and other information regarding issuers,
including Source, that file electronically with the SEC.
 
     Source has filed with the Commission a Registration Statement on Form S-1
(as amended and together with all exhibits thereto, the "Registration
Statement") under the Securities Act, with respect to the shares of Common Stock
offered by this Prospectus. This Prospectus constitutes a part of the
Registration Statement and does not contain all of the information set forth in
the Registration Statement, certain parts of which are omitted from this
Prospectus as permitted by the rules and regulations of the Commission.
Statements contained in this Prospectus as to the contents of any contract,
agreement or other document referred to herein are not necessarily complete.
Statements in this Prospectus about the contents of any contract or other
document are not necessarily complete; reference is made in each instance to the
copy of the contract or other document filed as an exhibit to the Registration
Statement. Each such statement is qualified in all respects by such reference. A
copy of the Registration Statement may be obtained at the public reference
facilities maintained by the Commission as provided in the preceding paragraph.
 
                                       65
<PAGE>   67
 
                         INDEX TO FINANCIAL STATEMENTS
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                       ------
<S>                                                                                    <C>
UNAUDITED PRO FORMA CONDENSED CONSOLIDATED FINANCIAL STATEMENTS OF SOURCE............. F-2
Unaudited Pro Forma Condensed Consolidated Balance Sheet at September 30, 1996........ F-3
Unaudited Pro Forma Condensed Consolidated Statement of Operations for the Year Ended
  December 31, 1995................................................................... F-4
Unaudited Pro Forma Condensed Consolidated Statement of Operations for the Nine Months
  Ended September 30, 1996............................................................ F-5
Notes to Unaudited Pro Forma Condensed Consolidated Financial Statements.............. F-6
HISTORICAL CONSOLIDATED FINANCIAL STATEMENTS OF SOURCE................................ F-8
Report of Independent Auditors........................................................ F-8
Consolidated Balance Sheets at December 31, 1994 and 1995, and September 30, 1996
  (unaudited)......................................................................... F-9
Consolidated Statements of Operations for the Years Ended December 31, 1993, 1994, and
  1995 and the Nine Months Ended September 30, 1995 and 1996 (unaudited).............. F-11
Consolidated Statements of Stockholders' Equity (Capital Deficiency) for the Years
  Ended
  December 31, 1993, 1994, and 1995 and the Nine Months Ended September 30, 1996
  (unaudited)......................................................................... F-12
Consolidated Statements of Cash Flows for the Years Ended December 31, 1993, 1994, and
  1995 and the Nine Months Ended September 30, 1995 and 1996 (unaudited).............. F-15
Notes to Consolidated Financial Statements............................................ F-17
HISTORICAL CONSOLIDATED FINANCIAL STATEMENTS OF CABLESHARE............................ F-33
Auditors' Report...................................................................... F-33
Consolidated Balance Sheets at March 31, 1995 and 1996, and September 30, 1996
  (unaudited)......................................................................... F-34
Consolidated Statements of Earnings for the Years Ended March 31, 1994, 1995, and
  1996, and
  the Six Months Ended September 30, 1995 and 1996 (unaudited)........................ F-35
Consolidated Statements of Deficit for the Years Ended March 31, 1994, 1995, and 1996,
  and
  the Six Months Ended September 30, 1995 and 1996 (unaudited)........................ F-35
Consolidated Statements of Changes in Financial Position for the Years Ended March 31,
  1994, 1995, and 1996, and the Six Months Ended September 30, 1995 and 1996
  (unaudited)......................................................................... F-36
Notes to Consolidated Financial Statements............................................ F-37
</TABLE>
 
                                       F-1
<PAGE>   68
 
                               SOURCE MEDIA, INC.
 
        UNAUDITED PRO FORMA CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
 
     The following unaudited pro forma condensed consolidated balance sheet as
of September 30, 1996, reflects (i) the issuance by Cableshare of Exchangeable
Shares for all of the outstanding Class A Shares and Class B Shares of
Cableshare and (ii) the issuance of options to purchase Source Common Shares in
exchange for all of the outstanding options to purchase Cableshare Class A
Shares, as described under "The Arrangement and Related Transactions", as if
such transactions had been consummated on September 30, 1996. The unaudited pro
forma condensed consolidated statements of operations for the year ended
December 31, 1995 and the nine months ended September 30, 1996 give effect to
such transactions as if they had been consummated on January 1, 1995 and January
1, 1996, respectively.
 
     These statements are not necessarily indicative of the results that would
have been obtained had the transactions described above been consummated on the
dates indicated. The unaudited pro forma condensed consolidated balance sheet
and statements of operations are based on a preliminary purchase price
allocation with respect to the assets and liabilities of Cableshare. The final
purchase price allocation may differ materially from the preliminary allocation
used for purposes of these unaudited pro forma condensed consolidated financial
statements. These statements should be read in conjunction with the Consolidated
Financial Statements of Source included elsewhere in this Proxy Circular.
 
                                       F-2
<PAGE>   69
 
                               SOURCE MEDIA, INC.
 
            UNAUDITED PRO FORMA CONDENSED CONSOLIDATED BALANCE SHEET
                               SEPTEMBER 30, 1996
                                 (in thousands)
 
<TABLE>
<CAPTION>
                                                              SOURCE         PRO FORMA         AS
                                                            MEDIA, INC.     ADJUSTMENTS     ADJUSTED
                                                            -----------     -----------     --------
<S>                                                         <C>             <C>             <C>
ASSETS
Current assets:
  Cash and cash equivalents.............................     $  12,159       $    (500)(c)  $ 11,659
  Accounts receivable, net..............................         1,049                         1,049
  Prepaid expenses and other current assets.............         1,514                         1,514
                                                             ---------       ---------      --------
Total current assets....................................        14,722            (500)       14,222
Property and equipment, net.............................         2,754                         2,754
Intangible assets, net..................................         1,324          12,081 (a)    15,372
                                                                                 1,467 (b)
                                                                                   500 (c)
Other non-current assets................................           355                           355
                                                             ---------       ---------      --------
Total assets............................................     $  19,155       $  13,548      $ 32,703
                                                             =========       =========      ========
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Trade accounts payable................................     $     909                      $    909
  Accrued payroll and other accrued liabilities.........         1,466                         1,466
  Unearned income.......................................         4,508                         4,508
  Current portion of capital lease obligations..........           119                           119
                                                             ---------       ---------      --------
Total current liabilities...............................         7,002                         7,002
Long-term debt, net of discount.........................         4,580                         4,580
Capital lease obligations, less current portion.........            39                            39
Minority interests in consolidated subsidiaries, net of
  note receivable from minority stockholder.............         2,897             290(a)      3,187
Total stockholders' equity..............................         4,637          11,791(a)     17,895
                                                                                 1,467(b)
                                                             ---------       ---------      --------
Total liabilities and stockholders' equity..............     $  19,155       $  13,548      $ 32,703
                                                             =========       =========      ========
</TABLE>
 
  See notes to unaudited pro forma condensed consolidated financial statements
 
                                       F-3
<PAGE>   70
 
                               SOURCE MEDIA, INC.
 
       UNAUDITED PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS
                          YEAR ENDED DECEMBER 31, 1995
                    (in thousands except for per share data)
 
<TABLE>
<CAPTION>
                                                              SOURCE         PRO FORMA         AS
                                                            MEDIA, INC.     ADJUSTMENTS     ADJUSTED
                                                            -----------     -----------     --------
<S>                                                         <C>             <C>             <C>
Monetary revenues.......................................     $   9,342                      $  9,342
Nonmonetary revenues....................................        15,944                        15,944
                                                             ---------                      --------
  Total revenues........................................        25,286                        25,286
Monetary cost of sales..................................         4,937                         4,937
Nonmonetary cost of sales...............................        15,944                        15,944
                                                             ---------                      --------
  Total cost of sales...................................        20,881                        20,881
                                                             ---------                      --------
Gross profit............................................         4,405                         4,405
Selling, general and administrative expenses............         7,952                         7,952
Amortization of intangible assets.......................         1,031          2,810(d)       3,841
Research and development expenses.......................         3,750                         3,750
                                                             ---------        -------       --------
                                                                12,733          2,810         15,543
                                                             ---------        -------       --------
Operating loss..........................................        (8,328)        (2,810)       (11,138)
Interest expense........................................           354                           354
Interest income.........................................          (217)                         (217)
Other (income)..........................................           (25)                          (25)
Minority interest in losses of consolidated
  subsidiaries..........................................          (252)           252(d)          --
Charges related to financing incentives.................         1,581                         1,581
                                                             ---------        -------       --------
Net loss................................................        (9,769)        (3,062)       (12,831)
Preferred stock dividends...............................           833                           833
                                                             ---------        -------       --------
Net loss attributable to common stockholders............     $ (10,602)       $(3,062)      $(13,664)
                                                             =========        =======       ========
Net loss per common share...............................     $   (1.65)                     $  (1.75)(e)
                                                             =========        =======       ========
Weighted average common shares outstanding..............         6,413                         7,800
                                                             =========        =======       ========
Supplemental net loss per common share..................     $   (1.28)                     $  (1.43)
                                                             =========        =======       ========
Supplemental weighted average common shares
  outstanding...........................................         7,516                         8,903
                                                             =========        =======       ========
</TABLE>
 
  See notes to unaudited pro forma condensed consolidated financial statements
 
                                       F-4
<PAGE>   71
 
                               SOURCE MEDIA, INC.
 
       UNAUDITED PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS
                      NINE MONTHS ENDED SEPTEMBER 30, 1996
                    (in thousands except for per share data)
 
<TABLE>
<CAPTION>
                                                              SOURCE         PRO FORMA         AS
                                                            MEDIA, INC.     ADJUSTMENTS     ADJUSTED
                                                            -----------     -----------     --------
<S>                                                         <C>             <C>             <C>
Monetary revenues.......................................      $ 6,406                       $  6,406
Nonmonetary revenues....................................        8,041                          8,041
                                                              -------                       --------
  Total revenues........................................       14,447                         14,447
Monetary cost of sales..................................        2,708                          2,708
Nonmonetary cost of sales...............................        8,041                          8,041
                                                              -------                       --------
  Total cost of sales...................................       10,749                         10,749
                                                              -------                       --------
Gross profit............................................        3,698                          3,698
Selling, general and administrative expenses............        8,081                          8,081
Amortization of intangible assets.......................          774           2,107(d)       2,881
Research and development expenses.......................        4,414                          4,414
                                                              -------         -------       --------
                                                               13,269           2,107         15,376
                                                              -------         -------       --------
Operating loss..........................................       (9,571)         (2,107)       (11,678)
Interest expense........................................          361                            361
Interest income.........................................         (662)                          (662)
Other (income)..........................................          (32)                           (32)
Minority interest in losses of consolidated
  subsidiaries..........................................          (69)            (69)(d)         --
                                                              -------         -------       --------
Net loss................................................      $(9,169)        $(2,176)      $(11,345)
                                                              =======         =======       ========
Net loss per common share...............................      $ (0.92)                      ($  1.00)(e)
                                                              =======                       ========
Weighted average common shares outstanding..............        9,933                         11,320
                                                              =======                       ========
</TABLE>
 
  See notes to unaudited pro forma condensed consolidated financial statements
 
                                       F-5
<PAGE>   72
 
                               SOURCE MEDIA, INC.
 
              NOTES TO UNAUDITED PRO FORMA CONDENSED CONSOLIDATED
                              FINANCIAL STATEMENTS
 
1.   BASIS OF PRESENTATION
 
     Pursuant to the Plan of Arrangement described under "The Arrangement and
     Related Transactions", and if the Exchangeable Share Condition is
     satisfied, the effect of the Arrangement will be that Cableshare
     Shareholders (other than Source, the Source Affiliates, and Dissenting
     Shareholders) will receive Source Common Shares or, at their option,
     Exchangeable Shares equal to the number of Class A Shares and Class B
     Shares held by them, divided by the Exchange Ratio. If the Exchangeable
     Share Condition is not satisfied, the effect of the Arrangement will be
     that Cableshare Shareholders (other than Source, the Source Affiliates, and
     Dissenting Shareholders) will receive Source Common Shares equal to the
     number of Class A Shares and Class B Shares held by them, divided by the
     Exchange Ratio. Source and the Source Affiliates that hold Class A Shares
     and Class B Shares will receive one Cableshare New Common Share for each
     Class A Share and Class B Share so held.
 
     The accompanying unaudited pro forma condensed consolidated balance sheet
     reflects the pro forma adjustments described below as if the Arrangement
     had been consummated on September 30, 1996. The accompanying unaudited pro
     forma condensed consolidated statements of operations for the year ended
     December 31, 1995 and the nine months ended September 30, 1996 reflect the
     pro forma adjustments described below as if the Arrangement had been
     consummated on January 1, 1995 and January 1, 1996, respectively. For
     purposes of the accompanying unaudited pro forma condensed consolidated
     financial statements, the following assumptions have been made:
 
     (i)   an Exchange Ratio of five;
 
     (ii)  an Average Trading Price of Source Common Shares of $8.50; and
 
     (iii) a Determination Date Foreign Exchange Rate of C$1.3235 per US$1.00.
 
     The accompanying unaudited pro forma condensed financial statements are not
     necessarily indicative of the results that would have been obtained had the
     transactions described above occurred on the dates indicated. The unaudited
     pro forma condensed consolidated balance sheet and statements of operations
     are based on a preliminary purchase price allocation with respect to the
     assets and liabilities of Cableshare. The final purchase price allocation
     may differ materially from the preliminary allocation used for purposes of
     these unaudited pro forma condensed financial statements.
 
2.   PRO FORMA ADJUSTMENTS
 
     (a)  To record the issuance by Cableshare of 1,387,000 Exchangeable Shares
          for all of the outstanding Class A and Class B Shares of Cableshare.
          Cableshare Exchangeable Shares are exchangeable into Source Common
          Shares at any time at the option of the holder, entitle the holder to
          dividend and other rights economically equivalent to those of Source
          Common Shares, and, through a voting trust, entitle the holder to vote
          at meetings of stockholders of Source. The Exchangeable Shares are
          treated as identical to Source Common Shares in the unaudited pro
          forma condensed consolidated financial statements.
 
     (b)  To record the issuance of options to purchase 191,000 Source Common
          Shares at prices ranging from US$0.29 to US$1.01 in exchange for all
          of the outstanding options to purchase Cableshare Class A Shares. Such
          issuance assumes a trading price of Source Common Shares of US$8.50 as
          of the date of the grant.
 
     (c)  To record the estimated costs of the Plan of Arrangement.
 
                                       F-6
<PAGE>   73
 
     (d)  To record the additional amortization of the intangible assets
          (goodwill and patents) to be recorded upon the acquisition of
          Cableshare, assuming a five year amortization period, and to eliminate
          the minority interests in losses of Cableshare.
 
     (e)  The pro-forma loss per common share is calculated based on the
          aggregate of the weighted average number of Source Common Shares and
          Exchangeable Shares outstanding, assuming that the purchase of the
          Class A Shares and Class B Shares held by each Cableshare Shareholder
          other than Source occurred at the beginning of the period. Stock
          options are not considered in the pro forma loss per common share
          because they are anti-dilutive.
 
                                       F-7
<PAGE>   74
 
                         REPORT OF INDEPENDENT AUDITORS
 
Board of Directors
  Source Media, Inc.
 
We have audited the accompanying consolidated balance sheets of Source Media,
Inc. (the Company) as of December 31, 1994 and 1995, and the related
consolidated statements of operations, stockholders' equity (capital
deficiency), and cash flows for each of the three years in the period ended
December 31, 1995. These financial statements are the responsibility of the
Company's management. Our responsibility is to express an opinion on these
financial statements based on our audits.
 
We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.
 
In our opinion, the financial statements referred to above present fairly, in
all material respects, the consolidated financial position of Source Media,
Inc., at December 31, 1994 and 1995, and the consolidated results of its
operations and its cash flows for each of the three years in the period ended
December 31, 1995, in conformity with generally accepted accounting principles.
 
                                                               ERNST & YOUNG LLP
Dallas, Texas
February 9, 1996
 
                                       F-8
<PAGE>   75
 
                               SOURCE MEDIA, INC.
 
                          CONSOLIDATED BALANCE SHEETS
 
                                     ASSETS
 
<TABLE>
<CAPTION>
                                                             DECEMBER 31,          
                                                       ------------------------    SEPTEMBER 30,
                                                         1994           1995           1996
                                                       ---------     ----------     ----------
                                                                                    (Unaudited)
<S>                                                    <C>           <C>            <C>
Current assets:
  Cash and cash equivalents........................    $ 127,010     $17,479,223    $12,159,425
  Trade accounts receivable, less allowance for
     doubtful accounts of $105,812, $110,199 and
     $163,900 in 1994, 1995 and 1996,
     respectively..................................      985,379      1,076,239      1,048,609
  Prepaid expenses and other current assets........      698,479        892,234        745,501
  Deferred expenses................................    1,048,560        889,393        768,167
                                                       ----------    -----------    -----------
     Total current assets..........................    2,859,428     20,337,089     14,721,702
Property and equipment:
  Production equipment.............................    2,409,663      2,421,816      2,212,074
  Computer equipment...............................      799,556        927,672      1,806,267
  Other equipment..................................      750,809        960,446      1,922,863
  Furniture and fixtures...........................      139,408        120,544        128,506
                                                       ----------    -----------    -----------
                                                       4,099,436      4,430,478      6,069,710
Accumulated depreciation and amortization..........    1,868,678      2,670,017      3,315,340
                                                       ----------    -----------    -----------
                                                       2,230,758      1,760,461      2,754,370
Intangible assets:
  Patents..........................................    3,597,989      3,597,989      3,597,989
  Goodwill.........................................    3,010,137      3,010,137      3,010,137
                                                       ----------    -----------    -----------
                                                       6,608,126      6,608,126      6,608,126
Accumulated amortization...........................    3,479,096      4,510,434      5,283,936
                                                       ----------    -----------    -----------
                                                       3,129,030      2,097,692      1,324,190
Other non-current assets...........................           --             --        354,453
                                                       ----------    -----------    -----------
     Total assets..................................    $8,219,216    $24,195,242    $19,154,715
                                                       ==========    ===========    ===========
</TABLE>
 
                                       F-9
<PAGE>   76
 
                               SOURCE MEDIA, INC.
 
                    CONSOLIDATED BALANCE SHEETS (CONTINUED)
 
           LIABILITIES AND STOCKHOLDERS' EQUITY (CAPITAL DEFICIENCY)
 
<TABLE>
<CAPTION>
                                                          DECEMBER 31,     
                                                   ---------------------------    SEPTEMBER 30,
                                                      1994            1995            1996
                                                   -----------     -----------     -----------
                                                                                   (Unaudited)
<S>                                                <C>             <C>             <C>
Current liabilities:
  Notes payable................................... $ 1,000,000     $        --     $        --
  Trade accounts payable..........................   1,559,533       1,296,516         909,371
  Accrued payroll.................................     189,083         258,734         213,049
  Accrued dividends payable.......................     503,283              --              --
  Other accrued liabilities.......................   1,148,066       1,650,091       1,252,499
  Other accrued liabilities to related parties....     204,880              --              --
  Unearned income.................................   5,373,679       4,724,957       4,507,523
  Current portion of long-term debt...............     330,000              --              --
  Current portion of capital lease obligations....     159,403         184,175         119,361
                                                   ------------    ------------    ------------
     Total current liabilities....................  10,467,927       8,114,473       7,001,803
Long-term debt, net of discount...................          --              --       4,580,365
Capital lease obligations.........................     163,101          35,039          38,407
Commitments and contingencies
Minority interests in consolidated subsidiaries...   3,871,319       3,618,629       3,549,806
Note receivable and accrued interest from minority
  stockholder, net of discount of $220,850,
  $178,866 and $147,580 in 1994, 1995 and 1996
  respectively....................................    (553,461)       (610,175)       (652,721)
                                                   ------------    ------------    ------------
                                                     3,317,858       3,008,454       2,897,085
Redeemable convertible preferred stock:
Issued shares:
  $.20 Series A -- 5,943,437 shares in 1994
  Series B -- 2,424,896 shares in 1994............  16,235,797              --              --
Stockholders' equity (capital deficiency):
  Common stock, $.001 par value. Issued shares --
     4,520,829, 10,303,556 and 10,316,605 in 1994,
     1995 and 1996, respectively..................       4,521          10,304          10,317
  Less treasury stock, at cost -- 13,438, 356,200
     and 381,351 shares in 1994, 1995 and 1996,
     respectively.................................     (10,000)     (3,515,563)     (3,757,641)
  Capital in excess of par value..................  11,412,454      59,955,392      60,750,878
  Accumulated deficit............................. (33,307,408)    (43,076,663)    (52,245,061)
  Foreign currency translation....................      (7,521)        (34,619)         (8,507)
  Notes receivable and accrued interest from
     stockholders.................................     (57,513)       (301,575)       (112,931)
                                                   ------------    ------------    ------------
     Total stockholders' equity (capital
       deficiency)................................ (21,965,467)     13,037,276       4,637,055
                                                   ------------    ------------    ------------
     Total liabilities and stockholders' equity
       (capital deficiency)....................... $ 8,219,216     $24,195,242     $19,154,715
                                                   ============    ============    ============
</TABLE>
 
                 See Notes to Consolidated Financial Statements
 
                                      F-10
<PAGE>   77
 
                               SOURCE MEDIA, INC.
 
                     CONSOLIDATED STATEMENTS OF OPERATIONS
 
<TABLE>
<CAPTION>
                                                                             
                                             YEAR ENDED DECEMBER 31,            NINE MONTHS ENDED SEPT. 30,
                                    -----------------------------------------    ------------------------
                                       1993           1994           1995           1995          1996
                                    -----------    -----------    -----------    ----------    ----------
                                                                                       (Unaudited)
<S>                                 <C>            <C>            <C>            <C>           <C>
Monetary revenues................   $ 6,431,294    $ 9,194,068    $ 9,341,720    $7,102,346    $6,405,778
Nonmonetary revenues.............    18,751,628     21,748,976     15,944,656    12,670,079     8,041,541
                                    ------------   ------------   ------------   -----------   -----------
  Total revenues.................    25,182,922     30,943,044     25,286,376    19,772,425    14,447,319
Monetary cost of sales...........     4,455,807      5,247,685      4,936,729     3,845,940     2,707,457
Nonmonetary cost of sales........    18,751,628     21,748,976     15,944,656    12,670,079     8,041,541
                                    ------------   ------------   ------------   -----------   -----------
  Total cost of sales............    23,207,435     26,996,661     20,881,385    16,516,019    10,748,998
                                    ------------   ------------   ------------   -----------   -----------
Gross profit.....................     1,975,487      3,946,383      4,404,991     3,256,406     3,698,321
Selling, general, and
  administrative expenses........     6,785,918      8,987,438      7,951,837     5,860,516     8,081,441
Amortization of intangible
  assets.........................     1,655,992      1,684,353      1,031,337       773,503       773,503
Research and development
  expenses.......................     1,338,787      2,705,557      3,750,244     2,614,344     4,414,119
Write-down of intangible
  assets.........................            --      1,900,000             --            --            --
                                    ------------   ------------   ------------   -----------   -----------
                                      9,780,697     15,277,348     12,733,418     9,248,363    13,269,063
                                    ------------   ------------   ------------   -----------   -----------
Operating loss...................    (7,805,210)   (11,330,965)    (8,328,427)   (5,991,957)   (9,570,742)
Interest expense.................       386,758        417,587        354,333       346,604       360,617
Interest income..................      (160,149)      (122,011)      (217,284)     (156,383)     (661,931)
Other (income) expense...........         6,444      1,463,571        (24,782)      (12,515)      (32,207)
Minority interests in losses of
  consolidated subsidiaries......      (145,745)      (232,891)      (252,689)     (130,411)      (68,823)
Charges related to financing
  incentives.....................     2,025,938             --      1,581,250     1,581,250            --
                                    ------------   ------------   ------------   -----------   -----------
Net loss.........................    (9,918,456)   (12,857,221)    (9,769,255)   (7,620,502)   (9,168,398)
Preferred stock dividends........       768,909      1,621,240        832,651       832,651            --
                                    ------------   ------------   ------------   -----------   -----------
Net loss attributable to common
  stockholders...................  $(10,687,365)  $(14,478,461)  $(10,601,906)  $(8,453,152)  $(9,168,398)
                                   ============   ============   ============   ===========   ===========
Net loss per common share........  $      (2.66)  $      (3.22)  $      (1.65)  $     (1.48)  $     (0.92)
                                   ============   ============   ============   ===========   ===========
Weighted average common shares
  outstanding....................     4,021,579      4,498,298      6,412,690     5,727,735     9,932,528
                                    ============   ============   ============   ===========   ===========
Supplemental net loss per common
  share..........................   $        --    $     (2.01)   $     (1.28)   $    (1.04)   $       --
                                    ============   ============   ============   ===========   ===========
Supplemental weighted average
  common shares outstanding......            --      6,389,773      7,516,067     7,202,947            --
                                    ============   ============   ============   ===========   ===========
</TABLE>
 
                 See Notes to Consolidated Financial Statements
 
                                      F-11
<PAGE>   78
 
                               SOURCE MEDIA, INC.
 
      CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (CAPITAL DEFICIENCY)
 
<TABLE>
<CAPTION>
                                                                                                      NOTES            TOTAL
                          COMMON STOCK                    CAPITAL IN                   FOREIGN      RECEIVABLE     STOCKHOLDERS'
                       -------------------    TREASURY    EXCESS OF    ACCUMULATED    CURRENCY         FROM       EQUITY (CAPITAL
                        SHARES     AMOUNT      STOCK      PAR VALUE      DEFICIT     TRANSLATION   STOCKHOLDERS     DEFICIENCY)
                       ---------   -------   ----------   ----------   -----------   -----------   ------------   ---------------
<S>                    <C>         <C>       <C>          <C>          <C>           <C>           <C>            <C>
Balance at December
  31, 1992...........  3,817,280   $3,817    $  (10,000)  $5,985,522   $(10,531,731)  $ (16,240)    $       --      $(4,568,632)
Issuance of common
  stock..............    692,642      693            --    6,786,197           --            --             --        6,786,890
Nonmonetary employee
  compensation
  related to stock
  options............         --       --            --      239,929           --            --             --          239,929
Dividend-in-kind
  ($0.15 per Series A
  preferred share)...         --       --            --     (768,908)          --            --             --         (768,908)
Notes receivable from
  stockholders.......         --       --            --           --           --            --       (852,513)        (852,513)
Repayments of notes
  receivable from
  stockholders.......         --       --            --           --           --            --        800,000          800,000
Net loss.............         --       --            --           --     (9,918,456)         --             --       (9,918,456)
Foreign currency
  translation........         --       --            --           --           --        79,252             --           79,252
                       ---------   ------    ----------   ----------   ------------   ---------     -----------     -----------
Balance at December
  31, 1993...........  4,509,922    4,510       (10,000)  12,242,740    (20,450,187)     63,012        (52,513)      (8,202,438)
Issuance of common
  stock upon exercise
  of stock options...      4,583        5            --        3,460           --            --             --            3,465
Issuance of common
  stock to acquire
  patents............      6,324        6            --       99,994           --            --             --          100,000
Issuance of warrants
  for services
  provided...........         --       --            --      456,250           --            --             --          456,250
Nonmonetary employee
  compensation
  related to stock
  options............         --       --            --      231,250           --            --             --          231,250
Dividend-in-kind
  ($0.20 per Series A
  preferred share)...         --       --            --   (1,117,957)          --            --             --       (1,117,957)
Dividend-in-kind
  ($0.21 per Series B
  preferred share)...         --       --            --     (503,283)          --            --             --         (503,283)
Accrued interest on
  note receivable
  from stockholder...         --       --            --           --           --            --         (5,000)          (5,000)
Net loss.............         --       --            --           --    (12,857,221)         --             --      (12,857,221)
Foreign currency
  translation........         --       --            --           --           --       (70,533)            --          (70,533)
                       ---------   ------    ----------   ----------   ------------   ---------     -----------     -----------
Balance at December
  31, 1994...........  4,520,829    4,521       (10,000)  11,412,454    (33,307,408)     (7,521)       (57,513)     (21,965,467)
</TABLE>
 
                                      F-12
<PAGE>   79
 
                               SOURCE MEDIA, INC.
 
      CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (CAPITAL DEFICIENCY)
                                  (CONTINUED)
 
<TABLE>
<CAPTION>
                                                          
                                                                                                     NOTES            TOTAL
                                                         CAPITAL IN                   FOREIGN      RECEIVABLE     STOCKHOLDERS'
                          COMMON STOCK        TREASURY    EXCESS OF    ACCUMULATED    CURRENCY         FROM       EQUITY (CAPITAL
                        SHARES     AMOUNT      STOCK      PAR VALUE      DEFICIT     TRANSLATION   STOCKHOLDERS     DEFICIENCY)
                       ----------  -------   ---------   ----------    -----------   -----------   -----------     ------------
<S>                    <C>         <C>       <C>          <C>          <C>           <C>           <C>            <C>
Issuance of common
  stock upon exercise
  of stock options...     84,639       85            --      254,685           --            --       (225,000)          29,770
Nonmonetary employee
  compensation
  related to stock
  options............         --       --            --       46,875           --            --             --           46,875
Dividend-in-kind
  ($0.10 per Series A
  preferred share)...         --       --            --     (564,022)          --            --             --         (564,022)
Dividend-in-kind
  ($0.13 per Series B
  preferred share)...         --       --            --     (268,629)          --            --             --         (268,629)
Issuance of warrant
  on bridge
  financings.........         --       --            --    1,581,250           --            --             --        1,581,250
Conversion of notes
  payable to common
  stock..............     67,570       68            --      329,932           --            --             --          330,000
Conversion of
  preferred stock to
  common stock in the
  Merger.............  2,109,516    2,109            --   17,553,869           --            --             --       17,555,978
Company common stock
  deemed issued in
  the Merger.........  1,184,440    1,184            --    8,905,898           --            --             --        8,907,082
Redemption of Merger
  dissenting
  shares.............         --       --      (527,220)          --           --            --             --         (527,220)
Merger expenses......         --       --            --   (1,135,099)          --            --             --       (1,135,099)
Cancellation of
  treasury stock in
  the Merger.........    (13,438)     (13)       10,000       (9,987)          --            --             --               --
Accrued interest on
  notes receivable
  from
  stockholders.......         --       --            --           --           --            --        (19,062)         (19,062)
Issuance of common
  stock in secondary
  offering...........  2,350,000    2,350            --   21,848,166                                                 21,850,516
Purchase of treasury
  stock..............                        (2,988,343)                                                             (2,988,343)
Net loss.............         --       --            --                 (9,769,255)          --                      (9,769,255)
Foreign currency
  translation........         --       --            --           --           --       (27,098)            --          (27,098)
                       ----------  ------    -----------  ----------   -----------      --------     ---------       ----------
Balance at December
  31, 1995...........  10,303,556  10,304    (3,515,563)  59,955,392   (43,076,663)     (34,619)      (301,575)      13,037,276
</TABLE>
 
                                      F-13
<PAGE>   80
 
                               SOURCE MEDIA, INC.
 
      CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (CAPITAL DEFICIENCY)
                                  (CONTINUED)
 
<TABLE>
<CAPTION>
                                                                                                      NOTES            TOTAL
                          COMMON STOCK                    CAPITAL IN                   FOREIGN      RECEIVABLE     STOCKHOLDERS'
                       -------------------    TREASURY    EXCESS OF    ACCUMULATED    CURRENCY         FROM       EQUITY (CAPITAL
                        SHARES     AMOUNT      STOCK      PAR VALUE      DEFICIT     TRANSLATION   STOCKHOLDERS     DEFICIENCY)
                       ---------   -------   ----------   ----------   -----------   -----------   ------------   ---------------
<S>                    <C>         <C>       <C>          <C>          <C>           <C>           <C>            <C>
Issuance of common
  stock upon exercise
  of stock options...     13,049       13            --       79,699           --            --             --           79,712
Issuance of warrant
  with First Tranche
  Note...............         --       --            --      745,830           --            --             --          745,830
Issuance of note
  receivable to
  stockholder........         --       --            --           --           --            --        (47,998)         (47,998)
Repayment of notes
  receivable and
  accrued interest
  from stockholder
  through surrender
  of common stock....         --       --      (242,078)          --           --            --        242,078               --
Other................         --       --            --      (30,043)          --            --         (5,436)         (35,479)
Net loss.............         --       --            --           --    (9,168,398)          --             --       (9,168,398)
Foreign currency
  translation........         --       --            --           --           --        26,112             --           26,112
                      ----------  --------  -----------  -----------  ------------      -------      ---------      -----------
Balance as of Septem-
  ber 30, 1996
  (unaudited)........ 10,316,605  $10,317   $(3,757,641) $60,750,878  $(52,245,061)     $(8,507)     $(112,931)     $ 4,637,055
                      ==========  =======   ===========  ===========  ============      =======      =========      ===========
</TABLE>
 
                 See Notes to Consolidated Financial Statements
 
                                      F-14
<PAGE>   81
 
                               SOURCE MEDIA, INC.
 
                     CONSOLIDATED STATEMENTS OF CASH FLOWS
 
<TABLE>
<CAPTION>
                                                                               NINE MONTHS ENDED
                                         YEAR ENDED DECEMBER 31,                 SEPTEMBER 30,
                                 ---------------------------------------    ------------------------
                                    1993          1994           1995          1995          1996
                                 ----------    -----------    ----------    ----------    ----------
                                                                                  (Unaudited)
<S>                              <C>           <C>            <C>           <C>           <C>
OPERATING ACTIVITIES
Net loss......................  $(9,918,456)  $(12,857,221)  $(9,769,255)  $(7,620,502)  $(9,168,398)
Adjustments to reconcile net
  loss to net cash used in
  operating activities:
Depreciation..................      475,536        732,049       801,339       636,353       645,323
Amortization of intangible
  assets......................    1,655,992      1,684,332     1,031,337       773,503       773,502
Write-down of intangible
  assets......................           --      1,900,000            --            --            --
Warrants issued for services
  provided....................           --        456,250            --            --            --
Provision for losses on
  accounts receivable.........      260,296         32,353       108,123        89,475        86,983
Minority interests in net
  losses......................     (145,745)      (232,891)     (252,689)     (130,411)      (68,823)
Charges relating to financing
  incentives..................    2,025,938             --     1,581,250     1,581,250            --
Other, net....................      227,768        172,036       (28,903)       (7,809)     (157,152)
Changes in operating assets
  and liabilities:
  Trade accounts receivable...     (875,580)       327,849      (198,983)     (136,192)      (59,353)
  Prepaid expenses and other
     current assets...........     (693,371)       254,004      (193,754)      110,927       146,733
  Deferred expenses...........     (513,426)      (397,245)      159,168       (25,445)      121,226
  Trade accounts payable......     (152,793)       568,058      (263,017)      294,395      (387,145)
  Accrued payroll.............     (145,763)      (313,149)       69,651        82,851       (45,685)
  Other accrued liabilities...     (420,884)       558,461       502,025        (2,072)      (70,786)
  Other accrued liabilities to
     related parties..........      473,505       (268,685)     (204,880)     (166,263)           --
  Unearned income.............    1,731,389      1,030,799      (648,722)     (375,557)     (217,434)
                                 ----------   ------------   -----------   -----------   -----------
Net cash used in operating
  activities..................   (6,015,594)    (6,353,000)   (7,307,310)   (4,895,497)   (8,401,009)
INVESTING ACTIVITIES
Capital expenditures..........     (928,174)      (412,438)     (257,888)     (196,598)   (1,449,213)
Proceeds from advance payment
  of note receivable from
  director....................      800,000             --            --            --            --
Funding of note receivable
  from minority stockholder...     (750,000)            --            --            --            --
                                 ----------   ------------   -----------   -----------   -----------
Net cash used in investing
  activities..................     (878,174)      (412,438)     (257,888)     (196,598)   (1,449,213)
FINANCING ACTIVITIES
Proceeds from issuance of debt
  and warrant.................   $2,150,000    $ 1,000,000    $3,050,000    $2,825,000    $5,000,000
Payments on debt..............           --       (200,000)   (4,050,000)   (4,380,000)           --
Payment of fees and expenses
  associated with issuance of
  debt and warrant............           --             --            --            --      (393,891)
</TABLE>
 
                                      F-15
<PAGE>   82
 
                               SOURCE MEDIA, INC.
 
               CONSOLIDATED STATEMENTS OF CASH FLOWS (CONTINUED)
 
<TABLE>
<CAPTION>
                                                                               NINE MONTHS ENDED
                                         YEAR ENDED DECEMBER 31,                 SEPTEMBER 30,
                                  --------------------------------------   -------------------------
                                    1993          1994           1995         1995           1996
                                 -----------    ----------   -----------   -----------   ------------
                                                                                  (Unaudited)
<S>                              <C>            <C>           <C>           <C>             <C>
Payments on debt to related
  parties.....................     (473,965)            --            --            --            --
Payments on capital lease
  obligations.................     (361,456)      (164,800)     (176,503)     (129,293)     (151,466)
Proceeds from issuance of
  common stock upon exercise
  of stock options............        6,182          3,465        29,770       574,230        79,712
Proceeds from issuance of
  common stock in secondary
  offering, net of fees and
  expenses....................           --             --    21,850,516            --            --
Purchase of treasury stock....           --             --    (2,988,343)           --            --
Proceeds from issuance of
  preferred stock net of fees
  and expenses................    6,496,019      5,054,787            --            --            --
Cash acquired in the Merger...           --             --     8,891,389     8,891,389            --
Payment of fees and expenses
  associated with Merger......           --             --    (1,135,099)   (1,135,159)           --
Redemption of Merger dissenter
  shares......................           --             --      (527,220)     (527,220)           --
Other.........................           --             --            --            --       (30,043)
                                 -----------   -----------    ----------    -----------  ------------
Net cash provided by financing
  activities..................    7,816,780      5,693,452    24,944,510     6,118,947     4,504,312
Effect of exchange rate
  changes on cash and cash
  equivalents.................       14,483        (35,859)      (27,099)      (33,105)       26,112
                                 -----------   -----------    ----------    -----------  ------------
Net increase (decrease) in
  cash and cash equivalents...      937,495     (1,107,845)   17,352,213       993,747    (5,319,798)
Cash and cash equivalents at
  beginning of period.........      297,360      1,234,855       127,010       127,010    17,479,223
                                 -----------   -----------    ----------    -----------  ------------
Cash and cash equivalents at
  end of period...............   $1,234,855    $   127,010   $17,479,223    $1,120,757   $12,159,425
                                 ==========    ===========    ===========   ==========   ===========
Supplemental Disclosures of
  Cash Flow Information
Cash paid during the period
  for:
  Interest on long-term debt,
     notes payable, and
     capital leases...........   $  287,188    $   417,587    $  354,333    $  346,604    $   33,811
                                 ==========    ===========    ==========    ==========    ==========
</TABLE>
 
                 See Notes to Consolidated Financial Statements
 
                                      F-16
<PAGE>   83
 
                               SOURCE MEDIA, INC.
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
1.   COMPANY HISTORY AND DESCRIPTION
 
     Source Media, Inc. (the Company), through its wholly-owned subsidiary IT
     Network, Inc. (IT), is a provider of information and services to consumers
     through the television and telephone. The Company's Interactive Channel,
     which is in the development stage, is designed to provide a range of
     on-line information and services to consumers utilizing cable television
     and telephone lines. Subscribers will be able to use the Interactive
     Channel's menu-driven navigational system to access desired interactive
     programming presented in the format of photographic quality, still-frame
     pictures, text and graphics accompanied by audio. For the past seven years,
     the Company has been delivering audiotext information to consumers through
     the touch-tone telephone. Through its On-Line Telephone Business, the
     Company provides consumers with information on demand, such as news,
     weather and sports, together with topical information for health, legal and
     other matters of consumer interest. The financial results of the Company
     reflect the operations of its On-Line Telephone Business and general,
     development, advertising and promotion expenses related to the Interactive
     Channel.
 
     IT was incorporated on July 19, 1988, as a Colorado corporation and
     subsequently, on July 23, 1991, reincorporated in Texas. On June 23, 1995,
     IT merged (the Merger ) into a wholly-owned subsidiary of HB Communications
     Acquisition Corp. (HBAC). Pursuant to the Merger agreement, IT's
     outstanding common stock and preferred stock were converted into an
     aggregate 6,696,992 shares of the Company's common stock. In connection
     with the Merger, HBAC changed its name to Source Media, Inc. Because the
     Merger resulted in IT's stockholders having a majority ownership in SMI,
     the Merger was accounted for as an issuance of IT's shares in exchange for
     the net assets of SMI. In connection with the Merger, SMI paid $527,000 to
     redeem 50,500 HBAC common shares held by dissenting stockholders and repaid
     $4,100,000 of IT debt and related accrued interest. For accounting and
     financial reporting purposes, the Company has reflected in its consolidated
     financial statements the assets, liabilities, and equity of IT at their
     historical book values. Accordingly, the results of operations and
     financial position of the Company, for periods and dates prior to the
     Merger, are the historical results of operations and financial position of
     IT for such period and dates.
 
     HBAC was formed as a Delaware corporation in January 1993 for the purpose
     of acquiring a company in the communications industry. To provide the funds
     for such acquisition, in June 1993, HBAC consummated an initial public
     offering of units consisting of shares of common stock and warrants to
     purchase shares of common stock. HBAC incurred a net loss of approximately
     $392,000 for the year ended December 31, 1994, and reported net income of
     approximately $177,000 for the three months ended March 31, 1995. As these
     amounts are not significant if combined with the results of operations of
     IT, pro forma statement of operations data for these periods have not been
     presented. At the time of the Merger, HBAC's only monetary asset was cash
     of approximately $8.9 million.
 
     The Company has authorized for issuance up to 1,000,000 shares of $.001 par
     value preferred stock and 50,000,000 shares of $.001 par value common
     stock. On September 19, 1995 stockholders of the Company approved a 1-for-2
     reverse split of its common stock to be effective on October 10, 1995. All
     historical share and per-share amounts presented herein have been
     retroactively adjusted to reflect the reverse split. In addition,
     historical share and per-share amounts presented herein have been
     retroactively adjusted to reflect the SMI shares issued or issuable to the
     former IT common stockholders as part of the Merger.
 
2.   SIGNIFICANT ACCOUNTING POLICIES
 
     PRINCIPLES OF CONSOLIDATION
 
     The consolidated financial statements include the accounts of the Company;
     its wholly-owned subsidiary IT; and IT's majority-owned Canadian
     subsidiaries, Cableshare Inc., a publicly traded company (Cableshare), and
     997758 Ontario Inc. (997758), (collectively, the Company). All material
     intercom-
 
                                      F-17
<PAGE>   84
 
                               SOURCE MEDIA, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
     pany amounts and transactions have been eliminated. Certain amounts from
     prior years have been reclassified to conform with the current year
     presentation.
 
     USE OF ESTIMATES
 
     The preparation of financial statements in conformity with generally
     accepted accounting principles requires management to make estimates and
     assumptions that affect the amounts reported in the financial statements
     and accompanying notes. Actual results could differ from those estimates.
 
     MINORITY INTERESTS
 
     Minority interests represent the minority stockholders' proportionate
     shares of the equity of both Cableshare and 997758. At December 31, 1994
     and 1995, the Company owned approximately 51% of Cableshare's capital
     stock, representing approximately 74% voting control. At December 31, 1994
     and 1995, the Company owned 100% of the voting Class X shares of 997758,
     while an individual owned 100% of the Class Y nonvoting shares of 997758,
     as more fully discussed in Note 5 -- Stock Options, Warrants and Shares
     Reserved for Future Issuance.
 
     CASH AND CASH EQUIVALENTS
 
     The Company classifies all highly liquid investments with original
     maturities of three months or less to be cash equivalents.
 
     MONETARY REVENUE RECOGNITION
 
     To date, the Company has earned monetary revenues through advertising
     sponsorships of its On-Line Telephone Business. Monetary revenues are
     recognized on a straight-line basis over the term of the respective
     contracts, beginning at the time of the annual distribution of the
     applicable local Yellow Pages directory, or at the applicable contract
     start date, if later, and continuing to the end of the term of the
     respective contracts, which is typically from 3 to 12 months.
 
     The Company has entered into agreements with certain Regional Bell
     Operating Companies or their affiliates (RBOCs) whereby the Company agreed
     to share certain revenues and the RBOCs agreed to bear certain costs. Under
     the terms of certain of these agreements, the Company's sales force sells
     certain advertising sponsorships for the Company's interactive telephone
     programming. In these cases, the Company recognizes the full amount of
     revenues received, pursuant to sponsorships sold by the Company's sales
     personnel, as revenue on a straight-line basis and recognizes the RBOCs'
     costs under such agreements as cost of sales. In other agreements, the
     RBOCs sales force sells such sponsorships. In these cases, the Company
     recognizes as revenues only its share of the contract amount as these
     services are provided.
 
     NONMONETARY REVENUE RECOGNITION
 
     In each of its markets, the Company has entered into nonmonetary barter
     agreements with local television and radio stations. These media sponsors
     provide the Company with advertising time on their stations and update
     local news, weather and sports programming on the On-Line Telephone Service
     in exchange for promotional messages provided in connection with the
     On-Line Telephone Business and print advertisements in the Company's
     printed Network Guide. Revenues and cost of sales associated with these
     nonmonetary barter transactions are included in the Company's consolidated
     statements of operations at the estimated fair value of the on-air
     advertisements and information content provided to the Company by Media
     Sponsors.
 
     Nonmonetary revenues and cost of sales are recognized on a straightline
     basis over the terms of the respective contracts. The Company was obligated
     to provide future services and was entitled to receive
 
                                      F-18
<PAGE>   85
 
                               SOURCE MEDIA, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
     future advertising and information content of $14,967,402 and $9,430,099 at
     December 31, 1994 and 1995, respectively.
 
     DEFERRED EXPENSES
 
     Under its agreements with certain RBOCs, the Company pays the RBOCs fees
     equal to a percentage of cash collected under monetary contracts with
     advertisers, as discussed above. Such fees are paid to the RBOCs prior to
     the end of the contracts with the advertisers, while the related expenses
     are recognized on a straight-line basis over the length of the advertising
     contracts. Accordingly, deferred expense represents cumulative fees paid to
     the RBOCs, under revenue and cost-sharing agreements, in excess of
     cumulative expenses recognized under the same contracts.
 
     PROPERTY AND EQUIPMENT
 
     Property and equipment are recorded at cost. Depreciation and amortization,
     including the amortization of assets recorded under capital lease
     obligations (which is included in depreciation expense), are computed by
     the straight-line method over the estimated useful lives of the assets.
     Production equipment and computer and other equipment are depreciated over
     a five-year period. Furniture and fixtures are depreciated over a
     seven-year period.
 
     INTANGIBLE ASSETS
 
     Goodwill is related to the acquisition of the Cableshare interest and is
     amortized using the straight-line method over an estimated useful life of
     five years. Patents are also amortized using the straight-line method over
     an estimated useful life of five years.
 
     The Company continually reevaluates the propriety of the carrying value of
     intangible assets, as well as the amortization periods, to determine
     whether current events and circumstances warrant adjustment to the carrying
     value or revisions to estimates of useful lives. To measure any potential
     impairment of goodwill and patents, the Company periodically compares the
     carrying value of its investment in Cableshare to its equity ownership
     percentage of the fair market value of Cableshare. As a result of this
     periodic evaluation, effective December 31, 1994, the Company recorded a
     write-down of its patents and goodwill in the amount of $1,900,000.
 
     UNEARNED INCOME
 
     Under its monetary contracts with advertisers, the Company typically bills
     the sponsorship fees before the end of the contracts, while revenue is
     earned on a straight-line basis over the length of the same contracts.
     Accordingly, unearned income represents cumulative amounts billed under
     monetary contracts in excess of cumulative revenues earned under the same
     contracts.
 
     TRANSLATION OF FOREIGN CURRENCIES
 
     The financial positions and results of operations of Cableshare and 997758
     are measured using local currency as the functional currency. Assets and
     liabilities of these subsidiaries are translated at the exchange rate in
     effect at each year-end. Statement of operations accounts are translated at
     the average rate of exchange prevailing during the year. Translation
     adjustments arising from the use of differing exchange rates from period to
     period are included in the foreign currency translation account in
     stockholders' equity.
 
     STOCK OPTIONS
 
     The Company accounts for employee and director stock option grants in
     accordance with Accounting Principles Board Opinion No. 25, Accounting For
     Stock Issued to Employees (APB 25) and related Interpretations. Under APB
     25, no compensation expense is recognized for stock option grants to
 
                                      F-19
<PAGE>   86
 
                               SOURCE MEDIA, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
     employees and directors if the exercise price of the Company's stock option
     grants is at or above the fair market value of the underlying stock on the
     date of grant.
 
     COMPUTATION OF NET LOSS AND SUPPLEMENTAL NET LOSS PER COMMON SHARE
 
     The computation of net loss per common share in each period is based on the
     weighted average number of common shares outstanding for each period, after
     the retroactive adjustment to reflect shares issued to the former IT common
     stockholders as part of the Merger. Convertible securities and stock
     options are not included in the net loss per common share calculation for
     each period because they are anti-dilutive. The common stock held by HBAC
     stockholders and the common stock issued upon the conversion of the
     preferred stock of IT are included in the computation from the date of the
     Merger.
 
     Supplemental net loss per common share and supplemental weighted average
     common shares outstanding are provided under the assumption the Merger took
     place at the beginning of the respective periods indicated. Under this
     assumption, supplemental weighted average common shares outstanding include
     (1) common shares that would have been outstanding upon the conversion of
     IT's preferred shares and (2) additional shares equal to that portion of
     the common shares held by HBAC stockholders assumed to have been issued in
     order to repay the portion of the $4.1 million of IT debt and related
     accrued interest outstanding for each period. Supplemental net loss is
     computed as historical net loss less the impact of interest expense related
     to the $4.1 million of IT debt and related accrued interest repaid with the
     proceeds from the Merger.
 
     EXPENSES RELATED TO DISCONTINUED PUBLIC OFFERING
 
     Included in Other Income (Expense) during 1994 are expenses of $1,479,000
     associated with a discontinued public offering.
 
     UNAUDITED INTERIM INFORMATION
 
     The interim consolidated financial information contained herein is
     unaudited but, in the opinion of management, includes all adjustments,
     which are of a normal recurring nature, necessary for a fair presentation
     of the financial position, results of operations, and cash flows for the
     periods presented. Results of operations for the nine months ended
     September 30, 1996 are not necessarily indicative of the results that may
     be expected for the entire year ending December 31, 1996.
 
     On April 3, 1996, the Company issued a senior note (the "First Tranche
     Note") in the principal amount of $5.0 million and a warrant entitling the
     holder thereof to purchase 500,000 shares of the Company's common stock at
     a purchase price of $10.21 per share. Additional notes (the "Second Tranche
     Note") in the aggregate principal amount of up to $5.0 million may be
     issued on or before April 3, 1997 provided certain conditions are met. On
     September 30, 1996, the Company issued an additional senior note in the
     amount of $326,806 for the payment of interest on the First Tranche Note.
     This note has terms identical to the First Tranche Note. In connection with
     this transaction, if certain conditions are met and the Company elects to
     issue the Second Tranche Note, the Company will be obligated to issue a
     second warrant entitling the holder to purchase up to an additional 500,000
     shares of the Company's common stock at a purchase price of $10.21 per
     share. All notes issued in connection with this transaction are due on
     March 31, 2001 and bear interest at the rate of 13% per annum through March
     31, 1998 and 12% thereafter. On March 31, 2000, the Company must make a
     prepayment of the notes equal to 33.33% of the then outstanding principal
     (together with interest accrued to date on such principal amount). Through
     March 31, 1998, at the option of the Company, interest payments may be made
     through the issuance of additional notes. The notes are secured by a lien
     on all of the Company's assets, including its shares of stock in
     Cableshare, and the Company's licensing agreement with Cableshare. Except
     for the required prepayment described above, the note agreement provides
     for a prepayment penalty and customary covenants and events of default. The
     warrant contains standard anti-dilution provisions, and is
 
                                      F-20
<PAGE>   87
 
                               SOURCE MEDIA, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
     exercisable, in whole or in part, at any time until its expiration on March
     31, 2001. The Company also granted the holders of the warrant demand and
     "piggyback" registration rights covering the shares of the Company's common
     stock issuable upon exercise of the warrant. The estimated fair market
     value of the warrant was credited to capital in excess of par value and the
     senior notes were recorded at a corresponding discount. The discount on the
     senior notes is being amortized to interest expense using the effective
     interest rate method over the stated term of the senior notes, resulting in
     an effective interest rate on the senior notes of 16.2%.
 
     In April 1996, Cableshare and GTE Corporation and GTE Mainstreet
     Incorporated (collectively, "GTE") agreed to dismiss all litigation between
     Cableshare and GTE, and Cableshare and the Company granted a license to
     GTE, for a fee, of the Cableshare United States patents.
 
     During July 1996, the Board of Directors of the Company adopted the
     Employee Stock Purchase Plan (the "Plan"), subject to approval by the
     Company's stockholders at the 1997 annual meeting. Under the Plan, eligible
     employees may purchase shares of the Company's common stock at a discount
     through voluntary monthly payroll deductions, beginning in September 1996.
     In connection with the Plan, the Company has set aside 100,000 shares of
     Common Stock held in treasury.
 
     During June and July 1996, the Board of Directors granted 665,000 stock
     options to certain officers and managers of the Company under the terms of
     the 1995 Performance Equity Plan at exercise prices ranging from $8.28 per
     share to $10.50 per share.
 
     In September 1996 in Colorado Springs, Colorado, the Company commercially
     introduced the Interactive Channel, its on-line television programming
     service which provides a range of on-demand information and services to
     subscribers utilizing cable television and telephone lines.
 
     In October 1996, the Company acquired certain audiotext servicing assets
     from The Reuben H. Donnelly Corporation ("Donnelly") for an aggregate
     purchase price of $750,000. In connection therewith, the Company executed a
     services agreement with a three year minimum term. Under the terms of the
     agreement, Donnelly is obligated to pay the Company a minimum of $3.2
     million over the term of the agreement and the Company is assuming
     Donnelly's operating responsibilities for its audiotext business.
 
3.   LONG-TERM DEBT AND NOTES PAYABLE
 
     During March and April 1992 the Company issued convertible notes
     (Convertible Notes) to a director and outside investors for proceeds of
     $3,000,000 (stated interest rate of 12%, effective interest rate of 17%).
     As discussed more fully in Note 9 -- Charges Related to Financing
     Incentives, in April and May 1993, several of these investors, including
     the director, converted their Convertible Notes into shares of the
     Company's common stock. Upon conversion, the Convertible Notes were
     canceled. Of the original proceeds of $3,000,000, Convertible Notes of
     $330,000, excluding accrued interest, were outstanding as of December 31,
     1994. In September 1995, the remaining investors converted their
     Convertible Notes into 67,570 shares of the Company's common stock. Upon
     conversion, the Convertible Notes were canceled.
 
     During December 1994 the Company entered into two $500,000 demand
     promissory note agreements (1994 Notes Payable) which bore interest at the
     rate of 10%, with 21st Century Investments (21st Century), a New York
     general partnership and Company stockholder. As an inducement to 21st
     Century to provide the 1994 Notes Payable to the Company, the Company
     agreed in principle to negotiate and subsequently issue and sell to 21st
     Century an aggregate $2,000,000 of 10% senior secured notes, together with
     warrants to purchase up to 537,500 shares of the Company's common stock, to
     effect certain amendments to the Certificate of Designations relating to
     the Company's Series A Preferred Stock and Series B Convertible Preferred
     Stock (Series B Preferred Stock), to amend the terms of certain existing
     warrants to acquire shares of the Company's common stock that are currently
     held by an affiliate of 21st Century, and to grant certain registration
     rights with respect to shares of common stock currently held by 21st
     Century and its affiliates. During 1995, the Company entered into two loan
     agreements (collectively,
 
                                      F-21
<PAGE>   88
 
                               SOURCE MEDIA, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
     the 1995 Loan Agreements), at a rate of 10%, with several individuals,
     institutions and 21st Century, acting as agent (the Lenders). Proceeds from
     the 1995 Loan Agreements consisted of $3,050,000 and the cancellation of
     the 1994 Notes Payable in the amount of $1,000,000. Advances under the 1995
     Loan Agreements were repaid on the closing date of the Merger (see Note 1
     -- Company History and Description ).
 
4.   REDEEMABLE CONVERTIBLE PREFERRED STOCK
 
     On April 9, 1993, the Company issued to three investors an aggregate of
     5,000,000 shares of its mandatorily redeemable Series A Preferred Stock in
     a private placement for proceeds of $10,000,000, consisting of $7,200,000
     of cash and the conversion of certain debt and accrued interest. Dividends
     of $.20 per share per annum were payable quarterly. Dividends were payable
     in-kind the first year, at the election of the Company, and at the election
     of each investor the second year and were cumulative in years two through
     five.
 
     The Company exercised its option to pay dividends in-kind on its Series A
     Preferred Stock during 1993 and, in 1995, made changes to the Series A
     Preferred Stock's Certificate of Designations to allow 1994 and future
     dividends to be paid in-kind. During 1993, 1994 and 1995, the Company
     issued 384,454 shares, 557,214 shares, and 289,199 shares, respectively, of
     Series A Preferred Stock in payment of Series A Preferred Stock dividends
     of $768,909 ($0.15 per share), $1,117,955 ($0.20 per share), and $564,022
     ($0.10 per share), respectively. The number of shares in-kind issued to
     satisfy dividend requirements was determined by dividing the calculated
     dividend amount by the Series A Preferred Stock liquidation preference
     amount of $2.00 per share.
 
     In March 1994 a Certificate of Designations was filed authorizing the
     issuance of 4,545,454 shares of mandatorily redeemable Series B Preferred
     Stock and the Company issued, to ten investors, an aggregate 2,424,896
     shares of Series B Preferred Stock in a private placement for net proceeds
     of $5,052,916, consisting of $4,865,916 of cash and a $187,000 conversion
     of a liability to one of its investors. Dividends of $0.22 per share per
     annum through September 30, 1994, $0.242 per share per annum from October
     1, 1994 through March 31, 1995, and $0.264 per share per annum thereafter,
     were payable in cash quarterly and were cumulative. At December 31, 1994,
     the Company had dividends in arrears totaling $503,285 which were
     subsequently paid in-kind.
 
     See Note 1 -- Company History and Description for a description of the
     effect of the Merger on such preferred stock.
 
5.   STOCK OPTIONS, WARRANTS AND SHARES RESERVED FOR FUTURE ISSUANCE
 
     STOCK OPTIONS
 
     Effective October 31, 1989, the Company established a qualified incentive
     employee stock option plan. Options granted in 1989 and 1990 have a term of
     ten years from the date of grant and vest 33 1/3% at the end of one year
     from the date defined in the stock option agreements, and 33 1/3% at the
     end of each of the two years thereafter. During December 1991 and 1993, the
     Company established additional qualified incentive employee stock option
     plans whereby granted options have a term of ten years from the date of
     grant and vest 20% at the end of one year from the date defined in the
     stock option agreement, and 20% at the end of each of the four years
     thereafter.
 
     During 1995, HBAC adopted the 1995 Performance Equity Plan (the Equity
     Plan). The Equity Plan provides for the grant of options to purchase shares
     of the Company's common stock to employees, officers, directors, and
     consultants of the Company and its subsidiaries, including IT. The Equity
     Plan authorizes the granting of awards (stock options, stock appreciation
     rights, restricted stock, deferred stock, stock reload options, and/or
     other stock-based awards, as defined), the exercise of which would allow up
     to an aggregate of 500,000 shares of the Company's common stock to be
     acquired. As of
 
                                      F-22
<PAGE>   89
 
                               SOURCE MEDIA, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
     December 31, 1995, there were options outstanding under the Equity Plan to
     purchase 141,001 shares of Common Stock at an exercise price of $10.37 per
     share.
 
     During September 1995, the Board of Directors of the Company adopted the
     1995 Nonqualified Stock Option Plan for Non-Employee Directors (the
     Directors' Plan), subject to approval by the Company's stockholders at the
     next annual meeting. The Directors' Plan provides for the automatic annual
     grant to each non-employee director of the Company an option to purchase
     3,000 shares of Common Stock. Options granted under the Directors' Plan
     have an exercise price equal to the fair market value of the Common Stock
     on the date of grant and will be exercisable at any time from the date of
     grant until the fifth anniversary thereof. The Directors' Plan provides for
     the grant of options to purchase up to 150,000 shares of Common Stock. As
     of December 31, 1995, there were options outstanding under the Directors'
     Plan to purchase 12,000 shares of Common Stock at an exercise price of
     $10.89 per share.
 
<TABLE>
<CAPTION>
                                                 OPTIONS     SHARES                     OPTION OR
                                                AVAILABLE     UNDER      AGGREGATE       EXERCISE
         EMPLOYEE STOCK OPTION ACTIVITY         FOR GRANT    OPTION        PRICE          PRICE
    -----------------------------------------   ---------    -------    -----------    ------------
    <S>                                         <C>          <C>        <C>            <C>
    Balance at December 31, 1992.............      36,327    172,582    $ 1,422,842    $0.74-$26.79
      Options authorized.....................     268,750         --             --
      Options granted........................     (90,408)    90,408      1,847,580      3.72-26.79
      Options exercised......................          --     (2,688)        (2,000)           0.74
      Options canceled.......................      12,465    (12,465)       (63,275)     0.74-26.79
                                                ---------    -------    -----------
    Balance at December 31, 1993.............     227,134    247,837      3,205,147      0.74-26.79
      Options authorized.....................          --         --             --
      Options granted........................     (70,816)    70,816      1,897,200           26.79
      Options exercised......................          --     (4,583)        (3,465)     0.74-26.79
      Options canceled.......................      45,324    (45,324)      (679,675)          26.79
                                                ---------    -------    -----------
    Balance at December 31, 1994.............     201,642    268,746      4,419,207      0.74-26.79
      Options authorized.....................     500,000         --             --
      Options repriced.......................          --         --     (2,449,709)
      Options granted........................    (220,586)   220,586      2,247,607      9.77-11.50
      Options exercised......................          --    (84,688)      (261,353)      0.74-3.72
      Options canceled.......................      56,035    (56,035)      (684,034)     9.77-26.79
      Options assumed canceled...............    (178,092)        --             --
                                                ---------    -------    -----------
    Balance at December 31, 1995.............     358,999    348,609    $ 3,271,708    $0.74-$11.50
                                                 ========    =======     ==========
</TABLE>
 
     As the Company does not intend to grant any additional options pursuant to
     the 1989 Plan, the 1991 Plan and the 1993 Plan, all remaining options
     available for grant under such plans are assumed to be canceled.
 
     In March 1995 the Board of Directors approved a reduction in the exercise
     price of certain of the Company's outstanding employee stock options. In
     total, 145,783 options with exercise prices of $14.88 and $26.79 per share
     were revised to an exercise price of $9.77 per share, which represented
     fair market value.
 
     Options representing 121,384 and 120,809 shares were exercisable at
     December 31, 1994 and 1995, respectively.
 
     WARRANTS
 
     At December 31, 1991, the Company had outstanding warrants to purchase
     78,373 shares of its common stock at $11.16 per share under an agreement
     dated February 1, 1991. The warrants are exercisable at any time up to the
     expiration date of February 1, 2001. These warrants were subsequently
     amended whereby the number of shares was increased to 83,085, and the
     exercise price was decreased to $10.79 per share.
 
                                      F-23
<PAGE>   90
 
                               SOURCE MEDIA, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
     In February 1992 the Company granted a warrant to purchase 10,079 shares of
     the Company's common stock, exercisable at $24.78 per share, to an
     individual in return for his guarantee of certain Company indebtedness,
     which has since been repaid. In February 1993 this warrant was amended to
     reduce the exercise price of the shares to $18.60 per share in return for
     an extension of the guarantee. This amended warrant is exercisable at any
     time up to the expiration date of February 10, 1998.
 
     On September 24, 1992, the Company's subsidiary, 997758, entered into an
     agreement with an individual to issue shares of 997758's nonvoting Class Y
     shares in exchange for Class A Subordinate Voting Shares and Class B
     Multiple Voting Shares of Cableshare owned by such individual. The
     individual has the right at any time through February 14, 2000, to exchange
     any or all of the Class Y shares of 997758 for up to an aggregate of
     206,376 shares of the Company's common stock. Each exercise of the exchange
     rights shall include at least Cdn $150,000 in value of Class Y shares of
     997758 being exchanged for the Company's common stock.
 
     During December 1992, the Company issued a warrant (the Hartford Warrant)
     to an insurance company to purchase 67,188 shares of common stock of the
     Company in connection with the purchase of $3,000,000 of convertible Senior
     Secured Notes, which were subsequently converted into common stock in 1993.
     The agreement entitled the warrant holder to exercise its warrant at an
     initial exercise price of $18.60 per share at any time up to the expiration
     date of December 21, 2002. The Hartford Warrant agreement provides for
     certain registration rights and the exercise price may be adjusted from
     time to time upon the occurrence of events enumerated in the agreement. As
     a result various events, the Hartford Warrant was adjusted to a per-share
     price of $10.50, and the number of shares issuable upon the exercise of
     such warrant was increased to 105,282.
 
     During December 1992 the Company issued a warrant (the Dublind Warrant) to
     an individual to purchase 94,063 shares of common stock of the Company in
     consideration for certain financial consulting services provided to the
     Company. The agreement entitled the warrant holder to exercise its warrant
     at an initial exercise price of $18.60 per share at any time up to the
     expiration date of December 21, 2002. The Dublind Warrant agreement
     provides for certain registration rights and the exercise price may be
     adjusted from time to time upon the occurrence of events enumerated in the
     agreement. As a result of various events, the Dublind Warrant was adjusted
     to a per-share price of $10.50, and the number of shares issuable upon the
     exercise of such warrant was increased to 147,394.
 
     As consideration for participation of certain of its partners on an
     advisory committee through March 31, 1995, a Series B Preferred Stock
     holder received warrants (the Advisory Warrants) to purchase an aggregate
     322,500 shares of the Company's common stock. The warrants were exercisable
     at prices and times depending upon an initial public offering of the
     Company's common stock, or conversion of the Company's Series B Preferred
     Stock. As a result of the issuance of these warrants, the Company recorded
     approximately $456,000 in selling, general, and administrative expenses in
     the year ended December 31, 1994.
 
     In January 1995, in connection with one of the 1995 Loan Agreements,
     certain of the Lenders received warrants (the 1995 Warrants) to purchase an
     aggregate of 645,000 shares of the Company's common stock. GKN Securities
     Corp., the broker of the 1995 Loan Agreements, received $140,000 and
     warrants (the GKN Warrants) to purchase an aggregate of 75,250 shares of
     the Company's common stock. In May 1995, certain of the Lenders agreed to
     cancel the Advisory Warrants and certain of the 1995 Warrants allowing for
     the purchase of an aggregate of 268,750 shares of the Company's common
     stock, in exchange for the issuance of warrants (the Funding Warrants) to
     purchase, either by the tendering of cash or shares of the Company's common
     stock, up to 1,034,687 shares of the Company's common stock at an exercise
     price of $7.44 per share, subject to adjustment for antidilution. The
     remaining 1995 Warrants not converted into Funding Warrants, providing for
     the purchase of 376,250 shares of Common Stock, as well as the GKN
     Warrants, were converted into warrants for the purchase of shares of the
 
                                      F-24
<PAGE>   91
 
                               SOURCE MEDIA, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
     Company's common stock at an exercise price of $11.00 per share through
     June 2000, which may be redeemed by the Company at a price of $0.01 per
     warrant upon 30 days' notice at any time in the event that the best sales
     price of the common stock is at least $20.00 per share for 20 consecutive
     trading days ending on the third day prior to the date on which notice of
     redemption is given (the Public Warrants). The Funding Warrants and the
     Public Warrants contain provisions providing for certain registration
     rights.
 
     On July 13, 1995 the Company entered into an agreement with Hackman, Baring
     & Co., Incorporated, a stockholder of the Company owned equally by Rhodric
     Hackman and John Baring, directors of the Company, whereby Hackman, Baring
     & Co., Incorporated was engaged for a six-month period to act as advisor to
     the Company in connection with investor relations and future financings. In
     connection with the public offering of the common stock in December 1995,
     the Company issued in the first quarter of 1996 to Hackman, Baring & Co.,
     Incorporated warrants to purchase 25,000 shares of the Company's common
     stock at an exercise price of $11.00 per share, at any time up to June 23,
     2000, on which date the warrants will expire. Such warrants have piggyback
     registration rights and the value of the warrants is de minimis.
 
     At the time of the Merger, HBAC had reserved for issuance 1,903,302 shares
     of common stock for various outstanding warrants, including Public Warrants
     for the purchase of 1,875,000 shares of the Company's common stock. The
     remaining HBAC warrants are exercisable at prices of $10.60 - $11.00 each
     through June 1998.
 
     SHARES RESERVED FOR FUTURE ISSUANCE
 
     As of December 31, 1995, 4,824,313 common shares were reserved for future
     issuance, as follows:
 
<TABLE>
<CAPTION>
                                                                                    NUMBER OF
    SECURITY                                                                     RESERVED SHARES
    --------                                                                     ---------------
    <S>                                                                          <C>
    Public Warrants..........................................................       2,326,500
    Other warrants...........................................................       1,433,829
    Employee and director stock options......................................         857,608
    997758 Class Y Stock put rights..........................................         206,376
                                                                                    ---------
                                                                                    4,824,313
                                                                                    =========
</TABLE>
 
6.   NOTES RECEIVABLE FROM STOCKHOLDERS
 
     In 1993 the Company made a loan, bearing interest at a rate of 10% per
     annum, of $770,000 to a director and stockholder. Unpaid principal and
     interest were due May 31, 1995. The director used the proceeds to exercise
     an option representing 77,400 shares of common stock. In December 1993, the
     director and stockholder paid the note receivable of $770,000 plus accrued
     interest of $30,000. In consideration for paying this note prior to the due
     date, the Company forgave $15,000 of accrued interest. In addition, the
     Company agreed to pay the director and stockholder $15,000 per month for 24
     months, in the aggregate $360,000, of which approximately 31% was related
     to a note discount and 69% was related to compensation to the director and
     stockholder for an option which had terminated. In 1993 the Company
     recorded $341,000 of charges related to financing incentives representing
     the forgiveness of interest and the discounted value of the monthly
     payments to the director and stockholder, as discussed in Note 9 -- Charges
     Related to Financing Incentives.
 
     On May 20, 1993, the Company loaned $750,000 to the individual holding
     Class Y shares of 997758, which note is secured by the individual's
     holdings in 997758 and bears interest at a rate per annum of 2%, payable
     quarterly. The unpaid principal and interest become due on May 20, 2000.
     The Company recorded a discount of $292,000 to reflect the difference
     between the actual interest rate and a reasonable
 
                                      F-25
<PAGE>   92
 
                               SOURCE MEDIA, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
     market rate (10%) and increased goodwill accordingly. The note and accrued
     interest are reflected as a reduction of minority interests in the
     accompanying consolidated balance sheet.
 
     On June 30, 1993, the Company loaned $50,000 to an officer, director, and
     stockholder. This loan is evidenced by a nonrecourse promissory note, as
     amended, and bears interest at the rate of 10% per annum, with the
     principal amount and accrued interest due and payable on May 31, 1997.
     Payment of the note is secured by a pledge of 6,719 shares of common stock.
     Amounts outstanding, including accrued interest, are included in
     stockholders' equity (capital deficiency) in the accompanying consolidated
     balance sheets.
 
     In May 1995, the Company loaned $225,000 to an officer and stockholder.
     Such loan is evidenced by a nonrecourse promissory note bearing interest at
     the rate of 10% per annum, with principal and accrued interest due May 31,
     1997. Payment of the note is secured by a pledge of 24,188 shares of the
     Company's common stock. Subsequent to year end, the officer and stockholder
     repaid the note and all accrued interest through a surrender of common
     stock with a fair market value equal to the outstanding note and accrued
     interest as of the date of repayment.
 
7.   LEASES
 
     The Company leases office space and various office equipment under
     operating leases. Rent expense was $346,305, $522,093, and $508,349 for the
     years ended December 31, 1993, 1994, and 1995, respectively.
 
     The Company leases certain production equipment under capital leases having
     effective interest rates ranging from 3.7% to 21%, with lease terms that
     expire through 1997. Assets recorded under capital leases were $454,198 at
     December 31, 1994 and 1995. Accumulated amortization related to these
     assets was $111,796 and $197,561 at December 31, 1994 and 1995,
     respectively.
 
8.   INCOME TAXES
 
     At December 31, 1995, the Company had net operating loss carryforwards of
     approximately $28.8 million for United States income tax purposes, that
     expire in 2003 through 2010, which may be used to reduce future United
     States taxable income and tax liabilities.
 
                                      F-26
<PAGE>   93
 
                               SOURCE MEDIA, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
     Deferred income taxes reflect the net tax effects of temporary differences
     between the carrying amounts of assets and liabilities for financial
     reporting purposes and the amounts reported for income tax purposes.
     Significant components of the Company's deferred tax liabilities and assets
     as of December 31 are as follows:
 
<TABLE>
<CAPTION>
                                                                     1994            1995
                                                                  -----------     -----------
    <S>                                                           <C>             <C>
    Deferred tax liabilities:
    Tax over book depreciation................................    $  (119,012)    $   (92,502)
    Other, net................................................             --        (302,394)
                                                                  ------------    ------------
    Total deferred tax liabilities............................       (119,012)       (394,896)
    Deferred tax assets:
      Net operating loss carryforwards........................      8,751,919      12,386,189
      Investment tax credits..................................      3,337,000       3,431,000
      Unearned income.........................................      1,776,128       1,555,418
      Accrued compensation....................................        302,540         342,160
      Accrued expenses........................................        150,197          53,754
      Other, net..............................................         28,402          37,729
                                                                  ------------    ------------
    Total deferred tax assets.................................     14,346,186      17,806,250
    Valuation allowance for deferred tax assets...............    (14,227,174)    (17,411,354)
                                                                  ------------    ------------
      Net of valuation allowance..............................        119,012         394,896
                                                                  ------------    ------------
    Net deferred tax asset....................................    $        --     $        --
                                                                  ============    ============
</TABLE>
 
     During the years ended December 31, 1994 and 1995, the Company's valuation
     allowance for deferred tax assets increased $2,911,168 and $3,184,180,
     respectively.
 
     The Tax Reform Act of 1986 imposes limitations on the use of net operating
     loss carryforwards if certain stock ownership changes occur. As a result of
     the Merger, an ownership change occurred that will cause the Company's
     utilization of net operating losses to be limited to approximately $3.5
     million in a given year.
 
     At December 31, 1995, Cableshare had net operating loss carryforwards for
     Canadian income tax purposes of approximately Cdn $9.1 million, expiring in
     1998 through 2001, which may be used to reduce future Canadian taxable
     income and tax liabilities of Cableshare. Cableshare also has available at
     December 31, 1995, subject to Revenue Canada's review, investment tax
     credits totaling Cdn $4.7 million, expiring in 1997 through 2003. In 1994,
     Cableshare was reassessed by Revenue Canada for 1988, reducing investment
     tax credits available to offset income taxes otherwise payable in future
     years by Cdn $1,900,000 and requiring repayment of Cdn $315,000 of such
     credits which had been received, together with interest of Cdn $295,000.
     Cableshare disputes this reassessment and intends to vigorously defend
     itself against this action; however, such amounts have been recorded as a
     liability in Cableshare's financial statements.
 
     At December 31, 1995, Cableshare had net operating loss carryforwards for
     Ontario Provincial income tax purposes of approximately Cdn $9.6 million,
     expiring in 1998 through 2002, which may be used to reduce future Ontario
     taxable income and tax liabilities of Cableshare.
 
     At December 31, 1995, Cableshare, related to its wholly owned United States
     subsidiary, had net operating loss carryforwards for United States income
     tax purposes of approximately $415,000, expiring in 2005 through 2006,
     which may be used to reduce future United States taxable income and tax
     liabilities of the subsidiary.
 
                                      F-27
<PAGE>   94
 
                               SOURCE MEDIA, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
     The following table accounts for the difference between the actual tax
     provisions and the amounts obtained by applying the U.S. federal statutory
     rates to the net loss:
 
<TABLE>
<CAPTION>
                                                         1993           1994           1995
                                                      ----------     ----------     ----------
    <S>                                               <C>            <C>            <C>
    Tax benefit at statutory rate.................    $(3,372,275)   $(4,371,455)   $(3,321,547)
    Increase in taxes resulting from:
      Benefit of U.S. tax loss not recognized.....      2,235,543      2,956,832      2,789,900
      Foreign losses on which a tax benefit could
         not be recognized........................         51,576        205,000        172,875
      Nondeductible amortization and write-down of
         intangible assets........................        522,119          9,866        350,655
      Nondeductible expenses on which tax benefit
         cannot be recognized.....................        563,037      1,199,757          8,117
                                                      -----------    -----------    -----------
      Actual tax provision........................    $       --     $       --     $       --
                                                      ===========    ===========    ===========
</TABLE>
 
9.   CHARGES RELATED TO FINANCING INCENTIVES
 
     During April 1993 the Company recorded charges related to financing
     incentives of $1,523,000 resulting from inducements made to, and accepted
     by, certain security holders to convert their securities into common stock
     of the Company at conversion rates more favorable than the respective
     conversion rates provided in the securities. At that time, $4,436,000 in
     debt was converted, and warrants for 29,831 shares and options for 77,400
     shares, with an aggregate price of approximately $878,000, were exercised
     for 619,408 shares of the Company's common stock.
 
<TABLE>
<CAPTION>
                                                        PRINCIPAL                                                 CHARGES
                                                         BALANCE       INCENTIVE       SHARES       AGGREGATE    RELATED TO
                                                       PLUS ACCRUED     SHARES      CONVERTED OR    EXERCISE     FINANCING
                                                         INTEREST       OFFERED      EXERCISED        PRICE      INCENTIVES
                                                       ------------    ---------    ------------    ---------    ----------
     <S>                                               <C>             <C>          <C>             <C>          <C>
     Convertible Notes..............................    $3,419,000      119,621        608,247      $     --     $  957,000
     Notes payable to related parties...............     1,017,000          990        344,640            --          8,000
     Stock options and warrants.....................            --       33,250        199,500       878,000        558,000
                                                        ----------      -------      ---------      --------     ----------
                                                        $4,436,000      153,861      1,152,387      $878,000     $1,523,000
                                                        ==========      =======      =========      ========     ==========
</TABLE>
 
     Had this conversion taken place on January 1, 1993, the effect would have
     been to decrease the Company's 1993 net loss per common share to $2.51.
 
     As part of the conversion of $2,700,000 of the Convertible Notes, the
     Company agreed to pay the former holders thereof, including a director and
     stockholder, equivalent interest (the Equivalent Interest) of approximately
     $81,000 per quarter, until such time as the Company effected a public
     offering of its common stock. In December 1993 the Company recorded charges
     related to financing incentives of $162,000 associated with such equivalent
     interest payments to the former holders of Convertible Notes. For the years
     ended December 31, 1994, and 1995, the Company recorded additional
     equivalent interest payments in the amounts of $256,500 and $162,000,
     respectively. Such amounts are included in interest expense in the
     accompanying consolidated financial statements.
 
     In December 1993 the Company recorded charges related to financing
     incentives of $341,000 related to payment of a $770,000 note receivable
     from a director and stockholder prior to the original due date as discussed
     in Note 6 -- Notes Receivable from Stockholders.
 
                                      F-28
<PAGE>   95
 
                               SOURCE MEDIA, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
10. COMMITMENTS AND CONTINGENCIES
 
     Various noteholders, warrant holders, stockholders, and the holder of Class
     Y shares of 997758 have registration rights, under certain conditions,
     which may require the Company to file a registration statement.
 
     In February 1996, the Company entered into an agreement with Cableshare
     which grants to the Company the exclusive right to market Cableshare's
     patents and software in the deployment and operation of the Interactive
     Channel for a one-year period, renewable annually upon the mutual agreement
     of the parties. The license also commits Cableshare to develop a new
     set-top box, a UNIX-based headend and user-friendly applications and
     production system. The Company will pay $4.75 million for the development
     projects, of which $2.9 million has already been paid through March 15,
     1996, and Cableshare will receive an agreed payment for equipment sold as a
     result of the Company's marketing of the Interactive Channel. The new
     license replaces the Company's obligation under the previous license to
     make payments and achieve subscriber levels.
 
     In January 1994 a former officer and director and significant stockholder
     of Cableshare and certain of his relatives, who are also stockholders of
     Cableshare, filed a lawsuit in Ontario, Canada in the Ontario Court
     (General Division) against the Company and several of its officers
     individually, two of whom have served on the Board of Directors of
     Cableshare. The plaintiffs are seeking, among other things, Cdn $8,000,000
     in damages for reduced value of their holdings of Cableshare stock, caused
     by the actions of the defendants and Cdn $6,000,000 in damages for losses
     of stock options caused by the actions of the defendants. Also in January
     1994, the former officer and director of Cableshare filed a claim of
     wrongful termination, seeking Cdn $350,000 in damages. Although the
     ultimate outcome of these actions cannot be determined at this time,
     management believes the claims are without merit and intends to vigorously
     defend its positions. In addition, management believes the ultimate outcome
     of these actions will not have a material impact on the consolidated
     financial condition or results of operations of the Company.
 
     Prior to December 31, 1994, Cableshare notified GTE that GTE may be
     infringing on one or more of Cableshare's U.S. patents. In March 1995, GTE
     filed an action in U.S. District Court seeking a declaratory judgment that,
     among other things, GTE did not infringe upon Cableshare's patents and that
     Cableshare's patents are invalid. On June 1, 1995, Cableshare filed an
     action in United States District Court alleging that GTE is infringing
     Cableshare's patents. In January 1996, GTE and the Company agreed in
     principle to a settlement that would resolve this litigation. Currently,
     the tentative settlement would involve a license, for a fee, of the
     Cableshare United States patents in connection with the dismissal of the
     lawsuits. There can be no assurances that the parties will execute
     settlement documents or that these lawsuits will be finally dismissed. If
     these lawsuits are not dismissed, management believes the GTE claims are
     without merit and intends to vigorously support Cableshare in defending
     Cableshare's position. In addition, management believes that the outcome of
     these actions will not have a material impact on the consolidated financial
     condition or results of operations of the Company. See Note 2 --
     Significant Accounting Policies: Unaudited Financial Information.
 
     The Company is party to ordinary routine litigation and other claims
     incidental to its business, none of which is expected to have a material
     adverse effect on the Company's results of operations or financial
     position.
 
11. CONCENTRATION OF CREDIT RISK AND MAJOR CUSTOMERS AND RBOC CANCELLATION
 
     The Company performs ongoing credit evaluations of its customers and does
     not require collateral. Overall, concentrations of credit risk with respect
     to receivables, except for the customers discussed below, are limited
     because of the large number of customers in the Company's customer base,
     the relatively small dollar amount of individual customer balances and
     their dispersion across many different industries and geographic areas. The
     Company maintains reserves for potential credit losses, and such
 
                                      F-29
<PAGE>   96
 
                               SOURCE MEDIA, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
     losses have been within management's expectations. For the years ended
     December 31, 1994 and 1995, no customer accounted for greater than 10% of
     monetary revenues, except as discussed below. As of December 31, 1994 and
     1995, no customer represented more than 10% of the Company's accounts
     receivable, except as discussed below.
 
     In April 1995, an RBOC, Ameritech Advertising Services (Ameritech),
     terminated its agreement with the Company which allowed the Company to
     distribute information regarding its interactive telephone service through
     the Ameritech's Yellow Pages product. By letter dated December 1995,
     Ameritech informed the Company that the Company would not be required to
     provide services to Ameritech after February 1, 1996. On February 5, 1996,
     the Company filed suit against Ameritech in District Court in Dallas,
     Texas, alleging, among other claims, that Ameritech breached its agreement
     with the Company, that Ameritech converted property and business owned by
     the Company and that Ameritech breached its fiduciary responsibility to the
     Company. During 1994 and 1995, the Company generated approximately
     $1,827,000 and $1,898,000 in monetary revenues, or 22% and 20%,
     respectively, of total monetary revenues for 1994 and 1995, and
     approximately $6,482,000 and $5,975,000 in nonmonetary revenues, or 29% and
     37%, respectively, of total nonmonetary revenues for 1994 and 1995, through
     contracts with advertisers and media sponsors related to sponsorships of
     the Company's printed menu of audiotext topics distributed in the
     Ameritech's Yellow Pages.
 
     During 1994 and 1995, the Company generated approximately $764,000 and
     $1,084,000 in monetary revenues, or 9% and 12%, respectively, of total
     monetary revenues for 1994 and 1995, through sales of services called
     Consumer Tips to Ameritech. As of December 31, 1994 and 1995, balances due
     from Ameritech represented 15% and 24% of the Company's accounts
     receivable, respectively.
 
12. SEGMENT REPORTING
 
     For financial reporting purposes, the Company operates in two business
     segments:
 
     On-line telephone -- The Company's On-Line Telephone Business provides
     advertiser-sponsored interactive programming via the telephone in markets
     throughout the United States.
 
     On-line television -- The Company's on-line television product, the
     Interactive Channel, is designed to provide a broad range of interactive
     programming via the television.
 
     Corporate assets consist primarily of cash and cash equivalents.
 
                                      F-30
<PAGE>   97
 
                               SOURCE MEDIA, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
     The following are operating results and certain other information by
     business segment:
 
<TABLE>
<CAPTION>
                                                                   YEAR ENDED DECEMBER 31,
                                                               --------------------------------
                                                                1993         1994        1995
                                                               -------     --------     -------
                                                                        (in thousands)
    <S>                                                        <C>         <C>          <C>
    Net revenues:
      On-line telephone....................................    $25,122     $ 30,093     $25,283
      On-line television...................................         61          850           3
                                                               -------     --------     -------
                                                               $25,183     $ 30,943     $25,286
                                                               =======     ========     =======
      Operating loss:
      On-line telephone....................................    $(3,237)    $ (2,633)    $  (756)
      On-line television...................................     (2,172)      (6,659)     (5,819)
      Corporate expenses...................................     (2,396)      (2,039)     (1,753)
                                                               -------     --------     -------
                                                               $(7,805)    $(11,331)    $(8,328)
                                                               =======     ========     =======
    Identifiable assets:
      On-line telephone....................................    $ 5,945     $  4,363     $ 4,120
      On-line television...................................      6,068        3,729       2,596
      Corporate assets.....................................      1,235          127      17,479
                                                               -------     --------     -------
                                                               $13,248     $  8,219     $24,195
                                                               =======     ========     =======
    Depreciation and amortization:
      On-line telephone....................................    $   342     $    470     $   458
      On-line television...................................      1,790        1,943       1,374
                                                               -------     --------     -------
                                                               $ 2,132     $  2,413     $ 1,833
                                                               =======     ========     =======
    Additions to property and equipment:
      On-line telephone....................................    $   881     $    300     $    17
      On-line television...................................        448          217         241
                                                               -------     --------     -------
                                                               $ 1,329     $    517     $   258
                                                               =======     ========     =======
</TABLE>
 
                                      F-31
<PAGE>   98
 
                               SOURCE MEDIA, INC.
 
             NOTES TO CONSOLIDATED FINANCIAL STATEMENTS (CONTINUED)
 
     Foreign net revenues, operating loss, and identifiable assets of all
     consolidated foreign subsidiaries located outside the United States and its
     territories, and possessions as of and for the years ended December 31,
     1993, 1994, and 1995, are as follows:
 
<TABLE>
<CAPTION>
                                                   YEAR ENDED DECEMBER 31,
                                             --------------------------------
                                               1993         1994        1995
                                             -------     --------     -------
                                                      (in thousands)
    <S>                                      <C>         <C>          <C>
    Net revenues:
      United States......................... $25,123     $ 30,098     $25,286
      Canada................................      60          845          --
      Transfers between geographic areas....   1,104          665       2,423
      Adjustments and eliminations..........  (1,104)        (665)     (2,423)
                                             -------     --------     -------
                                             $25,183     $ 30,943     $25,286
                                             =======     ========     =======
    Operating loss:
      United States......................... $(5,633)    $ (6,955)    $(7,069)
      Canada................................  (1,960)      (2,940)       (508)
      Adjustments and eliminations..........    (212)      (1,436)       (751)
                                             -------     --------     -------
                                             $(7,805)    $(11,331)    $(8,328)
                                             =======     ========     =======
    Identifiable assets:
      United States......................... $ 7,197     $  5,150     $21,402
      Canada................................   6,051        3,069       2,793
                                             -------     --------     -------
                                             $13,248     $  8,219     $24,195
                                             =======     ========     =======
</TABLE>
 
                                      F-32
<PAGE>   99
 
                                AUDITORS' REPORT
 
To the Board of Directors of
  CABLESHARE INC.
 
     We have audited the consolidated balance sheets of Cableshare Inc. as at
March 31, 1995 and March 31, 1996 and the consolidated statements of earnings,
deficit and changes in financial position for each of the three years in the
period ended March 31, 1996. These financial statements are the responsibility
of the company's management. Our responsibility is to express an opinion on
these financial statements based on our audit.
 
     We conducted our audit in accordance with generally accepted auditing
standards. Those standards require that we plan and perform an audit to obtain
reasonable assurance whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
 
     In our opinion, these consolidated financial statements present fairly, in
all material respects, the financial position of the company as at March 31,
1995 and March 31 1996 and the results of its operations and changes in its
financial position for each of the three years in the period ended March 31,
1996 in accordance with generally accepted accounting principles.
 
KPMG
Chartered Accountants
 
London, Canada
May 23, 1996
 
                      COMMENTS BY AUDITOR FOR U.S. READERS
                      ON CANADA-U.S. REPORTING DIFFERENCE
 
     In the United States, reporting standards for auditors require the addition
of an explanatory paragraph (following the opinion paragraph) when the financial
statements are affected by conditions and events that cast substantial doubt on
the company's ability to continue as a going concern, such as those described in
Note 1 to the financial statements. Our report to the Board of Directors dated
May 23, 1996 is expressed in accordance with Canadian reporting standards which
do not permit a reference to such events and conditions in the auditors' report
when these are adequately disclosed in the financial statements.
 
KPMG
Chartered Accountants
 
London, Canada
May 23, 1996
 
                                      F-33
<PAGE>   100
 
                                CABLESHARE INC.
 
                          CONSOLIDATED BALANCE SHEETS
                               (CANADIAN DOLLARS)
 
<TABLE>
<CAPTION>
                                                                       AS AT
                                                      ----------------------------------------
                                                              MARCH 31,
                                                      -------------------------
                                                         1995           1996        SEPT. 30,
                                                      ----------     ----------        1996
                                                                                    ----------
                                                                                    (Unaudited)
<S>                                                   <C>            <C>            <C>
ASSETS
Current Assets
  Cash and term deposits..........................    $   36,280     $  306,499     $  398,932
  Accounts receivable.............................       325,636        680,655        494,464
  Inventory.......................................        17,089        102,062          7,982
  Prepaid expenses................................        70,364        342,439        151,366
                                                      ----------     ----------     ----------
                                                         449,369      1,431,655      1,052,744
                                                      ----------     ----------     ----------
Equipment (note 3)
  Cost............................................     2,379,499      2,658,746      2,853,608
  Less accumulated depreciation...................     1,766,898      2,037,340      2,242,036
                                                      ----------     ----------     ----------
                                                         612,601        621,406        611,572
                                                      ----------     ----------     ----------
                                                      $1,061,970     $2,053,061     $1,664,316
                                                      ==========     ==========     ==========
LIABILITIES AND SHAREHOLDERS' EQUITY (DEFICIT)
Current liabilities
  Account payable and accrued liabilities.........    $  560,937     $1,687,353     $1,443,353
  Unearned revenue................................        10,500         78,200         20,202
  Income taxes payable (note 4)...................       710,431        782,079        816,593
  Current portion of capital lease obligations
     (note 5).....................................        44,086         58,078         41,715
                                                      ----------     ----------     ----------
                                                       1,325,954      2,605,710      2,321,863
                                                      ----------     ----------     ----------
Capital lease obligations (note 5)................        47,334         42,363         37,389
Shareholders' equity (deficit)
  Capital stock (note 6)..........................     8,462,606      8,462,606      8,569,896
  Deficit.........................................    (8,793,479)    (8,977,852)    (9,184,536)
  Foreign currency translation adjustment.........        19,555        (79,766)       (80,296)
                                                      ----------     ----------     ----------
                                                        (311,318)      (595,012)      (694,936)
Contingencies (note 7)
Commitment (note 8)
                                                      ----------     ----------     ----------
                                                      $1,061,970     $2,053,061     $1,664,316
                                                      ==========     ==========     ==========
</TABLE>
 
          See accompanying notes to Consolidated Financial Statements.
 
                                      F-34
<PAGE>   101
 
                                CABLESHARE INC.
 
                      CONSOLIDATED STATEMENTS OF EARNINGS
                               (CANADIAN DOLLARS)
 
<TABLE>
<CAPTION>
                                                                          SIX MONTHS ENDED SEPT.
                                          YEARS ENDED MARCH 31,                    30,
                                   -----------------------------------    ----------------------
                                     1994         1995         1996         1995         1996
                                   ---------    ---------    ---------    ---------    ---------
                                                                               (unaudited)
<S>                                <C>          <C>          <C>          <C>          <C>
Revenue
  Software development, systems
     and support.................. $1,958,560   $1,285,486   $3,986,384   $1,638,786   $2,821,386
  Royalty and licensing...........     16,000    1,408,497      544,000            0            0
                                   ------------ ------------ ------------ ------------ ------------
                                    1,974,560    2,693,983    4,530,384    1,638,786    2,821,386
                                   ------------ ------------ ------------ ------------ ------------
Expenses
  Research and development........  1,097,355      687,871    2,061,276      817,389    1,622,806
  Costs of goods..................    538,237      136,177       13,344       13,344      300,348
  Operating and administration....    499,646    2,543,815    2,614,763      804,896    1,104,916
                                   ------------ ------------ ------------ ------------ ------------
                                    2,135,238    3,367,863    4,689,383    1,635,629    3,028,070
                                   ------------ ------------ ------------ ------------ ------------
Income (Loss) before income
  taxes...........................   (160,678)    (673,880)    (158,999)       3,157     (206,684)
Income taxes (note 4).............          0       49,068       25,374            0            0
                                   ------------ ------------ ------------ ------------ ------------
Income (Loss) for the period......   (160,678)    (722,948)    (184,373)       3,157     (206,684)
                                   ============ ============ ============ ============ ============
Income (Loss) per share........... $    (0.01)   $   (0.05)   $   (0.01)   $    0.00    $   (0.01)
</TABLE>
 
                                CABLESHARE INC.
 
                       CONSOLIDATED STATEMENTS OF DEFICIT
                               (CANADIAN DOLLARS)
 
<TABLE>
<CAPTION>
                                                                          SIX MONTHS ENDED SEPT.
                                          YEARS ENDED MARCH 31,                    30,
                                   -----------------------------------    ----------------------
                                     1994         1995         1996         1995         1996
                                   ---------    ---------    ---------    ---------    ---------
<S>                                <C>          <C>          <C>          <C>          <C>
Deficit, beginning of period....   $7,909,853   $8,070,531   $8,793,479   $8,793,479   $8,977,852
Loss (income) for the period....      160,678      722,948      184,373       (3,157)     206,684
                                   ----------   ----------   ----------   ----------   ----------
Deficit, end of period..........   $8,070,531   $8,793,479   $8,977,852   $8,790,322   $9,184,536
                                   ==========   ==========   ==========   ==========   ==========
</TABLE>
 
          See accompanying notes to Consolidated Financial Statements
 
                                      F-35
<PAGE>   102
 
                                CABLESHARE INC.
 
            CONSOLIDATED STATEMENTS OF CHANGES IN FINANCIAL POSITION
                               (CANADIAN DOLLARS)
 
<TABLE>
<CAPTION>
                                                                             SIX MONTHS ENDED SEPT.
                                             YEARS ENDED MARCH 31,                    30,
                                      -----------------------------------    ----------------------
                                        1994         1995         1996         1995         1996
                                      ---------    ---------    ---------    --------     ---------
                                                                                  (unaudited)
<S>                                   <C>          <C>          <C>          <C>          <C>
Cash provided by (used in)
Operations
  Income (loss) for the period....... $(160,678)   $(722,948)   $(184,373)   $  3,157     $(206,684)
  Items not involving cash:
     Depreciation....................   212,500      269,892      272,789     105,174       204,696
     Gain (loss) on disposal of
       equipment.....................   (15,090)           0       21,464           0             0
  Change in non-cash operating
     working capital.................  (200,503)     660,177      553,697     (26,561)      203,860
                                      ---------    ---------    ---------    ---------    ---------
                                       (163,771)     207,121      663,577      81,770       201,872
                                      ---------    ---------    ---------    ---------    ---------
Investments
  Additions to equipment.............   (44,293)    (492,333)    (304,778)    (47,847)     (194,862)
  Proceeds from disposal of
     equipment.......................    20,295            0        1,720           0             0
                                      ---------    ---------    ---------    ---------    ---------
                                        (23,998)    (492,333)    (303,058)    (47,847)     (194,862)
                                      ---------    ---------    ---------    ---------    ---------
Financing
  Proceeds of capital leases.........         0      115,372       44,293      12,444        11,981
  Repayment of capital leases........         0      (23,952)     (35,272)    (27,265)      (33,318)
  Issue of capital stock.............   128,047        2,755            0           0       107,290
                                      ---------    ---------    ---------    ---------    ---------
                                        128,047       94,175        9,021     (14,821)       85,953
                                      ---------    ---------    ---------    ---------    ---------
Increase (decrease) in cash..........   (59,722)    (191,037)     369,540      19,102        92,963
Effect of currency translation on
  cash flow..........................    32,620        9,708      (99,321)        (18)         (530)
                                      ---------    ---------    ---------    ---------    ---------
                                        (27,102)    (181,329)     270,219      19,084        92,433
Cash and term deposits, beginning of
  period.............................   244,711      217,609       36,280      36,280       306,499
                                      ---------    ---------    ---------    ---------    ---------
Cash and term deposits, end of
  period............................. $ 217,609    $  36,280    $ 306,499    $ 55,364     $ 398,932
                                      =========    =========    =========    =========    =========
</TABLE>
 
          See accompanying notes to Consolidated Financial Statements
 
                                      F-36
<PAGE>   103
 
                   NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
 
                               (CANADIAN DOLLARS)
 
1.   BASIS OF PRESENTATION AND ECONOMIC DEPENDENCE
 
     These financial statements have been prepared on the basis of accounting
     principles generally accepted in Canada as applicable to a going concern.
     The company's future operations will depend on its ability to generate
     revenue, equity financing or support from various sources, including its
     parent company, IT Network, Inc., of Dallas, Texas, during the coming
     fiscal year to cover its operating expenditures.
 
     The company earned revenue of $3,986,384 during 1996 (1995, $2,027,000;
     1994, $1,390,000) from the sale of hardware, software licensing and
     development agreements to IT Network, Inc. and was charged $57,030 during
     1996 (1995, $74,000; 1994, $0) by IT Network, Inc. for expense
     reimbursements. At March 31, 1996, the accounts receivable included a
     balance owing from IT Network, Inc. of $109,953 (1995, $274,231). All
     transactions with IT Network, Inc. were undertaken at prevailing market
     rates.
 
2.   SIGNIFICANT ACCOUNTING POLICIES
 
     The Company's main activity is research and development of technology in
     the field of interactive television and related areas.
 
     The accompanying financial statements are prepared in accordance with
     generally accepted accounting principles in Canada, are stated in Canadian
     dollars, and conform in all material respects to generally accepted
     accounting principles in the United States. The consolidated financial
     statements for the six months ended September 30, 1996 and 1995 are
     unaudited, but in the opinion of management reflect all adjustments,
     consisting of normal recurring accruals, which are necessary for a fair
     presentation of the financial position, results of operations, and changes
     in financial position for the interim periods presented.
 
     (a)  PRINCIPLES OF CONSOLIDATION
 
        The consolidated financial statements include the accounts of Cableshare
        Inc. and its wholly-owned subsidiaries.
 
     (b)  FOREIGN CURRENCY TRANSLATION
 
        The subsidiaries located in the United States, the Netherlands and
        Barbados are considered to be self-sustaining operations. Their
        financial statements are translated to Canadian currency as follows:
 
        (i)   assets and liabilities at the rate of exchange on the balance
             sheet date;
 
        (ii)  revenue and expense items at rates in effect during the year; and,
 
        (iii) the resulting exchange gains and losses are deferred and included
             as a separate component of shareholders' equity.
 
     (c)  INVENTORY
 
        Inventory is carried at the lower of cost and net realizable value.
 
                                      F-37
<PAGE>   104
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
                               (CANADIAN DOLLARS)
 
     (d)  EQUIPMENT
 
        Equipment is stated at cost. Depreciation is provided on the
        straightline basis for data processing equipment, research equipment,
        and rental systems and on the declining balance basis for office
        equipment and demonstration equipment, using the following annual rates:
 
<TABLE>
<CAPTION>
         ASSET                                                                        RATE
         -----                                                                        ----
         <S>                                                                        <C>
         Data processing equipment..............................................         15%
         Research equipment.....................................................    15 - 25%
         Office equipment.......................................................         20%
         Demonstration equipment................................................         20%
         Rental Systems.........................................................         40%
</TABLE>
 
     (e)  REVENUE
 
        Revenue from the sale of goods and services is recognized upon the
        delivery of the goods and rendering of the services. Revenue from the
        licensing of software is recognized upon delivery where the company has
        no significant continuing obligations, and otherwise upon the earlier of
        acceptance by the customer or discharge of all significant obligations.
        Upon recognition of revenue from the licensing of software, the
        estimated cost of remaining obligations, which are not significant, is
        accrued. Advance payments by customers are recorded as deferred revenue
        until earned.
 
     (f)  INVESTMENT TAX CREDITS
 
        As a high technology company, Cableshare is entitled by law to use
        various investment tax credits to reduce federal income taxes which
        would be otherwise payable. Such credits are related to amounts expended
        for qualified scientific research and development, including equipment
        related thereto. The investment tax credits earned and utilized during
        the year are reflected as reductions of the related expense and
        equipment.
 
3.   EQUIPMENT
 
<TABLE>
<CAPTION>
                                                                                1996         1995
                                                             ACCUMULATED      NET BOOK     NET BOOK
                                                 COST        DEPRECIATION      VALUE        VALUE
                                               ---------     ------------     --------     --------
    <S>                                        <C>           <C>              <C>          <C>
    Data processing equipment..............   $  427,334      $   407,676     $ 19,658     $ 11,832
    Research equipment.....................    1,214,920          901,601      313,319      267,767
    Office equipment.......................      588,817          465,431      123,386      137,342
    Demonstration equipment................      223,852          164,612       59,240       72,607
    Rental Systems.........................      203,823           98,020      105,803      123,053
                                              ----------       ----------     --------     --------
                                              $2,658,746      $ 2,037,340     $621,406     $612,601
                                              ==========       ==========     ========     ========
</TABLE>
 
4.   INCOME TAXES
 
     Income taxes expense consists entirely of withholding tax on intercompany
     royalty payments, which is not recoverable, and income taxes at normal
     rates on the income of subsidiaries in the Netherlands and Barbados.
 
     The potential tax savings from investment tax credits and losses carried
     forward as outlined below have not been recorded in the accounts.
 
     REASSESSMENT OF PRIOR YEAR
 
     The company was reassessed for 1988, reducing investment tax credits
     available to offset income taxes otherwise payable in future years by $1.9
     million and requiring repayment of an additional $315,000 of
 
                                      F-38
<PAGE>   105
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
                               (CANADIAN DOLLARS)
 
     such credits which had been received in cash. The liability of $780,000 at
     September 30, 1996 (1995, $690,000) includes accumulated interest of
     $465,000 at September 30, 1996 (1995, $375,000). The company has appealed
     the reassessment.
 
     CANADIAN INCOME TAXES
 
     At March 31, 1996, the company has losses carried forward for income tax
     purposes. These losses carried forward may be used to reduce future years'
     income for tax purposes. The company also has available, subject to Revenue
     Canada's review, investment tax credits. Investment tax credits apply only
     to federal income taxes otherwise payable. The losses carried forward and
     investment tax credits expire approximately as follows:
 
<TABLE>
<CAPTION>
                                                          FEDERAL                                PROVINCIAL
                                     -------------------------------------------------     ----------------------
                                     LOSSES CARRIED FORWARD     INVESTMENT TAX CREDITS     LOSSES CARRIED FORWARD
                                     ----------------------     ----------------------     ----------------------
    <S>                              <C>                        <C>                        <C>
    1997.........................          $       --                 $2,800,000                $         --
    1998.........................           5,400,000                    200,000                   5,800,000
    1999.........................           1,500,000                    700,000                   1,500,000
    2000.........................             300,000                    300,000                     400,000
    2001.........................             100,000                    300,000                     100,000
    2002.........................           1,800,000                    200,000                   1,800,000
    2003.........................             400,000                    200,000                     400,000
                                            ---------                  ---------                  ----------
                                           $9,500,000                 $4,700,000                $ 10,000,000
                                            =========                  =========                  ==========
</TABLE>
 
     UNITED STATES FEDERAL INCOME TAXES
 
     The company has losses carried forward for income tax purposes totalling
     $37,000 U.S. These losses carried forward may be used to reduce future
     years' income for tax purposes and expire approximately as follows:
 
<TABLE>
    <S>                                                                              <C>
    2006.........................................................................    $ 1,000
    2009.........................................................................     14,000
    2011.........................................................................     22,000
                                                                                        ----
                                                                                     $37,000
                                                                                        ====
</TABLE>
 
5.   CAPITAL LEASE OBLIGATIONS
 
     The company has capital lease obligations for office and research equipment
     requiring the following future minimum payments:
 
<TABLE>
<CAPTION>
                                                                           1995         1996
                                                                         --------     --------
    <S>                                                                  <C>          <C>
    1996.............................................................    $ 56,128     $     --
    1997.............................................................      43,377       68,581
    1998.............................................................       8,086       30,517
    1999.............................................................          --       18,344
                                                                          -------      -------
    Total minimum future lease payments..............................     107,591      117,442
    Amounts representing interest at rates from 11.89% to 18.22%.....      16,171       17,001
                                                                          -------      -------
                                                                           91,420      100,441
    Less current portion.............................................      44,086       58,078
                                                                          -------      -------
                                                                         $ 47,334     $ 42,363
                                                                          =======      =======
</TABLE>
 
     Interest paid on capital lease obligations was $21,814 (1995, $4,888; 1994,
     nil).
 
                                      F-39
<PAGE>   106
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
                               (CANADIAN DOLLARS)
 
6.   CAPITAL STOCK
 
     AUTHORIZED
 
     An unlimited number of Class A subordinate voting shares without par value
     carrying one vote per share.
 
     An unlimited number of Class B multiple voting shares without par value
     carrying twenty votes per share. The Class B shares are convertible on a
     share-for-share basis into Class A shares at any time at the option of the
     holder. In certain circumstances during a take-over bid, the Class B
     multiple voting shares may lose their vote entitlement in order to protect
     the rights of Class A subordinate voting shareholders.
 
     ISSUED
 
<TABLE>
<CAPTION>
                                                             NUMBER OF SHARES
                                                          ----------------------
                                                           CLASS A      CLASS B       AMOUNT
                                                          ---------     --------     ---------
    <S>                                                   <C>           <C>          <C>
    Balance, March 31, 1994...........................    11,662,597    2,555,080    $8,459,851
    Employee options exercised........................        5,740           --         2,755
    Class B shares converted..........................        5,000       (5,000)           --
    Balance, March 31, 1995...........................    11,673,337    2,550,080    8,462,606
    Class B shares converted..........................      104,563     (104,563)           --
    Balance, March 31, 1996...........................    11,777,900    2,445,517    8,462,606
</TABLE>
 
     During 1996, the company granted options to purchase 285,000 Class A
     subordinate voting shares at prices ranging from $0.89 to $1.08,
     exercisable at various dates to 2005. No options were granted during 1995.
 
     At March 31, 1996, options to purchase a total of 679,817 Class A
     subordinate voting shares were outstanding at prices ranging from $0.39 to
     $1.52 exercisable at various dates to October, 2005.
 
7.   CONTINGENCIES
 
     In January, 1994 a former officer and director of the company filed a claim
     for wrongful termination seeking $350,000 in damages. The company believes
     the allegations are without merit, has vigorously defended this suit and
     awaits the judgment of the court. In January, 1994 the same person also
     commenced an action in which several persons are defendants who are, or
     have been, officer or directors of the company. The company may be obliged
     to pay up to $100,000 in costs to defend these persons.
 
8.   COMMITMENT
 
     The company is committed to operating lease payments for its office
     premises requiring future payments approximately as follows:
 
<TABLE>
    <S>                                                                             <C>
    1997........................................................................    $145,000
    1998........................................................................     140,000
    1999........................................................................     142,000
    2000........................................................................      36,000
                                                                                    --------
                                                                                    $463,000
                                                                                    ========
</TABLE>
 
                                      F-40
<PAGE>   107
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
                               (CANADIAN DOLLARS)
 
9.   GEOGRAPHIC SEGMENTED INFORMATION
 
     The company carries on business in two geographic segments as follows:
 
<TABLE>
<CAPTION>
                                                           CANADA      OUTSIDE CANADA      TOTAL
                                                         ----------    --------------    ----------
    <S>                                                  <C>           <C>               <C>
    FOR THE YEAR ENDED MARCH 31, 1996
    Gross income......................................   $4,055,678      $  474,706      $4,530,384
    Earnings (loss) for the year......................     (599,436)        415,063        (184,373)
    Total Assets......................................    2,023,272          29,789       2,053,061
    FOR THE YEAR ENDED MARCH 31, 1995
    Gross income......................................    1,019,641       1,674,342       2,693,983
    Earnings (loss) for the year......................   (1,935,540)      1,212,592        (722,948)
    Total Assets......................................    1,011,154          50,816       1,061,970
    FOR THE YEAR ENDED MARCH 31, 1994
    Gross income......................................      920,949       1,053,611       1,974,560
    Earnings (loss) for the year......................     (206,686)         46,008        (160,678)
    Total Assets......................................    1,001,130         447,516       1,448,646
</TABLE>
 
     Included in gross income of the Canadian segment is revenue from customers
     in the United States in the amount of $4,055,678 for fiscal 1996 (1995,
     $996,143; 1994, $919,086).
 
10. COMPARATIVE FIGURES
 
     Certain 1995 and 1994 figures have been reclassified to conform with the
     financial statement presentation adopted in 1996.
 
11. UNAUDITED INTERIM INFORMATION
 
     During the six months ended September 30, 1995 and 1996, the company earned
     revenue from the sale of hardware, software licensing and development
     agreements to IT Network, and was charged for expenses as follows:
 
<TABLE>
<CAPTION>
                                                                        REVENUE       EXPENSES
                                                                       ----------     --------
    <S>                                                                <C>            <C>
    Six months ended September 30, 1995............................    $1,638,786     $ 57,030
    Six months ended September 30, 1996............................     2,821,386       91,086
    Accounts receivable balance from IT Network:
      As of September 30, 1995.....................................                   $580,519
      As of September 30, 1996.....................................                    401,655
</TABLE>
 
     Equipment cost and accumulated depreciation were as follows at September
     30, 1996:
 
<TABLE>
<CAPTION>
                                                                         ACCUMULATED      NET BOOK
                                                            COST         DEPRECIATION      VALUE
                                                         -----------     ------------     --------
    <S>                                                  <C>             <C>              <C>
    Data processing equipment........................    $   507,543      $   417,577     $ 89,966
    Research equipment...............................      1,318,167        1,042,601      275,566
    Office equipment.................................        600,223          479,230      120,993
    Demonstration equipment..........................        223,852          170,612       53,240
    Rental systems...................................        203,823          132,016       71,807
                                                         -----------       ----------     --------
                                                         $ 2,853,608      $ 2,242,036     $611,572
                                                         ===========       ==========     ========
</TABLE>
 
                                      F-41
<PAGE>   108
 
           NOTES TO CONSOLIDATED FINANCIAL STATEMENTS -- (CONTINUED)
 
                               (CANADIAN DOLLARS)
 
     The Class A shares and Class B shares outstanding as of September 30, 1996,
     were as follows:
 
<TABLE>
<CAPTION>
                                                             NUMBER OF SHARES
                                                          ----------------------
                                                           CLASS A      CLASS B       AMOUNT
                                                          ---------     --------     ---------
    <S>                                                   <C>           <C>          <C>
    Balance, March 31, 1996...........................    11,777,900    2,445,517    $8,462,606
    Employee options exercised........................      163,188           --       107,290
    Class B shares converted..........................       18,000      (18,000)           --
    Balance, September 30, 1996.......................    11,959,088    2,427,517    8,569,896
</TABLE>
 
     Geographic segmented information for the six months ended September 30,
     1995 and 1996, was as follows:
 
<TABLE>
<CAPTION>
                                                          CANADA      OUTSIDE CANADA      TOTAL
                                                         ---------    --------------    ---------
    <S>                                                  <C>          <C>               <C>
    FOR THE SIX MONTHS ENDED SEPTEMBER 30, 1995
    Gross income......................................   $1,638,786      $      0       $1,638,786
    Earnings (loss) for the year......................       9,491         (6,334)          3,157
    Total Assets......................................   1,274,048         49,932       1,323,980
    FOR THE SIX MONTHS ENDED SEPTEMBER 30, 1996
    Gross income......................................   2,821,386              0       2,821,386
    Loss for the year.................................    (201,235)        (5,449)       (206,684)
    Total Assets......................................   1,613,792         50,524       1,664,316
</TABLE>
 
                                      F-42
<PAGE>   109
 
                                    PART II
 
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 13. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION
 
     The estimated expenses payable by Source Media, Inc. (the "Registrant" or
the "Company") in connection with the registration of the securities offered
hereby, other than underwriting discounts and commissions, are as follows:
 
<TABLE>
    <S>                                                         <C>
    SEC Registration Fee......................................  $3,139.37
    NASD Filing Fee...........................................     N/A
    Nasdaq Listing Fee........................................      *
    Blue Sky Qualification Fees and Expenses..................      *
    Accounting Fees and Expenses..............................      *
    Legal Fees and Expenses...................................      *
    Transfer Agent and Registrar Fees.........................      *
    Printing and Engraving Expenses...........................      *
    Miscellaneous.............................................      *
                                                                ---------
              Total...........................................  $   *
                                                                =========
</TABLE>
 
- ---------------
 
* To be provided by amendment.
 
ITEM 14. INDEMNIFICATION OF DIRECTORS AND OFFICERS
 
     Section 145 of the Delaware General Corporation Law ("Section 145") permits
indemnification of directors, officers, agents and controlling persons of a
corporation under certain conditions and subject to certain limitations. Article
Eighth of the Company's Certificate of Incorporation (Exhibit 3.1 hereto) and
Section 5.1 of the Company's Bylaws (Exhibit 3.2 hereto) provide for the
indemnification of directors, officers and other authorized representatives of
the Company to the maximum extent permitted by the Delaware General Corporation
Law. Section 145 empowers a corporation to indemnify any person who was or is a
party or is threatened to be made a party to any threatened, pending or
completed action, suit or proceeding, whether civil, criminal, administrative or
investigative, by reason of the fact that he is or was a director, officer or
agent of the corporation or another enterprise if serving at the request of the
corporation. Depending on the character of the proceeding, a corporation may
indemnify against expenses (including attorneys' fees), judgments, fines and
amounts paid in settlement actually and reasonably incurred in connection with
such action, suit or proceeding if the person indemnified acted in good faith
and in a manner he reasonably believed to be in or not opposed to, the best
interests of the corporation, and, with respect to any criminal action or
proceeding, had no reasonable cause to believe his conduct was unlawful. In the
case of an action by or in the right of the corporation, no indemnification may
be made with respect to any claim, issue or matter as to which such person shall
have been adjudged to be liable to the corporation unless and only to the extent
that the court of chancery or the court in which such action or suit was brought
shall determine that despite the adjudication of liability such person is fairly
and reasonably entitled to indemnity for such expenses which the court shall
deem proper. Section 145 further provides that to the extent a director or
officer of a corporation has been successful in the defense of any action, suit
or proceeding referred to above or in the defense of any claim, issue or matter
therein, he shall be indemnified against expenses (including attorneys' fees)
actually and reasonably incurred by him in connection therewith.
 
     The Company's Bylaws permit it to purchase insurance on behalf of any such
person against any liability asserted against him and incurred by him in any
such capacity, or arising out of his status as such, whether or not the Company
would have the power to indemnify him against such liability under the foregoing
provision of the Bylaws.
 
ITEM 15. RECENT SALES OF UNREGISTERED SECURITIES
 
     Immediately prior to the Merger, on June 23, 1995, HBAC issued 250,000
shares of HBAC common stock to GKN Securities Corp. and certain related persons
in exchange for 207,113 Unit Purchase Options
 
                                      II-1
<PAGE>   110
 
("UPOs") that were issued in connection with HBAC's initial public offering in
1993. Each of the UPOs entitled the holder, upon the exercise thereof and
payment of the applicable exercise price, to receive one shares of HBAC common
stock and two warrants having terms similar to the Public Warrants. The 250,000
shares of common stock were issued in reliance on the exemption provided by
Section 3(a)(9) of the Securities Act. The transaction involved the exchange of
a security with an existing security holder of HBAC, and no commission was paid
or given directly or indirectly for soliciting such exchange. In connection with
the Merger, HBAC changed its name to Source Media, Inc. As a result of the
Reverse Split effected on October 10, 1995, such 250,000 shares were combined
into a total of 125,000 shares.
 
     On April 3, 1996, Source issued a warrant to purchase 500,000 shares of its
common stock to Northstar Advantage High Total Return Fund ("Northstar"). The
warrant was issued in reliance on Section 4(2) of the Securities Act. Northstar
is an accredited investor, and the warrant may not be transferred without an
opinion that such transfer would not violate federal or state securities laws.
 
     Pursuant to the Arrangement Agreement (the "Arrangement Agreement") dated
November 13, 1996 between Source and Cableshare Inc. ("Cableshare"), Source has
agreed to issue up to 1,428,955 shares of its common stock to holders of
Cableshare's Class A Shares and Class B Shares, if such holders elect to receive
Source common stock pursuant to the Arrangement Agreement instead of
exchangeable shares of Cableshare. The transactions contemplated by the
Arrangement Agreement will be approved by the Ontario Court of Justice (General
Division) pursuant to Section 182 of the Business Corporations Act (Ontario).
The Source common stock to be issued in connection with the Arrangement
Agreement will be issued without registration in reliance on Section 3(a)(10) of
the Securities Act. A letter has been submitted on Source's behalf requesting
that the staff of the Division of Corporation Finance of the Securities and
Exchange Commission (the "Commission") confirm that it would not recommend any
enforcement action to the Commission if the transactions contemplated by the
Arrangement Agreement are consummated as described therein.
 
ITEM 16. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES
 
(a) Exhibits:
 
<TABLE>
<CAPTION>
      EXHIBIT
       NUMBER                                 DESCRIPTION OF EXHIBIT
- -------------------- ------------------------------------------------------------------------
<C>                  <S>
         3.1         -- Restated Certificate of Incorporation, as amended (filed as Exhibit
                        3.1 to the Company's Registration Statement on Form S-1, as amended
                        (No. 33-97564), and incorporated herein by reference).
         3.2         -- Bylaws (filed as Exhibit 3.2 to HBAC's Registration Statement on Form
                        S-1, as amended (No. 33-62606), and incorporated herein by
                        reference).
         4.1         -- Form of Common Stock Certificate (filed as Exhibit 4.1 to the
                        Company's Registration Statement on Form S-1 (No. 33-97564), and
                        incorporated herein by reference).
         5.1+        -- Opinion of Thompson & Knight, P.C., with respect to the validity of
                        the Source Common Shares.
         8.1++       -- Opinion of Thompson & Knight, P.C. regarding tax matters.
         8.2++       -- Opinion of Heenan Blaikie, Barristers and Solicitors, regarding tax
                        matters.
        10.1         -- Master Agreement between IT Network, Inc. and Pacific Bell Directory,
                        dated December 16, 1992, as amended (filed as Exhibit 10.18 to HBAC's
                        Registration Statement on Form S-4 (No. 33-90482), and incorporated
                        herein by reference).
        10.2         -- Master AudioText Agreement between IT Network, Inc. and BellSouth,
                        dated May 1, 1993 (filed as Exhibit 10.22 to HBAC's Registration
                        Statement on Form S-4 (No. 33-90482), and incorporated herein by
                        reference).
        10.3         -- Sales Agency Agreement by and between US West Marketing Resources
                        Group, Inc. and IT Network, Inc., dated July 6, 1995 (filed as
                        Exhibit 10.1 to the Company's Quarterly Report on Form 10-Q for the
                        quarter ended June 30, 1995, and incorporated herein by reference).
</TABLE>
 
                                      II-2
<PAGE>   111
 
<TABLE>
<CAPTION>
      EXHIBIT
       NUMBER                                 DESCRIPTION OF EXHIBIT
- -------------------- ------------------------------------------------------------------------
<C>                  <S>
        10.4*        -- Development and Licensing Agreement (dated as of April 1, 1995
                        between IT Network, Inc., Source Media, Inc., Cableshare Inc., Cable
                        Share International Inc., Cableshare (U.S.) Limited and Cableshare
                        B.V. (filed as Exhibit 10.22 to the Company's Annual Report on Form
                        10-K for the Year Ended December 31, 1995, and incorporated herein by
                        reference).

        10.5         -- Interactive Television License Agreement between IT Network, Inc.,
                        Cableshare (U.S.) Limited and Cableshare Inc., dated June 11, 1992
                        (filed as Exhibit 10.40 to HBAC's Registration Statement on Form S-4
                        (No. 33-90482), and incorporated herein by reference).

        10.6         -- Interactive Channel Distribution Agreement dated November 16, 1995
                        between IT Network, Inc. and Cablevision Systems Corporation (filed
                        as Exhibit 99.2 to the Company's Current Report on Form 8-K filed
                        January 30, 1996, and as amended on March 19, 1996, and incorporated
                        herein by reference).

        10.7         -- Interactive Cable Agreement between IT Network, Inc. and Sammons
                        Communications, Inc., dated June 4, 1993 (filed as Exhibit 10.53 to
                        HBAC's Registration Statement on Form S-4 (No. 33-90482), and
                        incorporated herein by reference).

        10.8         -- Contribution Agreement between National Research Council Canada and
                        Cableshare Inc. (filed as Exhibit 10.54 to HBAC's Registration
                        Statement on Form S-4 (No. 33-90482), and incorporated herein by
                        reference).

        10.9         -- Letter of Understanding between IT Network, Inc. and Pacific Bell
                        Directory dated August 25, 1994 (filed as Exhibit 10.55 to HBAC's
                        Registration Statement on Form S-4 (No. 33-90482), and incorporated
                        herein by reference).

        10.10        -- Note Agreement dated as of March 28, 1996 between Northstar Advantage
                        High Total Return Fund and the Company (filed as Exhibit 10.1 to the
                        Company's Quarterly Report on Form 10-Q for the Quarter Ended March
                        31, 1996, and incorporated herein by reference).

        10.11        -- 13% Senior Secured Note Due March 31, 2001 (filed as Exhibit 10.2 to
                        the Company's Quarterly Report on Form 10-Q for the Quarter Ended
                        March 31, 1996, and incorporated herein by reference)

        10.12        -- Stock Purchase Warrant dated April 13, 1996 between Northstar
                        Advantage High Total Return Fund and the Company (filed as Exhibit
                        10.3 to the Company's Quarterly Report on Form 10-Q for the Quarter
                        Ended March 31, 1996, and incorporated herein by reference).

        10.13        -- Registration Rights Agreement dated April 3, 1996 between Northstar
                        Advantage High Total Return Fund and the Company (filed as Exhibit
                        10.4 to the Company's Quarterly Report on Form 10-Q for the Quarter
                        Ended March 31, 1996, and incorporated herein by reference).

        10.14        -- Sales Agency Agreement dated May 20, 1996 between The Reuben H.
                        Donnelley Corporation and IT Network, Inc. (filed as Exhibit 10.1 to
                        the Company's Quarterly Report on Form 10-Q for the Quarter Ended
                        June 30, 1996, and incorporated herein by reference).

        10.15        -- License Agreement dated June 6, 1996 between WinStar New Media Co.,
                        Inc. and the Company (filed as Exhibit 10.2 to the Company's
                        Quarterly Report on Form 10-Q for the Quarter Ended June 30, 1996,
                        and incorporated herein by reference).

        10.16*       -- Charter Affiliation Agreement between Century Communications
                        Corporation and the Company (filed as Exhibit 10.1 to the Company's
                        Current Report on Form 8-K filed April 23, 1996, and incorporated
                        herein by reference).
</TABLE>
 
                                      II-3
<PAGE>   112
 
<TABLE>
<CAPTION>
      EXHIBIT
       NUMBER                                 DESCRIPTION OF EXHIBIT
- -------------------- ------------------------------------------------------------------------
<S>                  <C>
        10.17*       -- Services Agreement dated October 21, 1996 between The Reuben H.
                        Donnelley Corporation and IT Network, Inc. (filed as Exhibit 10.1 to
                        the Company's Quarterly Report on Form 10-Q for the Quarter Ended
                        September 30, 1996, and incorporated herein by reference.
        10.18+       -- Arrangement Agreement dated November 13, 1996 between the Company and
                        Cableshare.
        10.19+       -- Form of Plan of Arrangement.
        10.20+       -- Form of Support Agreement between the Company and Cableshare.
        10.21+       -- Form of Voting and Exchange Trust Agreement among the Company,
                        Cableshare and [TRUSTEE].
        21           -- Subsidiaries.
        23.1+        -- Consent of Ernst & Young LLP.
        23.2+        -- Consent of KPMG, Chartered Accountants.
        23.3+        -- Consent of Thompson & Knight, P.C. (included in Exhibit 5.1).
        23.4++       -- Consent of Thompson & Knight, P.C. (to be included in Exhibit 8.1)
        23.5+        -- Consent of Heenan, Blaikie, Barristers & Solicitors.
</TABLE>
 
- ---------------
 
 + Filed herewith.
 
++ To be filed by amendment.
 
 * Confidential treatment has been requested for certain portions of this
   Exhibit. Accordingly, those portions have been omitted from the filed copy
   and filed separately with the Securities and Exchange Commission.
 
     (b) Financial Statement Schedules:
 
     All schedules are omitted because of the absence of conditions under which
they are required or because the required information is given in the financial
statements or notes thereto.
 
ITEM 17. UNDERTAKINGS
 
     Insofar as indemnification for liabilities arising under the Securities Act
may be permitted to directors, officers and controlling persons of the
registrant pursuant to the foregoing provisions, or otherwise, the registrant
has been advised that in the opinion of the Securities and Exchange Commission
such indemnification is against public policy as expressed in the Securities Act
and is, therefore, unenforceable. In the event that a claim for indemnification
against such liabilities (other than the payment by the registrant of expenses
incurred or paid by a director, officer or controlling person of the registrant
in the successful defense of any action, suit or proceeding) is asserted by such
director, officer or controlling person in connection with the securities being
registered, the registrant will, unless in the opinion of its counsel the matter
has been settled by controlling precedent, submit to a court of appropriate
jurisdiction the question whether such indemnification by it is against public
policy as expressed in the Securities Act and will be governed by the final
adjudication of such issue.
 
     The undersigned registrant also hereby undertakes:
 
          (1) To file, during any period in which offers or sales are being
     made, a post-effective amendment to this registration statement:
 
             (i) To include any prospectus required by section 10(a)(3) of the
        Securities Act;
 
             (ii) to reflect in the prospectus any facts or events arising after
        the effective date of the registration statement (or the most recent
        post-effective amendment thereof) which, individually or in the
        aggregate, represent a fundamental change in the information set forth
        in the registration statement. Notwithstanding the foregoing, any
        increase or decrease in volume of securities offered (if the total
        dollar value of securities offered would not exceed that which was
        registered) and any deviation from the low or high end of the estimated
        maximum offering range may be reflected in the
 
                                      II-4
<PAGE>   113
 
        form of prospectus filed with the Commission pursuant to Rule 424(b) if,
        in the aggregate, the changes in volume and price represent no more than
        a 20% change in the maximum aggregate offering price set forth in the
        "Calculation of Registration Fee" table in the effective registration
        statement.
 
             (iii) To include any material information with respect to the plan
        of distribution not previously disclosed in the registration statement
        or any material change to such information in the registration
        statement.
 
          (2) That, if for the purpose of determining any liability under the
     Securities Act, each post-effective amendment that contains a form of
     prospectus shall be deemed to be a new registration statement relating to
     the securities offered therein, and the offering of such securities at that
     time shall be deemed to be the initial bona fide offering thereof.
 
          (3) To remove from registration by means of a post-effective amendment
     any of the securities being registered which remain unsold at the
     termination of the offering.
 
                                      II-5
<PAGE>   114
 
                                   SIGNATURES
 
     Pursuant to the requirements of the Securities Act of 1933, Source Media,
Inc. has duly caused this Registration Statement to be signed on its behalf by
the undersigned, thereunto duly authorized, in Dallas, Texas, on November 26,
1996.
 
                                            SOURCE MEDIA, INC.
 
                                            By: /s/ TIMOTHY P. PETERS
                                                -------------------------------
                                                     Timothy P. Peters,
                                                 Chairman of the Board and
                                                  Chief Executive Officer
 
                               POWER OF ATTORNEY
 
     KNOW ALL MEN BY THESE PRESENTS, that the undersigned directors and officers
of Source Media, Inc., a Delaware corporation, which is filing a Registration
Statement on Form S-1 with the Securities and Exchange Commission, Washington,
D.C. 20549 under the provisions of the Securities Act of 1933, as amended (the
"Securities Act"), hereby constitute and appoint Timothy P. Peters and Michael
G. Pate, and each of them, the individual's true and lawful attorneys-in-fact
and agents, with full power of substitution and resubstitution, for the person
and in his or her name, place and stead, in any and all capacities, to sign such
Registration Statement and any or all amendments, including post-effective
amendments, to the Registration Statement, including a Prospectus or an amended
Prospectus therein and any registration statement for the same offering that is
to be effective upon filing pursuant to Rule 462(b) under the Securities Act,
and all other documents in connection therewith to be filed with the Securities
and Exchange Commission, granting unto said attorneys-in-fact and agents, and
each of them, full power and authority to do and perform each and every act and
thing requisite and necessary to be done in and about the premises, as fully to
all intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorneys-in-fact as agents or any of them, or their
substitute or substitutes, may lawfully do or cause to be done by virtue hereof.
 
     Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed by the following persons in the
capacities and on the dates indicated.
 
<TABLE>
<CAPTION>
                  SIGNATURE                               TITLE                     DATE
- ---------------------------------------------  ----------------------------  ------------------
<C>                                            <S>                           <C>
By:      /s/  TIMOTHY P. PETERS                Chief Executive Officer and    November 26, 1996
   ------------------------------------------    Chairman of the Board
              Timothy P. Peters                  (principal executive
                                                 officer)

By:      /s/  MICHAEL G. PATE                  Chief Financial Officer and    November 26, 1996
   ------------------------------------------    Treasurer (principal
               Michael G. Pate                   financial and accounting
                                                 officer)

By:        /s/  JOHN J. REED                   President and Director         November 26, 1996
   ------------------------------------------
                John J. Reed

By:      /s/  W. SCOTT BEDFORD                 Chief Operating Officer and    November 26, 1996
   ------------------------------------------    Director
              W. Scott Bedford

By:       /s/  JOHN F. BARING                  Director                       November 26, 1996
   ------------------------------------------
               John F. Baring

By:      /s/  ALAN M. FLAHERTY                 Director                       November 26, 1996
   ------------------------------------------
              Alan M. Flaherty
</TABLE>
 
                                      II-6
<PAGE>   115
 
<TABLE>
<CAPTION>
                  SIGNATURE                               TITLE                     DATE
- ---------------------------------------------  ----------------------------  ------------------
<C>                                            <S>                           <C>
By:     /s/  JAMES L. GREENWALD                Director                       November 26, 1996
   ------------------------------------------
             James L. Greenwald

By:     /s/  RHODRIC C. HACKMAN                Director                       November 26, 1996
   ------------------------------------------
             Rhodric C. Hackman

By:     /s/  DAVID L. KUYKENDALL               Director                       November 26, 1996
   ------------------------------------------
             David L. Kuykendall

By:     /s/  MICHAEL J. MAROCCO                Director                       November 26, 1996
   ------------------------------------------
             Michael J. Marocco
</TABLE>
 
                                      II-7
<PAGE>   116
 
                               INDEX TO EXHIBITS
 
<TABLE>
<CAPTION>
      EXHIBIT
       NUMBER                                 DESCRIPTION OF EXHIBIT
- -------------------- ------------------------------------------------------------------------
<C>                  <S>
         3.1         -- Restated Certificate of Incorporation, as amended (filed as Exhibit
                        3.1 to the Company's Registration Statement on Form S-1, as amended
                        (No. 33-97564), and incorporated herein by reference).
         3.2         -- Bylaws (filed as Exhibit 3.2 to HBAC's Registration Statement on Form
                        S-1, as amended (No. 33-62606), and incorporated herein by
                        reference).
         4.1         -- Form of Common Stock Certificate (filed as Exhibit 4.1 to the
                        Company's Registration Statement on Form S-1 (No. 33-97564), and
                        incorporated herein by reference).
         5.1+        -- Opinion of Thompson & Knight, P.C., with respect to the validity of
                        the Source Common Shares.
         8.1++       -- Opinion of Thompson & Knight, P.C. regarding tax matters.
         8.2++       -- Opinion of Heenan Blaikie, Barristers and Solicitors, regarding tax
                        matters.
        10.1         -- Master Agreement between IT Network, Inc. and Pacific Bell Directory,
                        dated December 16, 1992, as amended (filed as Exhibit 10.18 to HBAC's
                        Registration Statement on Form S-4 (No. 33-90482), and incorporated
                        herein by reference).
        10.2         -- Master AudioText Agreement between IT Network, Inc. and BellSouth,
                        dated May 1, 1993 (filed as Exhibit 10.22 to HBAC's Registration
                        Statement on Form S-4 (No. 33-90482), and incorporated herein by
                        reference).
        10.3         -- Sales Agency Agreement by and between US West Marketing Resources
                        Group, Inc. and IT Network, Inc., dated July 6, 1995 (filed as
                        Exhibit 10.1 to the Company's Quarterly Report on Form 10-Q for the
                        quarter ended June 30, 1995, and incorporated herein by reference).
        10.4*        -- Development and Licensing Agreement (dated as of April 1, 1995
                        between IT Network, Inc., Source Media, Inc., Cableshare Inc., Cable
                        Share International Inc., Cableshare (U.S.) Limited and Cableshare
                        B.V. (filed as Exhibit 10.22 to the Company's Annual Report on Form
                        10-K for the Year Ended December 31, 1995, and incorporated herein by
                        reference).
        10.5         -- Interactive Television License Agreement between IT Network, Inc.,
                        Cableshare (U.S.) Limited and Cableshare Inc., dated June 11, 1992
                        (filed as Exhibit 10.40 to HBAC's Registration Statement on Form S-4
                        (No. 33-90482), and incorporated herein by reference).
        10.6         -- Interactive Channel Distribution Agreement dated November 16, 1995
                        between IT Network, Inc. and Cablevision Systems Corporation (filed
                        as Exhibit 99.2 to the Company's Current Report on Form 8-K filed
                        January 30, 1996, and as amended on March 19, 1996, and incorporated
                        herein by reference).
        10.7         -- Interactive Cable Agreement between IT Network, Inc. and Sammons
                        Communications, Inc., dated June 4, 1993 (filed as Exhibit 10.53 to
                        HBAC's Registration Statement on Form S-4 (No. 33-90482), and
                        incorporated herein by reference).
        10.8         -- Contribution Agreement between National Research Council Canada and
                        Cableshare Inc. (filed as Exhibit 10.54 to HBAC's Registration
                        Statement on Form S-4 (No. 33-90482), and incorporated herein by
                        reference).
        10.9         -- Letter of Understanding between IT Network, Inc. and Pacific Bell
                        Directory dated August 25, 1994 (filed as Exhibit 10.55 to HBAC's
                        Registration Statement on Form S-4 (No. 33-90482), and incorporated
                        herein by reference).
</TABLE>
<PAGE>   117
 
<TABLE>
<CAPTION>
      EXHIBIT
       NUMBER                                 DESCRIPTION OF EXHIBIT
- -------------------- ------------------------------------------------------------------------
<C>                  <S>
        10.10        -- Note Agreement dated as of March 28, 1996 between Northstar Advantage
                        High Total Return Fund and the Company (filed as Exhibit 10.1 to the
                        Company's Quarterly Report on Form 10-Q for the Quarter Ended March
                        31, 1996, and incorporated herein by reference).
        10.11        -- 13% Senior Secured Note Due March 31, 2001 (filed as Exhibit 10.2 to
                        the Company's Quarterly Report on Form 10-Q for the Quarter Ended
                        March 31, 1996, and incorporated herein by reference)
        10.12        -- Stock Purchase Warrant dated April 13, 1996 between Northstar
                        Advantage High Total Return Fund and the Company (filed as Exhibit
                        10.3 to the Company's Quarterly Report on Form 10-Q for the Quarter
                        Ended March 31, 1996, and incorporated herein by reference).
        10.13        -- Registration Rights Agreement dated April 3, 1996 between Northstar
                        Advantage High Total Return Fund and the Company (filed as Exhibit
                        10.4 to the Company's Quarterly Report on Form 10-Q for the Quarter
                        Ended March 31, 1996, and incorporated herein by reference).
        10.14        -- Sales Agency Agreement dated May 20, 1996 between The Reuben H.
                        Donnelley Corporation and IT Network, Inc. (filed as Exhibit 10.1 to
                        the Company's Quarterly Report on Form 10-Q for the Quarter Ended
                        June 30, 1996, and incorporated herein by reference).
        10.15        -- License Agreement dated June 6, 1996 between WinStar New Media Co.,
                        Inc. and the Company (filed as Exhibit 10.2 to the Company's
                        Quarterly Report on Form 10-Q for the Quarter Ended June 30, 1996,
                        and incorporated herein by reference).
        10.16*       -- Charter Affiliation Agreement between Century Communications
                        Corporation and the Company (filed as Exhibit 10.1 to the Company's
                        Current Report on Form 8-K filed April 23, 1996, and incorporated
                        herein by reference).
        10.17*       -- Services Agreement dated October 21, 1996 between The Reuben H.
                        Donnelley Corporation and IT Network, Inc. (filed as Exhibit 10.1 to
                        the Company's Quarterly Report on Form 10-Q for the Quarter Ended
                        September 30, 1996, and incorporated herein by reference.
        10.18+       -- Arrangement Agreement dated November 13, 1996 between the Company and
                        Cableshare.
        10.19+       -- Form of Plan of Arrangement.
        10.20+       -- Form of Support Agreement between the Company and Cableshare.
        10.21+       -- Form of Voting and Exchange Trust Agreement among the Company,
                        Cableshare and [TRUSTEE].
        21           -- Subsidiaries.
        23.1+        -- Consent of Ernst & Young LLP.
        23.2+        -- Consent of KPMG, Chartered Accountants.
        23.3+        -- Consent of Thompson & Knight, P.C. (included in Exhibit 5.1).
        23.4++       -- Consent of Thompson & Knight, P.C. (to be included in Exhibit 8.1)
        23.5+        -- Consent of Heenan, Blaikie, Barristers & Solicitors.
</TABLE>
 
- ---------------
 
 + Filed herewith.
 
++ To be filed by amendment.
 
 * Confidential treatment has been requested for certain portions of this
   Exhibit. Accordingly, those portions have been omitted from the filed copy
   and filed separately with the Securities and Exchange Commission.

<PAGE>   1
                                                                     EXHIBIT 5.1


                               November 26, 1996


Source Media, Inc.
8140 Walnut Hill Lane, Suite 1000
Dallas, Texas 75231

Dear Sirs:

         We have acted as counsel for Source Media, Inc., a Delaware
corporation ("Source"), in connection with the preparation of Source's
Registration Statement on Form S-1 (the "Registration Statement"), filed with
the Securities and Exchange Commission (the "Commission") under the Securities
Act of 1933, as amended (the "Securities Act"), for the purpose of registering
under the Securities Act 1,428,955 shares (the "Shares") of common stock of
Source, par value $.001 per share ("Source Common Stock").  The Shares may be
issued from time to time by Source in exchange for the exchangeable shares, no
par value per share (the "Exchangeable Shares"), of Cableshare Inc., an Ontario
corporation ("Cableshare").  The Exchangeable Shares will be issued by
Cableshare in connection with a Plan of Arrangement involving Cableshare and
its stockholders (the "Arrangement").  The Shares will be issued by Source in
accordance with the terms and subject to the conditions set forth in the
Arrangement Agreement dated November 13, 1996 between Source and Cableshare
(the "Agreement").

         In connection with the foregoing we have examined the originals or
copies, certified or otherwise authenticated to our satisfaction, of the
Registration Statement, the Agreement and such corporate records of Source,
certificates of public officials and of officers of Source, and other
agreements, instruments and documents as we have deemed necessary to require as
a basis for the opinions hereinafter expressed.  Where facts material to the
opinions hereinafter expressed were not independently established by us, we
have relied upon the statements of officers of Source, where we deemed such
reliance appropriate under the circumstances.

         Based upon the foregoing and in reliance thereon, and subject to the
assumptions and qualifications hereinafter specified, it is our opinion that
the Shares to be issued by Source in exchange for the Exchangeable Shares in
accordance with the Agreement have been duly authorized by the Company and when
(i) the Registration Statement has become effective under the Securities Act,
(ii) state securities laws have been fully complied with and (iii) the Shares
are issued and delivered pursuant to the Agreement as described in the
Prospectus forming a part of the Registration Statement, the Shares will be
validly issued, fully paid and nonassessable.

         The opinions expressed above are limited by and subject to the
following qualifications:

         (a)     We are members of the Bar of the State of Texas only and do
not purport to be experts on the laws of any state or jurisdiction other than
the State of Texas and the United
<PAGE>   2
Source Media, Inc.
November 26, 1996
Page 2



States.  Insofar as the opinions expressed herein relate to matters governed by
Delaware law, we have relied solely upon a reading of the applicable statutes
and the corporate records of the Company with respect to the opinions given
herein.

         (b)     In rendering the opinions expressed herein, we have assumed
that no action heretofore taken by the Board of Directors of the Company in
connection with the matters described or referred to herein will be modified,
rescinded or withdrawn after the date hereof.

         We hereby consent to the filing of this opinion with the Commission as
an exhibit to the Registration Statement and to the reference to us under the
caption "Validity of Source Common Shares" in the Prospectus forming a part of
the Registration Statement.  In giving this consent, we do not hereby admit
that we come within the category of persons whose consent is required under
Section 7 of the Securities Act or the rules or regulations of the Commission
thereunder.

                                        Respectfully submitted,

                                        THOMPSON & KNIGHT,
                                        A Professional Corporation
                                        
                                        
                                        By: /s/ Michael L. Bengtson      
                                            -----------------------------------
                                            Michael L. Bengtson, Attorney

GCL

<PAGE>   1
 
                                                                   EXHIBIT 10.18
 
                             ARRANGEMENT AGREEMENT
 
                                    BETWEEN
 
                               SOURCE MEDIA, INC.
 
                                   -- AND --
 
                                CABLESHARE INC.
 
                               November 13, 1996
<PAGE>   2
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                PAGE
                                                                               ------
            <S>                                                               <C>
                                         ARTICLE 1.
                                       INTERPRETATION
            1.1    Definitions.............................................      5
            1.2    Currency................................................      8
            1.3    Number and Gender.......................................      8
            1.4    Entire Agreement........................................      8
            1.5    Interpretation..........................................      9
            1.6    Knowledge...............................................      9
            1.7    References to Statutes..................................      9
            1.8    Date of Any Action......................................      9
            1.9    Exhibits................................................      9

                                         ARTICLE 2.
                                       THE ARRANGEMENT
            2.1    Implementation Steps by Cableshare......................      9
            2.2    Implementation Steps by Source..........................     10
            2.3    Interim Order...........................................     10
            2.4    Articles of Arrangement.................................     10
            2.5    Cableshare Options......................................     11
            2.6    Cableshare Information Circular.........................     11
            2.7    Securities Compliance...................................     11
            2.8    Preparation of Filings..................................     11
            2.9    Exchangeable Shares Generally...........................     12
            2.10   Trustee.................................................     13
            2.11   Cableshare Shareholder List.............................     13
            2.12   Place of Closing........................................     13

                                         ARTICLE 3.
                        REPRESENTATIONS AND WARRANTIES OF CABLESHARE
            3.1    Incorporation, Status and Power.........................     13
            3.2    Subsidiaries............................................     13
            3.3    Authority...............................................     13
            3.4    Recommendation..........................................     13
            3.5    No Conflict.............................................     13
            3.6    Share Capitalization....................................     14
            3.7    Shareholder and Similar Agreements......................     14
            3.8    No Changes..............................................     14
            3.9    No Fee or Commission....................................     14
            3.10   Disclosure..............................................     14
            3.11   Material Facts..........................................     14

                                         ARTICLE 4.
                          REPRESENTATIONS AND WARRANTIES OF SOURCE
            4.1    Incorporation, Status and Power.........................     15
            4.2    Authority...............................................     15
            4.3    No Conflict.............................................     15
            4.4    Share Capitalization....................................     15
            4.5    Disclosure..............................................     15
</TABLE>
 
                                        2
<PAGE>   3
 
<TABLE>
<CAPTION>
                                                                               PAGE
                                                                              ------
            <S>                                                               <C>
                                         ARTICLE 5.
                    SURVIVAL AND EFFECT OF REPRESENTATIONS AND WARRANTIES
            5.1    Repetition of Representations and Warranties............     15
            5.2    Survival of Representations and Warranties..............     15
            5.3    Reliance................................................     16

                                         ARTICLE 6.
                                   COVENANTS OF CABLESHARE
            6.1    Recommendation..........................................     16
            6.2    Operation of Cableshare.................................     16
            6.3    Notification............................................     17
            6.4    Access to Information...................................     17
            6.5    Depositary..............................................     17
            6.6    Compliance..............................................     17
            6.7    No Solicitations........................................     17
            6.8    Better Offers...........................................     17
            6.9    Exercise of Dissent Rights..............................     17

                                         ARTICLE 7.
                                     COVENANTS OF SOURCE
            7.1    Conduct of Source's Business............................     18
            7.2    Insurance...............................................     18
            7.3    Northstar Consent.......................................     18
            7.4    Notification............................................     18
            7.5    Exchangeable Shares.....................................     18

                                         ARTICLE 8.
                       COVENANTS REGARDING SATISFACTION OF CONDITIONS
            8.1    Satisfaction of Conditions..............................     19
            8.2    Defence of Proceedings..................................     19
            8.3    Notification............................................     19

                                         ARTICLE 9.
                       CONDITIONS PRECEDENT TO OBLIGATIONS OF PARTIES
            9.1    Conditions in Favour of Both Parties....................     19
            9.2    Conditions in Favour of Source..........................     20
            9.3    Conditions in Favour of Cableshare......................     20

                                         ARTICLE 10.
                                  AMENDMENT AND TERMINATION
            10.1   Termination.............................................     20
            10.2   Effect of Termination...................................     21
            10.3   Expenses................................................     21
            10.4   Amendment...............................................     21
            10.5   Waiver Without Prejudice................................     21
</TABLE>
 
                                        3
<PAGE>   4
 
<TABLE>
<CAPTION>
                                                                               PAGE
                                                                              ------
            <S>                                                               <C>
                                         ARTICLE 11.
                                           GENERAL
            11.1   Notices.................................................     21
            11.2   Survival................................................     22
            11.3   Further Assurances......................................     22
            11.4   Public Announcements....................................     22
            11.5   Binding Effect and Assignment...........................     22
            11.6   Waiver of Jury Trial....................................     22
            11.7   Severability............................................     22
            11.8   Specific Performance....................................     22
            11.9   Construction............................................     22
            11.10 Time of the Essence......................................     23
            11.11 Governing Law............................................     23
            11.12 Counterparts.............................................     23
</TABLE>
 
                                    EXHIBITS
 
           Exhibit 1 -- Plan of Arrangement
           Exhibit 2 -- Arrangement Resolution
           Exhibit 3 -- Support Agreement
           Exhibit 4 -- Voting and Exchange Trust Agreement
           Exhibit 5 -- Disclosure Exhibit
 
                                        4
<PAGE>   5
 
                             ARRANGEMENT AGREEMENT
 
     THIS AGREEMENT made as of the 13th day of November, 1996.
 
B E T W E E N :
                       SOURCE MEDIA, INC.,
                       a corporation existing under the laws of the State of
                       Delaware,
 
                       (hereinafter referred to as the "Source"),
 
                                                              OF THE FIRST PART,
 
                                                - and -
 
                       CABLESHARE INC.,
                       a corporation existing under the laws of the Province of
                       Ontario,
 
                       (hereinafter referred to as "Cableshare"),
 
                                                             OF THE SECOND PART.
 
     WHEREAS the parties have agreed, on the terms and subject to the conditions
hereinafter provided, to enter into a transaction whereby Source will acquire
all of the outstanding shares in the capital of Cableshare not currently owned
by the Source Affiliates;
 
     AND WHEREAS the board of directors of Cableshare has determined that it
would be in the best interests of Cableshare to enter into this Agreement and to
recommend to the shareholders of Cableshare in writing that they vote in favour
of a resolution approving the Arrangement, all on the terms and subject to the
conditions hereinafter provided;
 
     AND WHEREAS the foregoing determination of the board of directors of
Cableshare was made on the recommendation of the Special Committee following the
receipt of an opinion from its financial advisor as to the fairness of the
Arrangement from a financial point of view to Cableshare's shareholders (other
than the Source Affiliates);
 
     NOW THEREFORE THIS AGREEMENT WITNESSES that in consideration of the
respective covenants, representations and warranties herein contained and for
other good and valuable consideration (the receipt and sufficiency of which are
hereby expressly acknowledged by each party), the parties hereby agree as
follows:
 
                                   ARTICLE 1.
 
                                 INTERPRETATION
 
1.1    DEFINITIONS. For the purposes of this Agreement, unless the context
otherwise requires, the following terms shall have the respective meanings set
out below and grammatical variations of such terms shall have corresponding
meanings:
 
      "ACQUISITION PROPOSAL" has the meaning ascribed thereto in section 6.7.
 
      "ACT" means the Business Corporations Act (Ontario), R.S.O. 1990, c. B.16.
 
      "ARRANGEMENT" means the arrangement to be effected under the provisions of
      sections 182 and 183 of the Act on the terms and conditions set forth in
      the Plan of Arrangement, subject to any amendment to the Plan of
      Arrangement made in accordance therewith or at the direction of the Court
      in the Final Order.
 
      "ARRANGEMENT RESOLUTION" means the special resolution of Cableshare in
      content and form substantially similar to the form of special resolution
      appended hereto as Exhibit 2.
 
                                        5
<PAGE>   6
 
      "ARTICLES OF ARRANGEMENT" means the articles of arrangement of Cableshare
      relating to the Arrangement.
 
      "AUDITED FINANCIAL STATEMENTS" means the consolidated balance sheet of
      Cableshare as at March 31, 1996 and the consolidated statements of
      earnings, deficit and changes in financial position for the year then
      ended, together in each case with the notes thereto and the auditors'
      report thereon, all as contained in the annual report of Cableshare for
      the fiscal year ended March 31, 1996.
 
      "AVERAGE TRADING PRICE OF SOURCE COMMON SHARES" means the number that
      equals the volume weighted average trading price, denominated in U.S.
      dollars, of Source Common Shares as reported on NASDAQ for the 20 days on
      which trading took place on NASDAQ ending on the Determination Date.
 
      "BUSINESS DAY" means a day which is not a Saturday, Sunday, a statutory
      holiday within the meaning of the Interpretation Act (Canada) or a day on
      which banks are required or permitted by law to be closed for business in
      Toronto, Ontario.
 
      "CABLESHARE DISCLOSURE DOCUMENTS" means, collectively:
 
      (a)  the Audited Financial Statements;
 
      (b)  the management proxy circular of Cableshare dated November 7, 1995;
 
      (c)  the Unaudited Financial Statements;
 
      (d)  all material change reports filed by Cableshare with the OSC from and
          after March 31, 1996 to but excluding the date hereof; and
 
      (e)  all press releases issued by Cableshare from and after March 31, 1996
          to but excluding the date hereof;
 
      which disclosure documents have been filed under applicable securities
      Laws.
 
      "CABLESHARE INFORMATION CIRCULAR" means the management information
      circular of Cableshare to be prepared and sent to the shareholders of
      Cableshare in connection with the Cableshare Shareholders' Meeting.
 
      "CABLESHARE NEW COMMON SHARES" means shares in the new class of common
      shares in the capital of Cableshare described in subsection 2.4(a).
 
      "CABLESHARE OPTIONS" means those options to acquire Class A Shares from
      Cableshare that are described in the Cableshare Information Circular and
      that remain in existence at the Effective Time.
 
      "CABLESHARE SHAREHOLDERS' MEETING" means the annual and special meeting of
      the shareholders of Cableshare (including any adjournment thereof) that is
      to be convened as provided by the Interim Order to consider, and if deemed
      advisable, approve the Arrangement, all as further described in subsection
      2.1(b).
 
      "CERTIFICATE" means the certificate of arrangement giving effect to the
      reorganization of, and amendments to, the share capital of Cableshare
      effected by the Arrangement, issued pursuant to subsection 183(2) of the
      Act after the Articles of Arrangement have been filed.
 
      "CLASS A SHARES" means the Class A Subordinate Voting Shares without par
      value in the capital of Cableshare.
 
      "CLASS B SHARES" means the Class B Multiple Voting Shares without par
      value in the capital of Cableshare.
 
      "CONTRACT" means any agreement, contract, deed, indenture, licence,
      sub-licence, undertaking, arrangement, understanding, commitment or other
      document or oral statement creating or evidencing legal obligations.
 
      "COURT" means the Ontario Court of Justice (General Division).
 
      "DETERMINATION DATE" means the day which is the second Business Day prior
      to the date of the Cableshare Shareholders' Meeting.
 
                                        6
<PAGE>   7
 
      "DETERMINATION DATE FOREIGN EXCHANGE RATE" means the number (including any
      decimal fraction) which is the value in Canadian dollars of one U.S.
      dollar at the rate of exchange equal to the Bank of Canada's noon rate for
      such currencies on the Determination Date.
 
      "DIRECTOR" means the Director appointed under section 278 of the Act.
 
      "DISSENT RIGHTS" means the rights of dissent in respect of the Arrangement
      described in section 3.1 of the Plan of Arrangement.
 
      "EFFECTIVE DATE" means the date shown on the Certificate.
 
      "EFFECTIVE TIME" has the meaning ascribed thereto in the Plan of
      Arrangement.
 
      "ENCUMBRANCES" means all mortgages, liens, charges, restrictions, security
      interests, adverse claims, pledges, encumbrances, rights of set-off and
      demands or rights of others of any nature or kind whatsoever, including
      any Contract for the purchase or transfer of any of Cableshare's property.
 
      "EXCHANGE ACT" means the United States Securities Exchange Act of 1934.
 
      "EXCHANGE RATIO" means the number equal to the lesser of: (a) the Average
      Trading Price of Source Common Shares multiplied by the Determination Date
      Foreign Exchange Rate and divided by C$2.25; and (b) 7.5.
 
      "EXCHANGEABLE SHARES" means shares in the new class of exchangeable shares
      in the capital of Cableshare described in subsection 2.4(a).
 
      "FINAL ORDER" means the final order of the Court approving the Arrangement
      following the application therefor as contemplated by subsection 2.1(a).
 
      "FINANCIAL STATEMENTS" means the Audited Financial Statements and the
      Unaudited Financial Statements.
 
      "INTERIM ORDER" means the interim order of the Court made in connection
      with the approval of the Arrangement following application therefor, as
      contemplated by subsection 2.1(a).
 
      "LAWS" means all statutes, regulations, statutory, rules, principles of
      law, orders, published policies and guidelines, and terms and conditions
      of any grant of approval, permission, authority or licence of any court,
      government, governmental authority or agency, statutory body (including
      The Toronto Stock Exchange) or self-regulatory authority, and the term
      "applicable" with respect to such Laws and in a context that refers to one
      or more Persons, means that such Laws apply to such Person or Persons or
      its or their business, undertaking, property or securities and emanate
      from a Person having jurisdiction over the Person or Persons or its or
      their business, undertaking, property or securities.
 
      "NASDAQ" means the National Association of Securities Dealers Automated
      Quotation National Market System.
 
      "NORTHSTAR CONSENT" means any consent that may be required in connection
      with the Arrangement in connection with the note agreement made as of
      March 28, 1996 between Source and Northstar Advantage High Total Return
      Fund.
 
      "ONTARIO SECURITIES ACT" means the Securities Act (Ontario), R.S.O. 1990,
      c. S.5.
 
      "OSC" means the Ontario Securities Commission.
 
      "PERSON" includes any individual, firm, partnership, joint venture,
      venture capital fund, association, trust, trustee, executor,
      administrator, legal personal representative, estate, group, body
      corporate, corporation, unincorporated association or organization,
      government body, syndicate or other entity, whether or not having legal
      status.
 
      "PLAN OF ARRANGEMENT" means the plan of arrangement set out as Exhibit 1
      to this Agreement, as the same may be amended as set out in Exhibit 1.
 
      "RECOMMENDATION" means the recommendation of the board of directors of
      Cableshare, made at its meeting held November 12, 1996, that holders of
      Class A Shares and Class B Shares vote in favour of
 
                                        7
<PAGE>   8
 
      the Arrangement Resolution at the Cableshare Shareholders' Meeting, all as
      described in the Cableshare Information Circular.
 
      "REPLACEMENT SOURCE OPTION" has the meaning ascribed thereto in section
      2.5.
 
      "SEC" means the United States Securities and Exchange Commission.
 
      "SECURITIES ACT" means the United States Securities Act of 1933.
 
      "SOURCE AFFILIATES" means IT Network, Inc., a Texas corporation, and
      997758 Ontario Inc., an Ontario corporation.
 
      "SOURCE COMMON SHARE" means a share of common stock of Source, par value
      U.S.$0.001.
 
      "SOURCE DISCLOSURE DOCUMENTS" means, collectively:
 
      (a) the prospectus dated December 7, 1995 in relation to the offering of
          2,350,000 Source Common Shares;
 
      (b) the consolidated balance sheet of Source as at December 31, 1995 and
          the consolidated statements of operations, stockholders' equity
          (capital deficiency) and cash flows for the year then ended, together
          in each case with the notes thereto and the auditors' report thereon,
          all as contained in the annual report of Source for the fiscal year
          ended December 31, 1995;
 
      (c) the Form 10-K filed by Source with the SEC for the fiscal year ended
          December 31, 1995, including the documents incorporated therein by
          reference;
 
      (d) the management proxy statement of Source for the annual meeting of
          stockholders held May 22, 1996;
 
      (e) all Forms 10-Q filed by Source with the SEC since December 31, 1995;
          and
 
      (f) all Forms 8-K filed by Source with the SEC since December 7, 1995;
 
      which disclosure documents have been filed under applicable securities
      Laws.
 
      "SPECIAL COMMITTEE" means the special committee of the directors of
      Cableshare, consisting of directors who are neither officers of Cableshare
      nor officers or directors of Source, that has considered the Arrangement
      and made a recommendation regarding it to the board of directors of
      Cableshare.
 
      "SPECIAL SHARES" means the Special Shares without par value in the capital
      of Cableshare.
 
      "SPECIAL VOTING SHARE" means a share in the Special Voting Stock of Source
      as described in the Voting and Exchange Trust Agreement.
 
      "SUBSIDIARY" means any one of Cableshare International Inc., a Barbados
      limited company, Cableshare B.V., a Netherlands corporation, and
      Cableshare (U.S.) Limited, an Illinois corporation, and "Subsidiaries"
      means all of them collectively.
 
      "SUPPORT AGREEMENT" means an agreement to be made between Source and
      Cableshare on the terms and conditions set forth in Exhibit 3 hereto,
      together with such other terms and conditions as may be customary for
      agreements of a similar nature and as may be agreed to by the parties,
      acting reasonably.
 
      "TERMINATION DATE" means December 31, 1996.
 
      "TRUSTEE" means the trustee referred to in section 2.10.
 
      "UNAUDITED FINANCIAL STATEMENTS" means the unaudited consolidated balance
      sheet of Cableshare as at September 30, 1996 and the consolidated
      statements of earnings and changes in financial position for the six-month
      period ended September 30, 1996, all as contained in the Cableshare
      Information Circular.
 
      "VOTING AND EXCHANGE TRUST AGREEMENT" means an agreement to be made
      between Source, Cableshare and the Trustee on the terms and conditions set
      forth in Exhibit 4 hereto, together with such other terms and conditions
      as may be customary for agreements of a similar nature or as may be agreed
      to by the parties, acting reasonably.
 
                                        8
<PAGE>   9
 
1.2    CURRENCY. References to "C$" or "Canadian dollars" in this Agreement are
to the lawful currency of Canada. References to "U.S.$" or "U.S. dollars" are to
the lawful currency of the United States.
 
1.3    NUMBER AND GENDER. In this Agreement, words importing the singular number
only shall include the plural and vice versa, and words importing any gender
shall include all genders. The use of the words "any" or "a" in relation to a
group or class of Persons or things shall, unless the context otherwise
requires, refer to any one Person or thing included in that group or class.
 
1.4    ENTIRE AGREEMENT. This Agreement, including its Exhibits, constitutes the
entire agreement between the parties hereto and their affiliates with respect to
the subject matter hereof and except as hereinafter provided supersedes all
prior agreements, understandings, negotiations and discussions, whether written
or oral, including the offer letters sent on August 30, 1996 and October 28,
1996 by Source to the Special Committee (in respect of which Cableshare and
Source acknowledge and agree that any agreement made thereunder is terminated in
accordance with its terms upon the execution and delivery by the parties hereto
of this Agreement). Each of Source and Cableshare acknowledges and agrees that
any confidentiality agreement made between Cableshare and Source relating to the
subject matter hereof is superseded by this Agreement to the extent of any
inconsistency or conflict between this Agreement and that agreement and to the
extent that the compliance by any party with its covenants under this Agreement
constitutes a default under or non-compliance by that party with its covenants
under that agreement, but otherwise any such confidentiality agreement remains
in full force and effect. Cableshare further acknowledges and agrees that all
such confidentiality agreements shall be terminated without further notice or
action upon the issuance by the Director of the Certificate. There are no
covenants, conditions, agreements, representations, warranties or other terms or
provisions, express or implied, collateral, statutory or otherwise, relating to
the subject matter hereof except as herein provided.
 
1.5    INTERPRETATION. The division of this Agreement into articles, sections,
subsections and paragraphs and the insertion of headings are for convenience of
reference only and neither such division nor the insertion of such headings
shall affect the construction or interpretation hereof. The terms "this
Agreement", "herein", "hereof", "hereunder" and similar expressions refer to
this arrangement agreement, including the Exhibits hereto, and not to any
particular article, section, subsection, paragraph or other portion hereof, and
any agreement or instrument supplementary or ancillary hereto. When used herein,
"including" shall mean "including, without limitation".
 
1.6    KNOWLEDGE. For the purposes of section 3.7, "to the knowledge of
Cableshare" refers to the actual knowledge of the senior officers of Cableshare
after due inquiry of the relevant employees of Cableshare and due review of all
documents in the possession or under the control of Cableshare.
 
1.7    REFERENCES TO STATUTES. Any reference herein to any statute or
legislation shall be deemed to be a reference to such statute or legislation and
all regulations and rules made thereunder, in each case as amended,
supplemented, replaced, consolidated or superseded from time to time.
 
1.8    DATE OF ANY ACTION. In the event that the date on which any action is
required or permitted to be taken hereunder is not a Business Day, such action
shall be required or permitted to be taken on or by the next succeeding day
which is a Business Day.
 
1.9    EXHIBITS. The following Exhibits are annexed to and incorporated into
this Agreement by reference and are deemed to be a part hereof:
 
            Exhibit 1 -- Plan of Arrangement
            Exhibit 2 -- Arrangement Resolution
            Exhibit 3 -- Support Agreement
            Exhibit 4 -- Voting and Exchange Trust Agreement
            Exhibit 5 -- Disclosure Exhibit
 
                                        9
<PAGE>   10
 
                                   ARTICLE 2.
 
                                THE ARRANGEMENT
 
2.1    IMPLEMENTATION STEPS BY CABLESHARE. Cableshare covenants in favour of
Source that it shall:
 
      (a) as soon as reasonably practicable, and in any event not later than
          the third Business Day following the date hereof, apply in a manner
          acceptable to Source, acting reasonably, under subsection 182(5) of
          the Act for an order approving the Arrangement and for an interim
          order as described in section 2.2, and thereafter proceed with and
          diligently pursue the obtaining of such interim order;
 
      (b) convene and hold a special meeting of the holders of the outstanding
          Class A Shares and Class B Shares of Cableshare for the purpose of
          considering the Arrangement Resolution (and for any other proper
          purpose as may be set out in the notice for such meeting);
 
      (c) subject to obtaining such shareholder approval as is required by the
          Interim Order, proceed with and diligently pursue the application to
          the Court for a final order approving the Arrangement under paragraph
          182(5)(f) of the Act;
 
      (d) subject to obtaining the Final Order and the satisfaction or waiver
          of the other conditions herein contained in favour of each party, send
          to the Director for endorsement and filing by the Director, pursuant
          to section 273 of the Act, the Articles of Arrangement, containing
          share provisions in form and content substantially similar to those
          appended to the Plan of Arrangement, and such other documents as may
          be required in connection therewith under the Act to give effect to
          the Arrangement;
 
      (e) forthwith following the filing of the Articles of Arrangement with
          the Director, execute and deliver the Support Agreement; and
 
      (f) forthwith following the filing of the Articles of Arrangement with
          the Director, execute and deliver the Voting and Exchange Trust
          Agreement.
 
2.2    IMPLEMENTATION STEPS BY SOURCE. Source covenants in favour of Cableshare
that it shall, on or prior to the Effective Date and subject to the satisfaction
or waiver of the other conditions herein contained in favour of each party:
 
      (a) execute and deliver the Support Agreement;
 
      (b) execute and deliver the Voting and Exchange Trust Agreement; and
 
      (c) issue to the Trustee the Special Voting Share.
 
2.3    INTERIM ORDER. The notice of motion for the application referred to in
subsection 2.1(a) shall request that the Interim Order provide:
 
      (a) for the class of Persons to whom notice is to be provided in respect
          of the Arrangement and the Cableshare Shareholders' Meeting and for
          the manner in which such notice is to be provided;
 
      (b) that holders of outstanding Class A Shares and Class B Shares as such
          shall be entitled to vote on the Arrangement Resolution together as a
          single class, and not as separate classes, and holders of Class A
          Shares shall be entitled to one vote for each Class A Share held of
          record and holders of Class B Shares shall be entitled to 20 votes for
          each Class B Share held of record;
 
      (c) that the requisite shareholder approval for the Arrangement
          Resolution shall be 66- 2/3% of the votes cast on the Arrangement
          Resolution by holders of Class A Shares and Class B Shares present in
          person or by proxy at the Cableshare Shareholders' Meeting, voting
          together, and a majority of the votes cast on the Arrangement
          Resolution by holders of Class A Shares and holders of Class B Shares
          present in person or by proxy at the Cableshare Shareholders' Meeting
          excluding shares held by the Source Affiliates and other Persons whose
          votes would be excluded for the purpose of determining "minority
          approval" as such term is defined in Policy 9.1 of the OSC;
 
                                       10
<PAGE>   11
 
      (d) that, in all other respects, the terms, restrictions and conditions
          of the by-laws and articles of Cableshare, including quorum
          requirements all other matters, shall apply in respect of the
          Cableshare Shareholders' Meeting; and
 
      (e) for the grant of the Dissent Rights.
 
2.4   ARTICLES OF ARRANGEMENT. The Articles of Arrangement shall, with such
other matters as are necessary to effect the Arrangement, and all as subject to
the provisions of the Plan of Arrangement (including as described in section
2.9), provide as follows:
 
      (a) the authorized share capital of Cableshare shall be increased by the
          creation of an unlimited number of a new class of common shares
          ("Cableshare New Common Shares"), an unlimited number of a new class
          of exchangeable shares ("Exchangeable Shares") if the same are to be
          issued pursuant to the Plan of Arrangement, and an unlimited number of
          a new class of preferred shares, issuable in series, each such class
          having the rights, privileges, restrictions and conditions described
          with respect to it in the Plan of Arrangement;
 
      (b) the authorized share capital of Cableshare shall be decreased by
          cancelling all of the authorized but unissued Class A Shares and Class
          B Shares;
 
      (c) each shareholder of Cableshare who has elected to receive
          Exchangeable Shares will receive that number of Exchangeable Shares
          equal to the aggregate number of Class A Shares and Class B Shares
          held of record by it, divided by the Exchange Ratio, provided that
          Exchangeable Shares are to be issued pursuant to the Plan of
          Arrangement;
 
      (d) each other shareholder of Cableshare (other than shareholders who
          exercise Dissent Rights and who are ultimately entitled to be paid the
          fair value of the Class A Shares and Class B Shares held by them), and
          other than the Source Affiliates, will receive that number of Source
          Common Shares equal to the aggregate number of Class A Shares and
          Class B Shares held of record by it, divided by the Exchange Ratio;
 
      (e) immediately following the exchanges outlined in paragraph (d) above,
          each issued and outstanding Class A Share and Class B Share (all of
          which will be held by Source or the Source Affiliates) will be
          converted into one Cableshare New Common Share; and
 
      (f) the stated capital attributable to the Cableshare New Common Shares
          and the Exchangeable Shares will be as set out in the Plan of
          Arrangement.
 
2.5   CABLESHARE OPTIONS.
 
      At the Effective Time, each of the Cableshare Options shall be exchanged
for an option (a "Replacement Source Option") to purchase that number of Source
Common Shares equal to the number of Class A Shares or Class B Shares subject to
the Cableshare Option at the Effective Time divided by the Exchange Ratio, or,
at the election of the holder of each Cableshare Option in the event that
Exchangeable Shares are to be issued in accordance with the Plan of Arrangement,
the Cableshare Option shall become an option to purchase that number of
Exchangeable Shares equal to the Class A Shares or Class B Shares subject to the
Cableshare Option at the Effective Time divided by the Exchange Ratio, provided
that no Replacement Source Option shall be exercisable unless the corresponding
Cableshare Option has first been terminated by the holder thereof without having
been exercised. The Replacement Source Options and the Cableshare Options shall
provide for an exercise price per Source Common Share (or Exchangeable Share)
equal to the exercise price per share of such Cableshare Option immediately
prior to the Effective Time multiplied by the Exchange Ratio. If the foregoing
calculation results in a Replacement Source Option or Cableshare Option being
exercisable for a fraction of a Source Common Share (or Exchangeable Share),
then the number of Source Common Shares (or Exchangeable Shares) subject to such
option shall be rounded down to the next whole number of Source Common Shares
(or Exchangeable Shares) and the total exercise price for the option will be
reduced by the exercise price of the fractional Source Common Share (or
Exchangeable Share). The term to expiry, conditions to and manner of exercising,
vesting schedule, status under of the United States Internal Revenue Code, and
all other terms and conditions of the Replacement Source Options and Cableshare
Options will otherwise be unchanged. Source shall reserve a sufficient number of
Source
 
                                       11
<PAGE>   12
 
Common Shares (and, as applicable, Cableshare shall reserve a sufficient number
of Exchangeable Shares) for issuance upon exercise of the Replacement Source
Options and the Cableshare Options.
 
2.6    CABLESHARE INFORMATION CIRCULAR. As promptly as practicable after the
execution and delivery of this Agreement, Source and Cableshare shall prepare
the Cableshare Information Circular together with any other documents required
by the Securities Act, the Exchange Act, the Ontario Securities Act or other
applicable Law in connection with the Arrangement, and Cableshare shall cause
the Cableshare Information Circular and other documentation required in
connection with the Cableshare Shareholders' Meeting to be mailed to each holder
of Class A Shares and Class B Shares and filed as required with the SEC (if
necessary), the OSC and any other securities regulatory authority having
jurisdiction, all at the expense of Source and in accordance with National
Policy No. 41 of the Canadian Securities Administrators, the Interim Order and
applicable Law.
 
2.7    SECURITIES COMPLIANCE. Source and Cableshare shall use all reasonable
efforts to obtain all orders required from the applicable Canadian securities
authorities to permit the issuance and first resale of (a) the Exchangeable
Shares and Source Common Shares pursuant to the Arrangement, (b) the Source
Common Shares upon exchange of the Exchangeable Shares, and (c) Source Common
Shares or Exchangeable Shares upon the exercise of the Replacement Source
Options or Cableshare Options, in each case without qualification with, or
approval of or the filing of any document, including any prospectus or similar
document or the taking of any proceeding with, or the obtaining of any further
order, ruling or consent from, any governmental or regulatory authority under
any Canadian federal, provincial or territorial Law or pursuant to the rules and
regulations of any regulatory authority administering such Law, or the
fulfilment of any other legal requirement in any such jurisdiction (other than,
with respect to such first resales, any restrictions on transfer by reason of
(x) a holder being a "control person" of Source or Cableshare for purposes of
Canadian federal, provincial or territorial securities Law, (y) any unusual
effort being made to prepare the market or create a demand for the securities,
or (z) any extraordinary commission or consideration being paid in respect of
the trade).
 
2.8  PREPARATION OF FILINGS.
 
     (a) Source and Cableshare shall cooperate in:
 
         (i)   the preparation of any application for the orders referred to in
               section 2.7, and any other documents reasonably deemed by Source
               or Cableshare to be necessary to discharge their respective
               obligations under United States and Canadian federal, provincial,
               territorial or state securities Laws in connection with the
               Arrangement and the other transactions contemplated hereby;
 
         (ii)  the taking of all such action as may be required under any
               applicable provincial, territorial or state securities Laws
               (including "blue sky laws") in connection with the issuance of
               the Exchangeable Shares and the Source Common Shares in
               connection with the Arrangement; provided, however, that with
               respect to United States blue sky and Canadian provincial
               qualifications neither Source nor Cableshare shall be required to
               register or qualify as a foreign corporation or to take any
               action that would subject it to service of process in any
               jurisdiction where any such entity is not now so subject, except
               as to matters and transactions arising solely from the offer and
               sale of the Exchangeable Shares and the Source Common Shares; and
 
         (iii) the taking of all such action as may be required under the Act
               in connection with the transactions contemplated by this
               Agreement and the Plan of Arrangement.
 
     (b) Each of Source and Cableshare shall furnish to the other all such
         information concerning it and its shareholders as may be required for
         the effectuation of the actions described in sections 2.6 and 2.7 and
         the foregoing provisions of this section 2.8, and each covenants that
         no information furnished by it in connection with such actions or
         otherwise in connection with the consummation of the Arrangement and
         the other transactions contemplated by this Agreement will contain any
         untrue statement of a material fact or omit to state a material fact
         required to be stated in
 
                                       12
<PAGE>   13
 
          any such document or necessary in order to make any information so
          furnished for use in any such document not misleading in light of the
          circumstances in which it is furnished or to be used.
 
      (c) Source and Cableshare shall each promptly notify the other if at any
          time before or after the Effective Time it becomes aware that the
          Cableshare Information Circular or an application for an order
          described in section 2.7 contains any untrue statement of a material
          fact or omits to state a material fact required to be stated therein
          or necessary to make the statements contained therein not misleading
          or that otherwise requires an amendment or supplement to the
          Cableshare Information Circular or such application. In any such
          event, Source and Cableshare shall cooperate in the preparation of a
          supplement or amendment to the Cableshare Information Circular or such
          other document, as required and as the case may be, and, if required,
          shall cause the same to be distributed to shareholders of Source or
          Cableshare and/or filed with the OSC and other relevant securities
          regulatory authorities.
 
      (d) Each party shall ensure that the Cableshare Information Circular
          complies with all applicable Laws except as relate to the disclosure
          of information regarding the other party (and, with respect to Source,
          except as relate to matters coming before the Cableshare Shareholders'
          Meeting other than the Arrangement Resolution), and, without limiting
          the generality of the foregoing, provides holders of Class A Shares
          and Class B Shares receiving the Cableshare Information Circular with
          information in sufficient detail to permit them to form a reasoned
          judgment concerning the matters to be before them at the Cableshare
          Shareholders' Meeting.
 
      (e) Each party shall promptly notify the other of the receipt of any
          comments from the staff of any securities regulatory authority on the
          Cableshare Information Circular and of any request by the staff of any
          securities regulatory authority for any amendment thereof or
          supplement thereto, and shall supply the other with copies of all
          correspondence received from the staff of any securities regulatory
          authority with respect to the Cableshare Information Circular.
 
2.9    EXCHANGEABLE SHARES GENERALLY. In the event that holders of Class A
Shares and Class B Shares resident in Canada have elected in accordance with the
Plan of Arrangement to receive Exchangeable Shares in respect of fewer than 50%
of the Class A Shares and Class B Shares (taken together, but excluding those
Class A Shares and Class B Shares held by the Source Affiliates and (without
duplication) those not held by residents of Canada) outstanding immediately
prior to the Effective Time, then, in accordance with the Plan of Arrangement,
the Exchangeable Shares shall not be added to the authorized capital of
Cableshare, no Person need execute or deliver (or use any efforts to cause any
other Person to execute and deliver) the Voting and Exchange Trust Agreement or
the Support Agreement, holders of Class A Shares and Class B Shares shall
receive only Source Common Shares under the Arrangement, and all other
provisions of this Agreement relating to Exchangeable Shares shall be deemed to
never have been in force or to have had effect insofar (and only insofar) as
they relate to Exchangeable Shares.
 
2.10   TRUSTEE. Source shall use its reasonable efforts to (a) identify a
corporate trustee, acceptable to Cableshare, acting reasonably, to be the
trustee under the Voting and Exchange Trust Agreement, and (b) have such trustee
execute and deliver, forthwith following the grant of the Final Order, the
Voting and Exchange Trust Agreement.
 
2.11   CABLESHARE SHAREHOLDER LIST. Cableshare shall cause a list of Cableshare
shareholders as of the record date for the Cableshare Shareholders' Meeting and
shareholder mailing information, in a form suitable for soliciting Cableshare
Shareholders, to be prepared by the transfer agent of Cableshare and to be
delivered to Source no later than the Business Day after such record date.
 
2.12   PLACE OF CLOSING. The execution and delivery of the documents required to
effectuate the Arrangement (the "Closing") shall take place at the offices of
Davies, Ward & Beck, Suite 4400, 1 First Canadian Place, Toronto, Ontario, or at
such other place as to which the parties may agree.
 
                                       13
<PAGE>   14
 
                                   ARTICLE 3.
 
                  REPRESENTATIONS AND WARRANTIES OF CABLESHARE
 
      Cableshare represents and warrants to and in favour of Source as follows.
 
3.1    INCORPORATION, STATUS AND POWER. Cableshare is a corporation duly
incorporated, organized and validly existing under the laws of the Province of
Ontario and has all requisite corporate power to own or lease its property, to
carry on its operations as now carried on or currently proposed to be carried
on, to execute and deliver this Agreement and to perform its obligations
hereunder.
 
3.2    SUBSIDIARIES. Cableshare has no direct or indirect subsidiaries (as such
term is defined in the Act) other than the Subsidiaries. Cableshare is the
registered and beneficial holder, free from all Encumbrances, of all of the
issued and outstanding securities (including shares in the capital) of each
Subsidiary. Each Subsidiary is a corporation duly incorporated, organized and
validly existing under the laws of the jurisdiction of its incorporation and has
all requisite corporate power to own or lease its property, to carry on its
operations as now carried on or currently proposed to be carried on. There
exists no Contract or other arrangement or circumstance under which any Person
other than Cableshare (or Persons who are officers or directors of Cableshare)
has the power or ability to manage or direct the conduct of the business and
affairs of any Subsidiary.
 
3.3    AUTHORITY. The execution and delivery of this Agreement by Cableshare and
the performance by Cableshare of its obligations hereunder have been duly and
validly authorized by all necessary corporate action on the part of Cableshare
and, subject to obtaining the requisite shareholder approvals contemplated in
the Interim Order, no other corporate proceedings on the part of Cableshare are
necessary to authorize this Agreement or consummate the transactions
contemplated hereby. This Agreement has been duly executed and delivered by
Cableshare and constitutes a legal, valid and binding obligation of Cableshare
enforceable against it by Source in accordance with its terms, subject to the
availability of equitable remedies and the enforcement of creditors' rights
generally.
 
3.4    RECOMMENDATION. The board of directors of Cableshare has adopted the
Recommendation following the receipt by it of a recommendation from the Special
Committee and an opinion from the financial advisor to the Special Committee
that the terms of the Arrangement as proposed in the Plan of Arrangement are
fair from a financial point of view to Cableshare's shareholders (other than the
Source Affiliates).
 
3.5    NO CONFLICT. Except as disclosed in Exhibit 5, the execution and delivery
of this Agreement and the performance by Cableshare of its obligations hereunder
do not and will not:
 
      (a) conflict with or breach in any material respect (i) the constating
          documents or by-laws of Cableshare or the resolutions of its directors
          or shareholders, (ii) Contracts binding on Cableshare, or (iii) Laws
          applicable to Cableshare or any Subsidiary;
 
      (b) give rise to any right to terminate or any restriction on the rights
          or benefits of Cableshare or any Subsidiary under any material
          Contract to which Cableshare or any Subsidiary is a party; or
 
      (c) result in the imposition of any Encumbrance on any material asset of
          Cableshare or any Subsidiary.
 
3.6    SHARE CAPITALIZATION.
 
      (a) The authorized capital of Cableshare consists of an unlimited number
          of Special Shares, an unlimited number of Class A Shares and an
          unlimited number of Class B Shares.
 
      (b) As at the date hereof: (i) 11,950,088 Class A Shares and 2,432,517
          Class B Shares are issued and outstanding; (ii) no Special Shares are
          issued and outstanding; and (iii) there are no other issued and
          outstanding shares in the capital of Cableshare.
 
      (c) All issued and outstanding shares of Cableshare have been validly
          authorized and issued and are fully paid and non-assessable. The Class
          A Shares and Class B Shares are listed and posted for trading on The
          Toronto Stock Exchange, but not on any other exchange or stock
          quotation and trading system.
 
                                       14
<PAGE>   15
 
      (d) There are no options, warrants, conversion privileges, calls or other
          rights of any nature whatsoever, and no Contract or any other document
          under which Cableshare is obligated, contingently or otherwise, to
          issue or sell any shares in the capital stock of Cableshare or
          securities or obligations of any kind convertible into or exchangeable
          for any shares in the capital stock of Cableshare, nor are there
          outstanding any stock appreciation rights, phantom equity or similar
          rights, agreements, arrangements or commitments based upon the book
          value, income or other attributes of Cableshare, except for (i) the
          options to acquire Class A Shares described as to date of grant,
          number of Class A Shares under option, holder, option exercise price
          and expiry date described in the Cableshare Information Circular, and
          (ii) the rights of holders of Class B Shares to convert each Class B
          Share into a Class A Share in accordance with the articles of
          Cableshare. No holder of Cableshare shares is entitled to any
          pre-emptive or other similar rights in respect of shares in the
          capital of Cableshare.
 
3.7    SHAREHOLDER AND SIMILAR AGREEMENTS. To the knowledge of Cableshare, there
are no shareholder, pooling, voting trust or other agreements relating to the
issued and outstanding shares of Cableshare.
 
3.8    NO CHANGES. Since the date of the Audited Financial Statements:
 
      (a) Cableshare and each Subsidiary has carried on its affairs in the
          ordinary course consistent with past practice; and
 
      (b) Cableshare has not made any change in its accounting principles and
          practices as theretofore applied, including the basis upon which its
          assets and liabilities are recorded on its books and its earnings and
          profits and losses are ascertained.
 
3.9    NO FEE OR COMMISSION. Except as described as to payee and amount in the
Cableshare Information Circular, Cableshare is not liable for any brokers' fee,
financial advisory fee or commission in connection with any transaction
contemplated by this Agreement.
 
3.10   DISCLOSURE. The Cableshare Disclosure Documents, when taken together and
as at their respective dates, include all documents that Cableshare has been
required by Laws applicable to it to file with the OSC since March 31, 1996,
were prepared in accordance with the requirements of applicable Laws and did
not, when filed, contain any untrue statement of a material fact or omit to
state any material fact required to be stated therein or necessary in order to
make the statements made therein not misleading in light of the circumstances
under which they were made. This Agreement contains no untrue statement of a
material fact and does not omit to state any material fact required to be stated
herein or necessary in order to make the statements made herein not misleading
in light of the circumstances under which they are made. No material fact exists
on the date hereof which has not been disclosed in the Cableshare Disclosure
Documents which, if publicly disclosed, would reflect that an adverse material
change (or any event, condition or state of facts which might reasonably be
expected to give rise to any such material change) had occurred in the affairs,
capital, assets, liabilities, financial condition, operations or prospects of
Cableshare.
 
3.11   MATERIAL FACTS. Cableshare has attempted in good faith to deliver all
documents that Cableshare is reasonably able to deliver or cause to be delivered
that have been requested by Source or its advisors, and has not withheld any
material fact actually known to Cableshare in responding to the inquiries made
to it in writing by Source or its advisors in connection with the transactions
contemplated by this Agreement.
 
                                       15
<PAGE>   16
 
                                   ARTICLE 4.
 
                    REPRESENTATIONS AND WARRANTIES OF SOURCE
 
      Source represents and warrants to and in favour of Cableshare as follows.
 
4.1    INCORPORATION, STATUS AND POWER. Source is a corporation duly
incorporated, organized and validly existing under the laws of the State of
Delaware and has all requisite corporate power to own or lease its property, to
carry on its operations as now carried on or currently proposed to be carried
on, to execute and deliver this Agreement and to perform its obligations
hereunder.
 
4.2    AUTHORITY. The execution and delivery of this Agreement by Source and the
performance by Source of its obligations hereunder have been duly and validly
authorized by all necessary corporate action on the part of Source and no other
corporate proceedings on the part of Source are necessary to authorize this
Agreement or consummate the transactions contemplated hereby, including the
issuance of Source Common Shares as contemplated pursuant to the Arrangement.
This Agreement has been duly executed and delivered by Source and constitutes a
legal, valid and binding obligation of Source enforceable against it by
Cableshare in accordance with its terms, subject to the availability of
equitable remedies and the enforcement of creditors' rights generally.
 
4.3    NO CONFLICT. The execution and delivery of this Agreement and the
performance by Source of its obligations hereunder do not and will not:
 
      (a) conflict with or breach in any material respect (i) the constating
          documents or by-laws of Source or the resolutions of its directors or
          shareholders; (ii) Contracts binding on Source; or (iii) Laws
          applicable to Source;
 
      (b) give rise to any right to terminate or any restriction on the rights
          or benefits of Source under any material Contract to which Source is a
          party; or
 
      (c) result in the imposition of any Encumbrance on any material asset of
          Source.
 
4.4    SHARE CAPITALIZATION.
 
      (a) The authorized capital of Source consists of 1,000,000 shares of
          Preferred Stock, U.S.$0.001 par value, 50,000,000 Source Common
          Shares, and an unlimited number of shares of treasury stock.
 
      (b) As at the date hereof: (i) 9,945,690 Source Common Shares are issued
          and outstanding; (ii) no shares of Preferred Stock are issued and
          outstanding; and (iii) there are no other outstanding shares in the
          capital of Source.
 
      (c) All issued and outstanding shares of Source have been validly
          authorized and issued and are fully paid and non-assessable. The
          Source Common Shares are listed and posted for trading on NASDAQ, but
          not on any other exchange or stock quotation and trading system.
 
4.5    DISCLOSURE. The Source Disclosure Documents, when taken together and as
at their respective dates, include all documents that Source has been required
by Laws applicable to it to file with the SEC since December 7, 1995, were
prepared in accordance with the requirements of applicable Laws and did not,
when filed, contain any untrue statement of a material fact or omit to state any
material fact required to be stated therein or necessary in order to make the
statements made therein not misleading in light of the circumstances under which
they were made and, in particular, no material fact exists on the date hereof
that has not been disclosed in the Source Disclosure Documents which, if
publicly disclosed, would reflect that an adverse material change (or any event,
condition or state of facts which might reasonably be expected to give rise to
any such material change) had occurred in the affairs, capital, assets,
liabilities, financial condition, operations or prospects of Source.
 
                                       16
<PAGE>   17
 
                                   ARTICLE 5.
 
             SURVIVAL AND EFFECT OF REPRESENTATIONS AND WARRANTIES
 
5.1    REPETITION OF REPRESENTATIONS AND WARRANTIES. The representations and
warranties of each of the parties shall be deemed to be repeated on the date
hereof and on the Effective Date.
 
5.2    SURVIVAL OF REPRESENTATIONS AND WARRANTIES. The representations and
warranties of each party shall survive the execution and delivery of this
Agreement and shall terminate on the earlier of the termination of this
Agreement and the day after the Effective Date.
 
5.3    RELIANCE. No investigation by either party or its advisors will affect
the representations and warranties of the other party or diminish the first
party's reliance on any of them.
 
                                   ARTICLE 6.
 
                            COVENANTS OF CABLESHARE
 
      Cableshare covenants in favour of Source as follows.
 
6.1    RECOMMENDATION. Subject to section 6.8, the Recommendation shall be
reflected in the Cableshare Information Circular.
 
6.2    OPERATION OF CABLESHARE. Until the earlier of the termination of this
Agreement and the Effective Date and subject to the terms of this Agreement,
Cableshare shall, and shall cause each Subsidiary to, except with the prior
written consent of Source:
 
      (a) carry on its operations only in, and not take any action except in,
          the ordinary course in substantially the same manner as heretofore
          carried on and use all reasonable efforts to preserve intact its
          present organization, licences and permits, comply with applicable
          Laws and orders, maintain all beneficial relationships, retain the
          benefit of all material Contracts and retain the services of its
          employees to the end that its goodwill and operations shall be
          maintained;
 
      (b) not issue, sell or authorize the issuance or sale, or grant any right
          to acquire of any nature whatsoever any securities of Cableshare
          (except pursuant to the exercise of the Options or the conversion into
          Class A Shares or Class B Shares now outstanding), or split, combine,
          reclassify any share or effect any other change in its share capital;
 
      (c) not purchase or propose the purchase of any of its shares of any
          class or securities convertible into or rights, warrants or options to
          acquire any such shares or other exchangeable or convertible
          securities, or the conversion of convertible securities outstanding on
          the date hereof;
 
      (d) not sell, transfer, convey, assign, encumber or otherwise dispose of
          any material asset except for fair value in the normal course of
          business, consistent with the practice in prior periods;
 
      (e) not sell, transfer, convey, assign, encumber or otherwise dispose of
          any equity interest in any Subsidiary;
 
      (f) not acquire or agree to acquire any assets or securities of or make
          any investment in or loan to any Person, or acquire or agree to
          acquire by amalgamating, merging or consolidating with, purchasing
          substantially all of the assets of or otherwise, any Person, except
          that Cableshare may acquire assets in the ordinary course of its
          business, consistent with the practice in prior periods;
 
      (g) not pay, discharge or satisfy any material claim, liability or
          obligation (absolute, accrued, asserted or unasserted, contingent or
          otherwise) other than in the ordinary course of business consistent
          with prior practice of liabilities reflected or reserved against in
          the Financial Statements or incurred in the ordinary course of
          business since September 30, 1996 consistent with past practice;
 
      (h) not incur, commit to incur or guarantee the payment of indebtedness
          for borrowed money or issue any debt securities;
 
                                       17
<PAGE>   18
 
      (i) not make any material tax election inconsistent with past practices
          or settle or compromise any material federal, provincial, state, local
          or foreign tax liability or agree or seek an extension to the filing
          of any return or other filing relating to the assessment or payment of
          taxes;
 
      (j) not terminate or amend any material Contract or enter into any 
          material Contract;
 
      (k) not adopt or amend any employee benefit, bonus, savings, deferred
          compensation, stock option, stock purchase, stock appreciation, group
          insurance, profit sharing, retirement, health, dental, vision,
          employment or unemployment, education, disability or like plans,
          programs or arrangements under which Cableshare or any Subsidiary has
          any obligation (other than the Canada Pension Plan and programs
          administered under the Workers Compensation Act (Ontario) and the
          Unemployment Insurance Act (Canada)), or any pension plan for the
          benefit of the current or former employees of Cableshare or any
          Subsidiary or their spouses, children, dependants, beneficiaries or
          estates; and
 
      (l) not enter into any Contract to do any act or thing it is required not
          to do by the foregoing provisions of this section 6.2.
 
6.3    NOTIFICATION. Cableshare shall promptly notify Source orally and in
writing of (as and when Cableshare becomes aware of the same):
 
      (a) any material change in the working capital, financial condition,
          assets, liabilities, operations or prospects of Cableshare or any
          Subsidiary;
 
      (b) any litigation, proceeding, third party complaint or regulatory
          action that could materially adversely affect any of the working
          capital, financial condition, assets, liabilities, operations or
          prospects of Cableshare or any Subsidiary;
 
      (c) all relevant details of any proposal or offer of the type referred to
          in section 6.7, or of the possibility of any such proposal or offer
          being made by any Person; and
 
      (d) the occurrence or failure to occur of any event or matter that may
          cause any representation or warranty of Cableshare hereunder to be
          untrue or inaccurate at any time.
 
6.4    ACCESS TO INFORMATION. Cableshare shall provide Source and its advisors
with such information and documentation relating to Cableshare and the
Subsidiaries (including its books and records), and such access to the
directors, officers, employees, agents, auditors and advisors to and facilities
of Cableshare and such Subsidiaries, as Source may reasonably request from time
to time.
 
6.5    DEPOSITARY. Cableshare shall permit and direct Cableshare's registrar and
transfer agent to act as Source's depositary under the Arrangement.
 
6.6    COMPLIANCE. Cableshare shall ensure that the Cableshare Shareholders'
Meeting is conducted in compliance with the articles and by-laws of Cableshare
and with the Interim Order.
 
6.7    NO SOLICITATIONS. Cableshare shall not directly or indirectly make,
solicit, initiate or encourage enquiries or the submission of proposals or
offers from any Person other than Source relating to the acquisition,
recapitalization, merger, amalgamation, arrangement, purchase or dissolution of
Cableshare or, except with the prior written consent of Source, of any
Subsidiary or other material assets or any ownership or debt interest of or in
Cableshare or any similar or business combination transaction (any of the
foregoing proposals or offers being referred to herein as an "Acquisition
Proposal"), or participate in discussions or negotiations, or in any way assist,
facilitate or cooperate with any Person other than Source seeking to do any of
the foregoing, including by furnishing information to any such Person, provided
that the foregoing shall not prevent the board of directors of Cableshare from
responding to any bona fide offer, proposal or enquiry made by a third party in
connection with the foregoing and providing information to such a Person if, in
the opinion of the directors, acting in good faith and upon the advice of their
financial and legal advisors, the failure to do so would be inconsistent with
the directors' fiduciary duties under applicable Law.
 
6.8    BETTER OFFERS.
 
      (a) If a competing bona fide Acquisition Proposal is made that is more
          favourable from a financial point of view to shareholders of
          Cableshare (other than the Source Affiliates), then the board of
 
                                       18
<PAGE>   19
 
          directors of Cableshare may withdraw the Recommendation and may
          support the competing bona fide Acquisition Proposal provided that, in
          the opinion of the directors, acting in good faith and upon the advice
          of their financial and legal advisors, the failure to do so would be
          inconsistent with the directors' fiduciary duties under applicable
          Law.
 
      (b) Cableshare and its board of directors may cause any withdrawal of the
          Recommendation and any support for or recommendation of a competing
          bona fide Acquisition Proposal made as permitted by subsection 6.8(a)
          to be reflected in a public announcement and in an information
          circular or amendment thereto.
 
6.9    EXERCISE OF DISSENT RIGHTS. Cableshare shall give Source (a) prompt
notice of any written demands of holders of Class A Shares or Class B Shares in
exercise of the Dissent Rights, withdrawals of such demands, and any other
instruments served pursuant to the Act and received by Cableshare, and (b) the
opportunity to participate in all negotiations and proceedings with respect to
such rights. Cableshare shall not, except with the prior written consent of
Source, voluntarily make any payment with respect to any such rights or offer to
settle or settle any such rights.
 
                                   ARTICLE 7.
 
                              COVENANTS OF SOURCE
 
      Source covenants in favour of Cableshare as follows.
 
7.1    CONDUCT OF SOURCE'S BUSINESS. Until the earlier of the termination of
this Agreement and the Effective Date, Source shall not:
 
      (a) amend its constating documents in any manner that would consolidate,
          subdivide, reorganize, reclassify or otherwise affect the terms of the
          Source Common Shares;
 
      (b) acquire or agree to acquire, by amalgamation or consolidation with,
          or by purchasing equity of, any other Person or all or substantially
          all of the business and assets of any other Person, other than a
          subsidiary of Source (as that term is defined in the Act) or pursuant
          to this Agreement;
 
      (c) declare, set aside, make or pay any dividend or other distribution
          (whether in cash, stock or property or any combination thereof) in
          respect of any of its capital stock;
 
      (d) sell, transfer or dispose of all or substantially all of its business
          and assets; or
 
      (e) enter into any Contract to do any of the foregoing acts or things.
 
7.2    INSURANCE. If the Arrangement becomes effective, Source shall cause
Cableshare and its successors to continue for two years after the Effective Date
to indemnify the officers and directors and former officers and directors of
Cableshare for claims made during such period relating to their acts or
omissions on or prior to the Effective Date on terms substantially similar to
those of the indemnity now provided by Cableshare to its officers and directors
as provided for in the by-laws of Cableshare as currently in effect, provided
that insurance coverage in respect of such indemnity can be obtained on
reasonable terms.
 
7.3    NORTHSTAR CONSENT. Until the Arrangement has become effective and Source
has issued the Source Common Shares required by subsection 2.2(d) or 2.3(c) of
the Plan of Arrangement, Source shall:
 
      (a) if necessary, obtain and, once obtained, not consent to the
          amendment, termination or withdrawal of the Northstar Consent or waive
          or suffer any non-compliance with any right, benefit or covenant in
          its favour therein contained, except with the prior written consent of
          Cableshare;
 
      (b) if necessary, obtain and, once obtained, use its best efforts to keep
          in full force and effect the Northstar Consent; and
 
      (c) do all such acts and things as may be necessary for Source to issue
          the Source Common Shares required by subsection 2.2(d) or 2.3(c) of
          the Plan of Arrangement, as applicable.
 
7.4    NOTIFICATION. Source shall promptly notify Cableshare orally and in
writing of (as and when Source becomes aware of the same):
 
                                       19
<PAGE>   20
 
      (a) any material change in the working capital, financial condition,
          assets, liabilities, operations or prospects of Source, on a
          consolidated basis;
 
      (b) any litigation, proceeding, third party complaint or regulatory
          action that could materially adversely affect any of the working
          capital, financial condition, assets, liabilities, operations or
          prospects of Source, on a consolidated basis; and
 
      (c) the occurrence or failure to occur of any event or matter that may
          cause any representation or warranty of Source hereunder to be untrue
          or inaccurate at any time.
 
7.5    EXCHANGEABLE SHARES. If the Arrangement becomes effective and the
Exchangeable Share Condition is satisfied, Source shall:
 
      (a) use its best efforts to ensure that Cableshare remains a "public
          corporation" within the meaning of the Income Tax Act (Canada) for so
          long as there are Exchangeable Shares outstanding (other than those
          held by Source or the Source Affiliates); and
 
      (b) if there are Exchangeable Shares outstanding (other than those held
          by Source or the Source Affiliates) when Source is eligible to file a
          registration statement on form S-3 in respect of Source Common Shares
          under the Securities Act, cause Cableshare to list the Exchangeable
          Shares on a stock exchange in Canada (and, if necessary in connection
          therewith, Source shall file a registration statement with the SEC
          relating to Source Common Shares), provided that Source shall not be
          obligated hereby to file any registration statement with the SEC at
          any time when Source is in the course of making a public offering or
          distribution of its securities or for 90 days following such an
          offering or distribution, and further provided that nothing in this
          section 7.5 shall derogate from any provisions hereof relating to the
          redemption, retraction, exchange or call of Exchangeable Shares.
 
                                   ARTICLE 8.
 
                 COVENANTS REGARDING SATISFACTION OF CONDITIONS
 
8.1    SATISFACTION OF CONDITIONS. Each of Cableshare and Source covenants in
favour of the other party that it shall use all reasonable commercial efforts to
satisfy (or cause the satisfaction of) as and when required in accordance
herewith the conditions precedent to both parties' obligations hereunder that
are reasonably capable of being performed by that party and to take, or cause to
be taken, all other action and to do, or cause to be done, all other things
necessary, proper or advisable under applicable Laws and regulations to complete
the Arrangement as soon as reasonably practicable and, if reasonably
practicable, on or before December 31, 1996. In particular, and without limiting
the generality of the foregoing, each party shall cooperate with the other party
in the preparation of all necessary documents and filings and in the obtaining
of all governmental and other third party consents, waivers and approvals
necessary or desirable to effect the Arrangement and to satisfy the conditions
precedent to the parties' respective obligations hereunder, including the
obtaining of the Interim Order and the Final Order as provided in section 2.1,
the preparation of the Cableshare Information Circular and the holding of the
Cableshare Shareholders' Meeting. In addition to, but not in limitation of, the
foregoing, Cableshare shall use all reasonable commercial efforts to secure all
consents from the National Research Council or its successors that are necessary
in order for the Arrangement to be completed.
 
8.2    DEFENCE OF PROCEEDINGS. Each party shall defend all lawsuits and other
legal, regulatory or other proceedings challenging or affecting this Agreement
or the consummation of the transactions contemplated hereby and shall use its
best efforts to have lifted or rescinded any injunction or restraining order or
other order that may adversely affect the ability of the parties to consummate
the transactions contemplated hereby.
 
8.3    NOTIFICATION. Each party shall promptly notify the other party orally and
in writing (as and when such party becomes aware of the same) of:
 
      (a) any failure of such party to comply with its obligations under this
          Agreement and any failure or anticipated failure to satisfy any
          condition in favour of that party under this Agreement; and
 
      (b) the taking of any action, act, suit or proceeding of a type described
          in subsection 9.1(d) or 9.2(e).
 
                                       20
<PAGE>   21
 
                                   ARTICLE 9.
 
                 CONDITIONS PRECEDENT TO OBLIGATIONS OF PARTIES
 
9.1    CONDITIONS IN FAVOUR OF BOTH PARTIES. The obligations of each party to
complete the transactions contemplated hereby are subject to the satisfaction or
waiver of the following conditions:
 
      (a) the compliance by the other party in all material respects with its
          covenants made hereunder in favour of such party to be performed on or
          prior to the Effective Date;
 
      (b) the representations and warranties of the other party made hereunder
          in favour of such party being true and accurate in all material
          respects when made and as of the Effective Date;
 
      (c) the receipt of all necessary government, court, regulatory and
          Cableshare shareholder approvals and all necessary waivers, permits,
          consents and orders (including the Interim Order, the Final Order and
          a favourable no action letter from the SEC) in respect of the
          Arrangement, except that neither party may rely on this condition with
          respect to an approval that is or was within the ability of that party
          to give or withhold;
 
      (d) no act, action, suit or proceeding having been commenced or taken
          before or by any domestic or foreign court or tribunal or governmental
          agency or other regulatory authority or administrative agency or
          commission or by any elected or appointed public official or private
          Person (including any individual, corporation, firm, group or other
          entity) in Canada or elsewhere and no Law having been proposed,
          enacted, promulgated or applied to cease trade, enjoin, prohibit,
          unwind or impose material limitations or conditions on the
          transactions contemplated by this Agreement; and
 
      (e) in the event that Exchangeable Shares are to be issued pursuant to
          the Plan of Arrangement, the Trustee having executed and delivered the
          Voting and Exchange Trust Agreement.
 
9.2    CONDITIONS IN FAVOUR OF SOURCE. The obligations of Source to complete the
transactions contemplated hereby are also subject to the satisfaction or waiver
by it of the following conditions:
 
      (a) except as otherwise disclosed in the Cableshare Disclosure Documents
          prior to the date hereof, no material adverse change in the
          operations, capital, investments, financial condition or prospects of
          Cableshare, on a consolidated basis, having occurred since the date of
          the Audited Financial Statements;
 
      (b) Cableshare not having received prior to the Effective Time notice
          from holders of more than 10% of the then outstanding Class A Shares
          or from holders of more than 10% of the then outstanding Class B
          Shares of the intention of such holders to exercise their Dissent
          Rights;
 
      (c) the Exchange Ratio being not less than 5.0;
 
      (d) there not having occurred, developed or come into effect or existence
          any Law, governmental action or enquiry that, in the opinion of
          Source, acting reasonably, materially adversely affects or may
          materially adversely affect the financial condition, operations,
          assets or affairs of Cableshare having regard to the nature of the
          transactions contemplated hereby or to carry on the business of
          Cableshare as currently carried on or as currently proposed to be
          carried on;
 
      (e) no act, action, suit or proceeding having been commenced or taken
          before or by any domestic or foreign court or tribunal or governmental
          agency (including the Director of Investigation and Research appointed
          under the Competition Act (Canada)) or other regulatory authority or
          administrative agency or commission or by any elected or appointed
          public official or private Person (including any individual,
          corporation, firm, group or other entity) in Canada or elsewhere and
          no Law or policy shall have been proposed, enacted, promulgated or
          applied to cease trade, enjoin, prohibit, unwind or impose material
          limitations or conditions on the right of Source to own or exercise
          full rights of ownership of the Cableshare New Common Shares after the
          Effective Date;
 
      (f) the receipt by Cableshare of all consents, waivers or approvals of
          the National Research Council as may be necessary in connection with
          the completion of the Arrangement;
 
                                       21
<PAGE>   22
 
      (g) all of the directors of Cableshare having tendered their resignations
          as directors of Cableshare, which resignations shall be in form and
          substance satisfactory to Source, acting reasonably, and each of which
          shall be effective upon acceptance by Cableshare following the
          Effective Time; and
 
      (h) Cableshare having delivered to Source a certificate of a senior
          officer certifying, with respect to the covenants, representations and
          warranties made by it in favour of Source, the matters set forth in
          subsections 9.1(a) and (b).
 
9.3    CONDITIONS IN FAVOUR OF CABLESHARE. The obligations of Cableshare to
complete the transactions contemplated hereby are also subject to Source having
delivered to Cableshare a certificate of a senior officer of Source certifying,
with respect to the covenants, representations and warranties made by Source in
favour of Cableshare, the matters set forth in subsections 9.1(a) and (b).
 
                                  ARTICLE 10.
 
                           AMENDMENT AND TERMINATION
 
10.1   TERMINATION. This Agreement may be terminated only as follows:
 
      (a) by agreement in writing by both parties;
 
      (b) by either party upon written notice to the other party, provided that
          there is no inaccuracy in or breach of any representation, warranty or
          covenant made herein by the party giving such notice, if the Effective
          Date has not occurred prior to the Termination Date;
 
      (c) by either party upon written notice to the other party, provided that
          there is no inaccuracy in or breach of any representation, warranty or
          covenant made herein by the party giving such notice, if a condition
          in favour of the party giving notice has not been satisfied by the
          Effective Date (or has become at any time prior thereto impossible to
          satisfy) and has not been waived by that party; or
 
      (d) by Cableshare upon written notice to Source if Cableshare's board of
          directors has withdrawn, suspended, modified or amended the
          Recommendation or shall have resolved to do any of the foregoing.
 
10.2   EFFECT OF TERMINATION. If this Agreement is terminated in accordance with
section 10.1, then neither party shall have any further liability to perform its
obligations hereunder, except those set forth in sections 10.3 and 11.4, which
shall survive any termination of this Agreement, and provided that neither the
termination of this Agreement nor anything contained in this section 10.2 shall
relieve any party from any liability for any breach by it of this Agreement,
including from any inaccuracy in its representations and warranties and any
non-performance by it of it covenants made herein.
 
10.3   EXPENSES. Source shall reimburse Cableshare for all reasonable
out-of-pocket expenses incurred by Cableshare in connection with this Agreement
and the transactions contemplated hereby within 30 days of Cableshare submitting
evidence of its expenses, unless Source shall be entitled to terminate this
Agreement by reason of any inaccuracy in or breach of any representation,
warranty or covenant made herein by Cableshare. Except as specifically provided
herein, and in section 2.6, the costs and expenses incurred in connection with
this Agreement and the transactions contemplated hereby shall be paid and borne
by the party incurring the same.
 
10.4   AMENDMENT. At any time prior to the commencement of the Cableshare
Shareholders' Meeting, or at any time thereafter if the Arrangement is not
approved by the requisite thresholds of votes cast thereat, this Agreement may
be amended by the parties hereto, but only by agreement in writing executed and
delivered by both of them. In other circumstances, this Agreement shall not be
amended in a manner prejudicial to holders of Class A Shares or Class B Shares
without an agreement in writing by both parties and the approval of the
Cableshare shareholders given in the same manner as required for the approval of
the Arrangement or as may be ordered by the Court.
 
10.5   WAIVER WITHOUT PREJUDICE. Any party may, by written instrument,
unilaterally waive performance or satisfaction of any covenant or condition in
its favour, in each case without further notice to or authorization
 
                                       22
<PAGE>   23
 
on the part of the Cableshare shareholders or the Court except as required by
Law, and any such waiver shall be without prejudice to that party's other
rights. No failure to exercise or delay in exercising any right or remedy
hereunder or at Law on the part of either party shall impair such right or the
availability of such remedy of such party or shall be construed as a waiver of,
or acquiescence in, any breach of any representation, warranty or covenant
contained herein, nor shall any single or partial exercise of any such right or
remedy preclude any other or further exercise thereof or of any other right or
remedy. All rights and remedies existing under this Agreement are cumulative
with, and not exclusive of, each other and any rights or remedies otherwise
available.
 
                                  ARTICLE 11.
 
                                    GENERAL
 
11.1   NOTICES. Any notice or other communication required or permitted to be
given hereunder shall be in writing and shall be delivered in person or
transmitted by telecopy or similar means of recorded electronic communication as
follows:
 
      (a) if to Source:        Source Media, Inc.
                               8140 Walnut Hill Lane
                               Suite 1000
                               Dallas, Texas 75231
                               U.S.A.
                               Attention:  Chairman and CEO
                               Telecopier: (214) 890-9132

      (b) if to Cableshare:    Cableshare Inc.
                               150 Dufferin Avenue
                               Suite 906
                               London, Ontario
                               Canada N6A 5N6
                               Attention:  President
                               Telecopier: (519) 663-0339
 
Any such notice or other communication shall be deemed to have been given and
received on the day on which it was delivered or transmitted or, if such day is
not a Business Day, on the next following Business Day.
 
11.2   SURVIVAL. The respective representations, warranties and covenants of the
parties contained herein shall expire and be terminated and extinguished at the
Effective Time unless otherwise specified.
 
11.3   FURTHER ASSURANCES. Each party shall promptly furnish each other party
with such further documents and take or cause to be taken such further actions
as may be reasonably required in order to effectuate this Agreement and the
Arrangement. Each party hereto agrees to execute and deliver such instruments
and documents as are reasonably required in order to carry out the intent of
this Agreement.
 
11.4   PUBLIC ANNOUNCEMENTS. Subject to applicable Law and the policies of any
stock exchange on which securities of the applicable party are listed and, in
the case of Cableshare, to subsection 6.8(b), each party agrees not to make any
public announcement regarding this Agreement or the transactions contemplated
hereby without the prior consent of the other party, not to be unreasonably
withheld or delayed.
 
11.5   BINDING EFFECT AND ASSIGNMENT. This Agreement and all the provisions
hereof shall be binding upon and enure to the benefit of the parties hereto and
their respective successors and permitted assigns. Neither this Agreement nor
any of the rights hereunder or under the Arrangement shall be assigned by any
party hereto without the prior written consent of the other party hereto, except
that Source may assign its rights hereunder to an "affiliate", as that term is
defined in the Act, provided that Source remains liable for all of its
obligations hereunder. Nothing in this Agreement, express or implied, is
intended to confer upon any other Person any rights or remedies of any nature
whatsoever under or by reason of this Agreement.
 
11.6   WAIVER OF JURY TRIAL. Each party hereby irrevocably waives to the fullest
extent permitted by Law all rights to trial by jury in any action, proceeding or
counterclaim (whether based upon contract, tort or
 
                                       23
<PAGE>   24
 
otherwise) arising out of or relating to this Agreement or any of the
transactions contemplated hereby. Each party (a) certifies that no
representative, agent or counsel of the other party has represented expressly or
otherwise that the other party would not, in the event of litigation, seek to
enforce the foregoing waiver, and (b) acknowledges that it and the other party
have been induced to enter into this Agreement by, among other things, the
mutual waivers and certifications contained in this section.
 
11.7   SEVERABILITY. If any provision of this Agreement, or the application
thereof, is determined for any reason and to any extent to be invalid or
unenforceable, the remainder of this Agreement and the application of such
provision to other Persons and circumstances shall remain in full force and
effect provided that the legal or economic substance of the transactions
contemplated hereby is not thereby affected in a manner adverse to either party.
Upon a determination that any provision of this Agreement, or the application
hereof, is for any reason or to any extent invalid or unenforceable, the parties
shall negotiate in good faith to replace such invalid or unenforceable provision
with a valid and enforceable provision that will achieve, to the greatest extent
possible, the economic, legal, business and other purposes of the invalid or
unenforceable provision.
 
11.8   SPECIFIC PERFORMANCE. The parties hereto agree that, if any covenant
under this Agreement is not performed in accordance with its specific terms or
is otherwise breached, irreparable damages would result, no adequate remedy at
law, including the payment of damages, would exist, and damages would, in any
event, be difficult to determine, so that the party in favour of whom such
covenant is made shall be entitled to specific performance of the terms of this
Agreement in addition to any other remedy at law or in equity.
 
11.9   CONSTRUCTION. Each party acknowledges that its legal counsel has reviewed
and participated in settling the terms of this Agreement, and that any rule of
construction to the effect that any ambiguity is to be resolved against the
drafting party (such as the rule of construction of contra proferentem) shall
not be applicable in the interpretation of this Agreement.
 
11.10 TIME OF THE ESSENCE. Time shall be of the essence of this Agreement.
 
11.11 GOVERNING LAW. This Agreement shall be construed, interpreted and enforced
in accordance with, and the respective rights and obligations of the parties
shall be governed by, the laws of the Province of Ontario and the federal laws
of Canada applicable therein.
 
11.12 COUNTERPARTS. This Agreement may be executed in counterparts, each of
which shall constitute an original and all of which when taken together shall
constitute one and the same instrument.
 
      IN WITNESS WHEREOF this Agreement has been executed on the date first
written above.
 
                                            SOURCE MEDIA, INC.
 
                                            by
                                              ---------------------------------
                                            
                                            -----------------------------------


                                            CABLESHARE INC.
 
                                            by
                                              ---------------------------------

                                            -----------------------------------


                                       24

<PAGE>   1
 
                                                                   EXHIBIT 10.19
 
                              PLAN OF ARRANGEMENT
                               UNDER SECTION 182
                   OF THE BUSINESS CORPORATIONS ACT (ONTARIO)
 
                                   ARTICLE 1
 
                                 INTERPRETATION
 
1.1    DEFINITIONS
 
      In this Plan of Arrangement unless there is something in the subject
matter or context inconsistent therewith, the following terms shall have the
respective meanings set out below and grammatical variations of such terms shall
have corresponding meanings:
 
      "ACT" means the Business Corporations Act (Ontario), R.S.O. 1990, c. B.16.
 
      "ARRANGEMENT" means the arrangement under section 182 of the Act on the
      terms and subject to the conditions set out in this Plan of Arrangement,
      subject to any amendments thereto made in accordance with section 10.4 of
      the Arrangement Agreement or made at the direction of the Court in the
      Final Order.
 
      "ARRANGEMENT AGREEMENT" means the agreement made between Source and
      Cableshare as of November 13, 1996, as amended, supplemented and/or
      restated in accordance therewith prior to the Effective Date, providing
      for, among other things, the Arrangement.
 
      "ARRANGEMENT RESOLUTION" means the special resolution passed by the
      holders of the Class A Shares and Class B Shares at the Cableshare
      Shareholders' Meeting.
 
      "AUTOMATIC REDEMPTION DATE" has the meaning ascribed thereto in the
      Exchangeable Share Provisions.
 
      "AVERAGE TRADING PRICE OF SOURCE COMMON SHARES" means the number that
      equals the weighted average trading price, denominated in U.S. dollars, of
      Source Common Shares as reported on NASDAQ for the 20 days on which
      trading took place on NASDAQ ending on the Determination Date.
 
      "BUSINESS DAY" means a day which is not a Saturday, Sunday, a statutory
      holiday within the meaning of the Interpretation Act (Canada) or a day on
      which banks are required or permitted by law to be closed for business in
      Toronto, Ontario.
 
      "CABLESHARE" means Cableshare Inc., a corporation subsisting under the
      Act.
 
      "CABLESHARE INFORMATION CIRCULAR" means the management information
      circular of Cableshare to be prepared and sent to the shareholders of
      Cableshare in connection with the Cableshare Shareholders' Meeting.
 
      "CABLESHARE NEW COMMON SHARES" means shares in the class of common shares
      in the capital of Cableshare described in either paragraph 2.2(a)(i) or
      2.3(a)(ii), as applicable.
 
      "CABLESHARE SHAREHOLDERS' MEETING" means the annual and special meeting of
      the shareholders of Cableshare (including any adjournment thereof) that is
      to be convened as provided by the Interim Order to consider, and if deemed
      advisable, approve the Arrangement.
 
      "CERTIFICATE" means the certificate of arrangement giving effect to the
      reorganization of, and amendments to, the share capital of Cableshare
      effected by the Arrangement, issued pursuant to subsection 183(2) of the
      Act after the Articles of Arrangement have been filed.
 
      "CLASS A SHARES" means the Class A Subordinate Voting Shares without par
      value in the capital of Cableshare.
 
      "CLASS B SHARES" means the Class B Multiple Voting Shares without par
      value in the capital of Cableshare.
 
                                        1
<PAGE>   2
 
      "COURT" means the Ontario Court of Justice (General Division).
 
      "DEPOSITARY" means Montreal Trust Company of Canada at its principal
      office in Toronto, Ontario.
 
      "DETERMINATION DATE" means the day which is the second Business Day prior
      to the date of the Cableshare Shareholders' Meeting.
 
      "DETERMINATION DATE FOREIGN EXCHANGE RATE" means the number (including any
      decimal fraction) which is the value in Canadian dollars of one U.S.
      dollar at the rate of exchange equal to the Bank of Canada's noon rate for
      such currencies on the Determination Date.
 
      "DISSENT PROCEDURES" has the meaning set out in section 3.1.
 
      "DISSENTING SHAREHOLDER" means a holder of Class A Shares or Class B
      Shares who dissents in respect of the Arrangement in strict compliance
      with the Dissent Procedures.
 
      "EFFECTIVE DATE" means the date shown on the Certificate.
 
      "EFFECTIVE TIME" means 12:01 a.m. on the Effective Date.
 
      "ELECTED CABLESHARE SHARE" means any Class A Share or Class B Share that
      the holder shall have elected, in a duly completed Letter of Transmittal
      received by the Transfer Agent no later than 5:00 p.m. (Toronto time) on
      the second Business Day immediately preceding the day of the Cableshare
      Shareholders' Meeting, to exchange and convert under the Arrangement into
      a fraction of an Exchangeable Share.
 
      "EXCHANGE RATIO" means the number equal to the lesser of: (a) the Average
      Trading Price of Source Common Shares multiplied by the Determination Date
      Foreign Exchange Rate and divided by C$2.25; and (b) 7.5.
 
      "EXCHANGEABLE SHARE CONDITION" shall mean the condition to be satisfied
      for Exchangeable Shares to be authorized and issued pursuant to the
      Arrangement.
 
      "EXCHANGEABLE SHARE PROVISIONS" means the rights, privileges, restrictions
      and conditions attaching to the Exchangeable Shares.
 
      "EXCHANGEABLE SHARES" means shares in the class of NonVoting Exchangeable
      Shares in the capital of Cableshare described in paragraph 2.2(a)(ii).
 
      "FINAL ORDER" means the final order of the Court approving the
      Arrangement.
 
      "INTERIM ORDER" means the interim order of the Court made in connection
      with the process for obtaining shareholder approval of the Arrangement and
      related matters.
 
      "LETTER OF TRANSMITTAL" means a Letter of Transmittal in the form
      accompanying the Cableshare Information Circular.
 
      "LIQUIDATION CALL RIGHT" has the meaning ascribed thereto in subsection
      5.1(a).
 
      "LIQUIDATION DATE" has the meaning ascribed thereto in the Exchangeable
      Share Provisions.
 
      "NASDAQ" means the National Association of Securities Dealers Automated
      Quotation National System.
 
      "PERSON" includes any individual, firm, partnership, joint venture,
      venture capital fund, association, trust, trustee, executor,
      administrator, legal personal representative, estate, group, body
      corporate, corporation, unincorporated association or organization,
      government body, syndicate or other entity, whether or not having legal
      status.
 
      "REDEMPTION CALL RIGHT" has the meaning ascribed thereto in subsection
      5.2(a).
 
      "SOURCE" means Source Media, Inc., a corporation subsisting under the laws
      of the State of Delaware.
 
      "SOURCE AFFILIATE" means either of IT Network, Inc., a Texas corporation,
      or 997758 Ontario Inc., an Ontario corporation, and "SOURCE AFFILIATES"
      means both of them.
 
      "SOURCE COMMON SHARE" means a share of common stock of Source, par value
      U.S.$0.001.
 
                                        2
<PAGE>   3
 
1.2    SECTIONS AND HEADINGS
 
      The division of this Plan of Arrangement into sections and the insertion
of headings are for reference purposes only and shall not affect the
interpretation of this Plan of Arrangement. Unless otherwise indicated, any
reference in this Plan of Arrangement to a section or an Appendix refers to the
specified section of or Appendix to this Plan of Arrangement.
 
1.3    NUMBER, GENDER AND PERSONS
 
      In this Plan of Arrangement, unless the context otherwise requires, words
importing the singular number include the plural and vice versa, words importing
any gender include all genders and words importing Persons include individuals,
corporations, partnerships, associations, trusts, unincorporated organizations,
governmental bodies and other legal or business entities of any kind.
 
                                   ARTICLE 2
 
                                  ARRANGEMENT
 
2.1    SATISFACTION OF EXCHANGEABLE SHARE CONDITION
 
      The Exchangeable Share Condition shall be deemed to have been satisfied if
the number of Elected Cableshare Shares exceeds 50% of the number of Cableshare
Shares held of record on the record date for the Cableshare Shareholders'
Meeting by Persons having an address in Canada as indicated in the shareholder
register of Cableshare maintained by the Transfer Agent, and it shall be deemed
not to have been satisfied in every other circumstance.
 
2.2    ARRANGEMENT -- WITH SATISFACTION OF EXCHANGEABLE SHARE CONDITION
 
      At the Effective Time on the Effective Date, provided that the
Exchangeable Share Condition shall have been satisfied, the capital of
Cableshare shall be reorganized, in the course of which the following shall
occur and shall be deemed to occur in the following order without any further
act or formality:
 
      (a) the authorized share capital of Cableshare shall be increased by the
          creation of:
 
          (i)   an unlimited number of a new class of common shares ("Cableshare
                New Common Shares");
 
          (ii)  an unlimited number of a new class of exchangeable shares
                ("Exchangeable Shares"); and
 
          (iii) an unlimited number of a new class of preference shares,
                issuable in series,
 
          and each such class shall have attached thereto the rights,
          privileges, restrictions and conditions respectively set out in
          Appendix A hereto;
 
      (b) the authorized share capital of Cableshare shall be decreased by
          cancelling all of the authorized but unissued Class A Shares and Class
          B Shares;
 
      (c) each shareholder of Cableshare who has properly elected to do so
          shall have the Elected Cableshare Shares held by it exchanged for and
          converted into that number of Exchangeable Shares that is equal to the
          number of Elected Cableshare Shares held of record by it divided by
          the Exchange Ratio, and the Elected Cableshare Shares shall thereupon
          be cancelled and the name of each such holder shall be removed from
          the registers of holders of Class A Shares and Class B Shares and
          added to the register of holders of Exchangeable Shares accordingly;
 
      (d) the Class A Shares and Class B Shares held of record by each other
          Cableshare Shareholder (other than Dissenting Shareholders who are
          ultimately entitled to be paid the fair value of the Class A Shares
          and Class B Shares held by them and other than Source Affiliates) will
          automatically be exchanged for that number of fully paid and
          non-assessable Source Common Shares equal to the number of Class A
          Shares and Class B Shares so exchanged divided by the Exchange Ratio;
 
      (e) in connection with the exchange referred to in subsection 2.2(d)
          above, each holder of Class A Shares and Class B Shares (other than
          Dissenting Shareholders who are ultimately entitled to be
 
                                        3
<PAGE>   4
 
          paid the fair value of the Class A Shares and Class B Shares held by
          them and other than Source Affiliates), will be deemed to have
          transferred each Class A Share and Class B Share held of record by it
          to Source and Source will issue in exchange to each such holder that
          number of fully paid and non-assessable Source Common Shares equal to
          the number of Class A Shares and Class B Shares so transferred by such
          holder divided by the Exchange Ratio, and the name of each such holder
          will be removed from the register of holders of Class A Shares and
          Class B Shares and added to the register of holders of Source Common
          Shares accordingly;
 
      (f) upon the exchange referred to in subsection 2.2(d) above, Source 
          shall become the holder of all the issued and outstanding Class A
          Shares and Class B Shares, other than those held by Source Affiliates,
          and Source's name will be added to the register of holders of Class A
          Shares and Class B Shares accordingly; and
 
      (g) immediately following the exchanges and conversions of shares
          outlined above, each issued and outstanding Class A Share and Class B
          Share will be converted into one Cableshare New Common Share, and such
          Class A Shares and Class B Shares shall thereupon be cancelled and the
          name of each holder thereof be removed from the registers of holders
          of Class A Shares and Class B Shares and added to the register of
          holders of Cableshare New Common Shares accordingly.
 
2.3    ARRANGEMENT -- WITHOUT SATISFACTION OF EXCHANGEABLE SHARE CONDITION
 
      At the Effective Time on the Effective Date, in every circumstance other
than that governed by section 2.2, the capital of Cableshare shall be
reorganized, in the course of which the following shall occur and shall be
deemed to occur in the following order without any further act or formality:
 
      (a) the authorized share capital of Cableshare shall be increased by the
          creation of:
 
          (i)   an unlimited number of a new class of common shares ("Cableshare
                New Common Shares"); and
 
          (ii)  an unlimited number of a new class of preference shares,
                issuable in series,
 
          and each such class shall have attached thereto the rights,
          privileges, restrictions and conditions respectively set out in
          Appendix A hereto;
 
      (b) the authorized share capital of Cableshare shall be decreased by
          cancelling all of the authorized but unissued Class A Shares and Class
          B Shares;
 
      (c) the Class A Shares and Class B Shares held of record by each
          Cableshare Shareholder (other than Dissenting Shareholders who are
          ultimately entitled to be paid the fair value of the Class A Shares
          and Class B Shares held by them and other than Source Affiliates) will
          automatically be exchanged for that number of fully paid and
          non-assessable Source Common Shares equal to the number of Class A
          Shares and Class B Shares so exchanged divided by the Exchange Ratio;
 
      (d) in connection with the exchange referred to in subsection 2.3(c)
          above, each holder of Class A Shares and Class B Shares (other than
          Dissenting Shareholders who are ultimately entitled to be paid the
          fair value of the Class A Shares and Class B Shares held by them and
          other than Source Affiliates) will be deemed to have transferred each
          Class A Share and Class B Share held of record by it to Source and
          Source will issue in exchange to each such holder that number of fully
          paid and non-assessable Source Common Shares equal to the number of
          Class A Shares and Class B Shares so transferred by such holder
          divided by the Exchange Ratio, and the name of each such holder will
          be removed from the registers of holders of Class A Shares and Class B
          Shares and added to the register of holders of Source Common Shares
          accordingly;
 
      (e) upon the exchange referred to in subsection 2.3(c) above, Source
          shall become the holder of all the issued and outstanding Class A
          Shares and Class B Shares, other than those held by Source Affiliates,
          and Source's name will be added to the registers of holders of Class A
          Shares and Class B Shares accordingly; and
 
                                        4
<PAGE>   5
 
      (f) immediately following the exchanges and conversion of shares outlined
          above, each issued and outstanding Class A Share and Class B Share
          will be converted into one Cableshare New Common Share and such Class
          A Shares and Class B Shares shall thereupon be cancelled and the name
          of each holder thereof will be removed from the registers of holders
          of Class A Shares and Class B Shares and added to the register of
          holders of Cableshare New Common Shares accordingly.
 
2.4    STATED CAPITAL
 
       For purposes of the Act:
 
      (a) the aggregate stated capital attributable to the Cableshare New
          Common Shares will be equal to the aggregate stated capital
          attributable to the Class A Shares and Class B Shares exchanged for
          and converted into the Cableshare New Common Shares, as it was
          immediately prior to the Effective Time; and
 
      (b) the aggregate stated capital of all Exchangeable Shares issued on the
          conversion described in subsection 2.2(c), in the event the
          Exchangeable Share Condition is satisfied, will be equal to the
          aggregate stated capital attributable to the Class A Shares and Class
          B Shares exchanged for and converted into Exchangeable Shares, as it
          was immediately prior to the Effective Time.
 
                                   ARTICLE 3
 
                               RIGHTS OF DISSENT
 
3.1   RIGHTS OF DISSENT
 
      Holders of Class A Shares and Class B Shares may exercise rights of
dissent with respect to such shares pursuant to and in the manner set forth in
section 185 of the Act and this section 3.1 (the "Dissent Procedures") in
connection with the Arrangement and holders who duly exercise such rights of
dissent and who:
 
      (a) are ultimately entitled to be paid fair value for their Class A
          Shares and Class B Shares shall be deemed to have transferred such
          Class A Shares and Class B Shares to Source for cancellation on the
          Effective Date; or
 
      (b) are ultimately not entitled, for any reason, to be paid fair value
          for their Class A Shares and Class B Shares shall be deemed to have
          participated in the Arrangement on the same basis as any
          non-dissenting holder of Class A Shares or Class B Shares other than a
          holder of Elected Cableshare Shares, and shall receive Source Common
          Shares on the basis determined in accordance with subsection 2.2(d) or
          2.3(c) (as applicable) of this Plan of Arrangement,
 
but in no case shall Source or Cableshare or any other Person be required to
recognize such holders as holders of Class A Shares, Class B Shares or
Cableshare New Common Shares after the Effective Time, and the names of such
holders of Class A Shares and Class B Shares shall be deleted from the registers
of holders of Class A Shares and Class B Shares at the Effective Time in the
manner provided in section 2.2 or 2.3 (as applicable).
 
                                   ARTICLE 4
 
                       CERTIFICATES AND FRACTIONAL SHARES
 
4.1   ISSUANCE OF CERTIFICATES REPRESENTING EXCHANGEABLE SHARES
 
      At or promptly after the Effective Time, in the event the Exchangeable
Share Condition has been satisfied, Cableshare shall deposit with the
Depositary, for the benefit of the holders of Elected Cableshare Shares,
certificates representing the Exchangeable Shares issued pursuant to subsection
2.2(c) upon the exchange and conversion of outstanding Elected Cableshare
Shares. Upon surrender to the Depositary for cancellation of a certificate which
immediately prior to the Effective Time represented one or more outstanding
Elected Cableshare Shares that were exchanged for and converted into one or more
Exchangeable Shares under the Arrangement, together with such other documents
and instruments as would have been
 
                                        5
<PAGE>   6
 
required to effect the transfer of the shares formerly represented by such
certificate under the Act and the by-laws of Cableshare and such additional
documents and instruments as the Depositary may reasonably require, the holder
of such surrendered certificate shall be entitled to receive in exchange
therefor, and the Depositary shall deliver to such holder, a certificate
representing that number (rounded down to the nearest whole number) of
Exchangeable Shares which such holder has the right to receive (together with
any dividends or distributions with respect thereto pursuant to section 4.3 and
any cash in lieu of fractional Exchangeable Shares pursuant to section 4.4), and
the certificate so surrendered shall forthwith be cancelled. In the event of a
transfer of ownership of Elected Cableshare Shares that is not registered in the
transfer records of Cableshare, and in the event the Exchangeable Share
Condition has been satisfied, a certificate representing the proper number of
Exchangeable Shares may be issued to the transferee if the certificate
representing such Elected Cableshare Shares is presented to the Depositary,
accompanied by all documents required to evidence and effect such transfer.
Until surrendered as contemplated by this section 4.1, and in the event the
Exchangeable Share Condition has been satisfied, each certificate which
immediately prior to the Effective Time represented outstanding Elected
Cableshare Shares that were converted into Exchangeable Shares shall be deemed
at any time after the Effective Time to represent only the right to receive upon
such surrender (i) the certificate representing Exchangeable Shares as
contemplated by this section 4.1, (ii) a cash payment in lieu of any fractional
Exchangeable Shares as contemplated by section 4.4, and (iii) any dividends or
distributions with a record date after the Effective Time theretofore paid or
payable with respect to Exchangeable Shares as contemplated by section 4.3.
 
4.2   EXCHANGE OF CERTIFICATES FOR SOURCE COMMON SHARES
 
      At or promptly after the Effective Time, Source shall deposit with the
Depositary, for the benefit of the holders of Class A Shares and Class B Shares
exchanged for Source Common Shares pursuant to subsection 2.2(d) or 2.3(c) (as
applicable), certificates representing the Source Common Shares issued pursuant
to subsection 2.2(d) or 2.3(c) (as applicable) in exchange for outstanding Class
A Shares and Class B Shares. Upon surrender to the Depositary for cancellation
of a certificate which immediately prior to the Effective Time represented
outstanding Class A Shares or Class B Shares that were exchanged for Source
Common Shares, together with such other documents and instruments as would have
been required to effect the transfer of the shares formerly represented by such
certificate under the Act and the by-laws of Cableshare and such additional
documents and instruments as the Depositary may reasonably require, the holder
of such surrendered certificate shall be entitled to receive in exchange
therefor, and the Depositary shall deliver to such holder, a certificate
representing that number (rounded down to the nearest whole number) of Source
Common Shares which such holder has the right to receive (together with any
dividends or distributions with respect thereto pursuant to section 4.3 and any
cash in lieu of fractional Source Common Shares pursuant to section 4.4), and
the certificate so surrendered shall forthwith be cancelled. In the event of a
transfer of ownership of Class A Shares or Class B Shares (other than, in the
event the Exchangeable Share Condition has been satisfied, Elected Cableshare
Shares) which is not registered in the transfer records of Cableshare, a
certificate representing the proper number of Source Common Shares may be issued
to the transferee if the certificate representing such Class A or Class B Shares
is presented to the Depositary, accompanied by all documents required to
evidence and effect such transfer. Until surrendered as contemplated by this
section 4.2, each certificate which immediately prior to the Effective Time
represented one or more outstanding Class A Shares or Class B Shares that were
exchanged for one or more Source Common Shares shall be deemed at any time after
the Effective Time to represent only the right to receive upon such surrender
(i) the certificate representing Source Common Shares as contemplated by this
section 4.2, (ii) a cash payment in lieu of any fractional Source Common Shares
as contemplated by section 4.4 and (iii) any dividends or distributions with a
record date after the Effective Time theretofore paid or payable with respect to
Source Common Shares as contemplated by section 4.3.
 
4.3   DISTRIBUTIONS WITH RESPECT TO UNSURRENDERED CERTIFICATES
 
      No dividends or other distributions declared or made after the Effective
Time with respect to Exchangeable Shares or Source Common Shares with a record
date after the Effective Time shall be paid to the holder of any unsurrendered
certificate which immediately prior to the Effective Time represented
outstanding Class A Shares or Class B Shares that were converted and/or
exchanged pursuant to section 2.2
 
                                        6
<PAGE>   7
 
or 2.3 (as applicable), and no cash payment in lieu of fractional shares shall
be paid to any such holder pursuant to section 4.4, unless and until the holder
of record of such certificate shall surrender such certificate in accordance
with section 4.1 or 4.2. Subject to applicable law, at the time of such
surrender of any such certificate, there shall be paid to the record holder of
the certificates representing whole Exchangeable Shares or Source Common Shares,
as the case may be, without interest (i) the amount of any cash payable in lieu
of a fractional Exchangeable Share or Source Common Share to which such holder
is entitled pursuant to section 4.4, (ii) the amount of dividends or other
distributions with a record date after the Effective Time theretofore paid with
respect to such whole Exchangeable Share or Source Common Share, as the case may
be, and (iii) at the appropriate payment date, the amount of dividends or other
distributions with a record date after the Effective Time but prior to surrender
and a payment date subsequent to surrender payable with respect to such whole
Exchangeable Share or Source Common Share, as the case may be.
 
4.4   NO FRACTIONAL SHARES
 
      No certificates or scrip representing fractional Exchangeable Shares or
Source Common Shares shall be issued upon the surrender for exchange of
certificates pursuant to section 4.1 or 4.2 and, subject to the last sentence of
this section 4.4, no dividend, stock split or other change in the capital
structure of Cableshare or Source shall relate to any such fractional security
and such fractional interests shall not entitle the owner thereof to vote or to
exercise any rights as a security holder of Cableshare or Source. In lieu of any
such fractional securities:
 
      (a) each Person entitled to a fractional interest in an Exchangeable
          Share will receive a cash payment equal to such Person's pro rata
          portion of the net proceeds after expenses received by the Depositary
          upon the sale of whole shares representing an accumulation of all
          fractional interests in Exchangeable Shares to which all such Persons
          would otherwise be entitled. The Depositary will sell such
          Exchangeable Shares involved by private sale as soon as reasonably
          practicable following the Effective Date. The aggregate net proceeds
          after expenses of such sale will be distributed by the Depositary, pro
          rata in relation to the respective fractions, among the Persons
          otherwise entitled to receive fractional interests in Exchangeable
          Shares; and
 
      (b) each Person entitled to a fractional interest in a Source Common
          Share will receive a cash payment equal to such Person's pro rata
          portion of the net proceeds after expenses received by the Depositary
          upon the sale of whole shares representing an accumulation of all
          fractional interests in Source Common Shares to which all such Persons
          would otherwise be entitled. The Depositary will sell such Source
          Common Shares involved on NASDAQ as soon as practicable following the
          Effective Date. The aggregate net proceeds after expenses of such sale
          will be distributed by the Depositary, pro rata in relation to the
          respective fractions, among the Persons otherwise entitled to receive
          fractional interests in Source Common Shares.
 
4.5   LOST CERTIFICATES
 
      In the event any certificate which immediately prior to the Effective Time
represented one or more outstanding Class A Shares or Class B Shares that were
converted and/or exchanged pursuant to section 2.2 or 2.3 (as applicable) shall
have been lost, stolen or destroyed, upon the making of an affidavit of that
fact by the Person claiming such certificate to be lost, stolen or destroyed,
the Depositary will issue in exchange for such lost, stolen or destroyed
certificate, one or more certificates representing one or more Exchangeable
Shares or Source Common Shares (and any dividends or distributions with respect
thereto and any cash pursuant to section 4.4) deliverable in respect thereof as
determined in accordance with section 2.2 or 2.3 (as applicable). When
authorizing such payment in exchange for any lost, stolen or destroyed
certificate, the Person to whom certificates representing Exchangeable Shares or
Source Common Shares are to be issued shall, as a condition precedent to the
issuance thereof, give a bond satisfactory to Cableshare or Source, as the case
may be, in such sum as Cableshare or Source may, acting reasonably, direct or
otherwise indemnify Cableshare or Source in a manner satisfactory to Cableshare
or Source, acting reasonably, against any claim that may be made against
Cableshare or Source with respect to the certificate alleged to have been lost,
stolen or destroyed.
 
                                        7
<PAGE>   8
 
4.6   EXTINCTION OF RIGHTS
 
      Any certificate which immediately prior to the Effective Time represented
outstanding Class A Shares or Class B Shares that were converted and/or
exchanged pursuant to section 2.2 or 2.3 (as applicable) and not deposited, with
all other instruments required by section 4.1 or 4.2, on or prior to the third
anniversary of the Effective Date shall cease to represent a claim or interest
of any kind or nature as a shareholder of Cableshare or Source. On such date,
the Exchangeable Shares or Source Common Shares to which the former registered
holder of the certificate referred to in the preceding sentence was ultimately
entitled shall be deemed to have been surrendered to Cableshare or Source, as
the case may be, together with all entitlements to dividends, distributions and
interests thereon held for such former registered holder.
 
4.7   WITHHOLDING RIGHTS
 
      Cableshare, Source and the Transfer Agent shall be entitled to deduct and
withhold from any dividend or consideration otherwise payable under this Plan of
Arrangement to any holder of Class A Shares, Class B Shares, Cableshare New
Common Shares, Source Common Shares or Exchangeable Shares such amounts as
Cableshare, Source or the Transfer Agent is required or permitted to deduct and
withhold with respect to such payment under the Income Tax Act (Canada), the
United States Internal Revenue Code of 1986 or any provision of provincial,
state, local or foreign tax law, in each case as amended. To the extent that
amounts are so withheld, such withheld amounts shall be treated for all purposes
hereof as having been paid to the holder of the shares in respect of which such
deduction and withholding was made, provided that such withheld amounts are
actually remitted to the appropriate taxing authority. To the extent that the
amount so required or permitted to be deducted or withheld from any payment to a
holder exceeds the cash portion of the consideration otherwise payable to the
holder, Cableshare, Source and the Transfer Agent are hereby authorized to sell
or otherwise dispose of such portion of the consideration as is necessary to
provide sufficient funds to Cableshare, Source or the Transfer Agent, as the
case may be, to enable it to comply with such deduction or withholding
requirement and Cableshare, Source or the Transfer Agent shall notify the holder
thereof and remit any unapplied balance of the net proceeds of such sale.
 
                                   ARTICLE 5
 
            CERTAIN RIGHTS OF SOURCE TO ACQUIRE EXCHANGEABLE SHARES
 
5.1   SOURCE LIQUIDATION CALL RIGHT
 
      (a) Source shall have the overriding right (the "Liquidation Call Right"),
          in the event of and notwithstanding the proposed liquidation,
          dissolution or winding-up of Cableshare pursuant to Article 5 of the
          Exchangeable Share Provisions, to purchase from all but not less than
          all of the holders of Exchangeable Shares on the Liquidation Date all
          but not less than all of the Exchangeable Shares held by each such
          holder on payment by Source of an amount per share equal to (a) the
          Current Market Price (as defined in the Exchangeable Share Provisions)
          of a Source Common Share on the last Business Day prior to the
          Liquidation Date, which shall be satisfied in full by causing to be
          delivered to such holder one Source Common Share, plus (b) an
          additional amount equivalent to the full amount of all dividends then
          declared and unpaid on such Exchangeable Share (collectively the
          "Liquidation Call Purchase Price"). In the event of the exercise of
          the Liquidation Call Right by Source, each holder shall be obligated
          to sell all the Exchangeable Shares held by the holder to Source on
          the Liquidation Date on payment by Source to the holder of the
          Liquidation Call Purchase Price for each such share.
 
      (b) To exercise the Liquidation Call Right, Source must notify 
          Cableshare's transfer agent (the "Transfer Agent"), as agent for the
          holders of Exchangeable Shares, and Cableshare of Source's intention
          to exercise such right at least 45 days before the Liquidation Date in
          the case of a voluntary liquidation, dissolution or winding-up of
          Cableshare and at least five Business Days before the Liquidation Date
          in the case of an involuntary liquidation, dissolution or winding-up
          of Cableshare. The Transfer Agent will notify the holders of
          Exchangeable Shares as to whether or not Source has exercised the
          Liquidation Call Right forthwith after the expiry of the period during
          which the same may be exercised by Source. If Source exercises the
          Liquidation Call
 
                                        8
<PAGE>   9
 
          Right, then on the Liquidation Date, Source will purchase and the
          holders will sell all of the Exchangeable Shares then outstanding for
          a price per share equal to the Liquidation Call Purchase Price.
 
      (c) For the purposes of completing the purchase of the Exchangeable
          Shares pursuant to the Liquidation Call Right, Source shall deposit
          with the Transfer Agent, on or before the Liquidation Date,
          certificates representing the aggregate number of Source Common Shares
          deliverable by Source in payment of the total Liquidation Call
          Purchase Price and a cheque or cheques in the amount of the remaining
          portion, if any, of the total Liquidation Call Purchase Price less any
          amounts withheld pursuant to section 4.7 hereof. Provided that the
          total Liquidation Call Purchase Price has been so deposited with the
          Transfer Agent, on and after the Liquidation Date the rights of each
          holder of Exchangeable Shares will be limited to receiving such
          holder's proportionate part of the total Liquidation Call Purchase
          Price payable by Source upon presentation and surrender by the holder
          of certificates representing the Exchangeable Shares held by such
          holder and the holder shall on and after the Liquidation Date be
          considered and deemed for all purposes to be the holder of the Source
          Common Shares delivered to it. Upon surrender to the Transfer Agent of
          a certificate or certificates representing Exchangeable Shares,
          together with such other documents and instruments as may be required
          to effect a transfer of Exchangeable Shares under the Act and the
          by-laws of Cableshare and such additional documents and instruments as
          the Transfer Agent may reasonably require, the holder of such
          surrendered certificate or certificates shall be entitled to receive
          in exchange therefor, and the Transfer Agent on behalf of Source shall
          deliver to such holder, certificates representing the Source Common
          Shares to which the holder is entitled and a cheque or cheques of
          Source payable at par and in Canadian dollars at any branch of the
          bankers of Source or of Cableshare in Canada in payment of the
          remaining portion, if any, of the total Liquidation Call Purchase
          Price less any amounts withheld pursuant to section 4.7 hereof. If
          Source does not exercise the Liquidation Call Right in the manner
          described above, on the Liquidation Date the holders of the
          Exchangeable Shares will be entitled to receive in exchange therefor
          the liquidation price otherwise payable by Cableshare in connection
          with the liquidation, dissolution or winding-up of Cableshare pursuant
          to Article 5 of the Exchangeable Share Provisions.
 
5.2   SOURCE REDEMPTION CALL RIGHT
 
      (a) Source shall have the overriding right (the "Redemption Call Right"),
          notwithstanding the proposed redemption of the Exchangeable Shares by
          Cableshare pursuant to Article 7 of the Exchangeable Share Provisions,
          to purchase from all but not less than all of the holders of
          Exchangeable Shares on the Automatic Redemption Date all but not less
          than all of the Exchangeable Shares held by each such holder on
          payment by Source to the holder of an amount per share equal to (a)
          the Current Market Price (as defined in the Exchangeable Share
          Provisions) of a Source Common Share on the last Business Day prior to
          the Automatic Redemption Date which shall be satisfied in full by
          causing to be delivered to such holder one Source Common Share plus
          (b) an additional amount equivalent to the full amount of all
          dividends then declared and unpaid on such Exchangeable Share
          (collectively the "Redemption Call Purchase Price"). In the event of
          the exercise of the Redemption Call Right by Source, each holder shall
          be obligated to sell all the Exchangeable Shares held by the holder to
          Source on the Automatic Redemption Date on payment by Source to the
          holder of the Redemption Call Purchase Price for each such share.
 
      (b) To exercise the Redemption Call Right, Source must notify the
          Transfer Agent, as agent for the holders of Exchangeable Shares, and
          Cableshare of Source's intention to exercise such right at least 125
          days before the Automatic Redemption Date. The Transfer Agent will
          notify the holders of the Exchangeable Shares as to whether or not
          Source has exercised the Redemption Call Right forthwith after the
          expiry of the period during which the same may be exercised by Source.
          If Source exercises the Redemption Call Right, on the Automatic
          Redemption Date,
 
                                        9
<PAGE>   10
 
          Source will purchase and the holders will sell all of the Exchangeable
          Shares then outstanding for a price per share equal to the Redemption
          Call Purchase Price.
 
      (c) For the purposes of completing the purchase of the Exchangeable
          Shares pursuant to the Redemption Call Right, Source shall deposit
          with the Transfer Agent, on or before the Automatic Redemption Date,
          certificates representing the aggregate number of Source Common Shares
          deliverable by Source in payment of the total Redemption Call Purchase
          Price and a cheque or cheques in the amount of the remaining portion,
          if any, of the total Redemption Call Purchase Price less any amounts
          withheld pursuant to section 4.7 hereof. Provided that the total
          Redemption Call Purchase Price has been so deposited with the Transfer
          Agent, on and after the Automatic Redemption Date the rights of each
          holder of Exchangeable Shares will be limited to receiving such
          holder's proportionate part of the total Redemption Call Purchase
          Price payable by Source upon presentation and surrender by the holder
          of certificates representing the Exchangeable Shares held by such
          holder and the holder shall on and after the Automatic Redemption Date
          be considered and deemed for all purposes to be the holder of the
          Source Common Shares delivered to such holder. Upon surrender to the
          Transfer Agent of a certificate or certificates representing
          Exchangeable Shares, together with such other document and instruments
          as may be required to effect a transfer of Exchangeable Shares under
          the Act and the by-laws of Cableshare and such additional documents
          and instruments as the Transfer Agent may reasonably require, the
          holder of such surrendered certificate or certificates shall be
          entitled to receive in exchange therefor, and the Transfer Agent on
          behalf of Source shall deliver to such holder, certificates
          representing the Source Common Shares to which the holder is entitled
          and a cheque or cheques of Source payable at par and in Canadian
          dollars at any branch of the bankers of Source or of Cableshare in
          Canada in payment of the remaining portion, if any, of the total
          Redemption Call Purchase Price less any amounts withheld pursuant to
          section 4.7 hereof. If Source does not exercise the Redemption Call
          Right in the manner described above, on the Automatic Redemption Date
          the holders of the Exchangeable Shares will be entitled to receive in
          exchange therefor the redemption price otherwise payable by Cableshare
          in connection with the redemption of the Exchangeable Shares pursuant
          to Article 7 of the Exchangeable Share Provisions.
 
                                   ARTICLE 6
 
                                   AMENDMENTS
 
6.1   AMENDMENTS TO PLAN OF ARRANGEMENT
 
      Cableshare reserves the right to amend, modify and/or supplement this Plan
of Arrangement at any time and from time to time, provided that each such
amendment, modification and/or supplement must be (i) set out in writing, (ii)
approved by Source, (iii) filed with the Court and, if made following the
Cableshare Shareholders' Meeting, be approved by the Court, and (iv)
communicated to holders of Class A Shares and Class B Shares if and as required
by the Court.
 
      Any amendment, modification or supplement to this Plan of Arrangement may
be proposed by Cableshare at any time prior to the Cableshare Shareholders'
Meeting (provided that Source shall have consented thereto) with or without any
other prior notice or communication, and if so proposed and accepted by the
Persons voting at the Cableshare Shareholders' Meeting (other than as may be
required under the Interim Order), shall become part of this Plan of Arrangement
for all purposes.
 
      Any amendment, modification or supplement to this Plan of Arrangement that
is approved by the Court following the Cableshare Shareholders' Meeting shall be
effective only if (i) it is consented to by each of Cableshare and Source, and
(ii) if required by the Court, it is consented to by holders of the Class A
Shares and Class B Shares voting in the manner directed by the Court.
 
                                       10
<PAGE>   11
 
                       APPENDIX A TO PLAN OF ARRANGEMENT
                               OF CABLESHARE INC.
 
                     PROVISIONS ATTACHING TO COMMON SHARES
 
      The common shares in the capital of Cableshare shall have attached thereto
the following rights, privileges, restrictions and conditions:
 
DIVIDENDS
 
      Subject to the prior rights of the holders of any shares ranking senior to
the common shares with respect to priority in the payment of dividends, the
holders of common shares shall be entitled to receive dividends and Cableshare
shall pay dividends thereon, as and when declared by the board of directors of
Cableshare out of moneys properly applicable to the payment of dividends, in
such amount and in such form as the board of directors may from time to time
determine and all dividends which the directors may declare on the common shares
shall be declared and paid in equal amounts per share on all common shares at
the time outstanding.
 
DISSOLUTION
 
      In the event of the dissolution, liquidation or winding-up of Cableshare,
whether voluntary or involuntary, or any other distribution of assets of
Cableshare among its shareholders for the purpose of winding up its affairs,
subject to the prior rights of the holders of the Exchangeable Non-Voting Shares
and to any other shares ranking senior to the common shares with respect to
priority in the distribution of assets upon dissolution, liquidation or
winding-up, holders of common shares shall be entitled to receive the remaining
property and assets of Cableshare rateably in accordance with the number of
common shares held.
 
VOTING RIGHTS
 
      The holders of common shares shall be entitled to receive notice of and to
attend all meetings of the shareholders of Cableshare and shall have one vote
for each common share held at all meetings of the shareholders of Cableshare,
except for meetings at which only holders of another specified class or series
of shares of Cableshare are entitled to vote separately as a class or series.
 
                                       11
<PAGE>   12
 
                  PROVISIONS ATTACHING TO EXCHANGEABLE SHARES
 
      The Exchangeable Non-Voting Shares in the capital of Cableshare shall have
the following rights, privileges, restrictions and conditions:
 
                                   ARTICLE 1
 
                                 INTERPRETATION
 
      For the purposes of these share provisions:
 
      "AFFILIATE" of any person means any other person directly or indirectly
      controlled by, or under common control with, that person. For the purposes
      of this definition, "control" (including, with correlative meanings, the
      terms "controlled by" and "under common control of"), as applied to any
      person, means the possession by another person, directly or indirectly, of
      the power to direct or cause the direction of the management and policies
      of that first mentioned person, whether through the ownership of voting
      securities, by contract or otherwise.
 
      "AUTOMATIC REDEMPTION DATE" means the date for the automatic redemption by
      Cableshare of Exchangeable Shares pursuant to Article 7 of these share
      provisions, which date shall be December --, 2001, unless
 
      (a) such date shall be extended at any time or from time to time to a
          specified later date by the Board of Directors, or
 
      (b) such date shall be accelerated at any time to a specified earlier
          date by the Board of Directors if at such time there are fewer than
          500,000 Exchangeable Shares outstanding (other than Exchangeable
          Shares held by Source and its Affiliates) and as such number of shares
          may be adjusted as deemed appropriate by the Board of Directors to
          give effect to any subdivision or consolidation of or stock dividend
          on the Exchangeable Shares, any issue or distribution of rights to
          acquire Exchangeable Shares or securities exchangeable for or
          convertible into Exchangeable Shares, any issue or distribution of
          other securities or rights or evidences of indebtedness or assets, or
          any other capital reorganization or other transaction affecting the
          Exchangeable Shares, in each case upon at least 60 days' prior written
          notice of any such extension or acceleration, as the case may be, to
          the registered holders of the Exchangeable Shares, in which case the
          Automatic Redemption Date shall be such later or earlier date;
          provided, however, that the accidental failure or omission to give any
          such notice of extension or acceleration, as the case may be, to less
          than 10% of such holders of Exchangeable Shares shall not affect the
          validity of such extension or acceleration.
 
      "BOARD OF DIRECTORS" means the board of directors of Cableshare.
 
      "BUSINESS DAY" means a day which is not a Saturday, Sunday, a statutory
      holiday within the meaning of the Interpretation Act (Canada) or a day on
      which banks are required or permitted by law to be closed for business in
      Toronto, Ontario.
 
      "CABLESHARE" means Cableshare Inc., a corporation subsisting under the
      laws of the Province of Ontario.
 
      "CANADIAN DOLLAR EQUIVALENT" means in respect of an amount expressed in a
      foreign currency (the "Foreign Currency Amount") at any date the product
      obtained by multiplying
 
      (a) the Foreign Currency Amount by
 
      (b) the noon spot exchange rate on such date for such foreign currency
          expressed in Canadian dollars as reported by the Bank of Canada or, in
          the event such spot exchange rate is not available, such exchange rate
          on such date for such foreign currency expressed in Canadian dollars
          as may be deemed by the Board of Directors to be appropriate for such
          purpose.
 
      "CLASS A PREFERENCE SHARES" means the Class A Preference Shares of
      Cableshare.
 
      "COMMON SHARES" means the common shares of Cableshare.
 
                                       12
<PAGE>   13
 
      "CURRENT MARKET PRICE" means, in respect of a Source Common Share on any
      date, the Canadian Dollar Equivalent of the average of the closing bid and
      asked prices of Source Common Shares during a period of 20 consecutive
      trading days ending not more than five trading days before such date on
      the National Market System of the National Association of Securities
      Dealers Automated Quotation System, or, if the Source Common Shares are
      not then quoted on the National Market System of the National Association
      of Securities Dealers Automated Quotation System, on such other stock
      exchange or automated quotation system on which the Source Common Shares
      are listed or quoted, as the case may be, as may be selected by the Board
      of Directors for such purpose; provided, however, that if in the opinion
      of the Board of Directors the public distribution or trading activity of
      Source Common Shares during such period does not create a market which
      reflects the fair market value of a Source Common Share, then the Current
      Market Price of a Source Common Share shall be determined by the Board of
      Directors based upon the advice of such qualified independent financial
      advisors as the Board of Directors may deem to be appropriate, and
      provided further that any such selection, opinion or determination by the
      Board of Directors shall be conclusive and binding.
 
      "EXCHANGEABLE SHARES" mean the Exchangeable Non-Voting Shares of
      Cableshare having the rights, privileges, restrictions and conditions set
      forth herein.
 
      "LIQUIDATION AMOUNT" has the meaning ascribed thereto in Section 5.1 of
      these share provisions.
 
      "LIQUIDATION CALL RIGHT" has the meaning ascribed thereto in the Plan of
      Arrangement.
 
      "LIQUIDATION DATE" has the meaning ascribed thereto in Section 5.1 of
      these share provisions.
 
      "PLAN OF ARRANGEMENT" means the plan of arrangement relating to the
      arrangement of Cableshare under section 182 of the Business Corporations
      Act (Ontario), to which plan these share provisions are attached.
 
      "PURCHASE PRICE" has the meaning ascribed thereto in Section 6.3 of these
      share provisions.
 
      "REDEMPTION CALL RIGHT" has the meaning ascribed thereto in the Plan of
      Arrangement.
 
      "REDEMPTION PRICE" has the meaning ascribed thereto in Section 7.1 of
      these share provisions.
 
      "RETRACTED SHARES" has the meaning ascribed thereto in Section 6.1(a) of
      these share provisions.
 
      "RETRACTION CALL RIGHT" has the meaning ascribed thereto in Section 6.1(c)
      of these share provisions.
 
      "RETRACTION DATE" has the meaning ascribed thereto in Section 6.1(b) of
      these share provisions.
 
      "RETRACTION PRICE" has the meaning ascribed thereto in Section 6.1 of
      these share provisions.
 
      "RETRACTION REQUEST" has the meaning ascribed thereto in Section 6.1 of
      these share provisions.
 
      "SOURCE" means Source Media, Inc., a corporation subsisting under the laws
      of the State of Delaware, and any successor corporation thereto.
 
      "SOURCE CALL NOTICE" has the meaning ascribed thereto in Section 6.3 of
      these share provisions.
 
      "SOURCE COMMON SHARES" mean the shares of common stock of Source, par
      value of US $0.001 per share, and any other securities into which such
      shares may be changed.
 
      "SOURCE DIVIDEND DECLARATION DATE" means the date on which the Board of
      Directors of Source declares any dividend on the Source Common Shares.
 
      "SUPPORT AGREEMENT" means the Support Agreement between Source and
      Cableshare, made as of    --   , 1996.
 
      "TRANSFER AGENT" means the Secretary of Cableshare or such other person as
      may from time to time be appointed by Cableshare as the registrar and
      transfer agent for the Exchangeable Shares.
 
      "TRUSTEE" means    --   , a corporation organized and existing under the
      laws of Canada and any successor trustee appointed under the Voting and
      Exchange Trust Agreement.
 
      "VOTING AND EXCHANGE TRUST AGREEMENT" means the Voting and Exchange Trust
      Agreement between Cableshare, Source and the Trustee, made as of    --   ,
      1996.
 
                                       13
<PAGE>   14
 
                                   ARTICLE 2
 
                         RANKING OF EXCHANGEABLE SHARES
 
2.1    The Exchangeable Shares shall be entitled to a preference over the Common
Shares, the Class A Preference Shares and any other shares ranking junior to the
Exchangeable Shares with respect to the payment of dividends and the
distribution of assets in the event of the liquidation, dissolution or
winding-up of Cableshare, whether voluntary or involuntary, or any other
distribution of the assets of Cableshare among its shareholders for the purpose
of winding up its affairs.
 
                                   ARTICLE 3
 
                                   DIVIDENDS
 
3.1    A holder of an Exchangeable Share shall be entitled to receive and the
Board of Directors shall, subject to applicable law, on each Source Dividend
Declaration Date, declare a dividend on each Exchangeable Share:
 
      (a) in the case of a cash dividend declared on the Source Common Shares,
          in an amount in cash for each Exchangeable Share equal to the Canadian
          Dollar Equivalent on the Source Dividend Declaration Date of the cash
          dividend declared on each Source Common Share;
 
      (b) in the case of a stock dividend declared on the Source Common Shares
          to be paid in Source Common Shares, in such number of Exchangeable
          Shares for each Exchangeable Share as is equal to the number of Source
          Common Shares to be paid on each Source Common Share; or
 
      (c) in the case of a dividend declared on the Source Common Shares in
          property other than cash or Source Common Shares, in such type and
          amount of property for each Exchangeable Share as is the same as or
          economically equivalent to (to be determined by the Board of Directors
          as contemplated by Section 3.5 hereof) the type and amount of property
          declared as a dividend on each Source Common Share.
 
Such dividends shall be paid out of money, assets or property of Cableshare
properly applicable to the payment of dividends, or out of authorized but
unissued shares of Cableshare, as applicable.
 
3.2    Cheques of Cableshare payable at par at any branch of the bankers of
Cableshare shall be issued in respect of any cash dividends contemplated by
Section 3.1(a) hereof and the sending of such a cheque to each holder of an
Exchangeable Share shall satisfy the cash dividend represented thereby unless
the cheque is not paid on presentation. Certificates registered in the name of
the registered holder of Exchangeable Shares shall be issued or transferred in
respect of any stock dividends contemplated by Section 3.1(b) hereof and the
sending of such a certificate to each holder of an Exchangeable Share shall
satisfy the stock dividend represented thereby. Such other type and amount of
property in respect of any dividends contemplated by Section 3.1(c) hereof shall
be issued, distributed or transferred by Cableshare in such manner as it shall
determine and the issuance, distribution or transfer thereof by Cableshare to
each holder of an Exchangeable Share shall satisfy the dividend represented
thereby. No holder of an Exchangeable Share shall be entitled to recover by
action or other legal process against Cableshare any dividend that is
represented by a cheque that has not been duly presented to Cableshare's bankers
for payment or that otherwise remains unclaimed for a period of six years from
the date on which such dividend was payable.
 
3.3    The record date for the determination of the holders of Exchangeable
Shares entitled to receive payment of, and the payment date for, any dividend
declared on the Exchangeable Shares under Section 3.1 hereof shall be the same
dates as the record date and payment date, respectively, for the corresponding
dividend declared on the Source Common Shares.
 
3.4    If on any payment date for any dividends declared on the Exchangeable
Shares under Section 3.1 hereof the dividends are not paid in full on all of the
Exchangeable Shares then outstanding, any such dividends that remain unpaid
shall be paid on a subsequent date or dates determined by the Board of Directors
on which Cableshare shall have sufficient moneys, assets or property properly
applicable to the payment of such dividends.
 
                                       14
<PAGE>   15
 
3.5    The Board of Directors shall determine, in good faith and in its sole
discretion (with the assistance of such reputable and qualified independent
financial advisors and/or other experts as the Board of Directors may require),
economic equivalence for the purposes of Section 3.1(c) hereof, and each such
determination shall be conclusive and binding on Cableshare and its
shareholders. In making each such determination, the following factors shall,
without excluding other factors determined by the Board of Directors to be
relevant, be considered by the Board of Directors:
 
      (a) in the case of any stock dividend or other distribution payable in
          Source Common Shares, the number of such shares issued in proportion
          to the number of Source Common Shares previously outstanding;
 
      (b) in the case of the issuance or distribution of any rights, options or
          warrants to subscribe for or purchase Source Common Shares (or
          securities exchangeable for or convertible into or carrying rights to
          acquire Source Common Shares), the relationship between the exercise
          price of each such right, option or warrant and the current market
          value (as determined by the Board of Directors in the manner above
          contemplated) of a Source Common Share;
 
      (c) in the case of the issuance or distribution of any other form of
          property (including, without limitation, any shares or securities of
          Source of any class other than Source Common Shares, any rights,
          options or warrants other than those referred to in Section 3.5(b)
          above, any evidences of indebtedness of Source or any assets of
          Source), the relationship between the fair market value (as determined
          by the Board of Directors in the manner above contemplated) of such
          property to be issued or distributed with respect to each outstanding
          Source Common Share and the current market value (as determined by the
          Board of Directors in the manner above contemplated) of a Source
          Common Share; and
 
      (d) in all such cases, the general taxation consequences of the relevant
          event to holders of Exchangeable Shares to the extent that such
          consequences may differ from the taxation consequences to holders of
          Source Common Shares as a result of differences between taxation laws
          of Canada and the United States (except for any differing consequences
          arising as a result of differing marginal taxation rates and without
          regard to the individual circumstances of holders of Exchangeable
          Shares).
 
For purposes of the foregoing determinations, the current market value of any
security listed and traded or quoted on a securities exchange shall be the
weighted average of the daily trading prices of such security during a period of
not less than 20 consecutive trading days ending not more than five trading days
before the date of determination on the principal securities exchange on which
such securities are listed and traded or quoted; provided, however, that if in
the opinion of the Board of Directors the public distribution or trading
activity of such securities during such period does not create a market which
reflects the fair market value of such securities, then the current market value
thereof shall be determined by the Board of Directors, in good faith and in its
sole discretion (with the assistance of such reputable and qualified independent
financial advisors and/or other experts as the board may require), and provided
further that any such determination by the Board of Directors shall be
conclusive and binding on Cableshare and its shareholders.
 
                                   ARTICLE 4
 
                              CERTAIN RESTRICTIONS
 
4.1    So long as any of the Exchangeable Shares are outstanding, Cableshare
shall not at any time without, but may at any time with, the approval of the
holders of the Exchangeable Shares given as specified in Section 10.2 of these
share provisions:
 
      (a) pay any dividends on the Common Shares, the Class A Preference Shares
          or any other shares ranking junior to the Exchangeable Shares, other
          than stock dividends payable in Common Shares, Class A Preference
          Shares or any such other shares ranking junior to the Exchangeable
          Shares, as the case may be;
 
      (b) redeem or purchase or make any capital distribution in respect of
          Common Shares, Class A Preference Shares or any other shares ranking
          junior to the Exchangeable Shares;
 
                                       15
<PAGE>   16
 
      (c) redeem or purchase any other shares of Cableshare ranking equally
          with the Exchangeable Shares with respect to the payment of dividends
          or on any liquidation distribution; or
 
      (d) issue any Exchangeable Shares or any other shares of Cableshare
          ranking equally with, or superior to, the Exchangeable Shares other
          than by way of stock dividends to the holders of such Exchangeable
          Shares.
 
The restrictions in Sections 4.1(a), 4.1(b) and 4.1(c) above shall not apply if
all dividends on the outstanding Exchangeable Shares corresponding to dividends
declared to date on the Source Common Shares shall have been declared on the
Exchangeable Shares and paid in full.
 
                                   ARTICLE 5
 
                          DISTRIBUTION ON LIQUIDATION
 
5.1    In the event of the liquidation, dissolution or winding-up of Cableshare
or any other distribution of the assets of Cableshare among its shareholders for
the purpose of winding up its affairs, a holder of Exchangeable Shares shall be
entitled, subject to applicable law, to receive from the assets of Cableshare in
respect of each Exchangeable Share held by such holder on the effective date
(the "Liquidation Date") of such liquidation, dissolution or winding-up, before
any distribution of any part of the assets of Cableshare among the holders of
the Common Shares, Class A Preference Shares or any other shares ranking junior
to the Exchangeable Shares, an amount per share equal to:
 
      (a) the Current Market Price of a Source Common Share on the last
          Business Day prior to the Liquidation Date, which shall be satisfied
          in full by Cableshare causing to be delivered to such holder one
          Source Common Share; plus
 
      (b) an additional amount equivalent to the full amount of all then
          declared and unpaid dividends on each such Exchangeable Share
          (collectively the "Liquidation Amount").
 
5.2    On or promptly after the Liquidation Date, and subject to the exercise by
Source of the Liquidation Call Right, Cableshare shall cause to be delivered to
the holders of the Exchangeable Shares the Liquidation Amount for each such
Exchangeable Share upon presentation and surrender of the certificates
representing such Exchangeable Shares, together with such other documents and
instruments as may be required to effect a transfer of Exchangeable Shares under
the Business Corporations Act (Ontario) and the by-laws of Cableshare and such
additional documents and instruments as the Transfer Agent may reasonably
require, at the registered office of Cableshare or at any office of the Transfer
Agent as may be specified by Cableshare by notice to the holders of the
Exchangeable Shares. Payment of the total Liquidation Amount for such
Exchangeable Shares shall be made by delivery to each holder, at the address of
the holder recorded in the securities register of Cableshare for the
Exchangeable Shares or by holding for pick-up by the holder at the registered
office of Cableshare or at any office of the Transfer Agent as may be specified
by Cableshare by notice to the holders of Exchangeable Shares, on behalf of
Cableshare of certificates representing Source Common Shares (which shares shall
be duly issued as fully paid and non-assessable and shall be free and clear of
any lien, claim or encumbrance) and a cheque of Cableshare payable at par at any
branch of the bankers of Cableshare in respect of the amount equivalent to the
full amount of all declared and unpaid dividends comprising part of the total
Liquidation Amount (in each case less any amounts withheld on account of tax
required to be deducted and withheld therefrom by Cableshare). On and after the
Liquidation Date, the holders of the Exchangeable Shares shall cease to be
holders of such Exchangeable Shares and shall not be entitled to exercise any of
the rights of holders in respect thereof, other than the right to receive their
proportionate part of the total Liquidation Amount, unless payment of the total
Liquidation Amount for such Exchangeable Shares shall not be made upon
presentation and surrender of share certificates in accordance with the
foregoing provisions, in which case the rights of the holders shall remain
unaffected until the total Liquidation Amount has been paid in the manner
hereinbefore provided. Cableshare shall have the right at any time after the
Liquidation Date to deposit or cause to be deposited the total Liquidation
Amount in respect of the Exchangeable Shares represented by certificates that
have not at the Liquidation Date been surrendered by the holders thereof in a
custodial account with any chartered bank or trust company in Canada. Upon such
deposit being made, the rights of the holders of Exchangeable Shares after such
deposit shall be
 
                                       16
<PAGE>   17
 
limited to receiving their proportionate part of the total Liquidation Amount
(in each case less any amounts withheld on account of tax required to be
deducted and withheld therefrom) for such Exchangeable Shares so deposited,
against presentation and surrender of the said certificates held by them,
respectively, in accordance with the foregoing provisions. Upon such payment or
deposit of the total Liquidation Amount, the holders of the Exchangeable Shares
shall thereafter be considered and deemed for all purposes to be holders of the
Source Common Shares delivered to them.
 
5.3    After Cableshare has satisfied its obligations to pay the holders of the
Exchangeable Shares the Liquidation Amount per Exchangeable Share pursuant to
Section 5.1 of these share provisions, such holders shall not be entitled to
share in any further distribution of the assets of Cableshare.
 
                                   ARTICLE 6
 
                  RETRACTION OF EXCHANGEABLE SHARES BY HOLDER
 
6.1    A holder of Exchangeable Shares shall be entitled at any time, subject to
the exercise by Source of the Retraction Call Right and otherwise upon
compliance with the provisions of this Article 6, to require Cableshare to
redeem any or all of the Exchangeable Shares registered in the name of such
holder for an amount per share equal to (a) the Current Market Price of a Source
Common Share on the last Business Day prior to the Retraction Date, which shall
be satisfied in full by Cableshare causing to be delivered to such holder one
Source Common Share for each Exchangeable Share presented and surrendered by the
holder, plus (b) an additional amount equivalent to the full amount of all
dividends declared and unpaid thereon (collectively the "Retraction Price",
provided that if the record date for any such declared and unpaid dividends
occurs on or after the Retraction Date, the Retraction Price shall not include
such additional amount equivalent to the declared and unpaid dividends). To
effect such redemption, the holder shall present and surrender at the registered
office of Cableshare or at any office of the Transfer Agent as may be specified
by Cableshare by notice to the holders of Exchangeable Shares the certificate or
certificates representing the Exchangeable Shares which the holder desires to
have Cableshare redeem, together with such other documents and instruments as
may be required to effect a transfer of Exchangeable Shares under the Business
Corporations Act (Ontario) and the by-laws of Cableshare and such additional
documents and instruments as the Transfer Agent may reasonably require, and
together with a duly executed statement (the "Retraction Request") in the form
of Schedule A hereto or in such other form as may be acceptable to Cableshare:
 
      (a) specifying that the holder desires to have all or any number
          specified therein of the Exchangeable Shares represented by such
          certificate or certificates (the "Retracted Shares") redeemed by
          Cableshare;
 
      (b) stating the Business Day on which the holder desires to have
          Cableshare redeem the Retracted Shares (the "Retraction Date"),
          provided that the Retraction Date shall be not less than 10 Business
          Days nor more than 15 Business Days after the date on which the
          Retraction Request is received by Cableshare and further provided
          that, in the event that no such Business Day is specified by the
          holder in the Retraction Request, the Retraction Date shall be deemed
          to be the fifteenth Business Day after the date on which the
          Retraction Request is received by Cableshare; and
 
      (c) acknowledging the overriding right (the "Retraction Call Right") of
          Source to purchase all but not less than all the Retracted Shares
          directly from the holder and that the Retraction Request shall be
          deemed to be a revocable offer by the holder to sell the Retracted
          Shares to Source in accordance with the Retraction Call Right on the
          terms and conditions set out in Section 6.3 below.
 
6.2    Subject to the exercise by Source of the Retraction Call Right, upon
receipt by Cableshare or the Transfer Agent in the manner specified in Section
6.1 hereof of a certificate or certificates representing the number of
Exchangeable Shares which the holder desires to have Cableshare redeem, together
with a Retraction Request, and provided that the Retraction Request is not
revoked by the holder in the manner specified in Section 6.7, Cableshare shall
redeem the Retracted Shares effective at the close of business on the Retraction
Date and shall cause to be delivered to such holder the total Retraction Price
with respect to such
 
                                       17
<PAGE>   18
 
shares. If only a part of the Exchangeable Shares represented by any certificate
is redeemed (or purchased by Source pursuant to the Retraction Call Right), a
new certificate for the balance of such Exchangeable Shares shall be issued to
the holder at the expense of Cableshare.
 
6.3    Upon receipt by Cableshare of a Retraction Request, Cableshare shall
immediately notify Source thereof. In order to exercise the Retraction Call
Right, Source must notify Cableshare in writing of its determination to do so
(the "Source Call Notice") within five Business Days of notification to Source
by Cableshare of the receipt by Cableshare of the Retraction Request. If Source
does not so notify Cableshare within such five Business Day period, Cableshare
will notify the holder as soon as possible thereafter that Source will not
exercise the Retraction Call Right. If Source delivers the Source Call Notice
within such five Business Day period, and provided that the Retraction Request
is not revoked by the holder in the manner specified in Section 6.7, the
Retraction Request shall thereupon be considered only to be an offer by the
holder to sell the Retracted Shares to Source in accordance with the Retraction
Call Right. In such event, Cableshare shall not redeem the Retracted Shares and
Source shall purchase from such holder and such holder shall sell to Source on
the Retraction Date the Retracted Shares for a purchase price (the "Purchase
Price") per share equal to the Retraction Price per share. For the purposes of
completing a purchase pursuant to the Retraction Call Right, Source shall
deposit with the Transfer Agent, on or before the Retraction Date, certificates
representing Source Common Shares and a cheque in the amount of the remaining
portion, if any, of the total Purchase Price (in each case less any amounts
withheld on account of tax required to be deducted and withheld therefrom by
Source). Provided that the total Purchase Price has been so deposited with the
Transfer Agent, the closing of the purchase and sale of the Retracted Shares
pursuant to the Retraction Call Right shall be deemed to have occurred as at the
close of business on the Retraction Date and, for greater certainty, no
redemption by Cableshare of such Retracted Shares shall take place on the
Retraction Date. In the event that Source does not deliver a Source Call Notice
within such five Business Day period, and provided that the Retraction Request
is not revoked by the holder in the manner specified in Section 6.7, Cableshare
shall redeem the Retracted Shares on the Retraction Date and in the manner
otherwise contemplated in this Article 6.
 
6.4    Cableshare or Source, as the case may be, shall deliver or cause the
Transfer Agent to deliver to the relevant holder, at the address of the holder
recorded in the securities register of Cableshare for the Exchangeable Shares or
at the address specified in the holder's Retraction Request or by holding for
pick-up by the holder at the registered office of Cableshare or at any office of
the Transfer Agent as may be specified by Cableshare by notice to the holders of
Exchangeable Shares, certificates representing the Source Common Shares (which
shares shall be duly issued as fully paid and non-assessable and shall be free
and clear of any lien, claim or encumbrance) registered in the name of the
holder or in such other name as the holder may request in payment of the total
Retraction Price or the total Purchase Price, as the case may be, and a cheque
of Cableshare payable at par at any branch of the bankers of Cableshare in
payment of the remaining portion, if any, of the total Retraction Price (in each
case less any amounts withheld on account of tax required to be deducted and
withheld therefrom by Cableshare) or a cheque of Source payable at par and in
Canadian dollars at any branch of the bankers of Source or of Cableshare in
Canada in payment of the remaining portion, if any, of the total Purchase Price,
as the case may be, and such delivery of such certificates and cheque on behalf
of Cableshare or by Source, as the case may be, or by the Transfer Agent shall
be deemed to be payment of and shall satisfy and discharge all liability for the
total Retraction Price or total Purchase Price, as the case may be, to the
extent that the same is represented by such share certificates and cheque (plus
any tax deducted and withheld therefrom and remitted to the proper tax
authority), unless such cheque is not paid on due presentation.
 
6.5    On and after the close of business on the Retraction Date, the holder of
the Retracted Shares shall cease to be a holder of such Retracted Shares and
shall not be entitled to exercise any of the rights of a holder in respect
thereof, other than the right to receive his proportionate part of the total
Retraction Price or total Purchase Price, as the case may be, unless upon
presentation and surrender of certificates in accordance with the foregoing
provisions, payment of the total Retraction Price or the total Purchase Price,
as the case may be, shall not be made, in which case the rights of such holder
shall remain unaffected until the total Retraction Price or the total Purchase
Price, as the case may be, has been paid in the manner hereinbefore provided. On
and after the close of business on the Retraction Date, provided that
presentation and surrender of certificates
 
                                       18
<PAGE>   19
 
and payment of the total Retraction Price or the total Purchase Price, as the
case may be, has been made in accordance with the foregoing provisions, the
holder of the Retracted Shares so redeemed by Cableshare or purchased by Source
shall thereafter be considered and deemed for all purposes to be a holder of the
Source Common Shares delivered to it.
 
6.6    Notwithstanding any other provision of this Article 6, Cableshare shall
not be obligated to redeem Retracted Shares specified by a holder in a
Retraction Request to the extent that such redemption of Retracted Shares would
be contrary to solvency requirements or other provisions of applicable law. If
Cableshare believes that on any Retraction Date it would not be permitted by any
of such provisions to redeem the Retracted Shares tendered for redemption on
such date, and provided that Source shall not have exercised the Retraction Call
Right with respect to the Retracted Shares, Cableshare shall only be obligated
to redeem Retracted Shares specified by a holder in a Retraction Request to the
extent of the maximum number that may be so redeemed (rounded down to a whole
number of shares) as would not be contrary to such provisions and shall notify
the holder at least two Business Days prior to the Retraction Date as to the
number of Retracted Shares which will not be redeemed by Cableshare. In any case
in which the redemption by Cableshare of Retracted Shares would be contrary to
solvency requirements or other provisions of applicable law, Cableshare shall
redeem Retracted Shares in accordance with Section 6.2 of these share provisions
on a pro rata basis and shall issue to each holder of Retracted Shares a new
certificate, at the expense of Cableshare, representing the Retracted Shares not
redeemed by Cableshare pursuant to Section 6.2 hereof. Provided that the
Retraction Request is not revoked by the holder in the manner specified in
Section 6.7, the holder of any such Retracted Shares not redeemed by Cableshare
pursuant to Section 6.2 of these share provisions as a result of solvency
requirements of applicable law shall be deemed by giving the Retraction Request
to require Source to purchase such Retracted Shares from such holder on the
Retraction Date or as soon as practicable thereafter on payment by Source to
such holder of the Purchase Price for each such Retracted Share, all as more
specifically provided in the Voting and Exchange Trust Agreement.
 
6.7    A holder of Retracted Shares may, by notice in writing given by the
holder to Cableshare before the close of business on the Business Day
immediately preceding the Retraction Date, withdraw its Retraction Request, in
which event such Retraction Request shall be null and void and, for greater
certainty, the revocable offer constituted by the Retraction Request to sell the
Retracted Shares to Source shall be deemed to have been revoked.
 
                                   ARTICLE 7
 
                REDEMPTION OF EXCHANGEABLE SHARES BY CABLESHARE
 
7.1    Subject to applicable law, and subject to the exercise by Source of the
Redemption Call Right, Cableshare shall on the Automatic Redemption Date redeem
the whole of the then outstanding Exchangeable Shares for an amount per share
equal to (a) the Current Market Price of a Source Common Share on the last
Business Day prior to the Automatic Redemption Date, which shall be satisfied in
full by Cableshare causing to be delivered to each holder of Exchangeable Shares
one Source Common Share for each Exchangeable Share held by such holder, plus
(b) an additional amount equivalent to the full amount of all declared and
unpaid dividends thereon (collectively, the "Redemption Price").
 
7.2    In any case of a redemption of Exchangeable Shares under this Article 7,
Cableshare shall, at least 120 days before the Automatic Redemption Date, send
or cause to be sent to each holder of Exchangeable Shares a notice in writing of
the redemption by Cableshare or the purchase by Source under the Redemption Call
Right, as the case may be, of the Exchangeable Shares held by such holder. Such
notice shall set out the formula for determining the Redemption Price or the
Redemption Call Purchase Price, as the case may be, the Automatic Redemption
Date and, if applicable, particulars of the Redemption Call Right.
 
7.3    On or after the Automatic Redemption Date and subject to the exercise by
Source of the Redemption Call Right, Cableshare shall cause to be delivered to
the holders of the Exchangeable Shares to be redeemed the Redemption Price for
each such Exchangeable Share upon presentation and surrender at the registered
office of Cableshare or at any office of the Transfer Agent as may be specified
by Cableshare in such notice of the certificates representing such Exchangeable
Shares, together with such other documents and instruments as may be required to
effect a transfer of Exchangeable Shares under the Business Corporations Act
(Ontario)
 
                                       19
<PAGE>   20
 
and the by-laws of Cableshare and such additional documents and instruments as
the Transfer Agent may reasonably require. Payment of the total Redemption Price
for such Exchangeable Shares shall be made by delivery to each holder, at the
address of the holder recorded in the securities register of Cableshare or by
holding for pick-up by the holder at the registered office of Cableshare or at
any office of the Transfer Agent as may be specified by Cableshare in such
notice, on behalf of Cableshare of certificates representing Source Common
Shares (which shares shall be duly issued as fully paid and non-assessable and
shall be free and clear of any lien, claim or encumbrance) and a cheque of
Cableshare payable at par at any branch of the bankers of Cableshare in respect
of the additional amount equivalent to the full amount of all declared and
unpaid dividends comprising part of the total Redemption Price (in each case
less any amounts withheld on account of tax required to be withheld and remitted
therefrom by Cableshare). On and after the Automatic Redemption Date, the
holders of the Exchangeable Shares called for redemption shall cease to be
holders of such Exchangeable Shares and shall not be entitled to exercise any of
the rights of holders in respect thereof, other than the right to receive their
proportionate part of the total Redemption Price, unless payment of the total
Redemption Price for such Exchangeable Shares shall not be made upon
presentation and surrender of certificates in accordance with the foregoing
provisions, in which case the rights of the holders shall remain unaffected
until the total Redemption Price has been paid in the manner hereinbefore
provided. Cableshare shall have the right at any time after the sending of
notice of its intention to redeem the Exchangeable Shares as aforesaid to
deposit or cause to be deposited the total Redemption Price of the Exchangeable
Shares so called for redemption, or of such of the said Exchangeable Shares
represented by certificates that have not at the date of such deposit been
surrendered by the holders thereof in connection with such redemption, in a
custodial account with any chartered bank or trust company in Canada named in
such notice (less any amounts withheld on account of tax required to be withheld
and remitted therefrom by Cableshare). Upon the later of such deposit being made
and the Automatic Redemption Date, the Exchangeable Shares in respect whereof
such deposit shall have been made shall be redeemed and the rights of the
holders thereof after such deposit or Automatic Redemption Date, as the case may
be, shall be limited to receiving their proportionate part of the total
Redemption Price for such Exchangeable Shares so deposited, against presentation
and surrender of the said certificates held by them, respectively, in accordance
with the foregoing provisions. Upon such payment or deposit of the total
Redemption Price, the holders of the Exchangeable Shares shall thereafter be
considered and deemed for all purposes to be holders of the Source Common Shares
delivered to them.
 
                                   ARTICLE 8
 
                           PURCHASE FOR CANCELLATION
 
8.1    Subject to applicable law and the articles of Cableshare, Cableshare may
at any time and from time to time purchase for cancellation all or any part of
the outstanding Exchangeable Shares at any price by tender to all the holders of
record of Exchangeable Shares then outstanding or through the facilities of any
stock exchange on which the Exchangeable Shares are listed or quoted at any
price per share together with an amount equal to all declared and unpaid
dividends thereon. If in response to an invitation for tenders under the
provisions of this Section 8.1, more Exchangeable Shares are tendered at a price
or prices acceptable to Cableshare than Cableshare is prepared to purchase, the
Exchangeable Shares to be purchased by Cableshare shall be purchased as nearly
as may be pro rata according to the number of shares tendered by each holder who
submits a tender to Cableshare, provided that when shares are tendered at
different prices, the pro rating shall be effected (disregarding fractions) only
with respect to the shares tendered at the price at which more shares were
tendered than Cableshare is prepared to purchase after Cableshare has purchased
all the shares tendered at lower prices. If part only of the Exchangeable Shares
represented by any certificate shall be purchased, a new certificate for the
balance of such shares shall be issued at the expense of Cableshare.
 
                                       20
<PAGE>   21
 
                                   ARTICLE 9
 
                                 VOTING RIGHTS
 
9.1    Except as required by applicable law, the holders of the Exchangeable
Shares shall not be entitled as such to receive notice of or to attend any
meeting of the shareholders of Cableshare or to vote at any such meeting.
 
                                   ARTICLE 10
 
                             AMENDMENT AND APPROVAL
 
10.1    The rights, privileges, restrictions and conditions attaching to the
Exchangeable Shares may be added to, changed or removed but only with the
approval of the holders of the Exchangeable Shares given as hereinafter
specified.
 
10.2    Any approval given by the holders of the Exchangeable Shares to add to,
change or remove any right, privilege, restriction or condition attaching to the
Exchangeable Shares or any other matter requiring the approval or consent of the
holders of the Exchangeable Shares shall be deemed to have been sufficiently
given if it shall have been given in accordance with applicable law subject to a
minimum requirement that such approval be evidenced by resolution passed by not
less than two-thirds of the votes cast on such resolution at a meeting of
holders of Exchangeable Shares duly called and held at which the holders of at
least 25% of the outstanding Exchangeable Shares at that time are present or
represented by proxy; provided that if at any such meeting the holders of at
least 25% of the outstanding Exchangeable Shares at that time are not present or
represented by proxy within one-half hour after the time appointed for such
meeting then the meeting shall be adjourned to such date not less than five days
thereafter and to such time and place as may be designated by the Chairman of
such meeting. At such adjourned meeting, the holders of Exchangeable Shares
present or represented by proxy thereat may transact the business for which the
meeting was originally called and a resolution passed thereat by the affirmative
vote of not less than two-thirds of the votes cast on such resolution at such
meeting shall constitute the approval or consent of the holders of the
Exchangeable Shares.
 
                                   ARTICLE 11
 
          RECIPROCAL CHANGES, ETC. IN RESPECT OF SOURCE COMMON SHARES
 
11.1   Each holder of an Exchangeable Share acknowledges that the Support
Agreement provides, in part, that Source will not without the prior approval of
Cableshare and the prior approval of the holders of the Exchangeable Shares
given in accordance with Section 10.2 of these share provisions:
 
      (a) issue or distribute Source Common Shares (or securities exchangeable
          for or convertible into or carrying rights to acquire Source Common
          Shares) to the holders of all or substantially all of the then
          outstanding Source Common Shares by way of stock dividend or other
          distribution, other than an issue of Source Common Shares (or
          securities exchangeable for or convertible into or carrying rights to
          acquire Source Common Shares) to holders of Source Common Shares who
          exercise an option to receive dividends in Source Common Shares (or
          securities exchangeable for or convertible into or carrying rights to
          acquire Source Common Shares) in lieu of receiving cash dividends;
 
      (b) issue or distribute rights, options or warrants to the holders of all
          or substantially all of the then outstanding Source Common Shares
          entitling them to subscribe for or to purchase Source Common Shares
          (or securities exchangeable for or convertible into or carrying rights
          to acquire Source Common Shares);
 
      (c) issue or distribute to the holders of all or substantially all of the
          then outstanding Source Common Shares:
 
          (i)  shares or securities of Source of any class other than Source
               Common Shares (other than shares convertible into or exchangeable
               for or carrying rights to acquire Source Common Shares);
 
          (ii) rights, options or warrants other than those referred to in
               Section 11.1(b) above;
 
                                       21
<PAGE>   22
 
          (iii) evidences of indebtedness of Source; or
 
          (iv)  assets of Source;
 
          unless the economic equivalent on a per share basis of such rights,
          options, securities, shares, evidences of indebtedness or other assets
          is issued or distributed simultaneously to holders of the Exchangeable
          Shares; or
 
      (d) each holder of an Exchangeable Share acknowledges that the Support
          Agreement further provides, in part, that Source will not without the
          prior approval of Cableshare and the prior approval of the holders of
          the Exchangeable Shares given in accordance with Section 10.2 of these
          share provisions:
 
          (i)   subdivide, redivide or change the then outstanding Source Common
                Shares into a greater number of Source Common Shares;
 
          (ii)  reduce, combine or consolidate or change the then outstanding
                Source Common Shares into a lesser number of Source Common
                Shares; or
 
          (iii) reclassify or otherwise change the Source Common Shares or
                effect an amalgamation, merger, reorganization or other
                transaction affecting the Source Common Shares;
 
          unless the same or an economically equivalent change shall
          simultaneously be made to, or in, the rights of the holders of, the
          Exchangeable Shares.
 
The Support Agreement further provides, in part, that the aforesaid provisions
of the Support Agreement shall not be changed without the approval of the
holders of the Exchangeable Shares given in accordance with Section 10.2 of
these share provisions.
 
                                   ARTICLE 12
 
                 ACTIONS BY CABLESHARE UNDER SUPPORT AGREEMENT
 
12.1   Cableshare will take all such actions and do all such things as shall be
necessary or advisable to perform and comply with and to ensure performance and
compliance by Source with all provisions of the Support Agreement applicable to
Cableshare and Source, respectively, in accordance with the terms thereof
including, without limitation, taking all such actions and doing all such things
as shall be necessary or advisable to enforce to the fullest extent possible for
the direct benefit of Cableshare all rights and benefits in favour of Cableshare
under or pursuant to such agreement.
 
12.2   Cableshare shall not propose, agree to or otherwise give effect to any
amendment to, or waiver or forgiveness of its rights or obligations under, the
Support Agreement without the approval of the holders of the Exchangeable Shares
given in accordance with Section 10.2 of these share provisions other than such
amendments, waivers and/or forgiveness as may be necessary or advisable for the
purposes of:
 
      (a) adding to the covenants of the other party or parties to such
          agreement for the protection of Cableshare or the holders of the
          Exchangeable Shares thereunder;
 
      (b) making such provisions or modifications not inconsistent with such
          agreement as may be necessary or desirable with respect to matters or
          questions arising thereunder which, in the opinion of the Board of
          Directors, it may be expedient to make, provided that the Board of
          Directors shall be of the opinion, after consultation with counsel,
          that such provisions and modifications will not be prejudicial to the
          interests of the holders of the Exchangeable Shares; or
 
      (c) making such changes in or corrections to such agreement which, on the
          advice of counsel to Cableshare, are required for the purpose of
          curing or correcting any ambiguity or defect or inconsistent provision
          or clerical omission or mistake or manifest error contained therein,
          provided that the Board of Directors shall be of the opinion, after
          consultation with counsel, that such changes or corrections will not
          be prejudicial to the interests of the holders of the Exchangeable
          Shares.
 
                                       22
<PAGE>   23
 
                                   ARTICLE 13
 
                                     LEGEND
 
13.1   The certificates evidencing the Exchangeable Shares shall contain or have
affixed thereto a legend in form and on terms approved by the Board of
Directors, with respect to the Support Agreement, the provisions of the Plan of
Arrangement relating to the Liquidation Call Right and the Redemption Call
Right, and the Voting and Exchange Trust Agreement (including the provisions
with respect to the voting rights, exchange right and automatic exchange
thereunder).
 
                                   ARTICLE 14
 
                                    NOTICES
 
14.1   Any notice, request or other communication to be given to Cableshare by a
holder of Exchangeable Shares shall be in writing and shall be valid and
effective if given by mail (postage prepaid) or by telecopy or by delivery to
the registered office of Cableshare and addressed to the attention of the
President. Any such notice, request or other communication, if given by mail,
telecopy or delivery, shall only be deemed to have been given and received upon
actual receipt thereof by Cableshare.
 
14.2   Any presentation and surrender by a holder of Exchangeable Shares to
Cableshare or the Transfer Agent of certificates representing Exchangeable
Shares in connection with the liquidation, dissolution or winding-up of
Cableshare or the retraction or redemption of Exchangeable Shares shall be made
by registered mail (postage prepaid) or by delivery to the registered office of
Cableshare or to such office of the Transfer Agent as may be specified by
Cableshare, in each case addressed to the attention of the President of
Cableshare. Any such presentation and surrender of certificates shall only be
deemed to have been made and to be effective upon actual receipt thereof by
Cableshare or the Transfer Agent, as the case may be. Any such presentation and
surrender of certificates made by registered mail shall be at the sole risk of
the holder mailing the same.
 
14.3   Any notice, request or other communication to be given to a holder of
Exchangeable Shares by or on behalf of Cableshare shall be in writing and shall
be valid and effective if given by mail (postage prepaid) or by delivery to the
address of the holder recorded in the securities register of Cableshare or, in
the event of the address of any such holder not being so recorded, then at the
last known address of such holder. Any such notice, request or other
communication, if given by mail, shall be deemed to have been given and received
on the third Business Day following the date of mailing and, if given by
delivery, shall be deemed to have been given and received on the date of
delivery. Accidental failure or omission to give any notice, request or other
communication to one or more holders of Exchangeable Shares shall not invalidate
or otherwise alter or affect any action or proceeding to be taken by Cableshare
pursuant thereto.
 
                                       23
<PAGE>   24
 
                                   SCHEDULE A
 
                              NOTICE OF RETRACTION
 
To Cableshare Inc. and Source Media, Inc.
 
       This notice is given pursuant to Article 6 of the provisions (the "Share
Provisions") attaching to the share(s) represented by this certificate and all
capitalized words and expressions used in this notice that are defined in the
Share Provisions have the meanings ascribed to such words and expressions in
such Share Provisions.
 
       The undersigned hereby notifies Cableshare that, subject to the
Retraction Call Right referred to below, the undersigned desires to have
Cableshare redeem in accordance with Article 6 of the Share Provisions:
 
[ ]  all share(s) represented by this certificate; or
 
[ ]  ________________________ share(s) only.
 
       The undersigned hereby notifies Cableshare that the Retraction Date shall
be ________________________ .
 
NOTE: The Retraction Date must be a Business Day and must not be less than 10
       Business Days nor more than 15 Business Days after the date upon which
       this notice is received by Cableshare. In the event that no such Business
       Day is specified above, the Retraction Date shall be deemed to be the
       15th Business Day after the date on which this notice is received by
       Cableshare.
 
      The undersigned acknowledges the Retraction Call Right of Source to
purchase all but not less than all the Retracted Shares from the undersigned and
that this notice shall be deemed to be a revocable offer by the undersigned to
sell the Retractable Shares to Source in accordance with the Retraction Call
Right on the Retraction Date for the Retraction Price and on the other terms and
conditions set out in Section 6.3 of the Share Provisions. If Source determines
not to exercise the Retraction Call Right, Cableshare will notify the
undersigned of such fact as soon as practicable. This notice of retraction, and
the offer to sell the Retracted Shares to Source, may be revoked and withdrawn
by the undersigned only by notice in writing given to Cableshare at any time
before the close of business on the second Business Day immediately preceding
the Retraction Date.
 
       The undersigned acknowledges that if, as a result of solvency provisions
of applicable law, Cableshare is unable to redeem all Retracted Shares, the
undersigned will be deemed to have exercised the Exchange Right (as defined in
the Voting and Exchange Trust Agreement) so as to require Source to purchase the
unredeemed Retracted Shares.
 
       The undersigned hereby represents and warrants to Cableshare and Source
that the undersigned:
 
[ ]  is
 
                  (select one)
 
[ ]  is not
 
a non-resident of Canada for purposes of the Income Tax Act (Canada). THE
UNDERSIGNED ACKNOWLEDGES THAT IN THE ABSENCE OF AN INDICATION THAT THE
UNDERSIGNED IS NOT A NON-RESIDENT OF CANADA, WITHHOLDING ON ACCOUNT OF CANADIAN
TAX WILL BE MADE FROM AMOUNTS PAYABLE TO THE UNDERSIGNED ON THE REDEMPTION OR
PURCHASE OF THE RETRACTED SHARES.
 
       The undersigned hereby represents and warrants to Cableshare and Source
that the undersigned has good title to, and owns, the share(s) represented by
this certificate to be acquired by Cableshare or Source, as the case may be,
free and clear of all liens, claims and encumbrances.
 


- ------------------  ------------------------------  ---------------------------
(Date)                (Signature of Shareholder)      (Guarantee of Signature)
 
                                       24
<PAGE>   25
 
[ ]  Please check box if the securities and any cheque(s) resulting from the
     retraction or purchase of the Retracted Shares are to be held for pick-up
     by the shareholder by the Transfer Agent, failing which the securities and
     any cheque(s) will be mailed to the last address of the shareholder as it
     appears on the register.
 
NOTE:  This panel must be completed and this certificate, together with such
       additional documents as the Transfer Agent may require, must be deposited
       with the Transfer Agent. The securities and any cheque(s) resulting from
       the retraction or purchase of the Retracted Shares will be issued and
       registered in, and made payable to, respectively, the name of the
       shareholder as it appears on the register of Cableshare and the
       securities and any cheque(s) resulting from such retraction or purchase
       will be delivered to such shareholder as indicated above, unless the form
       appearing immediately below is duly completed.


 

- -------------------------------------------    ---------------------------------
Name of Person in Whose Name Securities or     Date  
Cheque(s) Are to be Registered, Issued or
Delivered (please print)


- --------------------------------------------   ---------------------------------
Street Address or P.O. Box                     Signature of Shareholder


- --------------------------------------------   ---------------------------------
City, Province and Postal Code                 Signature Guaranteed by

 
NOTE: If the notice of retraction is for less than all of the shares represented
      by this certificate, a certificate representing the remaining share(s) of
      Cableshare represented by this certificate will be issued and registered
      in the name of the shareholder as it appears on the register of
      Cableshare, unless the Share Transfer Power on the share certificate is
      duly completed in respect of such share(s).
 
                                       25
<PAGE>   26
 
               PROVISIONS ATTACHING TO CLASS A PREFERENCE SHARES
 
      The rights, privileges, restrictions and conditions attaching to the Class
A Preference Shares, as a class, are as follows:
 
                                   ARTICLE 1
 
                DIRECTORS' AUTHORITY TO ISSUE ONE OR MORE SERIES
 
1.1    The board of directors of Cableshare may issue the Class A Preference
Shares at any time and from time to time in one or more series. Before the first
shares of a particular series are issued, the board of directors of Cableshare
shall fix the number of shares in such series and shall determine, subject to
the limitations set out in the articles, the designation, rights, privileges,
restrictions and conditions to attach to the shares of such series including,
without limiting the generality of the foregoing, the rate or rates, amount or
method or methods of calculation of preferential dividends, whether cumulative
or non-cumulative or partially cumulative, and whether such rate(s), amount or
method(s) of calculation shall be subject to change or adjustment in the future,
the currency or currencies of payment, the date or dates and place or places of
payment thereof and the date or dates from which such preferential dividends
shall accrue, the redemption price and terms and conditions of redemption (if
any), the rights of retraction (if any), and the prices and other terms and
conditions of any rights of retraction and whether any additional rights of
retraction may be vested in such holders in the future, voting rights and
conversion or exchange rights (if any) and any sinking fund, purchase fund or
other provisions attaching thereto. Before the issue of the first shares of a
series, the board of directors of Cableshare shall send to the Director (as
defined in the Business Corporations Act (Ontario)) articles of amendment in the
prescribed form containing a description of such series, including the
designation, rights, privileges, restrictions and conditions determined by the
directors.
 
                                   ARTICLE 2
 
                      RANKING OF CLASS A PREFERENCE SHARES
 
2.1    No rights, privileges, restrictions or conditions attaching to a series
of Class A Preference Shares shall confer upon a series a priority in respect of
dividends or return of capital in the event of the liquidation, dissolution or
winding-up of Cableshare over any other series of Class A Preference Shares. The
Class A Preference Shares of each series shall rank on a parity with the Class A
Preference Shares of every other series with respect to priority in the payment
of dividends and the return of capital and the distribution of assets of
Cableshare in the event of the liquidation, dissolution or winding-up of
Cableshare, whether voluntary or involuntary, or any other distribution of the
assets of Cableshare among its shareholders for the purpose of winding up its
affairs.
 
2.2    The Class A Preference Shares shall be entitled to priority over the
common shares of Cableshare and over any other shares of any other class of
Cableshare ranking junior to the Class A Preference Shares with respect to
priority in the payment of dividends and the return of capital and the
distribution of assets in the event of the liquidation, dissolution or
winding-up of Cableshare, whether voluntary or involuntary, or any other
distribution of the assets of Cableshare among its shareholders for the purpose
of winding up its affairs.
 
2.3    If any amount of cumulative dividends, whether or not declared, or
declared non-cumulative dividends or amount payable on a return of capital in
the event of the liquidation, dissolution or winding-up of Cableshare in respect
of a series of Class A Preference Shares is not paid in full, the Class A
Preference Shares of all series shall participate rateably in respect of all
accumulated cumulative dividends, whether or not declared, and all declared
non-cumulative dividends in accordance with the sums that would be payable on
such shares if all such dividends were declared and paid in full, and in respect
of amounts payable on return of capital in the event of the liquidation,
dissolution or winding-up of Cableshare in accordance with the sums that would
be payable on such repayment of capital if all sums so payable were paid in
full; provided, however, that in the event of there being insufficient assets to
satisfy in full all such claims as aforesaid, the claims of the holders of the
Class A Preference Shares with respect to amounts payable on return of capital
shall first be paid and satisfied and any assets remaining thereafter shall be
applied towards the payment and satisfaction of claims in respect of dividends.
 
                                       26
<PAGE>   27
 
2.4    The Class A Preference Shares of any series may also be given such other
preferences not inconsistent with the provisions hereof over the common shares
and over any other shares ranking junior to the Class A Preference Shares as may
be determined in the case of such series of Class A Preference Shares.
 
2.5    In the event of the liquidation, dissolution or winding-up of Cableshare,
whether voluntary or involuntary, or any other distribution of the assets of
Cableshare among its shareholders for the purpose of winding up its affairs, the
holders of each series of Class A Preference Shares shall, before any amount
shall be paid to or any property or assets of Cableshare distributed among the
holders of the common shares of Cableshare or any other shares of Cableshare
ranking junior to the Class A Preference Shares, be entitled to receive: (i) an
amount equal to the stated capital attributed to each series of Class A
Preference Shares, respectively, together with, in the case of a series of Class
A Preference Shares entitled to cumulative dividends thereon, all unpaid
accumulated cumulative dividends, whether or not declared (which for such
purpose shall be calculated as if such cumulative dividends were accruing from
day to day for the period from the expiration of the last period for which such
cumulative dividends were paid up to but excluding the date of distribution)
and, in the case of a series of Class A Preference Shares entitled to
non-cumulative dividends, all declared and unpaid non-cumulative dividends
thereon; and (ii) if such liquidation, dissolution, winding-up or distribution
shall be voluntary, an additional amount, if any, equal to any premium which
would have been payable on the redemption of any series of Class A Preference
Shares had they been called for redemption by Cableshare effective the date of
distribution and, if any series of Class A Preference Shares could not be
redeemed on such date, then an additional amount equal to the greatest premium,
if any, which would have been payable on the redemption of any other series of
Class A Shares.
 
                                   ARTICLE 3
 
                RESTRICTIONS ON DIVIDENDS AND REDEMPTIONS, ETC.
 
3.1    Except with the approval of all the holders of any issued and outstanding
Class A Preference Shares, no dividends shall at any time be declared or paid on
or set apart for payment on the common shares or any other shares of Cableshare
ranking junior to the Class A Preference Shares unless all dividends up to and
including the dividend payable for the last completed period for which such
dividends shall be payable on each series of Class A Preference Shares then
issued and outstanding shall have been declared and paid or set apart for
payment at the date of such declaration or payment or setting apart for payment
on the common shares or such other shares of Cableshare ranking junior to the
Class A Preference Shares; nor shall Cableshare call for redemption, redeem,
purchase for cancellation, acquire for value or reduce or otherwise pay off any
of the Class A Preference Shares (less than the total amount then outstanding)
or any common shares or any other shares of Cableshare ranking junior to the
Class A Preference Shares unless and until all dividends up to and including the
dividends payable for the last completed period for which such dividends shall
be payable on each series of the Class A Preference Shares then issued and
outstanding shall have been declared and paid or set apart for payment at the
date of such call for redemption, purchase, acquisition, reduction or other
payment.
 
                                   ARTICLE 4
 
                                 VOTING RIGHTS
 
4.1    Except as hereinafter referred to or as otherwise provided by law or in
accordance with any voting rights which may from time to time be attached to any
series of Class A Preference Shares, the holders of the Class A Preference
Shares as a class shall not be entitled as such to receive notice of, to attend
or to vote at any meeting of the shareholders of Cableshare.
 
                                       27
<PAGE>   28
 
                                   ARTICLE 5
 
                      SPECIFIC MATTERS REQUIRING APPROVAL
 
5.1    The approval of the holders of the Class A Shares, given in the manner
described in section 6.1 below, shall be required for the creation of any new
shares ranking prior to or on a parity with the Class A Preference Shares, and
if, but only so long as, any cumulative dividends are in arrears or any declared
non-cumulative dividends are unpaid on any outstanding series of Class A
Preference Shares, for the issuance of any additional series of Class A
Preference Shares or of any shares ranking prior to or on a parity with the
Class A Preference Shares.
 
5.2    The provisions of section 1.1 to 6.1, inclusive, may be deleted, amended,
modified or varied in whole or in part by a certificate of amendment issued by
the Director appointed under the Business Corporations Act (Ontario), but only
with the prior approval of the holders of the Class A Preference Shares given as
hereinafter specified in addition to any other approval required by the Business
Corporations Act (Ontario) or any other statutory provision of like or similar
effect, from time to time in force.
 
                                   ARTICLE 6
 
            APPROVAL OF THE HOLDERS OF THE CLASS A PREFERENCE SHARES
 
6.1    The approval of the holders of the Class A Preference Shares with respect
to any and all matters hereinbefore referred to may be given by at least
two-thirds of the votes cast at a meeting of the holders of the Class A
Preference Shares duly called for that purpose and held upon at least 21 days'
notice at which the holders of 25% of the outstanding Class A Preference Shares
are present or represented by proxy. If at any such meeting the holders of 25%
of the outstanding Class A Preference Shares are not present or represented by
proxy within one-half hour after the time appointed for such meeting, then the
meeting shall be adjourned to such date being not less than 30 days later and to
such time and place as may be appointed by the chairman and not less than 21
days' notice shall be given of such adjourned meeting. At such adjourned
meeting, the holders of the Class A Preference Shares present or represented by
proxy may transact the business for which the meeting was originally called and
a resolution passed thereat by not less than two-thirds of the votes cast at
such adjourned meeting shall constitute the approval of the holders of the Class
A Preference Shares referred to above. The formalities to be observed with
respect to the giving of notice of any such meeting or adjourned meeting and the
conduct thereof shall be those from time to time prescribed by the Business
Corporations Act (Ontario) and the by-laws of Cableshare with respect to
meetings of shareholders. On every poll taken at every such meeting or adjourned
meeting, every holder of Class A Preference Shares shall be entitled to one vote
in respect of each Class A Preference Share held.
 
                                       28

<PAGE>   1
 
                                                                   EXHIBIT 10.20
 
                               SUPPORT AGREEMENT
 
     MEMORANDUM OF AGREEMENT made as of the    --   day of November, 1996.
 
B E T W E E N:
                       SOURCE MEDIA, INC.
                       a corporation subsisting under the laws
                       of the State of Delaware,
 
                       (hereinafter referred to as "Source"),
 
                                                              OF THE FIRST PART,
 
                                                - and -
 
                       CABLESHARE INC.,
                       a corporation subsisting under the laws
                       of the Province of Ontario,
 
                       (hereinafter referred to as "Cableshare"),
 
                                                             OF THE SECOND PART.
 
     WHEREAS pursuant to an arrangement agreement (the "Arrangement Agreement")
dated as of November 13, 1996 between Source and Cableshare, the parties agreed
that Source and Cableshare would execute and deliver a support agreement
forthwith following the filing of articles of arrangement to give effect to the
arrangement referred to therein, such support agreement to contain the terms and
conditions set forth in Exhibit 5 to the Arrangement Agreement together with
such other terms and conditions as may be customary for agreements of a similar
nature and as may be agreed to by the parties to the Arrangement Agreement,
acting reasonably;
 
     AND WHEREAS pursuant to an arrangement (the "Arrangement") effected by
articles of arrangement dated    --   , 1996 filed pursuant to the Business
Corporations Act (Ontario), each shareholder of Cableshare who properly elected
to do so received Exchangeable Non-Voting Shares in the capital of Cableshare
("Exchangeable Shares") for the issued and outstanding Class A Subordinate
Voting Shares in the capital of Cableshare ("Class A Shares") and the issued and
outstanding Class B Multiple Voting Shares in the capital of Cableshare ("Class
B Shares") held by such shareholder, in a ratio determined pursuant to the
Arrangement Agreement;
 
     AND WHEREAS pursuant to the Arrangement, each other shareholder of
Cableshare (other than those who properly exercised dissent rights and will
become entitled to be paid the fair value of the Cableshare shares held by them
and other than IT Network, Inc. and 997758 Ontario Inc. (the "Source
Affiliates")), received issued and outstanding shares of the Common Stock of
Source ("Source Common Shares"), in a ratio determined pursuant to the
Arrangement Agreement in exchange for the issued and outstanding Class A Shares
and Class B Shares held by such shareholder;
 
     AND WHEREAS pursuant to the Arrangement and immediately following the
above-mentioned exchanges and conversions of shares, each issued and outstanding
Class A Share and Class B Share was converted into one common share in the
capital of Cableshare (a "Cableshare New Common Share");
 
     AND WHEREAS pursuant to the Arrangement and the exchanges and conversions
of shares referred to above, Source holds all of the issued and outstanding
shares of Cableshare other than the issued and outstanding Exchangeable Shares;
 
                                        1
<PAGE>   2
 
     AND WHEREAS the above-mentioned articles of arrangement set forth the
rights, privileges, restrictions and conditions (collectively the "Share
Provisions") attaching to the Exchangeable Shares;
 
     AND WHEREAS the parties hereto desire to make appropriate provisions and to
establish a procedure whereby Source will take certain actions and make certain
payments and deliveries necessary to ensure that Cableshare will be able to make
certain payments and to deliver or cause to be delivered Source Common Shares in
satisfaction of the obligations of Cableshare under the Share Provisions with
respect to the payment and satisfaction of dividends, Liquidation Amounts,
Retraction Prices and Redemption Prices (as such terms are defined in the Share
Provisions), all in accordance with the Share Provisions;
 
     NOW THEREFORE in consideration of the respective covenants and agreements
provided in this agreement and for other good and valuable consideration (the
receipt and sufficiency of which are hereby acknowledged), the parties agree as
follows:
 
                                   ARTICLE 1
 
                         DEFINITIONS AND INTERPRETATION
 
1.1    DEFINED TERMS. Each term denoted herein by initial capital letters and
not otherwise defined herein shall have the meaning ascribed thereto in the
Share Provisions, unless the context requires otherwise.
 
1.2    INTERPRETATION NOT AFFECTED BY HEADINGS, ETC. The division of this
agreement into articles, sections and paragraphs and the insertion of headings
are for convenience of reference only and shall not affect the construction or
interpretation of this agreement.
 
1.3    NUMBER, GENDER, ETC. Words importing the singular number only shall
include the plural and vice versa. Words importing the use of any gender shall
include all genders.
 
1.4    DATE FOR ANY ACTION. If any date on which any action is required to be
taken under this agreement is not a Business Day, such action shall be required
to be taken on the next succeeding Business Day. For the purposes of this
agreement, a "Business Day" means a day other than a Saturday, a Sunday or a
statutory holiday in the City of Toronto, Ontario or the City of Dallas, Texas.
 
                                   ARTICLE 2
 
                       COVENANTS OF SOURCE AND CABLESHARE
 
2.1    FUNDING OF CABLESHARE. So long as any Exchangeable Shares are
outstanding, Source will:
 
      (a) not declare or pay any dividend on Source Common Shares unless
          Cableshare shall simultaneously declare or pay, as the case may be, an
          equivalent dividend on the Exchangeable Shares;
 
      (b) cause Cableshare to declare simultaneously with the declaration of
          any dividend on Source Common Shares an equivalent dividend on the
          Exchangeable Shares and, when such dividend is paid on Source Common
          Shares, cause Cableshare to pay simultaneously therewith such
          equivalent dividend on the Exchangeable Shares, in each case in
          accordance with the Share Provisions;
 
      (c) advise Cableshare sufficiently in advance of the declaration by
          Source of any dividend on Source Common Shares and take all such other
          actions as are necessary, in cooperation with Cableshare, to ensure
          that the respective declaration date, record date and payment date for
          a dividend on the Exchangeable Share shall be the same as the record
          date, declaration date and payment date for the corresponding dividend
          on Source Common Shares;
 
      (d) ensure that the record date for any dividend declared on Source
          Common Shares is not less than 10 Business Days after the declaration
          date for such dividend;
 
      (e) provide or cause to be provided to Cableshare, by any means which
          Source deems appropriate from time to time, such assets, funds and
          other property as may be necessary in order that
 
                                        2
<PAGE>   3
 
          Cableshare will have sufficient assets, funds and other property
          available to enable the due declaration and the due and punctual
          payment, in accordance with applicable law, of all dividends on the
          Exchangeable Shares in accordance with the Share Provisions;
 
      (f) take all such actions and do all such things as are necessary or
          desirable to enable and permit Cableshare, in accordance with
          applicable law, to pay and otherwise perform its obligations with
          respect to the satisfaction of the Liquidation Amount in respect of
          each issued and outstanding Exchangeable Share upon the liquidation,
          dissolution or winding-up of Cableshare, including without limitation,
          all such actions and all such things as are necessary or desirable to
          enable and permit Cableshare to cause to be delivered Source Common
          Shares to the holders of Exchangeable Shares in accordance with the
          provisions of Article 5 of the Share Provisions; and
 
      (g) take all such actions and do all such things as are necessary or
          desirable to enable and permit Cableshare, in accordance with
          applicable law, to pay and otherwise perform its obligations with
          respect to the satisfaction of the Retraction Price and the Redemption
          Price, including without limitation, all such actions and all such
          things as are necessary or desirable to enable and permit Cableshare
          to cause to be delivered Source Common Shares to the holders of
          Exchangeable Shares, upon the redemption of the Exchangeable Shares in
          accordance with the provisions of Article 6 or 7 of the Share
          Provisions, as the case may be.
 
2.2    SEGREGATION OF FUNDS. Upon Source providing or causing to be provided to
Cableshare any funds, assets or other property in accordance with section 2.1,
Cableshare will deposit such funds in a separate account and segregate such
assets and other property, and will use such funds, assets and other property
exclusively for the payment of dividends and the payment or other satisfaction
of the Liquidation Amount, the Retraction Price or the Redemption Price, as
applicable.
 
2.3    RESERVATION OF SOURCE COMMON SHARES. Source hereby represents, warrants
and covenants that it has irrevocably reserved for issuance and will at all
times keep available, free from pre-emptive and other rights, out of its
authorized and unissued capital stock such number of Source Common Shares (or
other shares or securities into which Source Common Shares may be reclassified
or changed as contemplated by section 2.7 hereof) (a) as is equal to the sum of
(i) the number of Exchangeable Shares issued and outstanding from time to time
and (ii) the number of Exchangeable Shares issuable upon the exercise of all
rights to acquire Exchangeable Shares outstanding from time to time and (b) as
are now and may hereafter be required to enable and permit Cableshare to meet
its obligations hereunder, under the Voting and Exchange Trust Agreement, under
the Share Provisions and under any other security or commitment pursuant to
which Source may now or hereafter be required to issue Source Common Shares.
 
2.4    NOTIFICATION OF CERTAIN EVENTS. In order to assist Source to comply with
its obligations hereunder, Cableshare will give Source notice of each of the
following events at the time set forth below:
 
      (a) in the event of any determination by the Board of Directors of
          Cableshare to institute voluntary liquidation, dissolution or
          winding-up proceedings with respect to Cableshare or to effect any
          other distribution of the assets of Cableshare among its shareholders
          for the purpose of winding up its affairs, at least 60 days prior to
          the proposed effective date of such liquidation, dissolution,
          winding-up or other distribution;
 
      (b) immediately, upon the earlier of receipt by Cableshare of notice of
          and Cableshare otherwise becoming aware of any threatened or
          instituted claim, suit, petition or other proceedings with respect to
          the involuntary liquidation, dissolution or winding-up of Cableshare
          or to effect any other distribution of the assets of Cableshare among
          its shareholders for the purpose of winding up its affairs;
 
      (c) immediately, upon receipt by Cableshare of a Retraction Request;
 
      (d) at least 130 days prior to any accelerated Automatic Redemption Date
          determined by the Board of Directors of Cableshare in accordance with
          the Share Provisions; and
 
                                        3
<PAGE>   4
 
      (e) as soon as practicable upon the issuance by Cableshare of any
          Exchangeable Shares or rights to acquire Exchangeable Shares (other
          than the issuance of Exchangeable Shares upon the conversion of
          outstanding Class A Shares or Class B Shares pursuant to the
          Arrangement).
 
2.5    DELIVERY OF SOURCE COMMON SHARES. In furtherance of its obligations under
sections 2.1(f) and (g) hereof, upon notice from Cableshare of any event which
requires Cableshare to cause to be delivered Source Common Shares to any holder
of Exchangeable Shares, Source shall forthwith issue and deliver the requisite
Source Common Shares to or to the order of the former holder of the surrendered
Exchangeable Shares, as Cableshare shall direct. All such Source Common Shares
shall be duly issued as fully paid and non-assessable and shall be free and
clear of any lien, claim or encumbrance. In consideration of the issuance of
each such Source Common Share by Source, Cableshare shall issue to Source or as
Source shall direct, Cableshare New Common Shares having equivalent value.
 
2.6    QUALIFICATION OF SOURCE COMMON SHARES. If any Source Shares (or other
shares or securities into which Source Common Shares may be reclassified or
changed as contemplated by section 2.7 hereof) to be issued and delivered
hereunder require registration or qualification with or approval of or the
filing of any document, including any prospectus or similar document or the
taking of any proceeding with or the obtaining of any order, ruling or consent
from any governmental or regulatory authority under any Canadian or United
States federal, provincial or state law or regulation or pursuant to the rules
and regulations of any regulatory authority or the fulfilment of any other legal
requirement before such shares (or such other shares or securities) may be
issued and delivered by Source at the direction of Cableshare to the initial
holder thereof or in order that such shares (or such other shares or securities)
may be freely traded thereafter (other than any restrictions on transfer by
reason of a holder being a "control person" or affiliate of Source for purposes
of United States federal or state securities law), Source will in good faith
expeditiously take all such actions and do all such things as are necessary or
desirable to cause such Source Common Shares (or such other shares or
securities) to be and remain duly registered, qualified or approved. Source will
in good faith expeditiously take all such actions and do all such things as are
necessary or desirable to cause all Source Common Shares (or such other shares
or securities) to be delivered hereunder to be listed, quoted or posted for
trading on all stock exchanges and quotation systems on which outstanding Source
Common Shares (or such other shares or securities) are listed, quoted or posted
for trading at such time.
 
2.7    ECONOMIC EQUIVALENCE.
 
      (a) Source will not without prior approval of Cableshare and the prior
          approval of the holders of the Exchangeable Shares given in accordance
          with Section 10.2 of the Share Provisions:
 
          (i)   issue or distribute Source Common Shares (or securities
                exchangeable for or convertible into or carrying rights to
                acquire Source Common Shares) to the holders of all or
                substantially all of the then outstanding Source Common Shares 
                by way of stock dividend or other distribution, other than an 
                issue of Source Common Shares (or securities exchangeable for or
                convertible into or carrying rights to acquire Source Common
                Shares) to holders of Source Common Shares who exercise an 
                option to receive dividends in Source Common Shares (or 
                securities exchangeable for or convertible into or carrying 
                rights to acquire Source Common Shares) in lieu of receiving 
                cash dividends; or
 
          (ii)  issue or distribute rights, options or warrants to the holders
                of all or substantially all of the then outstanding Source 
                Common Shares entitling them to subscribe for or to purchase 
                Source Common Shares (or securities exchangeable for other 
                convertible into or carrying rights to acquire Source Common 
                Shares); or
 
          (iii) issue or distribute to the holders of all or substantially all
                of the then outstanding Source Common Shares (A) shares or
                securities of Source of any class other than Source Common 
                Shares (other than shares convertible into or exchangeable for 
                or carrying rights to acquire Source Common Shares), (B) rights,
                options or warrants other than those referred to in section
                2.7(a)(ii) above, (C) evidences of indebtedness of Source or (D)
                assets of Source;
 
                                        4
<PAGE>   5
 
          unless the economic equivalent on a per share basis of such rights,
          options, securities, shares, evidences of indebtedness or other assets
          is issued or distributed simultaneously to holders of the Exchangeable
          Shares, provided that, for greater certainty, the above restrictions
          shall not apply to any securities issued or distributed by Source in
          order to give effect to and to consummate the transactions
          contemplated by, and in accordance with, the Arrangement Agreement.
 
      (b) Source will not without the prior approval of Cableshare and the
          prior approval of the holders of the Exchangeable Shares given in
          accordance with Section 10.2 of the Share Provisions:
 
          (i)   subdivide, redivide or change the then outstanding Source Common
                Shares into a greater number of Source Common Shares; or
 
          (ii)  reduce, combine or consolidate or change the then outstanding
                Source Common Shares into a lesser number of Source Common
                Shares; or
 
          (iii) reclassify or otherwise change Source Common Shares or effect an
                amalgamation, merger, reorganization or other transaction
                affecting Source Common Shares;
 
          unless the same or an economically equivalent change shall
          simultaneously be made to, or in the rights of the holders of, the
          Exchangeable Shares.
 
      (c) Source will ensure that the record date for any event referred to in
          section 2.7(a) or (b) above, or (if no record date is applicable for
          such event) the effective date for any such event, is not less than 20
          Business Days after the date on which such event is declared or
          announced by Source (with simultaneous notice thereof to be given by
          Source to Cableshare).
 
      (d) The Board of Directors of Cableshare shall determine, in good faith
          and in its sole discretion (with the assistance of such reputable and
          qualified independent financial advisors and/or other experts as the
          Board may require), economic equivalence for the purposes of any event
          referred to in section 2.7(a) or (b) above and each such determination
          shall be conclusive and binding on Source. In making each such
          determination, the following factors shall, without excluding other
          factors determined by the Board to be relevant, be considered by the
          Board of Directors of Cableshare:
 
          (i)   in the case of any stock dividend or other distribution payable
                in Source Common Shares, the number of such shares issued in
                proportion to the number of Source Common Shares previously
                outstanding;
 
          (ii)  in the case of the issuance or distribution of any rights,
                options or warrants to subscribe for or purchase Source Common
                Shares (or securities exchangeable for or convertible into or
                carrying rights to acquire Source Common Shares), the
                relationship between the exercise price of each such right,
                option or warrant and the current market value (as determined by
                the Board of Directors of Cableshare in the manner above
                contemplated) of a Source Common Share;
 
          (iii) in the case of the issuance or distribution of any other form of
                property (including without limitation) any shares or securities
                of Source of any class other than Source Common Shares, any
                rights, options or warrants other than those referred to in
                section 2.7(d)(ii) above, any evidences of indebtedness of 
                Source or any assets of Source), the relationship between the 
                fair market value (as determined by the Board of Directors of
                Cableshare in the manner above contemplated) of such property to
                be issued or distributed with respect to each outstanding Source
                Common Share and the current market value (as determined by the
                Board of Directors of Cableshare in the manner above
                contemplated) of a Source Common Share;
 
          (iv)  in the case of any subdivision, redivision or change of the then
                outstanding Source Common Shares into a greater number of Source
                Common Shares or the reduction, combination or consolidation or
                change of the then outstanding Source Common Shares
 
                                        5
<PAGE>   6
 
               into a lesser number of Source Common Shares or any amalgamation,
               merger, reorganization or other transaction affecting Source
               Common Shares, the effect thereof upon the then outstanding
               Source Common Shares; and
 
          (v)  in all such cases, the general taxation consequences of the
               relevant event to holders of Exchangeable Shares to the extent
               that such consequences may differ from the taxation consequences
               to holders of Source Common Shares as a result of differences
               between taxation laws of Canada and the United States (except for
               any differing consequences arising as a result of differing
               marginal taxation rates and without regard to the individual
               circumstances of holders of Exchangeable Shares).
 
          For purposes of the foregoing determinations, the current market value
          of any security listed and traded or quoted on a securities exchange
          shall be the weighted average of the daily trading prices of such
          security during a period of not less than 20 consecutive trading days
          ending not more than five trading days before the date of
          determination on the principal securities exchange on which such
          securities are listed and traded or quoted; provided, however, that if
          in the opinion of the Board of Directors of Cableshare the public
          distribution or trading activity of such securities during such period
          does not create a market which reflects the fair market value of such
          securities, then the current market value thereof shall be determined
          by the Board of Directors of Cableshare, in good faith and in its sole
          discretion (with the assistance of such reputable and qualified
          independent financial advisors and/or other experts as the Board may
          require), and provided further that any such determination by the
          Board shall be conclusive and binding on Source.
 
2.8    TENDER OFFERS, ETC. In the event that a tender offer, share exchange
offer, issuer bid, take-over bid or similar transaction with respect to Source
Common Shares (an "Offer") is proposed by Source or is proposed to Source or its
shareholders and is recommended by the Board of Directors of Source, or is
otherwise effected or to be effected with the consent or approval of the Board
of Directors of Source, Source will use its reasonable efforts expeditiously and
in good faith to take all such actions and do all such things as are necessary
or desirable to enable and permit holders of Exchangeable Shares to participate
in such Offer to the same extent and on an economically equivalent basis as the
holders of Source Common Shares, without discrimination. Without limiting the
generality of the foregoing, Source will use its reasonable efforts
expeditiously and in good faith to ensure that holders of Exchangeable Shares
may participate in all such Offers without being required to retract
Exchangeable Shares as against Cableshare (or, if so required, to ensure that
any such retraction shall be effective only upon, and shall be conditional upon,
the closing of the Offer and only to the extent necessary to tender or deposit
to the Offer).
 
2.9    OWNERSHIP OF OUTSTANDING SHARES. Without the prior approval of Cableshare
and the prior approval of the holders of the Exchangeable Shares given in
accordance with Section 10.2 of the Share Provisions, Source covenants and
agrees in favour of Cableshare that, as long as any outstanding Exchangeable
Shares are owned by any person or entity other than Source or any of its
Affiliates, Source will be and remain the direct or indirect beneficial owner of
all issued and outstanding common shares in the capital of Cableshare.
 
2.10   SOURCE NOT TO VOTE EXCHANGEABLE SHARES. Source covenants and agrees that
it will appoint and cause to be appointed proxyholders with respect to all
Exchangeable Shares held by Source and its Affiliates for the sole purpose of
attending each meeting of holders of Exchangeable Shares in order to be counted
as part of the quorum for each such meeting. Source further covenants and agrees
that it will not, and will cause its Affiliates not to, exercise any voting
rights which may be exercisable by holders of Exchangeable Shares from time to
time pursuant to the Share Provisions or pursuant to the provisions of the
Business Corporations Act (Ontario) (or any successor or other corporate statute
by which Cableshare may in the future be governed) with respect to any
Exchangeable Shares held by it or by its Affiliates in respect of any matter
considered at any meeting of holders of Exchangeable Shares.
 
                                        6
<PAGE>   7
 
                                   ARTICLE 3
 
                                    GENERAL
 
3.1    TERM. This agreement shall come into force and be effective as of the
date hereof and shall terminate and be of no further force and effect at such
time as no Exchangeable Shares (or securities or rights convertible into or
exchangeable for or carrying rights to acquire Exchangeable Shares) are held by
any party other than Source and any of its Affiliates.
 
3.2    CHANGES IN CAPITAL OF SOURCE AND CABLESHARE. At all times after the
occurrence of any event effected pursuant to sections 2.7 and 2.8 hereof, as a
result of which either Source Common Shares or the Exchangeable Shares or both
are in any way changed, this agreement shall forthwith be amended and modified
as necessary in order that it shall apply with full force and effect, mutatis
mutandis, to all new securities into which Source Common Shares or the
Exchangeable Shares or both are so changed and the parties hereto shall execute
and deliver an agreement in writing giving effect to and evidencing such
necessary amendments and modifications.
 
3.3    SEVERABILITY. If any provision of this agreement is held to be invalid,
illegal or unenforceable, the validity, legality or enforceability of the
remainder of this agreement shall not in any way be affected or impaired thereby
and this agreement shall be carried out as nearly as possible in accordance with
its original terms and conditions.
 
3.4    AMENDMENTS, MODIFICATIONS, ETC. This agreement may not be amended or
modified except by an agreement in writing executed by Cableshare and Source and
approved by the holders of the Exchangeable Shares in accordance with Section
10.2 of the Share Provisions.
 
3.5    MINISTERIAL AMENDMENTS. Notwithstanding the provisions of section 3.4,
the parties to this agreement may in writing, at any time and from time to time,
without the approval of the holders of the Exchangeable Shares, amend or modify
this agreement for the purposes of:
 
      (a) adding to the covenants of either or both parties for the protection
          of the holders of the Exchangeable Shares;
 
      (b) making such amendments or modifications not inconsistent with this
          agreement as may be necessary or desirable with respect to matters or
          questions which, in the opinion of the Board of Directors of each of
          Cableshare and Source, it may be expedient to make, provided that each
          such Board of Directors shall be of the opinion that such amendments
          or modifications will not be prejudicial to the interests of the
          holders of the Exchangeable Shares; or
 
      (c) making such changes or corrections which, on the advice of counsel to
          Cableshare and Source, are required for the purpose of curing or
          correcting any ambiguity or defect or inconsistent provision or
          clerical omission or mistake or manifest error, provided that the
          Boards of Directors of each of Cableshare and Source shall be of the
          opinion that such changes or corrections will not be prejudicial to
          the interests of the holders of the Exchangeable Shares.
 
3.6    MEETING TO CONSIDER AMENDMENTS. Cableshare, at the request of Source,
shall call a meeting or meetings of the holders of the Exchangeable Shares for
the purpose of considering any proposed amendment or modification requiring
approval pursuant to section 3.4 hereof. Any such meeting or meetings shall be
called and held in accordance with the by-laws of Cableshare, the Share
Provisions and all applicable laws.
 
3.7    AMENDMENTS ONLY IN WRITING. No amendment to or modification or waiver of
any of the provisions of this agreement otherwise permitted hereunder shall be
effective unless made in writing and signed by both of the parties hereto.
 
3.8    ENUREMENT. This agreement shall be binding upon and enure to the benefit
of the parties hereto and their respective successors and assigns.
 
                                        7
<PAGE>   8
 
3.9    NOTICES TO PARTIES. All notices and other communications between the
parties shall be in writing and shall be deemed to have been given if delivered
personally or by confirmed telecopy to the parties at the following addresses
(or at such other address for either such party as shall be specified in like
notice):
 
      (a)  if to Source at:
 
           Source Media, Inc.
           8140 Walnut Hill Lane
           Suite 1000
           Dallas, Texas 75231
           U.S.A.
 
           Attention: Chairman and CEO
           Telecopier: (214) 890-9132
 
      (b)  if to Cableshare at:
 
           Cableshare Inc.
           150 Dufferin Avenue
           Suite 906
           London, Ontario
           Canada N6A 5N6
 
           Attention: President
           Telecopier: (519) 663-0339
 
Any notice or other communication given personally shall be deemed to have been
given and received upon delivery thereof and if given by telecopy shall be
deemed to have been given and received on the date of confirmed receipt thereof
unless such day is not a Business Day in which case it shall be deemed to have
been given and received upon the immediately following Business Day.
 
3.10   COUNTERPARTS. This agreement may be executed in counterparts, each of
which shall be deemed an original, and all of which taken together shall
constitute one and the same instrument.
 
3.11   JURISDICTION. This agreement shall be construed and enforced in
accordance with the laws of the Province of Ontario and the laws of Canada
applicable therein.
 
3.12   ATTORNMENT. Source agrees that any action or proceeding arising out of or
relating to this agreement may be instituted in the courts of Ontario, waives
any objection which it may have now or hereafter to the venue of any such action
or proceeding, irrevocably submits to the jurisdiction of the said courts in any
such action or proceeding, agrees to be bound by any judgment of the said courts
and not to seek, and hereby waives, any review of the merits of any such
judgment by the courts of any other jurisdiction and hereby appoints Cableshare
at its registered office in the Province of Ontario as Source's attorney for
service of process.
 
                                        8
<PAGE>   9
 
      IN WITNESS WHEREOF, the parties hereto have caused this agreement to be
duly executed as of the date first above written.
 
                                            SOURCE MEDIA, INC.
 
                                            by
                                              ---------------------------------

                                            -----------------------------------


                                            CABLESHARE INC.
 
                                            by
                                              ---------------------------------

                                            -----------------------------------

                                        9
                                            

<PAGE>   1
 
                                                                   EXHIBIT 10.21
 
                      VOTING AND EXCHANGE TRUST AGREEMENT
 
     MEMORANDUM OF AGREEMENT made as of the    --   day of November, 1996.
 
B E T W E E N:
                       SOURCE MEDIA, INC.,
                       a corporation subsisting under the
                       laws of the State of Delaware,
 
                       (hereinafter referred to as "Source"),
 
                                                              OF THE FIRST PART,
 
                                                - and -
 
                       CABLESHARE INC.,
                       a corporation subsisting under the laws
                       of the Province of Ontario,
 
                       (hereinafter referred to as "Cableshare"),
 
                                                             OF THE SECOND PART,
 
                                                - and -
 
                       -- TRUST COMPANY,
                       a trust company incorporated under the
                       laws of --,
 
                       (hereinafter referred to as the "Trustee"),
 
                                                              OF THE THIRD PART.
 
     WHEREAS pursuant to an arrangement agreement (the "Arrangement Agreement")
dated as of November 13, 1996 between Source and Cableshare, the parties agreed
that Source and Cableshare would execute and deliver a voting and exchange trust
agreement forthwith following the filing of articles of arrangement to give
effect to the arrangement referred to therein, such voting and exchange trust
agreement to contain the terms and conditions set forth in Exhibit 6 to the
Arrangement Agreement together with such other terms and conditions as may be
customary for agreements of a similar nature and as may be agreed to by the
parties to the Arrangement Agreement, acting reasonably;
 
     AND WHEREAS pursuant to an arrangement (the "Arrangement") effected by
articles of arrangement dated    --   , 1996 filed pursuant to the Business
Corporations Act (Ontario), each shareholder of Cableshare who properly elected
to do so received Exchangeable Non-Voting Shares in the capital of Cableshare
("Exchangeable Shares") for the issued and outstanding Class A Subordinate
Voting Shares in the capital of Cableshare ("Class A Shares") and the issued and
outstanding Class B Multiple Voting Shares in the capital of Cableshare ("Class
B Shares") held by such shareholder, in a ratio determined pursuant to the
Arrangement Agreement;
 
     AND WHEREAS pursuant to the Arrangement, each other shareholder of
Cableshare (other than those who properly exercised dissent rights and will
become entitled to be paid the fair value of the Cableshare shares held by them
and other than IT Network, Inc. and 997758 Ontario Inc. (the "Source
Affiliates")), received issued and outstanding shares of the Common Stock of
Source ("Source Common Shares"), in a
 
                                        1
<PAGE>   2
 
ratio determined pursuant to the Arrangement Agreement in exchange for the
issued and outstanding Class A Shares and Class B Shares held by such
shareholder;
 
     AND WHEREAS pursuant to the Arrangement and immediately following the
above-mentioned exchanges and conversions of shares, each issued and outstanding
Class A Share and Class B Share was converted into one common share in the
capital of Cableshare (a "Cableshare New Common Share");
 
     AND WHEREAS pursuant to the Arrangement and the exchanges and conversions
of shares referred to above, Source holds all of the issued and outstanding
shares of Cableshare other than the issued and outstanding Exchangeable Shares;
 
     AND WHEREAS the above-mentioned articles of arrangement set forth the
rights, privileges, restrictions and conditions (collectively the "Share
Provisions") attaching to the Exchangeable Shares;
 
     AND WHEREAS Source is to provide voting rights in Source to each holder
(other than Source, its subsidiaries and Affiliates) from time to time of
Exchangeable Shares, such voting rights per Exchangeable Share to be equivalent
to the voting rights per Source Common Share;
 
     AND WHEREAS Source is to grant to and in favour of the holders (other than
Source, its subsidiaries and Affiliates) from time to time of Exchangeable
Shares the right, in the circumstances set forth herein, to require Source to
purchase from each such holder all but not less than all the Exchangeable Shares
held by the holder;
 
     AND WHEREAS the parties hereto desire to make appropriate provisions and to
establish a procedure whereby votes at Source Meetings shall be exercisable by
holders (other than Source, its subsidiaries and Affiliates) from time to time
of Exchangeable Shares by and through the Trustee, which will hold legal title
to the Source Special Voting Share to which voting rights attach for the benefit
of such holders, and whereby the right to require Source to purchase
Exchangeable Shares from the holders thereof (other than Source, its
subsidiaries and Affiliates) shall be exercisable by such holders from time to
time of Exchangeable Shares by and through the Trustee, which will hold legal
title to such right for the benefit of such holders;
 
     AND WHEREAS these recitals and any statements of fact in this trust
agreement are made by Source and Cableshare and not by the Trustee;
 
     NOW THEREFORE in consideration of the respective covenants and agreements
provided in this agreement and for other good and valuable consideration (the
receipt and sufficiency of which are hereby acknowledged), the parties agree as
follows:
 
                                   ARTICLE 1
 
                         DEFINITIONS AND INTERPRETATION
 
1.1    DEFINITIONS. In this trust agreement, the following terms shall have the
following meanings:
 
      "AFFILIATE" of any person means any other person directly or indirectly
      controlled by, or under control of, that person. For the purposes of this
      definition, "control" (including, with correlative meanings, the terms
      "controlled by" and "under common control of"), as applied to any person,
      means the possession by another person, directly or indirectly, of the
      power to direct or cause the direction of the management and policies of
      that first mentioned person, whether through the ownership of voting
      securities, by contract or otherwise.
 
      "AUTOMATIC EXCHANGE RIGHTS" means the benefit of the obligation of Source
      to effect the automatic exchange of Source Common Shares for Exchangeable
      Shares pursuant to section 5.12.
 
      "BENEFICIARIES" means the registered holders from time to time of
      Exchangeable Shares, other than Source, its subsidiaries and Affiliates.
 
      "BENEFICIARY VOTES" has the meaning ascribed thereto in section 4.2.
 
      "BOARD OF DIRECTORS" means the Board of Directors of Cableshare.
 
                                        2
<PAGE>   3
 
      "BUSINESS DAY" means a day other than a Saturday, a Sunday or a statutory
      holiday in the City of Toronto, Ontario or the City of Dallas, Texas.
 
      "CANADIAN DOLLAR EQUIVALENT" means in respect of an amount expressed in a
      foreign currency (the "Foreign Currency Amount") at any date the product
      obtained by multiplying (a) the Foreign Currency Amount by (b) the noon
      spot exchange rate on such date for such foreign currency expressed in
      Canadian dollars as reported by the Bank of Canada or, in the event such
      spot exchange rate is not available, such exchange rate on such date for
      such foreign currency expressed in Canadian dollars as may be deemed by
      the Board of Directors to be appropriate for such purpose.
 
      "CURRENT MARKET PRICE" means, in respect of a Source Common Share on any
      date, the Canadian Dollar Equivalent of the average of the closing bid and
      asked prices of Source Common Shares during a period of 20 consecutive
      trading days ending not more than five trading days before date on the
      National Market System of the National Association of Securities Dealers
      Automated Quotation System, or, if Source Common Shares are not then
      quoted on the National Market System of the National Association of
      Securities Dealers Automated Quotation System, on such other stock
      exchange or automated quotation system on which Source Common Shares are
      listed or quoted, as the case may be, as may be selected by the Board of
      Directors for such purpose; provided, however, that if in the opinion of
      the Board of Directors the public distribution or trading activity of
      Source Common Shares during such period does not create a market which
      reflects the fair market value of a Source Common Share, then the Current
      Market Price of a Source Common Share shall be determined by the Board of
      Directors based upon the advice of such qualified independent financial
      advisors as the Board of Directors of Source may deem to be appropriate,
      and provided further that any such selection, opinion or determination by
      the Board of Directors shall be conclusive and binding.
 
      "EXCHANGE RIGHT" has the meaning ascribed thereto in section 5.1.
 
      "INSOLVENCY EVENT" means the institution by Cableshare of any proceeding
      to be adjudicated a bankrupt or insolvent or to be wound up, or the
      consent of Cableshare to the institution of bankruptcy, insolvency or
      winding-up proceedings against it, or the filing of a petition, answer or
      consent seeking dissolution or winding-up under any bankruptcy, insolvency
      or analogous laws, including without limitation the Companies Creditors'
      Arrangement Act (Canada) and the Bankruptcy and Insolvency Act (Canada),
      and the failure by Cableshare to contest in good faith any such
      proceedings commenced in respect of Cableshare within 15 days of becoming
      aware thereof, or the consent by Cableshare to the filing of any such
      petition or to the appointment of a receiver, or the making by Cableshare
      of a general assignment for the benefit of creditors, or the admission in
      writing by Cableshare of its inability to pay its debts generally as they
      become due, or Cableshare not being permitted, pursuant to solvency
      requirements of applicable law, to redeem any Retracted Shares pursuant to
      Section 6.6 of the Share Provisions.
 
      "LIQUIDATION CALL RIGHT" has the meaning ascribed thereto in the Plan of
      Arrangement.
 
      "LIQUIDATION EVENT" has the meaning ascribed thereto in section 5.12(b).
 
      "LIQUIDATION EVENT EFFECTIVE DATE" has the meaning ascribed thereto in
      section 5.12(c).
 
      "LIST" has the meaning ascribed thereto in section 4.6.
 
      "OFFICER'S CERTIFICATE" means, with respect to Source or Cableshare, as
      the case may be, a certificate signed by any one of the Chairman of the
      Board, the Vice-Chairman of the Board, the President, any Vice-President
      or any other senior officer of Source or Cableshare, as the case may be.
 
      "PERSON" includes an individual, partnership, corporation, company,
      unincorporated syndicate or organization, trust, trustee, executor,
      administrator and other legal representative.
 
      "PLAN OF ARRANGEMENT" means the plan of arrangement of Cableshare
      providing for the Arrangement.
 
      "REDEMPTION CALL RIGHT" has the meaning ascribed thereto in the Share
      Provisions.
 
                                        3
<PAGE>   4
 
      "RETRACTED SHARES" has the meaning ascribed thereto in section 5.7.
 
      "RETRACTION CALL RIGHT" has the meaning ascribed thereto in the Share
      Provisions.
 
      "SOURCE AFFILIATES" means Affiliates of Source.
 
      "SOURCE COMMON SHARE" means one share of Source Common Stock, U.S.$0.001
      par value.
 
      "SOURCE CONSENT" has the meaning ascribed thereto in section 4.2.
 
      "SOURCE MEETING" has the meaning ascribed thereto in section 4.2.
 
      "SOURCE SPECIAL VOTING SHARE" means the one share of Special Voting Stock
      of Source, which entitles the holder of record to a number of votes at
      meetings of holders of Source Common Shares equal to the number of
      Exchangeable Shares outstanding from time to time (other than Exchangeable
      Shares held by Source and its Affiliates), which share is to be issued to,
      deposited with, and voted by, the Trustee as described herein.
 
      "SOURCE SUCCESSOR" has the meaning ascribed thereto in section 11.1(a).
 
      "SUPPORT AGREEMENT" means that certain support agreement made as of even
      date hereto between Cableshare and Source.
 
      "TRUST" means the trust created by this agreement.
 
      "TRUST ESTATE" means the Source Special Voting Share, any other
      securities, the Exchange Right, the Automatic Exchange Rights and any
      money or other property which may be held by the Trustee from time to time
      pursuant to this trust agreement.
 
      "TRUSTEE" means    --   Trust Company and, subject to the provisions of
      Article 10, includes any successor trustee.
 
      "VOTING RIGHTS" means the voting rights attached to the Source Special
      Voting Share.
 
1.2   INTERPRETATION NOT AFFECTED BY HEADINGS, ETC. The division of this trust
agreement into articles, sections and paragraphs and the insertion of headings
are for convenience of reference only and shall not affect the construction or
interpretation of this trust agreement.
 
1.3   NUMBER, GENDER, ETC. Words importing the singular number only shall
include the plural and vice versa. Words importing the use of any gender shall
include all genders.
 
1.4   DATE FOR ANY ACTION. If any date on which any action is required to be
taken under this trust agreement is not a Business Day, such action shall be
required to be taken on the next succeeding Business Day.
 
                                   ARTICLE 2
 
                              PURPOSE OF AGREEMENT
 
2.1   ESTABLISHMENT OF TRUST. The purpose of this trust agreement is to create
the Trust for the benefit of the Beneficiaries, as herein provided. The Trustee
will hold the Source Special Voting Share in order to enable the Trustee to
exercise the Voting Rights and will hold the Exchange Right and the Automatic
Exchange Rights in order to enable the Trustee to exercise such rights, in each
case as trustee for and on behalf of the Beneficiaries as provided in this trust
agreement.
 
                                        4
<PAGE>   5
 
                                   ARTICLE 3
 
                          SOURCE SPECIAL VOTING SHARE
 
3.1    ISSUE AND OWNERSHIP OF THE SOURCE SPECIAL VOTING SHARE. Source hereby
issues to and deposits with the Trustee the Source Special Voting Share to be
hereafter held of record by the Trustee as trustee for and on behalf of, and for
the use and benefit of, the Beneficiaries and in accordance with the provisions
of this trust agreement. Source hereby acknowledges receipt from the Trustee as
trustee for and on behalf of the Beneficiaries of good and valuable
consideration (and the adequacy thereof) for the issuance of the Source Special
Voting Share by Source to the Trustee. During the term of the Trust and subject
to the terms and conditions of this trust agreement, the Trustee shall possess
and be vested with full legal ownership of the Source Special Voting Share and
shall be entitled to exercise all of the rights and powers of an owner with
respect to the Source Special Voting Share provided that the Trustee shall:
 
      (a) hold the Source Special Voting Share and the legal title thereto as
          trustee solely for the use and benefit of the Beneficiaries in
          accordance with the provisions of this trust agreement; and
 
      (b) except as specifically authorized by this trust agreement, have no
          power or authority to sell, transfer, vote or otherwise deal in or
          with the Source Special Voting Share and the Source Special Voting
          Share shall not be used or disposed of by the Trustee for any purpose
          other than the purposes for which this Trust is created pursuant to
          this trust agreement.
 
3.2    LEGENDED SHARE CERTIFICATES. Cableshare will cause each certificate
representing Exchangeable Shares to bear an appropriate legend notifying the
Beneficiaries of their right to instruct the Trustee with respect to the
exercise of the Voting Rights with respect to the Exchangeable Shares held by
the Beneficiary.
 
3.3    SAFE KEEPING OF CERTIFICATE. The certificate representing the Source
Special Voting Share shall at all times be held in safe keeping by the Trustee.
 
                                   ARTICLE 4
 
                           EXERCISE OF VOTING RIGHTS
 
4.1    VOTING RIGHTS. The Trustee, as the holder of record of the Source Special
Voting Share, shall be entitled to all of the Voting Rights, including the right
to consent to or to vote in person or by proxy the Source Special Voting Share
on any matter, question or proposition whatsoever that may properly come before
the shareholders of Source at a Source Meeting or in connection with a Source
Consent (in each case, as hereinafter defined). The Voting Rights shall be and
remain vested in and exercised by the Trustee. Subject to section 7.15 hereof,
the Trustee shall exercise the Voting Rights only:
 
      (a) on the basis of instructions received pursuant to this Article 4 from
          Beneficiaries entitled to instruct the Trustee as to the voting
          thereof at the time at which Source Consent is effective or Source
          Meeting is held; or
 
      (b) to the extent that no instructions are received from a Beneficiary
          with respect to the Voting Rights to which such Beneficiary is
          entitled, the Trustee shall not exercise or permit the exercise of
          such Voting Rights.
 
4.2    NUMBER OF VOTES. With respect to all meetings of shareholders of Source
at which holders of Source Common Shares are entitled to vote (a "Source
Meeting") and with respect to all written consents sought by Source from its
shareholders including the holders of Source Common Shares (a "Source Consent"),
each Beneficiary shall be entitled to instruct the Trustee to cast and exercise
one of the votes comprised in the Voting Rights for each Exchangeable Share
owned of record by such Beneficiary on the record date established by Source or
by applicable law for such Source Meeting or Source Consent, as the case may be
(the "Beneficiary Votes") in respect of each matter, question or proposition to
be voted on at such Source Meeting or to be consented to in connection with such
Source Consent.
 
                                        5
<PAGE>   6
 
4.3    MAILINGS TO SHAREHOLDERS. With respect to each Source Meeting and Source
Consent, the Trustee will mail or cause to be mailed (or otherwise communicate
in the same manner as Source utilizes in communications to holders of Source
Common Shares) to each of the Beneficiaries named in the List referred to in
section 4.6 on the same day as the initial mailing or notice (or other
communication) with respect thereto is given by Source to its shareholders:
 
      (a) a copy of such notice, together with any related materials to be
          provided to shareholders of Source;
 
      (b) a statement that such Beneficiary is entitled to instruct the Trustee
          as to the exercise of the Beneficiary Votes with respect to such
          Source Meeting or Source Consent, as the case may be, or, pursuant to
          section 4.7, to attend such Source Meeting and to exercise personally
          the Beneficiary Votes thereat;
 
      (c) a statement as to the manner in which such instructions may be given
          to the Trustee, including an express indication that instructions may
          be given to the Trustee to give:
 
          (i)   a proxy to such Beneficiary or his designee to exercise
                personally the Beneficiary Votes; or
 
          (ii)  a proxy to a designated agent or other representative of the
                management of Source to exercise such Beneficiary Votes;
 
      (d) a statement that if no such instructions are received from the
          Beneficiary, the Beneficiary Votes to which such Beneficiary is
          entitled will not be exercised;
 
      (e) a form of direction whereby the Beneficiary may so direct and
          instruct the Trustee as contemplated herein; and
 
      (f) a statement of the time and date by which such instructions must be
          received by the Trustee in order to be binding upon it, which in the
          case of a Source Meeting shall not be earlier than the close of
          business on the second Business Day prior to such meeting, and of the
          method for revoking or amending such instructions.
 
For the purpose of determining Beneficiary Votes to which a Beneficiary is
entitled in respect of any such Source Meeting or Source Consent, the number of
Exchangeable Shares owned of record by the Beneficiary shall be determined at
the close of business on the record date established by Source or by applicable
law for purposes of determining shareholders entitled to vote at such Source
Meeting or to give written consent in connection with such Source Consent.
Source will notify the Trustee of any decision of the Board of Directors of
Source with respect to the calling of any such Source Meeting or the seeking of
any such Source Consent and shall provide all necessary information and
materials to the Trustee in each case promptly and in any event in sufficient
time to enable the Trustee to perform its obligations contemplated by this
section 4.3.
 
4.4    COPIES OF SHAREHOLDER INFORMATION. Source will deliver to the Trustee
copies of all proxy materials (including notices of Source Meetings but
excluding proxies to vote Source Common Shares), information statements, reports
(including without limitation, all interim and annual financial statements) and
other written communications that are to be distributed from time to time to
holders of Source Common Shares in sufficient quantities and in sufficient time
so as to enable the Trustee to send those materials to each Beneficiary at the
same time as such materials are first sent to holders of Source Common Shares.
The Trustee will mail or otherwise send to each Beneficiary, at the expense of
Source, copies of all such materials (and all materials specifically directed to
the Beneficiaries or to the Trustee for the benefit of the Beneficiaries by
Source) received by the Trustee from Source at the same time as such materials
are first sent to holders of Source Common Shares. The Trustee will also make
available for inspection by any Beneficiary at the Trustee's principal corporate
trust office in the City of Toronto all proxy materials, information statements,
reports and other written communications that are:
 
      (a) received by the Trustee as the registered holder of the Source
          Special Voting Share and made available by Source to the holders of
          Source Common Shares; or
 
                                        6
<PAGE>   7
 
      (b) specifically directed to the Beneficiaries or to the Trustee for the
          benefit of the Beneficiaries by Source.
 
4.5    OTHER MATERIALS. Immediately after receipt by Source or any shareholder
of Source of any material sent or given to the holder of Source Common Shares by
or on behalf of a third party, including without limitation, dissident proxy and
information circulars (and related information and material) and tender and
exchange offer circulars (and related information and material), Source shall
use its best efforts to obtain and deliver to the Trustee copies thereof in
sufficient quantities so as to enable the Trustee to forward such material
(unless the same has been provided directly to Beneficiaries by such third
party) to each Beneficiary as soon as possible thereafter. Immediately upon
receipt thereof, the Trustee will mail or otherwise send to each Beneficiary, at
the expense of Source, copies of all such materials received by the Trustee from
Source. The Trustee will also make available for inspection by any Beneficiary
at the Trustee's principal corporate trust office in the City of Toronto copies
of all such materials.
 
4.6    LIST OF PERSONS ENTITLED TO VOTE. Cableshare shall, (a) prior to each
annual, general and special Source Meeting or the seeking of any Source Consent
and (b) forthwith upon each request made at any time by the Trustee in writing,
prepare or cause to be prepared a list (a "List") of the names and addresses of
the Beneficiaries arranged in alphabetical order and showing the number of
Exchangeable Shares held of record by each such Beneficiary, in each case at the
close of business on the date specified by the Trustee in such request or, in
the case of a List prepared in connection with a Source Meeting or a Source
Consent, at the close of business on the date specified by the Trustee in such
request or, in the case of a List prepared in connection with a Source Meeting
or a Source Consent, at the close of business on the record date established by
Source or pursuant to applicable law for determining the holders of Source
Common Shares entitled to receive notice of and/or to vote at such Source
Meeting or to give consent in connection with such Source Consent. Each such
List shall be delivered to the Trustee promptly after receipt by Cableshare of
such request or the record date for such meeting or seeking of consent, as the
case may be. Source agrees to give Cableshare notice (with a copy to the
Trustee) of the calling of any Source Meeting or the seeking of any Source
Consent, together with the record dates therefor, sufficiently prior to the date
of the calling of such meeting or seeking of such consent so as to enable
Cableshare to perform its obligations under this section 4.6.
 
4.7    ENTITLEMENT TO DIRECT VOTES. Any Beneficiary named in a List prepared in
connection with any Source Meeting or any Source Consent will be entitled (a) to
instruct the Trustee in the manner described in section 4.3 with respect to the
exercise of the Beneficiary Votes to which such Beneficiary is entitled or (b)
to attend such meeting and personally to exercise thereat (or to exercise with
respect to any written consent), as the proxy of the Trustee, the Beneficiary
Votes to which such Beneficiary is entitled except, in each case, to the extent
that such Beneficiary has transferred the ownership of any Exchangeable Shares
in respect of which such Beneficiary is entitled to Beneficiary Votes after the
close of business on the record date for such meeting or seeking of consent.
 
4.8    VOTING BY TRUSTEE, AND ATTENDANCE OF TRUSTEE REPRESENTATIVE AT MEETING.
 
      (a) In connection with each Source Meeting and Source Consent, the
          Trustee shall exercise, either in person or by proxy, in accordance
          with the instructions received from a Beneficiary pursuant to section
          4.3, the Beneficiary Votes as to which such Beneficiary is entitled to
          direct the vote (or any lesser number thereof as may be set forth in
          the instructions); provided, however, that such written instructions
          are received by the Trustee from the Beneficiary prior to the time and
          date fixed by it for receipt of such instructions in the notice given
          by the Trustee to the Beneficiary pursuant to section 4.3.
 
      (b) The Trustee shall cause a representative who is empowered by it to
          sign and deliver, on behalf of the Trustee, proxies for Voting Rights
          to attend each Source Meeting. upon submission by a Beneficiary (or
          its designee) of identification satisfactory to the Trustee's
          representative, and at the Beneficiary's request, such representative
          shall sign and deliver to such Beneficiary (or its designee) a proxy
          to exercise personally the Beneficiary Votes as to which such
          Beneficiary is otherwise entitled hereunder to direct the vote, if
          such Beneficiary either (i) has not previously given the Trustee
          instructions pursuant to section 4.3 in respect of such meeting, or
          (ii) submits
 
                                        7
<PAGE>   8
 
          to such representative written revocation of any such previous
          instructions. At such meeting, the Beneficiary exercising such
          Beneficiary Votes shall have the same rights as the Trustee to speak
          at the meeting in favour of any matter, question or proposition, to
          vote by way of ballot at the meeting in respect of any matter,
          question or proposition, to vote by way of ballot at the meeting in
          respect of any matter, question or proposition and to vote at such
          meeting by way of a show of hands in respect of any matter, question
          or proposition.
 
4.9    DISTRIBUTION OF WRITTEN MATERIALS. Any written materials distributed by
the Trustee pursuant to this trust agreement shall be delivered in person or
sent by mail (or otherwise communicated in the same manner as Source utilizes in
communications to holders of Source Common Shares) to each Beneficiary at its
address as shown on the books of Cableshare. Cableshare shall provide or cause
to be provided to the Trustee for this purpose, on a timely basis and without
charge or other expense:
 
      (a) current lists of the registered holders of Exchangeable Shares; and
 
      (b) upon the request of the Trustee, mailing labels to enable the Trustee
          to carry out its duties under this trust agreement.
 
4.10   TERMINATION OF VOTING RIGHTS. All of the rights of a Beneficiary with
respect to the Beneficiary Votes exercisable in respect of the Exchangeable
Shares held by such Beneficiary, including the right to instruct the Trustee as
to the voting of or to vote personally such Beneficiary Votes, shall be deemed
to be surrendered by the Beneficiary to Source and such Beneficiary Votes and
the Voting Rights represented thereby shall cease immediately upon the delivery
by such holder to the Trustee of the certificates representing such Exchangeable
Shares in connection with the exercise by the Beneficiary of the Exchange Right
or the occurrence of the automatic exchange of Exchangeable Shares for Source
Common Shares, as specified in Article 5 hereof (unless in either case Source
shall not have delivered the requisite Source Common Shares issuable in exchange
therefor to the Trustee for delivery to the Beneficiaries), or upon the
redemption of Exchangeable Shares pursuant to Article 6 or 7 of the Share
Provisions, or upon the effective date of the liquidation, dissolution or
winding-up of Cableshare pursuant to Article 5 of the Share Provisions, or upon
the purchase of Exchangeable Shares from the holder thereof by Source pursuant
to the exercise by Source of the Retraction Call Right, the Redemption Call
Right or the Liquidation Call Right.
 
                                   ARTICLE 5
 
                     EXCHANGE RIGHT AND AUTOMATIC EXCHANGE
 
5.1    GRANT AND OWNERSHIP OF THE EXCHANGE RIGHT. Source hereby grants to the
Trustee as trustee for and on behalf of, and for the use and benefit of, the
Beneficiaries the right (the "Exchange Right"), upon the occurrence and during
the continuance of an Insolvency Event, to require Source to purchase from each
or any Beneficiary all or any part of the Exchangeable Shares held by the
Beneficiary and the Automatic Exchange Rights, all in accordance with the
provisions of this agreement. Source hereby acknowledges receipt from Trustee as
trustee for and on behalf of the Beneficiaries of good and valuable
consideration (and the adequacy thereof) for the grant of the Exchange Right and
the Automatic Exchange Rights by Source to the Trustee. During the term of the
Trust and subject to the terms and conditions of this trust agreement, the
Trustee shall possess and be vested with full legal ownership of the Exchange
Right and the Automatic Exchange Rights and shall be entitled to exercise all of
the rights and powers of an owner with respect to the Exchange Right and the
Automatic Exchange Rights, provided that the Trustee shall:
 
      (a) hold the Exchange Right and the Automatic Exchange Rights and the
          legal title thereto as trustee solely for the use and benefit of the
          Beneficiaries in accordance with the provisions of this trust
          agreement; and
 
      (b) except as specifically authorized by this trust agreement, have no
          power or authority to exercise or otherwise deal in or with the
          Exchange Right or the Automatic Exchange Rights, and the Trustee shall
          not exercise any such rights for any purpose other than the purposes
          for which this Trust is created pursuant to this trust agreement.
 
                                        8
<PAGE>   9
 
5.2    LEGENDED SHARE CERTIFICATES. Cableshare will cause each certificate
representing Exchangeable Shares to bear an appropriate legend notifying the
Beneficiaries of:
 
      (a) their right to instruct the Trustee with respect to the exercise of
          the Exchange Right in respect of the Exchangeable Shares held by a
          Beneficiary; and
 
      (b) the Automatic Exchange Rights.
 
5.3    GENERAL EXERCISE OF EXCHANGE RIGHT. The Exchange Right shall be and
remain vested in and exercised by the Trustee. Subject to section 7.15, the
Trustee shall exercise the Exchange Right only on the basis of instructions
received pursuant to this Article 5 from Beneficiaries entitled to instruct the
Trustee as to the exercise thereof. To the extent that no instructions are
received from a Beneficiary with respect to the Exchange Right, the Trustee
shall not exercise or permit the exercise of the Exchange Right.
 
5.4    PURCHASE PRICE. The purchase price payable by Source for each
Exchangeable Share to be purchased by Source under the Exchange Right shall be
an amount per share equal to (a) the Current Market Price of a Source Common
Share on the last Business Day prior to the day of closing of the purchase and
sale of such Exchangeable Share under the Exchange Right plus (b) an additional
amount equivalent to the full amount of all dividends declared and unpaid on
each such Exchangeable Share (provided that if the record date for any such
declared and unpaid dividends occurs on or after the day of closing of such
purchase and sale the purchase price shall not include such additional amount
equivalent to the declared and unpaid dividends). The purchase price for each
such Exchangeable Share so purchased may be satisfied only by Source issuing and
delivering or causing to be delivered to the Trustee, on behalf of the relevant
Beneficiary, one Source Common Share and a cheque for the balance, if any, of
the purchase price without interest (but less any amounts withheld pursuant to
section 5.13 hereof).
 
5.5    EXERCISE INSTRUCTIONS. Subject to the terms and conditions herein set
forth, a Beneficiary shall be entitled, upon the occurrence and during the
continuance of an Insolvency Event, to instruct the Trustee to exercise the
Exchange Right with respect to all or any part of the Exchangeable Shares
registered in the name of such Beneficiary on the books of Cableshare. To cause
the exercise of the Exchange Right by the Trustee, the Beneficiary shall deliver
to the Trustee, in person or by certified or registered mail, at its principal
corporate trust office in Toronto, Ontario or at such other places in Canada as
the Trustee may from time to time designate by written notice to the
Beneficiaries, the certificates representing the Exchangeable Shares which such
Beneficiary desires Source to purchase, duly endorsed in blank, and accompanied
by such other documents and instruments as may be required to effect a transfer
of Exchangeable Shares under the Business Corporations Act (Ontario) and the
by-laws of Cableshare and such additional documents and instruments as the
Trustee may reasonably require together with (a) a duly completed form of notice
of exercise of the Exchange Right, contained on the reverse of or attached to
the Exchangeable Share certificates, stating (i) that the Beneficiary thereby
instructs the Trustee to exercise the Exchange Right so as to require Source to
purchase from the Beneficiary the number of Exchangeable Shares specified
therein, (ii) that such Beneficiary has good title to and owns all such
Exchangeable Shares to be acquired by Source free and clear of all liens, claims
and encumbrances, (iii) the names in which the certificates representing Source
Common Shares issuable in connection with the exercise of the Exchange Right are
to be issued and (iv) the names and addresses of the persons to whom such new
certificates should be delivered and (b) payment (or evidence satisfactory to
the Trustee, Cableshare and Source of payment) of the taxes (if any) payable as
contemplated by section 5.8 of this trust agreement. If only a part of the
Exchangeable Shares represented by any certificate or certificates delivered to
the Trustee are to be purchased by Source under the Exchange Right, a new
certificate for the balance of such Exchangeable Shares shall be issued to the
holder at the expense of Cableshare.
 
5.6    DELIVERY OF SOURCE COMMON SHARES: EFFECT OF EXERCISE. Promptly after
receipt of the certificates representing the Exchangeable Shares which the
Beneficiary desires Source to purchase under the Exchange Right together with
such documents and instruments of transfer and a duly completed form of notice
of exercise of the Exchange Right (and payment of taxes, if any, or evidence
thereof), duly endorsed for the transfer to Source, the Trustee shall notify
Source and Cableshare of its receipt of the same, which notice to Source and
Cableshare shall constitute exercise of the Exchange Right by the Trustee on
behalf of the holder
 
                                        9
<PAGE>   10
 
of such Exchangeable Shares, and Source shall immediately thereafter deliver or
cause to be delivered to the Trustee, for delivery to the Beneficiary of such
Exchangeable Shares (or to such other persons, if any, properly designated by
such Beneficiary) the number of Source Common Shares issuable in connection with
the exercise of the Exchange Right, and cheques for the balance, if any, of the
total purchase price therefor without interest (but less any amounts withheld
pursuant to section 5.13 hereof); provided, however, that no such delivery shall
be made unless and until the Beneficiary requesting the same shall have paid (or
provided evidence satisfactory to the Trustee, Cableshare and Source of the
payment of) the taxes (if any) payable as contemplated by section 5.8 of this
trust agreement. Immediately upon the giving of notice by the Trustee to Source
and Cableshare of the exercise of the Exchange Right, as provided in this
section 5.6, the closing of the transaction of purchase and sale contemplated by
the Exchange Right shall be deemed to have transferred to Source all of its
right, title and interest in and to such Exchangeable Shares and in the related
interest in the Trust Estate and shall cease to be a holder of such Exchangeable
Shares and shall not be entitled to exercise any of the rights of a holder in
respect thereof, other than the right to receive his proportionate part of the
total purchase price therefor, unless the requisite number of Source Common
Shares (together with a cheque for the balance, if any, of the total purchase
price therefor without interest (but less any amount withheld pursuant to
section 5.13 hereof) is not allotted, issued and delivered by Source to the
Trustee, for delivery to such Beneficiary (or to such other persons, if any,
properly designated by such Beneficiary), within five Business Days of the date
of the giving of such notice by the Trustee, in which case the rights of the
Beneficiary shall remain unaffected until such Source Common Shares are so
allotted, issued and delivered by Source and any such cheque is so delivered and
paid. Concurrently with such Beneficiary ceasing to be a holder of Exchangeable
Shares, the Beneficiary shall be considered and deemed for all purposes to be
the holder of Source Common Shares delivered to it pursuant to the Exchange
Right.
 
5.7    EXERCISE OF EXCHANGE RIGHT SUBSEQUENT TO RETRACTION. In the event that a
Beneficiary has exercised its right under Article 6 of the Share Provisions to
require Cableshare to redeem any or all of the Exchangeable Shares held by the
Beneficiary (the "Retracted Shares") and is notified by Cableshare pursuant to
Section 6.6 of the Share Provisions that Cableshare will not be permitted as a
result of solvency requirements of applicable law to redeem all such Retracted
Shares, and provided that Source shall not have exercised the Retraction Call
Right with respect to the Retracted Shares and that the Beneficiary has not
revoked the retraction request delivered by the Beneficiary to Cableshare
pursuant to Section 6.1 of the Share Provision, the retraction request will
constitute and will be deemed to constitute notice from the Beneficiary to the
Trustee instructing the Trustee to exercise the Exchange Right with respect to
those Retracted Shares which Cableshare is unable to redeem. In any such event,
Cableshare hereby agrees with the Trustee and in favour of the Beneficiary
immediately to notify the Trustee of such prohibition against Cableshare
redeeming all of the Retracted Shares and immediately to forward or cause to be
forwarded to the Trustee all relevant materials delivered by the Beneficiary to
Cableshare or to the transfer agent of the Exchangeable Shares (including
without limitation, a copy of the retraction request delivered pursuant to
Section 6.1 of the Share Provisions) in connection with such proposed redemption
of the Retracted Shares and the Trustee will thereupon exercise the Exchange
Right with respect to the Retracted Shares that Cableshare is not permitted to
redeem and will require Source to purchase such shares in accordance with the
provisions of this Article 5.
 
5.8    STAMP OR OTHER TRANSFER TAXES. Upon any sale of Exchangeable Shares to
Source pursuant to the Exchange Right or the Automatic Exchange Rights, the
share certificate or certificates representing Source Common Shares to be
delivered in connection with the payment of the total purchase price therefor
shall be issued in the name of the Beneficiary of the Exchangeable Shares so
sold or in such names as such Beneficiary may otherwise direct in writing
without charge to the holder of the Exchangeable Shares so sold; provided,
however, that such Beneficiary (a) shall pay (and neither Source, Cableshare nor
the Trustee shall be required to pay) any documentary, stamp, transfer or other
taxes that may be payable in respect of any transfer involved in the issuance or
delivery of such shares to a person other than such Beneficiary or (b) shall
have evidenced to the satisfaction of the Trustee, Source and Cableshare that
such taxes, if any, have been paid.
 
5.9    NOTICE OF INSOLVENCY EVENT. Immediately upon the occurrence of an
Insolvency Event or any event which with the giving of notice or the passage of
time or both would be an Insolvency Event, Cableshare and
 
                                       10
<PAGE>   11
 
Source shall give written notice thereof to the Trustee. Immediately upon
receiving notice from Cableshare and Source of the occurrence of an Insolvency
Event, or upon the Trustee becoming aware of an Insolvency Event, the Trustee
will mail promptly to each Beneficiary, at the expense of Source, a notice of
such Insolvency Event, which notice shall contain a brief statement of the right
of the Beneficiaries with respect to the Exchange Right.
 
5.10   QUALIFICATION OF SOURCE COMMON SHARES. Source covenants that if any
Source Common Shares to be issued and delivered pursuant to the Exchange Right
or the Automatic Exchange Rights require registration or qualification with or
approval of or the filing of any document, including any prospectus or similar
document or the taking of any proceeding with or the obtaining of any order,
ruling or consent from any governmental or regulatory authority under any
Canadian or United States federal, provincial or state law or regulation or
pursuant to the rules and regulations of any regulatory authority or the
fulfilment of any other legal requirement before such shares may be issued and
delivered by Source to the initial holder thereof or in order that such shares
may be freely traded thereafter (other than any restrictions on transfer by
reason of a holder being a "control person" of Source for purposes of Canadian
federal or provincial securities law or an "affiliate" of Source for purposes of
United States federal or state securities law), Source will in good faith
expeditiously take all such actions and do all such things as are necessary or
desirable to cause such Source Common Shares to be and remain duly registered,
qualified or approved. Source will in good faith expeditiously take all such
actions and do all such things as are necessary or desirable to cause all Source
Common Shares to be delivered pursuant to the Exchange Right or the Automatic
Exchange Rights to be listed, quoted or posted for trading on all stock
exchanges and quotation systems on which outstanding Source Common Shares are
listed, quoted or posted for trading at such time.
 
5.11   SOURCE COMMON SHARES. Source hereby represents, warrants and covenants
that the Source Common Shares issuable as described herein will be duly issued
as fully paid and non-assessable and shall be free and clear of any lien, claim
or encumbrance.
 
5.12   AUTOMATIC EXCHANGE ON LIQUIDATION OF SOURCE.
 
      (a) Source will give the Trustee notice of each of the following events
          at the time set forth below:
 
          (i)   in the event of any determination by the Board of Directors of
                Source to institute voluntary liquidation, dissolution or
                winding-up proceedings with respect to Source or to effect any
                other distribution of assets of Source among its shareholders 
                for the purpose of winding up its affairs, at least 60 days 
                prior to the proposed effective date of such liquidation, 
                dissolution, winding-up or other distribution; and
 
          (ii)  immediately, upon the earlier of (A) receipt by Source of notice
                of and (B) Source otherwise becoming aware of any threatened or
                instituted claim, suit, petition or other proceedings with
                respect to the involuntary liquidation, dissolution or winding-
                up of Source or to effect any other distribution or winding-up
                of Source or to effect any other distribution of assets of 
                Source among its shareholders for the purpose of winding up 
                its affairs.
 
      (b) Immediately following receipt by the Trustee from Source of notice of
          any event (a "Liquidation Event") contemplated by section 5.12(a)(i)
          or 5.12(a)(ii) above, the Trustee will give notice thereof to the
          Beneficiaries. Such notice shall include a brief description of the
          automatic exchange of Exchangeable Shares for Source Common Shares
          provided for in section 5.12(c).
 
      (c) In order that the Beneficiaries will be able to participate on a pro
          rata basis with the holders of Source Common Shares in the
          distribution of assets of Source in connection with a Liquidation
          Event, on the fifth Business Day prior to the effective date (the
          "Liquidation Event Effective Date") of a Liquidation Event all of the
          then outstanding Exchangeable Shares shall be automatically exchanged
          for Source Common Shares. To effect such automatic exchange, Source
          shall purchase each Exchangeable Share outstanding on the Liquidation
          Event Effective Date and held by Beneficiaries, and each Beneficiary
          shall sell the Exchangeable Shares held by
 
                                       11
<PAGE>   12
 
          it at such time, for a purchase price per share equal to (a) the
          Current Market Price of a Source Common Share on the last Business Day
          prior to the Liquidation Event Effective Date, which shall be
          satisfied in full by Source issuing to the Beneficiary one Source
          Common Share, and (b) an additional amount equivalent to the full
          amount of all dividends declared and unpaid thereon.
 
      (d) On the fifth Business Day prior to the Liquidation Event Effective
          Date, the closing of the transaction of purchase and sale contemplated
          by the automatic exchange of Exchangeable Shares for Source Common
          Shares shall be deemed to have occurred, and each Beneficiary of
          Exchangeable Shares shall be deemed to have transferred to Source all
          of the Beneficiary's right, title and interest in and to such
          Exchangeable Shares and the related interest in the Trust Estate and
          shall cease to be a holder of such Exchangeable Shares and Source
          shall issue to the Beneficiary the Source Common Shares issuable upon
          the automatic exchange of Exchangeable Shares for Source Common Shares
          and shall deliver to the Trustee for delivery to the Beneficiary a
          cheque for the balance, if any, of the total purchase price for such
          Exchangeable Shares without interest but less any amounts withheld
          pursuant to section 5.13 hereof. Concurrently with such Beneficiary
          ceasing to be a holder of Exchangeable Shares, the Beneficiary shall
          be considered and deemed for all purposes to be the holder of the
          Source Common Shares issued to it pursuant to the automatic exchange
          of Exchangeable Shares for Source Common Shares and the certificates
          held by the Beneficiary previously representing the Exchangeable
          Shares exchanged by the Beneficiary with Source pursuant to such
          automatic exchange shall thereafter be deemed to represent Source
          Common Shares issued to the Beneficiary by Source pursuant to such
          automatic exchange. Upon the request of a Beneficiary and the
          surrender by the Beneficiary of Exchangeable Share certificates deemed
          to represent Source Common Shares, duly endorsed in blank and
          accompanied by such instruments of transfer as Source may reasonably
          require, Source shall deliver or cause to be delivered to the
          Beneficiary certificates representing Source Common Shares of which
          the Beneficiary is the holder.
 
5.13   WITHHOLDING RIGHTS. Source and the Trustee shall be entitled to deduct
and withhold from any consideration otherwise payable under this trust agreement
to any holder of Exchangeable Shares such amounts as Source or the Trustee is
required or permitted to deduct and withhold with respect to such payment under
the Income Tax Act (Canada), the United States Internal Revenue Code of 1986 or
any provision of provincial, state, local or foreign tax law, in each case as
amended. To the extent that amounts are so withheld, such withheld amounts shall
be treated for all purposes hereof as having been paid to the holder of the
shares in respect of which such deduction and withholding was made, provided
that such withheld amounts are actually remitted to the appropriate taxing
authority. To the extent that the amount so required or permitted to be deducted
or withheld from any payment to a holder exceeds the cash portion of the
consideration otherwise payable to the holder, Source and the Trustee are hereby
authorized to sell or otherwise dispose of such portion of the consideration as
is necessary to provide sufficient funds to Source or the Trustee, as the case
may be, to enable it to comply with such deduction or withholding requirement
and Source or the Trustee shall notify the holder thereof and remit any
unapplied balance of the net proceeds of such sale.
 
                                   ARTICLE 6
 
              RESTRICTIONS ON ISSUE OF SOURCE SPECIAL VOTING STOCK
 
6.1    ISSUE OF ADDITIONAL SHARES. During the term of this trust agreement,
Source will not without the consent of the holders at the relevant time of
Exchangeable Shares, given in accordance with the share provisions attaching to
such shares, issue any shares of its Special Voting Stock in addition to the
Source Special Voting Share.
 
                                       12
<PAGE>   13
 
                                   ARTICLE 7
 
                             CONCERNING THE TRUSTEE
 
7.1    POWERS AND DUTIES OF THE TRUSTEE. The rights, powers, duties and
authorities of the Trustee under this trust agreement, in its capacity as
trustee of the Trust, shall include:
 
      (a) receipt and deposit of the Source Special Voting Share from Source as
          trustee for and on behalf of the Beneficiaries in accordance with the
          provisions of this agreement;
 
      (b) granting proxies and distributing materials to Beneficiaries as
          provided in this trust agreement;
 
      (c) voting the Beneficiary Votes in accordance with the provisions of
          this trust agreement;
 
      (d) receiving the grant of the Exchange Right and the Automatic Exchange
          Rights from Source as trustee for and on behalf of the Beneficiaries
          in accordance with the provisions of this trust agreement;
 
      (e) exercising the Exchange Right and enforcing the benefit of the
          Automatic Exchange Rights, in each case in accordance with the
          provisions of this trust agreement, and in connection therewith
          receiving from Beneficiaries Exchangeable Shares and other requisite
          documents and distribution to such Beneficiaries of Source Common
          Shares and cheques, if any, to which such Beneficiaries are entitled
          upon the exercise of the Exchange Right or pursuant to the Automatic
          Exchange Rights, as the case may be;
 
      (f) holding title to the Trust Estate;
 
      (g) investing any moneys forming, from time to time, a part of the Trust
          Estate as provided in this trust agreement;
 
      (h) taking action on its own initiative or at the direction of a
          Beneficiary or Beneficiaries to enforce the obligations of Source
          under this trust agreement; and
 
      (i) taking such other actions and doing such other things as are
          specifically provided in this trust agreement.
 
      In the exercise of such rights, powers, duties and authorities the Trustee
shall have (and is granted) such incidental and additional rights, powers,
duties and authority not in conflict with any of the provisions of this trust
agreement as the Trustee, acting in good faith and in the reasonable exercise of
its discretion, may deem necessary, appropriate or desirable to effect the
purpose of the Trust. Any exercise of such discretionary rights, powers, duties
and authorities by the Trustee shall be final, conclusive and binding upon all
persons.
 
      The Trustee in exercising its rights, powers, duties and authorities
hereunder shall act honestly and in good faith and with a view to the best
interests of the Beneficiaries and shall exercise care, diligence and skill that
a reasonably prudent trustee would exercise in comparable circumstances.
 
7.2    NO CONFLICT OF INTEREST. The Trustee represents to Cableshare and Source
that at the date of execution and delivery of this trust agreement there exists
no material conflict of interest in the role of the Trustee as a fiduciary
hereunder and the role of the Trustee in any other capacity. The Trustee shall,
within 90 days after it becomes aware that such a material conflict of interest
exists, either eliminate such material conflict of interest or resign in the
manner and with the effect specified in Article 10. If, notwithstanding the
foregoing provisions of this section 7.2, the Trustee has such a material
conflict of interest, the validity and enforceability of this trust agreement
shall not be affected in any manner whatsoever by reason only of the existence
of such material conflict of interest. If the Trustee contravenes the foregoing
provisions of this section 7.2, any interested party may apply to the Ontario
Court of Justice for an order that the Trustee be replaced as trustee hereunder.
 
7.3    DEALINGS WITH TRANSFER AGENTS, REGISTRARS, ETC. Cableshare and Source
irrevocably authorize the Trustee, from time to time, to:
 
                                       13
<PAGE>   14
 
      (a) consult, communicate and otherwise deal with the respective
          registrars and transfer agents, and with any such subsequent registrar
          or transfer agent, of the Exchangeable Shares and Source Common
          Shares; and
 
      (b) requisition, from time to time, (i) from any such registrar or
          transfer agent any information readily available from the records
          maintained by it which the Trustee may reasonably require for the
          discharge of its duties and responsibilities under this trust
          agreement and (ii) from the transfer agent of Source Common Shares,
          and any subsequent transfer agent of such shares, the share
          certificates issuable upon the exercise from time to time of the
          Exchange Right and pursuant to the automatic exchange of Exchangeable
          Shares for Source Common Shares in the manner specified in Article 5
          hereof.
 
Cableshare and Source irrevocably authorize their respective registrars and
transfer agents to comply with all such requests. Source covenants that it will
supply its transfer agent with duly executed share certificates for the purpose
of completing the exercise from time to time of the Exchange Right and the
automatic exchange of Exchangeable Shares for Source Common Shares, in each case
pursuant to Article 5 hereof.
 
7.4    BOOKS AND RECORDS. The Trustee shall keep available for inspection by
Source and Cableshare, at the Trustee's principal corporate trust office in
Toronto, Ontario, correct and complete books and records of account relating to
the Trust created by this trust agreement, including without limitation, all
data relating to mailings and instructions to and from Beneficiaries and all
transactions pursuant to the Exchange Right and the Automatic Exchange Rights.
On or before March 31, 1997, and on or before March 31 in every year thereafter,
so long as the Source Special Voting Share is on deposit with the Trustee, the
Trustee shall transmit to Source and Cableshare a brief report, dated as of the
preceding December 31, with respect to:
 
      (a) the property and funds comprising the Trust Estate as of that date;
 
      (b) the number of exercises of the Exchange Right, if any, and the
          aggregate number of Exchangeable Shares received by the Trustee on
          behalf of Beneficiaries in consideration of the issuance by Source of
          Source Common Shares in connection with the Exchange Right, during the
          calendar year ended on such date; and
 
      (c) any action taken by the Trustee in the performance of its duties
          under this trust agreement which it had not previously reported and
          which, in the Trustee's opinion, materially affects the Trust Estate.
 
7.5    INCOME TAX RETURNS AND REPORTS. The Trustee shall, to the extent
necessary, prepare and file on behalf of the Trust appropriate United States and
Canadian income tax returns and any other returns or reports as may be required
by applicable law or pursuant to the rules and regulations of any securities
exchange or other trading system through which the Exchangeable Shares are
traded.
 
7.6    INDEMNIFICATION PRIOR TO CERTAIN ACTIONS BY TRUSTEE. The Trustee shall
exercise any or all of the rights, duties, powers or authorities vested in it by
this trust agreement at the request, order or direction of any Beneficiary upon
such Beneficiary furnishing to the Trustee reasonable security or indemnity
against the costs, expenses and liabilities which may be incurred by the Trustee
therein or thereby, provided that no Beneficiary shall be obligated to furnish
to the Trustee any such security or indemnity in connection with the exercise by
the Trustee of any of its rights, duties, powers and authorities with respect to
the Source Special Voting Share pursuant to Article 4 hereof, subject to section
7.15, and with respect to the Exchange Right pursuant to Article 5 hereof,
subject to section 7.15, and with respect to the Automatic Exchange Rights
pursuant to Article 5 hereof.
 
     None of the provisions contained in this trust agreement shall require the
Trustee to expend or risk its own funds or otherwise incur financial liability
in the exercise of any of its rights, powers, duties, or authorities unless
funded, given security and indemnified as aforesaid.
 
7.7    ACTION OF BENEFICIARIES. No Beneficiary shall have the right to institute
any action, suit or proceeding or to exercise any other remedy authorized by
this trust agreement for the purpose of enforcing any of its rights or for the
execution of any trust or power hereunder unless the Beneficiary has requested
the Trustee to take or
 
                                       14
<PAGE>   15
 
institute such action, suit or proceeding and furnished and Trustee with the
security or indemnity referred to in section 7.6 and the Trustee shall have
failed to act within a reasonable time thereafter. In such case, but not
otherwise, the Beneficiary shall be entitled to take proceedings in any court of
competent jurisdiction such as the Trustee might have taken; it being understood
and intended that no one or more Beneficiaries shall have any right in any
manner whatsoever to affect, disturb or prejudice the rights hereby created by
any such action, or to enforce any right hereunder or under the Voting Rights,
the Exchange Rights or the Automatic Exchange Rights except subject to the
conditions and in the manner herein provided, and that all powers and trusts
hereunder shall be exercised and all proceedings at law shall be instituted, had
and maintained by the Trustee, except only as herein provided, and in any event
for the equal benefit of all Beneficiaries.
 
7.8    RELIANCE UPON DECLARATIONS. The Trustee shall not be considered to be in
contravention of any of its rights, powers, duties and authorities hereunder if,
when required, it acts and relies in good faith upon statutory declarations,
certificates, opinions or reports furnished pursuant to the provisions hereof or
required by the Trustee to be furnished to it in the exercise of its rights,
power, duties and authorities hereunder if such statutory declarations,
certificates, opinions or reports comply with the provisions of section 7.9
hereof, if applicable, and with any other applicable provisions of this trust
agreement.
 
7.9    EVIDENCE AND AUTHORITY TO TRUSTEE. Cableshare and/or Source shall furnish
to the Trustee evidence of compliance with the conditions provided for in this
trust agreement relating to any action or step required or permitted to be taken
by Cableshare and/or Source or the Trustee under this trust agreement or as a
result of any obligation imposed under this trust agreement, including, without
limitation, in respect of the Voting Rights or the Exchange Right or the
Automatic Exchange Rights and the taking of any other action to be taken by the
Trustee as the request of or on the application of Cableshare and/or Source
forthwith if and when:
 
      (a) such evidence is required by any other section of this trust
          agreement to be furnished to the Trustee in accordance with the terms
          of this section 7.9; or
 
      (b) the Trustee, in the exercise of its rights, powers, duties and
          authorities under this trust agreement, gives Cableshare and/or Source
          written notice requiring it to furnish such evidence in relation to
          any particular action or obligation specified in such notice.
 
      Such evidence shall consist of an Officer's Certificate of Cableshare
and/or Source or a statutory declaration or a certificate made by persons
entitled to sign an Officer's Certificate stating that any such condition has
been complied with in accordance with the terms of this trust agreement.
 
      Whenever such evidence relates to a matter other than the Voting Rights or
the Exchange Right or the Automatic Exchange Rights or the taking of any other
action to be taken by the Trustee at the request or on the application of
Cableshare and/or Source, and except as otherwise specifically provided herein,
such evidence may consist of a report or opinion of any solicitor, auditor,
accountant, appraiser, valuer, engineer or other expert or any other person
whose qualifications give authority to a statement made by him, provided that if
such report or opinion is furnished by a director, officer or employee of
Cableshare and/or Source it shall be in the form of an Officer's Certificate or
a statutory declaration.
 
      Each statutory declaration, certificate, opinion or report furnished to
the Trustee as evidence of compliance with a condition provided for in this
trust agreement shall include a statement by the person giving the evidence:
 
      (a) declaring that he has read and understands the provisions of this
          trust agreement relating to the condition in question;
 
      (b) describing the nature and scope of the examination or investigation
          upon which he based the statutory declaration, certificate, statement
          or opinion; and
 
      (c) declaring that he has made such examination or investigation as he
          believes is necessary to enable him to make the statements or give the
          opinions contained or expressed herein.
 
                                       15
<PAGE>   16
 
7.10   EXPERTS, ADVISERS AND AGENTS. The Trustee may:
 
      (a) in relation to these presents act and rely on the opinion or advice
          of or information obtained from any solicitor, auditor, accountant,
          appraiser, valuer, engineer or other expert, whether retained by the
          Trustee or by Cableshare and/or Source or otherwise, and may employ
          such assistants as may be necessary to the proper discharge of its
          powers and duties and determination of its rights hereunder and may
          pay proper and reasonable compensation for all such legal and other
          advice or assistance as aforesaid; and
 
      (b) employ such agents and other assistants as it may reasonably require
          for the proper discharge of its powers and duties hereunder, and may
          pay reasonable remuneration for all services performed for it (and
          shall be entitled to receive reasonable remuneration for all services
          performed by it) in the discharge of the trusts hereof and
          compensation for all disbursements, costs and expenses made or
          incurred by it in the discharge of its duties hereunder and in the
          management of the Trust.
 
7.11   INVESTMENT OF MONEYS HELD BY TRUSTEE. Unless otherwise provided in this
trust agreement, any moneys held by or on behalf of the Trustee which under the
terms of this trust agreement may or ought to be invested or which may be on
deposit with the Trustee or which may be in the hands of the Trustee may be
invested and reinvested in the name or under the control of the Trustee in
securities in which, under the laws of the Province of Ontario, trustees are
authorized to invest trust moneys, provided that such securities are stated to
mature within two years after their purchase by the Trustee, and the Trustee
shall so invest such moneys on the written direction of Cableshare. Pending the
investment of any moneys as hereinbefore provided, such moneys may be deposited
in the name of the Trustee in any chartered bank of Canada or, with the consent
of Cableshare, in the deposit department of the Trustee or any other loan or
trust company authorized to accept deposits under the laws of Canada or any
provide thereof at the rate of interest then current on similar deposits.
 
7.12   TRUSTEE NOT REQUIRED TO GIVE SECURITY. The Trustee shall not be required
to give any bond or security in respect of the execution of the trusts, rights,
duties, powers and authorities of this trust agreement or otherwise in respect
of the premises.
 
7.13   TRUSTEE NOT BOUND TO ACT ON CABLESHARE'S REQUEST. Except as in this trust
agreement otherwise specifically provided, the Trustee shall not be bound to act
in accordance with any direction or request of Cableshare and/or Source or of
the directors thereof until a duly authenticated copy of the instrument or
resolution containing such direction or request shall have been delivered to the
Trustee, and the Trustee shall be empowered to act upon any such copy purporting
to be authenticated and believed by the Trustee to be genuine.
 
7.14   AUTHORITY TO CARRY ON BUSINESS. The Trustee represents to Cableshare and
Source that at the date of execution and delivery by it of this trust agreement
it is authorized to carry on the business of a trust company in the Province of
Ontario but if, notwithstanding the provisions of this section 7.14, it ceases
to be so authorized to carry on business, the validity and enforceability of
this trust agreement and the Voting Rights, the Exchange Right and the Automatic
Exchange Rights shall not be affected in any manner whatsoever by reason only of
such event but the Trustee shall, within 90 days after ceasing to be authorized
to carry on the business of a trust company in the Province of Ontario, either
become so authorized or resign in the manner and with the effect specified in
Article 10.
 
7.15   CONFLICTING CLAIMS. If conflicting claims or demands are made or asserted
with respect to any interest of any Beneficiary in any Exchangeable Shares,
including any disagreement between the heirs, representatives, successors or
assigns succeeding to all or any part of the interest of any Beneficiary in any
Exchangeable Shares resulting in conflicting claims or demands being made in
connection with such interest, then the Trustee shall be entitled, at its sole
discretion, to refuse to reorganize or to comply with any such claims or demand.
In so refusing, the Trustee may elect not to exercise any Voting Rights,
Exchange Right or Automatic Exchange Rights subject to such conflicting claims
or demands and, in so doing, the Trustee shall not be or become liable to any
person on account of such election or its failure or refusal to comply with any
 
                                       16
<PAGE>   17
 
such conflicting claims or demands. The Trustee shall be entitled to continue to
refrain from acting and to refuse to act until:
 
      (a) the rights of all adverse claimants with respect to the Voting
          Rights, Exchange Right or Automatic Exchange Rights subject to such
          conflicting claims or demands have been adjudicated by a final
          judgment of a court of competent jurisdiction; or
 
      (b) all differences with respect to the Voting Rights, Exchange Right or
          Automatic Exchange Rights subject to such conflicting claims or
          demands have conclusively settled by a valid written agreement binding
          on all such adverse claimants, and the Trustee shall have been
          furnished with an executed copy of such agreement.
 
If the Trustee elects to reorganize any claim or comply with any demand made by
any such adverse claimant, it may in its discretion require such claimant to
furnish such surety bond or other security satisfactory to the Trustee as it
shall deem appropriate fully to indemnity it as between all conflicting claims
or demands.
 
7.16   ACCEPTANCE OF TRUST. The Trustee hereby accepts the Trust created and
provided for by and in this trust agreement and agrees to perform the same upon
the terms and conditions herein set forth and to hold all rights, privileges and
benefits conferred hereby and by law in trust for the various persons who shall
from time to time be Beneficiaries, subject to all the terms and conditions
herein set forth.
 
                                   ARTICLE 8
 
                                  COMPENSATION
 
8.1    FEES AND EXPENSES OF THE TRUSTEE. Source and Cableshare jointly and
severally agree to pay to the Trustee reasonable compensation for all of the
services rendered by it under this trust agreement and will reimburse the
Trustee for all reasonable expenses (including taxes) and disbursements,
including the cost and expense of any suit or litigation of any character and
any proceedings before any governmental agency reasonably incurred by the
Trustee in connection with its duties under this trust agreement; provided that
Source and Cableshare shall have no obligation to reimburse the Trustee for any
expenses or disbursements paid, incurred or suffered by the Trustee in any suit
or litigation in which the Trustee is determined to have acted in bad faith or
with negligence or wilful misconduct.
 
                                   ARTICLE 9
 
                  INDEMNIFICATION AND LIMITATION OF LIABILITY
 
9.1    INDEMNIFICATION OF THE TRUSTEE. Source and Cableshare jointly and
severally agree to indemnify and hold harmless the Trustee and each of its
directors, officers and agents appointed and acting in accordance with this
trust agreement (collectively, the "Indemnified Parties") against all claims,
losses, damages, costs, penalties, fines and reasonable expenses (including
reasonable expenses of the Trustee's legal counsel) which, without fraud,
negligence, wilful misconduct or bad faith on the part of such Indemnified
Party, may be paid, incurred or suffered by the Indemnified Party by reason of
or as a result of the Trustee's acceptance or administration of the Trust, its
compliance with its duties set forth in this trust agreement, or any written or
oral instructions delivered to the Trustee by Source or Cableshare pursuant
hereto.
 
      In no case shall Source or Cableshare be liable under this indemnity for
any claim against any of the Indemnified Parties unless Source and Cableshare
shall be notified by the Trustee of the written assertion of a claim or of any
action commenced against the Indemnified Parties, promptly after any of the
Indemnified Parties shall have received any such written assertion of a claim or
shall have been served with a summons or other first legal process giving
information as to the nature and basis of the claim. Subject to (ii), below,
Source and Cableshare shall be entitled to participate at their own expense in
the defence and, if Source or Cableshare so elect at any time after receipt of
such notice, either of them may assume the defence of any suit brought to
enforce any such claim. The Trustee shall have the right to employ separate
counsel in any such suit and participate in the defence thereof but the fees and
expenses of such counsel shall be at the expense of
 
                                       17
<PAGE>   18
 
the Trustee unless: (i) the employment of such counsel has been authorized by
Source or Cableshare; or (ii) the named parties to any such suit include both
the Trustee and Source or Cableshare and the Trustee shall have been advised by
counsel acceptable to Source or Cableshare that there may be one or more legal
defences available to the Trustee which are different from or in addition to
those available to Source or Cableshare (in which case Source and Cableshare
shall not have the right to assume the defence of such suit on behalf of the
Trustee but shall be liable to pay the reasonable fees and expenses of counsel
for the Trustee).
 
9.2    LIMITATION OF LIABILITY. The Trustee shall not be held liable for any
loss which may occur by reason of depreciation of the value of any part of the
Trust Estate or any loss incurred on any investment of funds pursuant to this
trust agreement, except to the extent that such loss is attributable to the
fraud, negligence, wilful misconduct or bad faith on the part of the Trustee.
 
                                   ARTICLE 10
 
                               CHANGE OF TRUSTEE
 
10.1    RESIGNATION. The Trustee, or any trustee hereafter appointed, may at any
time resign by giving written notice of such resignation to Source and
Cableshare specifying the date on which it desires to resign, provided that such
notice shall never be given less than one month before such desired resignation
date unless Source and Cableshare otherwise agree and provided further that such
resignation shall not take effect until the date of the appointment of a
successor trustee and the acceptance of such appointment by the successor
trustee. Upon receiving such notice of resignation, Source and Cableshare shall
promptly appoint a successor trustee by written instrument in duplicate, one
copy of which shall be delivered to the resigning trustee and one copy to the
successor trustee.
 
10.2    REMOVAL. The Trustee, or any trustee hereafter appointed, may be removed
at any time on 30 days' prior notice by written instrument executed by Source
and Cableshare, in duplicate, one copy of which shall be delivered to the
trustee so removed and one copy to the successor trustee.
 
10.3    SUCCESSOR TRUSTEE. Any successor trustee appointed as provided under
this trust agreement shall execute, acknowledge and deliver to Source and
Cableshare and to its predecessor trustee an instrument accepting such
appointment. Thereupon the resignation or removal of the predecessor trustee
shall become effective and such successor trustee, without any further act, deed
or conveyance, shall become vested with all the rights, powers, duties and
obligations of its predecessor under this trust agreement, with the like effect
as if originally named as trustee in this trust agreement. However, on the
written request of Source and Cableshare or of the successor trustee, the
trustee ceasing to act shall, upon payment of any amounts then due it pursuant
to the provisions of this trust agreement, execute and deliver an instrument
transferring to such successor trustee all the rights and powers of the trustee
so ceasing to act. Upon the request of any such successor trustee, Source,
Cableshare and such predecessor trustee shall execute any and all instruments in
writing for more fully and certainly vesting in and confirming to such successor
trustee all such rights and powers.
 
10.4   NOTICE OF SUCCESSOR TRUSTEE. Upon acceptance of appointment by a
successor trustee as provided herein, Source and Cableshare shall cause to be
mailed notice of the succession of such trustee hereunder to each Beneficiary
specified in a List. If Source or Cableshare shall fail to cause such notice to
be mailed within 10 days after acceptance of appointment by the successor
trustee, the successor trustee shall cause such notice to be mailed at the
expense of Source and Cableshare.
 
                                       18
<PAGE>   19
 
                                   ARTICLE 11
 
                               SOURCE SUCCESSORS
 
11.1   CERTAIN REQUIREMENTS IN RESPECT OF COMBINATION, ETC. Source shall not
enter into any transaction (whether by way of reconstruction, reorganization,
consolidation, merger, transfer, sale, lease or otherwise) whereby all or
substantially all of its undertaking, property and assets would become the
property of any other person or, in the case of a merger, of the continuing
corporation resulting therefrom unless, but may do so if:
 
      (a) such other person or continuing corporation is a corporation (herein
          called the "Source Successor") incorporated under the laws of any
          state of the United States or the laws of Canada or any province
          thereof;
 
      (b) Source Successor, by operation of law, becomes, without more, bound
          by the terms and provisions of this trust agreement or, if not so
          bound, executes, prior to or contemporaneously with the consummation
          of such transaction a trust agreement supplemental hereto and such
          other instruments (if any) as are satisfactory to the Trustee and in
          the opinion of legal counsel to the Trustee are necessary or advisable
          to evidence the assumption by Source Successor of liability for all
          moneys payable and property deliverable hereunder and the covenant of
          such Source Successor to pay and deliver or cause to be delivered the
          same and its agreement to observe and perform all the covenants and
          obligations of Source under this trust agreement; and
 
      (c) such transaction shall, to the satisfaction of the Trustee and in the
          opinion of legal counsel to the Trustee, be upon such terms and
          substantially to preserve and not to impair in any material respect
          any of the rights, duties, powers and authorities of the Trustee or of
          the Beneficiaries hereunder.
 
11.2   VESTING OF POWERS IN SUCCESSOR. Whenever the conditions of section 11.1
hereof have been duly observed and performed, the Trustee, if required, by
section 11.1 hereof, Source Successor and Cableshare shall execute and deliver
the supplemental trust agreement provided for in Article 12 and thereupon Source
Successor shall possess and from time to time may exercise each and every right
and power of Source under this trust agreement in the name of Source or
otherwise and any act or proceeding by any provision of this trust agreement
required to be done or performed by the Board of Directors of Source or any
officers of Source may be done and performed with like force and effect by the
directors or officers of such Source Successor.
 
11.3   WHOLLY-OWNED SUBSIDIARIES. Nothing herein shall be construed as
preventing the amalgamation or merger of any wholly-owned subsidiary of Source
with or into Source or the winding-up, liquidation or dissolution of any
wholly-owned subsidiary of Source provided that all of the assets of such
subsidiary are transferred to Source or another wholly-owned subsidiary of
Source and any such transactions are expressly permitted by this Article 11.
 
                                   ARTICLE 12
 
                  AMENDMENTS AND SUPPLEMENTAL TRUST AGREEMENTS
 
12.1   AMENDMENTS, MODIFICATIONS, ETC. This trust agreement may not be amended
or modified except by an agreement in writing executed by Cableshare, Source and
the Trustee and approved by the Beneficiaries in accordance with Section 10.2 of
the Share Provisions.
 
12.2   MINISTERIAL AMENDMENTS. Notwithstanding the provisions of section 12.1
hereof, the parties to this trust agreement may in writing, at any time and from
time to time, without the approval of the Beneficiaries, amend or modify this
trust agreement for the purposes of:
 
      (a) adding to the covenants of either or both parties hereto for the
          protection of the Beneficiaries hereunder;
 
      (b) making such amendments or modifications not inconsistent with this
          trust agreement as may be necessary or desirable with respect to
          matters or questions which, in the opinion of the Board of
 
                                       19
<PAGE>   20
 
          Directors of each of Source and Cableshare and in the opinion of the
          Trustee, having in mind the best interests of the Beneficiaries, it
          may be expedient to make, provided that such boards of directors and
          the Trustee shall be of the opinion that such amendments and
          modifications will not be prejudicial to the interests of the
          Beneficiaries; or
 
      (c) making such changes or corrections which, on the advice of counsel to
          Cableshare, Source and the Trustee, are required for the purpose of
          curing or correcting any ambiguity or defect or inconsistent provision
          or clerical omission or mistake or manifest error, provided that the
          Trustee and the Board of Directors of each of Cableshare and Source
          shall be of the opinion that such changes or corrections will not be
          prejudicial to the interests of the Beneficiaries.
 
12.3   MEETING TO CONSIDER AMENDMENTS. Cableshare, at the request of Source,
shall call a meeting or meetings of the Beneficiaries for the purpose of
considering any proposed amendment or modification requiring approval pursuant
hereto. Any such meeting or meetings shall be called and held in accordance with
the by-laws of Cableshare, the Share Provisions and all applicable laws.
 
12.4   CHANGES IN CAPITAL OF SOURCE AND CABLESHARE. At all times after the
occurrence of any event effected pursuant to section 2.7 or 2.8 of the Support
Agreement, as a result of which either Source Common Shares of the Exchangeable
Shares or both are in any way changed, this trust agreement shall forthwith be
amended and modified as necessary in order that it shall apply with full force
and effect, mutatis mutandis, to all new securities into which Source Common
Shares or the Exchangeable Shares or both are so changed and the parties hereto
shall execute and deliver a supplemental trust agreement giving effect to and
evidencing such necessary amendments and modifications.
 
12.5   EXECUTION OF SUPPLEMENTAL TRUST AGREEMENTS. No amendment to or
modification or waiver of any of the provisions of this trust agreement
otherwise permitted hereunder shall be effective unless made in writing and
signed by all of the parties hereto. From time to time Cableshare (when
authorized by a resolution of the Board of Directors), Source (when authorized
by a resolution of its Board of Directors) and the Trustee may, subject to the
provisions of these presents, and they shall, when so directed by these
presents, execute and deliver by their proper officers, trust agreements or
other instruments supplemental hereto, which thereafter shall form part hereof,
for any one or more of the following purposes:
 
      (a) evidencing the succession of Source Successors to Source and the
          covenants of and obligations assumed by each such Source Successor in
          accordance with the provisions of Article 11 and the successor of any
          successor trustee in accordance with the provisions of Article 10;
 
      (b) making any additions to, deletions from or alterations of the
          provisions of this trust agreement or the Voting Rights, the Exchange
          Right or the Automatic Exchange Rights which, in the opinion of the
          Trustee, will not be prejudicial to the interests of the Beneficiaries
          or are in the opinion of counsel to the Trustee necessary or advisable
          in order to incorporate, reflect or comply with any legislation the
          provisions of which apply to Source, Cableshare, the Trustee or this
          trust agreement; and
 
      (c) for any other purposes not inconsistent with the provisions of this
          trust agreement, including without limitation, to make or evidence any
          amendment or modification to this agreement as contemplated hereby,
          provided that, in the opinion of the Trustee, the rights of the
          Trustee and the Beneficiaries will not be prejudiced thereby.
 
                                       20
<PAGE>   21
 
                                   ARTICLE 13
 
                                  TERMINATION
 
13.1   TERM. The Trust created by this trust agreement shall continue until the
earliest to occur of the following events:
 
      (a) no outstanding Exchangeable Shares are held by a Beneficiary;
 
      (b) each of Cableshare and Source elects in writing to terminate the
          Trust and such termination is approved by the Beneficiaries of the
          Exchangeable Shares in accordance with Section 10.2 of the Share
          Provisions; and
 
      (c) 21 years after the death of the last survivor of the descendants of
          His Majesty King George VI of Canada and of the United Kingdom of
          Great Britain and Northern Ireland living on the date of the creation
          of the Trust.
 
13.2   SURVIVAL OF AGREEMENT. This trust agreement shall survive any termination
of the Trust and shall continue until there are no Exchangeable Shares
outstanding held by a Beneficiary; provided, however, that the provisions of
Articles 9 and 10 shall survive any such termination of this trust agreement.
 
                                   ARTICLE 14
 
                                    GENERAL
 
14.1   SEVERABILITY. If any provision of this trust agreement is held to be
invalid, illegal or unenforceable, the validity, legality or enforceability of
the remainder of this trust agreement shall not in any way be affected or
impaired thereby and the agreement shall be carried out as nearly as possible in
accordance with its original terms and conditions.
 
14.2   ENUREMENT. This trust agreement shall be binding upon and enure to the
benefit of the parties hereto and their respective successors and permitted
assigns and to the benefit of the Beneficiaries.
 
14.3   NOTICES TO PARTIES. All notices and other communications between the
parties hereunder shall be in writing and shall be deemed to have been given if
delivered personally or by confirmed telecopy to the parties at the following
addresses (or at such other address for such party as shall be specified in like
notice):
 
                                       21
<PAGE>   22
 
      (a)  if to Source at:
 
           Source Media, Inc.
           8140 Walnut Hill Lane
           Suite 1000
           Dallas, Texas 75231
           U.S.A.
 
           Attention: Chairman and CEO
           Telecopier: (214) 890-9132
 
      (b)  if to Cableshare at:
 
           Cableshare Inc.
           150 Dufferin Avenue
           Suite 906
           London, Ontario
           Canada N6A 5N6
      
           Attention: President
           Telecopier: (519) 663-0339
 
      (c)  if to the Trustee at:
 
           --
 
           Attention:   --
           Telecopy:    --
 
Any notice or other communication given personally shall be deemed to have been
given and received upon delivery thereof and if given by telecopy shall be
deemed to have been given and received on the date of receipt thereof unless
such day is not a Business Day in which case it shall be deemed to have been
given and received upon the immediately following Business Day.
 
14.4   NOTICE OF BENEFICIARIES. Any and all notices to be given and any
documents to be sent to any Beneficiaries may be given or sent to the address of
such holder shown on the register of holders of Exchangeable Shares in any
manner permitted by the by-laws of Cableshare from time to time in force in
respect of notices to shareholders and shall be deemed to be received (if given
or sent in such manner) at the time specified in such by-laws, the provisions of
which by-laws shall apply mutatis mutandis to notices or documents as aforesaid
sent to such holders.
 
14.5   RISK OF PAYMENTS BY POST. Whenever payments are to be made or documents
are to be sent to any Beneficiary by the Trustee or by Cableshare, or by such
Beneficiary to the Trustee or to Source or Cableshare, the making of such
payment or sending of such document sent through the post shall be at the risk
of the party paying or sending the same.
 
14.6   COUNTERPARTS. This trust agreement may be executed in counterparts, each
of which shall be deemed an original, but all of which taken together shall
constitute one and the same instrument.
 
14.7   JURISDICTION. This trust agreement shall be construed and enforced in
accordance with the laws of the Province of Ontario and the laws of Canada
applicable therein.
 
14.8   ATTORNMENT. Source agrees that any action or proceeding arising out of or
relating to this trust agreement may be instituted in the courts of Ontario,
waives any objection which it may have now hereafter to the venue of any such
action or proceeding, irrevocably submits to the jurisdiction of the said courts
in any such action or proceeding, agrees to be bound by any judgment of the said
courts and not to seek, and hereby waives, any review of the merits of any such
judgment by the courts of any other jurisdiction and hereby appoints Cableshare
at its registered office in the Province of Ontario as Source's attorney for
service of process.
 
                                       22
<PAGE>   23
 
      IN WITNESS WHEREOF, the parties hereto have caused this trust agreement to
be duly executed as of the date first above written.

 
                                            SOURCE MEDIA, INC.
 
                                            by
                                              ---------------------------------

                                                                            C.S.
                                            --------------------------------
 

                                            CABLESHARE INC.
 
                                            by
                                              ---------------------------------

                                                                            C.S.
                                            --------------------------------
 

                                            -- TRUST COMPANY
 
                                            by
                                              ---------------------------------

                                            -----------------------------------


                                       23   

<PAGE>   1
                                                                      EXHIBIT 21

                                 Subsidiaries
                                 ------------

IT Network, Inc., a Texas corporation 

Cableshare Inc., an Ontario, Canada corporation

99.7758 Ontario Inc., an Ontario, Canada corporation

<PAGE>   1
 
                                                                    EXHIBIT 23.1
 
                        CONSENT OF INDEPENDENT AUDITORS
 
     We consent to the references to our firm under the captions "Experts," and
"Selected Consolidated Financial Data of Source," and to the use of our report
dated February 9, 1996, in the Registration Statement (Form S-1) and related
Prospectus of Source Media, Inc., for the registration of shares of its common
stock.
 
                                            /s/ ERNST & YOUNG LLP
 
                                            ------------------------------------
                                            ERNST & YOUNG LLP
 
Dallas, Texas
November 22, 1996

<PAGE>   1
 
                                                                    EXHIBIT 23.2
 
                         INDEPENDENT AUDITORS' CONSENT

To the Board of Directors of
     CABLESHARE INC. 

     We consent to the use of our report included herein, and to the reference
to our firm under the heading "Experts" in the prospectus. Our report includes
additional comments for U.S. readers referring to the economic dependency of
Cableshare Inc. on its parent.

KPMG 
Chartered Accountants
 
London, Canada 
November 26, 1996


<PAGE>   1
                                                                   EXHIBIT 23.5

                                                 Peter L. Clark (Toronto Office)
                                                                  (416) 360-3543


                              November 26, 1996


BY FACSIMILE

Source Media, Inc.
8140 Walnut Hill Lane
Suite 1000
Dallas, Texas 75231
U.S.A.

c/o Bowne of Dallas (Facsimile (214) 651-1051)

Attention:  Maryann Walsh

Dear Sirs/Madame:

        We have reviewed the "Canadian Federal Income Tax Considerations for
Exchangeable Shareholders" section of the Registration Statement on Form S-1 of
Source Media, Inc. to be filed on or about November 26, 1996.

        We consent to our firm being referred to under the headings "Legal 
Opinions" and "Canadian Federal Income Tax Considerations for Exchangeable 
Shareholders" in the Prospectus that is a part of the Registration Statement, 
relating to the Canadian Federal Income Tax Considerations for Exchangeable 
Shareholders.

        Holders of Exchangeable Shares or acquirors of Source Common Shares
should not rely on Heenan Blaikie with respect to any other matters.

                                        Yours truly,


                                        HEENAN BLAIKIE

                                        /s/ PETER L. CLARK

                                        Peter L. Clark

PLC/mvp


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