TELE COMMUNICATIONS INC /CO/
SC 13D, 1998-10-23
TELEPHONE COMMUNICATIONS (NO RADIOTELEPHONE)
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<PAGE>   1

 
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                  SCHEDULE 13D
                    Under the Securities Exchange Act of 1934
- --------------------------------------------------------------------------------
                           Telewest Communications plc
- --------------------------------------------------------------------------------
                                (Name of Issuer)

                 Ordinary Shares, par value 10 pence per share,
            represented by American Depositary Shares, each of which
                         represents ten Ordinary Shares
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)

                                  87956P 10 5*
- --------------------------------------------------------------------------------
                                 (CUSIP Number)

                             Stephen M. Brett, Esq.
                            Tele-Communications, Inc.
                                5619 DTC Parkway
                            Englewood, Colorado 80111
                            Telecopy: (303) 488-3245

                                 with a copy to:

                             Charles Y. Tanabe, Esq.
                             Sherman & Howard L.L.C.
                       633 Seventeenth Street, Suite 3000
                                Denver, CO 80202
                                 (303) 299-8108
- --------------------------------------------------------------------------------
(Name,  Address and Telephone Number of Person Authorized to Receive Notices and
Communications)

                               September 10, 1998
- --------------------------------------------------------------------------------
             (Date of Event which Requires Filing of this Statement)
If the filing person has previously  filed a statement on Schedule 13G to report
the  acquisition  which is the subject of this  Schedule 13D, and is filing this
schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box
|_|.

Note:  Schedules  filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See Rule 13d-7 for other parties
to whom copies are to be sent.



CUSIP NO. 87956P 10 5.

- ----------
*CUSIP No. 87956 10 5 relates to the American Depositary Shares.

<PAGE>   2





                                  SCHEDULE 13D



CUSIP No. 87956P 10 5
- ----------------------



1      NAME OF REPORTING PERSON
       TELE-COMMUNICATIONS, INC.

       S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
       84-1260157

- ------ -------------------------------------------------------------------------
2      CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP
       (See Instructions)(a) |_| (b) |X|

- ------ -------------------------------------------------------------------------
3      SEC USE ONLY
- ------ -------------------------------------------------------------------------
4      SOURCE OF FUNDS (See Instructions)
       WC
- ------ -------------------------------------------------------------------------
5      CHECK IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
       ITEMS 2(d) or 2(e): |_|

       Not Applicable
- ------ -------------------------------------------------------------------------
6      CITIZENSHIP OR PLACE OF ORGANIZATION
       Delaware
- --------------------- -------- -------------------------------------------------
                      7        SOLE VOTING POWER
                               463,438,961*
     NUMBER OF
       SHARES        -------- --------------------------------------------------
    BENEFICIALLY      8        SHARED VOTING POWER
      OWNED BY                 926,877,921**
        EACH
     REPORTING        -------- -------------------------------------------------
       PERSON         9        SOLE DISPOSITIVE POWER
        WITH                   463,438,961*
 
                      -------- -------------------------------------------------
                      10       SHARED DISPOSITIVE POWER
                               926,877,921**
- -------- -----------------------------------------------------------------------
11       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
         926,877,921*
- -------- -----------------------------------------------------------------------
12       CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES
         (See Instructions) |_|

         Not Applicable
- -------- -----------------------------------------------------------------------
13       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
         43.20%
- -------- -----------------------------------------------------------------------
14       TYPE OF REPORTING PERSON (See Instructions)
         CO

- ----------

<PAGE>   3


*  Excludes up to a maximum of 180,000,000 Ordinary Shares of Telewest
Communications plc ("Telewest") which, pursuant to certain conditions, may be
acquired by MediaOne International Holdings, Inc. ("MediaOne International"), a
wholly-owned subsidiary of MediaOne Group, Inc., pursuant to a letter agreement
(the "Letter Agreement") with Southwestern Bell International Holdings (UK-1)
Corporation. As described below certain of Tele-Communications' affiliates have
rights of first refusal with respect to these shares as set forth in the
Relationship Agreement referred to below.

** All of the subject shares (plus those which may be acquired pursuant to
rights of first refusal arising out of the Letter Agreement) may be deemed to be
beneficially owned, for the purposes of Section 13(d) of the Securities Exchange
Act of 1934, as amended (the "Exchange Act") by Tele-Communications, Inc. by
virtue of the Relationship Agreement and Operating Agreement referred to below.
The filing of this Schedule 13D shall not be construed as an admission by Tele-
Communications, Inc. that it is, for the purposes of Section 13(d) of the
Exchange Act, the beneficial owner of the subject shares as to which it does not
have sole voting and dispositive power.


<PAGE>   4



Item 1. Security and Issuer

     This Statement relates to the ordinary shares, par value 10 pence per share
(the "Telewest Ordinary Shares"), of Telewest Communications plc, a public
limited company incorporated under the laws of England and Wales ("Telewest").
The address of the principal executive offices of Telewest is Genesis Business
Park, Albert Drive, Woking, Surrey, GU21 5RW, United Kingdom.

Item 2.  Identity and Background.

         This statement is filed on behalf of Tele-Communications, Inc. ("TCI"),
         a Delaware corporation.

         All shares issued by Telewest described herein as beneficially owned by
         TCI or its subsidiary are beneficially owned by TW Holdings, L.L.C., a
         Colorado limited liability company ("TW Holdings"). Fifty percent of TW
         Holdings is beneficially owned by United Artists Programming - Europe,
         Inc., a subsidiary of TCI ("UAP"), and 50% by affiliates of MediaOne
         Group, Inc., formerly named U S WEST, Inc. ("MediaOne Inc."). The
         shares beneficially owned by MediaOne Inc. are owned through its
         subsidiaries, MediaOne UK Cable, Inc. ("UK Cable") which owns
         approximately 45.6% of TW Holdings and MediaOne Cable Partnership
         Holdings, Inc., ("Cable Partnership") which owns approximately 4.4% of
         TW Holdings. MediaOne Inc., MediaOne International (as defined below),
         UK Cable and Cable Partnership are referred to collectively herein as
         "MediaOne."

         On September 10, 1998, MediaOne International Holdings, Inc. ("MediaOne
         International"), a subsidiary of MediaOne Inc., entered into a Letter
         Agreement (defined below) with Southwestern Bell International Holdings
         (UK-1) Corporation ("SBUK"), an affiliate of SBC Communications Inc.,
         pursuant to which MediaOne International agreed to acquire up to
         180,000,000 Telewest Ordinary Shares, subject to certain conditions.
         The Letter Agreement gives rise to UAP's right to negotiate to buy a
         portion of these shares as more fully described below.

         The name, business address, present principal occupation or employment,
         citizenship and the material occupation, position, offices or
         employments during the last five years of each current director and
         executive officer of TCI is set forth below.

              Directors, Executive Officers and Controlling Persons
                                       of
                        Tele-Communications, Inc. ("TCI")

<TABLE>
<CAPTION>

DIRECTORS
- ---------

                                                                        Principal Business or 
                            Principal Occupation &                      Organization in Which such
Name                        Business Address                            Employment Is Conducted
- ----                        -----------------------                     --------------------------
<S>                         <C>                                         <C>
Donne F. Fisher             Consultant & Director of TCI; Business      Cable television &
                            Executive                                   telecommunications
                            5619 DTC Parkway                            & programming services
                            Englewood, CO 80111

John W. Gallivan            Director of TCI; Director of                Newspaper publishing
                            Kearns-Tribune Corporation
                            400 Tribune Building
                            Salt Lake City, UT 84111

Paul A. Gould               Director of TCI; an Executive Vice          Investment banking services
                            President & a Managing Director of
                            Allen & Company Incorporated
                            711 5th Avenue
                            New York, New York 10022
</TABLE>

<PAGE>   5

<TABLE>
<CAPTION>
                                                                        Principal Business or 
                            Principal Occupation &                      Organization in Which such
Name                        Business Address                            Employment Is Conducted
- ----                        -----------------------                     --------------------------
<S>                         <C>                                         <C>
Leo J. Hindery, Jr.         President, Chief Operating Officer &        Cable television &
                            Director of TCI                             telecommunications
                            5619 DTC Parkway                            & programming services
                            Englewood, CO 80111

Jerome H. Kern              Vice Chairman of the Board & a              Business Consulting; Law
                            Director of TCI; Consultant; Special
                            Counsel to Baker & Botts, L.L.P.
                            5619 DTC Parkway
                            Englewood, CO 80111

Kim Magness                 Director of TCI; Business Executive         Management of various business
                            4000 E. Belleview                           enterprises
                            Englewood, CO 80111

John C. Malone              Chairman of the Board, Chief Executive      Cable television &
                            Officer & Director of TCI                   telecommunications
                            5619 DTC Parkway                            & programming services
                            Englewood, CO 80111

Robert A. Naify             Director of TCI; President & Chief          Provider of services to the
                            Executive Officer of Todd-AO                motion picture industry
                            Corporation
                            172 Golden Gate Avenue
                            San Francisco, CA 94102

J C Sparkman                Consultant & Director of TCI                Cable television &
                            5619 DTC Parkway                            telecommunications
                            Englewood, CO 80111                         & programming services


EXECUTIVE
OFFICERS
- ---------

Robert R. Bennett           Executive Vice President of TCI             Cable television &
                            5619 DTC Parkway                            telecommunications
                            Englewood, CO 80111                         & programming services

Stephen M. Brett            Executive Vice President, Secretary         Cable television &
                            & General Counsel of TCI                    telecommunications
                            5619 DTC Parkway                            & programming services
                            Englewood, CO 80111

Gary S. Howard              Executive Vice President of TCI             Cable television &
                            5619 DTC Parkway                            telecommunications
                            Englewood, CO 80111                         & programming services

Marvin L. Jones             Executive Vice President of TCI             Cable television &
                            5619 DTC Parkway                            telecommunications
                            Englewood, CO 80111                         & programming services

Ann M. Koets                Executive Vice President of                 Cable television &
                            TCI Communications, Inc.                    telecommunications
                            5619 DTC Parkway                            & programming services
                            Englewood, CO  80111

Larry E. Romrell            Executive Vice President of TCI             Cable television &
                            5619 DTC Parkway                            telecommunications
                            Englewood, CO 80111                         & programming services

Bernard W. Schotters, II    Senior Vice President & Treasurer           Cable television &
                            of TCI                                      telecommunications
                            5619 DTC Parkway                            & programming services
                            Englewood, CO 80111
</TABLE>
<PAGE>   6




         (a)      NAME: Tele-Communications, Inc.

         (b)      PLACE OF ORGANIZATION: Delaware

         (c)      PRINCIPAL BUSINESS:

                  Tele-Communications is a diversified global telecommunications
                  and television programming company engaged in domestic and
                  international communications.

         (d)      BUSINESS ADDRESS:

                  Tele-Communications, Inc.
                  5619 DTC Parkway
                  Englewood, CO  80111
 
         (e)      CONVICTION IN A CRIMINAL PROCEEDING and

         (f)      PARTY IN AN ADMINISTRATIVE PROCEEDING:

                  During the last five years, neither TCI nor, to TCI's
                  knowledge, any current director or executive officer of TCI
                  listed above has been (a) convicted in a criminal proceeding
                  (excluding traffic violations or similar misdemeanors) or (b)
                  a party to a civil proceeding of a judicial or administrative
                  body of competent jurisdiction and as a result of such
                  proceeding was or is subject to a judgment, decree or final
                  order enjoining future violations of, or prohibiting
                  activities subject to, Federal or State securities laws or
                  finding any violation of such laws.

Item 3. Source and Amount of Funds or Other Consideration.

     The source of funds for TCI in connection with all transactions described
herein is and will be working capital.

Item 4. Purpose of the Transaction.

BACKGROUND

     The Merger Offer.

     On April 15, 1998, the boards of Telewest and General Cable PLC, a public
limited company incorporated under the laws of England and Wales ("General
Cable"), announced that they agreed to the terms of a proposed merger. Subject
to the satisfaction of certain pre-conditions, Telewest made an offer (the
"Merger Offer") to holders of General Cable Ordinary Shares, par value (pound)1
per share (the "General Cable Ordinary Shares"), including holders of American
Depositary Shares, each representing five General Cable Ordinary Shares (the
"General Cable ADSs"), pursuant to the Offer to Purchase/Prospectus, dated June
29, 1998 of Telewest (the "Offer to Purchase") (a copy of which is filed as
Exhibit (2) to this Schedule 13D) on the following basis:

        For every General Cable         1.243 new Telewest  Ordinary  Shares and
        Ordinary Share                  65 pence in cash

        For every General Cable ADS     6.215 new Telewest  Ordinary  Shares and
                                        325 pence in cash

The terms of the Merger Offer (including the pre-conditions and conditions with
respect thereto) are set forth in the Offer to Purchase, which is included as
Exhibit (2) to this Schedule 13D and which is incorporated herein in its
entirety by reference.
<PAGE>   7

     On June 28, 1998, Telewest, in order to fund the cash element of the Merger
Offer, offered to issue approximately 261 million new Telewest Ordinary Shares,
at a price of 92.5 pence per Telewest Ordinary Share (the "Pre-emptive Issue"),
to Telewest shareholders (except for certain non-US overseas shareholders) and
the holders of convertible preference shares of Telewest (which preference
shares (the "Convertible Preference Shares") were owned by UAP and certain other
significant shareholders of Telewest and which were each convertible into one
Telewest Ordinary Share).

     In connection with the Offer to Purchase and as disclosed therein, each of
Tele-Communications International, Inc. ("TINTA"), MediaOne and Cox (as defined
below) undertook to take up their full entitlement for new Telewest Ordinary
Shares under the Pre-emptive Issue and also undertook to subscribe for any
remaining new Telewest Ordinary Shares not taken up under the Pre-emptive Issue
in accordance with the terms of a subscription agreement entered into by TINTA
and such other shareholders. The Merger Offer and the Pre-emptive Issue,
together with various matters relating thereto, were approved by Telewest
shareholders on July 28, 1998 and the Merger Offer became unconditional on
September 1, 1998. Pursuant to the Operating Agreement and the Contribution
Agreement, dated April 15, 1998 (the "Contribution Agreement") among TINTA,
MediaOne and TW Holdings, TW Holdings agreed to acquire an additional 15,340,370
Telewest Ordinary Shares which were not taken up in the Pre-emptive Issue on
behalf of each of TINTA and MediaOne (30,680,740 Telewest Ordinary Shares in
total).

     Also, as stated in the Offer to Purchase, each of TINTA, MediaOne, Cox and
SBC agreed to convert their entire respective holdings of Convertible Preference
Shares into Telewest Ordinary Shares upon the Merger Offer becoming
unconditional (September 1, 1998). This conversion occurred on September 8,
1998.

     As of the closing of the Pre-emptive Issue, the conversion of Convertible
Preference Shares referenced above, and the allotment of Telewest Ordinary
Shares in the Merger Offer, TINTA and TW Holdings beneficially own such number
of Telewest Ordinary Shares as are described herein. As described herein, TINTA
may acquire additional shares upon the exercise of certain rights granted by the
Relationship Agreement described below which are triggered by the consummation
of the transactions contemplated by the Letter Agreement.

THE RELATIONSHIP AGREEMENT, THE OPERATING AGREEMENT AND RELATED MATTERS

     As of April 15, 1998, in connection with the Merger Offer, TINTA, MediaOne,
UK Cable, Cable Partnership, Cox Communications, Inc. and certain of its
affiliates (collectively, "Cox"), certain affiliates of SBC Communications Inc.
(collectively, "SBC") and Telewest entered into an Amended and Restated
Relationship Agreement (the "Relationship Agreement"). The Relationship
Agreement became effective as of September 1, 1998. The Relationship Agreement
broadly reflects the arrangements which were already in place among Telewest,
TINTA, MediaOne, Cox and SBC under the various agreements entered into at the
time of flotation of Telewest in 1994 and its merger with SBC CableComms UK in
1995.

     As of September 11, 1998, UK Cable, Cable Partnership and UAP entered into
an Amended and Restated Operating Agreement for TW Holdings (the "Operating
Agreement"). Under the Operating Agreement beneficial ownership of 448,098,590
and 448,098,591 Telewest Ordinary Shares were transferred from MediaOne and
TINTA, respectively, to TW Holdings. Pursuant to the terms of the Operating
Agreement, the managing directors of TW Holdings will consist of four persons,
two appointed by TINTA and two appointed by MediaOne. The managing directors
will act by majority vote subject to certain exceptions requiring unanimous
vote. In addition, TW Holdings is not permitted to transfer its Telewest shares,
subject to certain exceptions, without unanimous vote of the managing directors.
Furthermore, TW Holdings agrees to vote all its Telewest shares in favor of any
candidate for director of Telewest which either TINTA or MediaOne is entitled to
nominate in accordance with Telewest's Articles of Association or the
Relationship Agreement.


<PAGE>   8

     Pursuant to the Relationship Agreement and the Operating Agreement, TINTA
and MediaOne have agreed that, on any matter requiring shareholder approval,
they will vote their Telewest shares together in such manner as may be agreed by
them or, in the absence of such agreement, will vote their Telewest shares
together in the manner that would most likely continue the status quo without
materially increasing Telewest's financial obligations or materially deviating
from its approved budget and business plan. If TINTA or MediaOne, as the case
may be, have a conflict of interest in any matter, they shall abstain from
voting (or the Telewest shares owned by TW Holdings and attributable to them
shall not be voted) and the members of the other affiliate group may vote the
Telewest shares attributable to them on such matter as they deem appropriate.
These voting restrictions will lapse after December 31, 1999 if TINTA or
MediaOne so notifies the other party following the disposal by such other party
of more than 43 million of its Telewest shares other than to an affiliate or
pursuant to a Permitted Demerger (defined as certain distributions which result
in an affiliate of the transferor owning 80% or more of the transferor's shares
in Telewest) or with the first party's consent.

     The Relationship Agreement also provides that for so long as either TINTA
or MediaOne holds 15% or more of the Telewest shares in issue, ignoring all
Telewest shares issued pursuant to or for the purposes of share options, the
consent of TINTA and/or MediaOne (as appropriate) must be obtained by Telewest
before: (a) making any material acquisition or disposal out of the ordinary
course of business; (b) incurring any borrowings or indebtedness in the nature
of borrowings or granting any security interests in excess of (pound) 50 million
in aggregate (excluding borrowings under facilities in place at the date the
Relationship Agreement became effective and any borrowings or security interests
consented to after that date); (c) allotting or issuing shares or securities
convertible into shares or granting options other than pursuant to the
Pre-emptive Rights described on page I-75 of the Disclosure Document of Telewest
dated June 29, 1998 which is exhibit 1 hereto (the "Disclosure Document"), the
Pre-emptive Issue or the conversion of Preference Shares (as defined below) or
pursuant to options (depending on their terms), convertible or similar
securities granted or issued before the date of the Relationship Agreement or
with the necessary consents after the date on which the Relationship Agreement
became unconditional and certain other exceptions; (d) appointing or removing
the chief executive officer of Telewest; or (e) increasing the number of
directors holding office beyond 14.

     The Relationship Agreement provides that Telewest and the shareholder
groups party to the Relationship Agreement will accept a number of restrictions
on their ability to extend the scope of their business.

     For the purpose of these restrictions, the following definitions set forth
in the Relationship Agreement apply:

                  "Cable Telephony" means any voice or data telecommunications
         transmission service which operates in whole or in part by cable links
         to subscribers' premises, is interconnected at some point to a public
         switched network and is intended to serve customers in the UK.

                  "Cable Television" means any service provided to customers on
         a subscription or pay-per-view basis which sends sounds or visual
         images or both by means of cable, radio or microwave transmission
         systems for television reception at two or more locations, whether sent
         for simultaneous reception or at different times in response to
         subscribers' requests, including, without limitation, video-on-demand
         services and other interactive services and other entertainment,
         telecommunications and information services.

     Pursuant to the Relationship Agreement, each of TINTA and MediaOne has
accepted certain non-compete obligations for so long as TINTA or MediaOne (as
appropriate) has a Qualifying Interest (as defined in the Telewest Articles of
Association) and for one year thereafter. Equivalent restrictions apply to SBC
and Cox for so long as they have a Lesser Qualifying Interest (as defined in the
Articles of Association) and for one year thereafter. The provisions restrict
direct ownership of UK Cable Television and Cable Telephony assets and the
acquisition of equity interests in companies with such assets, subject to
certain de minimis and other exceptions, but allow TINTA, MediaOne, SBC or Cox
(as appropriate) to take up an otherwise restricted opportunity in Cable
Television  or Cable  Telephony  in the  United Kingdom provided that Telewest
first rejects the opportunity.
<PAGE>   9

     Affiliates of TINTA, MediaOne, SBC and Cox entered into "gain recognition
agreements" (the "GRAs") with the US Internal Revenue Service in connection with
the transfer of stock to Telewest upon its formation by merger in 1995. GRAs
provide that for a specified number of years (generally, 10 years) a US person
who transfers stock to a foreign corporation will be required to recognize gain,
for US tax purposes, attributable to the transferred stock in the event the
transferee foreign corporation disposes of the transferred stock (or all or a
substantial portion of the assets of the corporation whose stock was
transferred). To ensure that gain will not be triggered under the GRAs, Telewest
has made certain covenants under the Relationship Agreement, restricting its
ability to dispose of its assets, in favor of TINTA, MediaOne, SBC and Cox to
the extent any group individually holds, or TINTA and MediaOne or SBC and Cox
collectively hold, 7.5% or more of the Telewest shares.

     TINTA and MediaOne have agreed between them pursuant to the Relationship
Agreement that no transfers are permitted by members of the TINTA Group (as
defined in the Relationship Agreement) or the MediaOne Group (as defined in the
Relationship Agreement) before December 31, 1999 other than (a) to an
"Affiliate" (defined as a person controlled by, controlling or under joint
control with the relevant member of the TINTA Group or the MediaOne Group) or
(b) with the written consent of the other and approval of the identity of the
transferee and (if the transferee becomes a member of the TINTA Group or the
MediaOne Group) the transferee agreeing to adhere to the Relationship Agreement
or (c) pursuant to a Permitted Demerger (as defined in the Relationship
Agreement which is exhibit 4 hereto).

     After December 31, 1999, any proposed transfers by a member of the TINTA
Group or the MediaOne Group will be subject to rights of first refusal in favor
of the other of MediaOne or TINTA. These provisions will not apply to (a)
transfers to an Affiliate of TINTA or MediaOne or (b) a transfer pursuant to a
Permitted Demerger, provided that any transferee which becomes a member of the
relevant group executes a deed of adherence to the Relationship Agreement.

     The Relationship Agreement also contains buy-sell provisions as between the
TINTA Group and the MediaOne Group in the event of certain changes of control.
Where the TINTA Group (other than TCI) or the MediaOne Group (other than
MediaOne Inc.) experiences a change of control for these purposes, the group
which is unaffected by the change of control may offer to buy the shares of the
affected group (or to sell its shares to the affected group) specifying a price
at which it is prepared to buy or sell for these purposes or to consent to the
change of control. If the unaffected group does not consent, the affected group
has the right to choose whether to buy or sell at that price.

     All transfers of Telewest shares by SBC or Cox are subject to rights of
first offer and rights of first refusal in favor of TINTA and MediaOne other
than in respect of: (a) Public Transfers (as defined in the Relationship
Agreement); (b) transfers where the shares remain controlled by SBC or Cox; (c)
transfers to members of the same group or from SBC to Cox or vice versa,
provided the transferee agrees to be bound by the Relationship Agreement; or (d)
transfers following a general takeover offer for Telewest (whether by a third
party or by SBC or Cox).

     The Operating Agreement further provides that neither TINTA nor MediaOne
will transfer all or a portion of its ownership interest in TW Holdings on or
before December 31, 1999 (except to affiliates and certain other exceptions)
unless (a) the prior written consent of the other party is obtained, (b) the
other party approves, in its sole discretion, the identity of the transferee,
and (c) the transferee executes a counterpart of the Relationship Agreement.
Furthermore, under the Operating Agreement, if either TINTA or MediaOne desires
to transfer its ownership interest in TW Holdings to a third party, the other
has a right of first refusal. In the event of a change of control of either
TINTA (other than a change of control of TCI) or MediaOne (other than a change
of control of MediaOne Inc.), such party must give notice thereof to the other
party and provide the other party with an opportunity to either consent to the
change of control or offer a price at which the responding party is either


<PAGE>   10

willing to sell to the notifying party the responding party's ownership interest
in TW Holdings or purchase all of the notifying party's ownership interest. Each
party to the Operating Agreement also agrees that if such party acquires
additional shares of Telewest prior to any distribution of Telewest shares to
the members of TW Holdings, the beneficial interest in such shares will be
contributed to TW Holdings with a corresponding increase in such party's
ownership interest in TW Holdings.

     Furthermore, as contemplated in the Merger Offer and in accordance with the
Relationship Agreement, Telewest adopted revised Articles of Association (the
"Articles of Association") which provide, among other things, that (a) for so
long as TINTA or MediaOne holds a Qualifying Interest, such entity will be
entitled to appoint two persons to the board of directors; (b) for so long as
TINTA or MediaOne holds at least a Lesser Qualifying Interest, such entity will
be entitled to appoint one person to the board of directors; and (c) for so long
as SBC, Cox or Vivendi (as defined below) holds at least a Lesser Qualifying
Interest, such entity will be entitled to appoint one person to the board of
directors. The Articles of Association further provide that each committee of
the board of directors of Telewest must include at least one director designated
by TINTA and one director designated by MediaOne; provided that the majority of
members of each committee and the chairman thereof shall be independent of TINTA
and MediaOne. Furthermore, for so long as Cox, SBC and Vivendi own a Lesser
Qualifying Interest, they may appoint a non-voting observer to any committee.

     Telewest has also agreed under the Relationship Agreement that the
directors it appoints shall be individuals that are reasonably acceptable to
MediaOne and TINTA. The agreement of TINTA and MediaOne in relation to the above
matters will only be required so long as that shareholder retains a Qualifying
Interest.

     Also, in connection with the Merger Offer and pursuant to a Registration
Rights Agreement, dated October 3, 1995, as amended by Amendment No. 1 to
Registration Rights Agreement, dated June 29, 1998 (the "Registration Rights
Agreement"), Telewest has agreed that TINTA, MediaOne, SBC, Cox and Vivendi
S.A., the principal stockholder of General Cable prior to the Merger Offer
("Vivendi"), will have the right, subject to certain limited exceptions, to
require Telewest to include all or any portion of their Telewest shares
(including those arising from a conversion of Telewest Preference Shares) in any
registered offering by Telewest of Telewest shares under the US Securities Act
of 1933, as amended (the "Securities Act"), or in a public offering under UK
law. In addition, TINTA, MediaOne, SBC, Cox and Vivendi will have the right to
cause Telewest on up to ten separate occasions (two exercisable by each of
TINTA, MediaOne, SBC, Cox and Vivendi) to offer all or any part of their
Telewest shares for sale in a registered offering under the Securities Act or in
a public offering under UK law.

     The foregoing descriptions of the Relationship Agreement, the Operating
Agreement, the Registration Rights Agreement, the Articles of Association, and
the Contribution Agreement are summaries thereof and do not purport to be
complete and are qualified in their entirety to the full text of the
Relationship Agreement, the Operating Agreement, the Registration Rights
Agreement, the Amendment No. 1 thereto, Articles of Association, and the
Contribution Agreement, copies of which are Exhibits (4), (5), (6), (7), (8) and
(9) hereto and are incorporated by reference herein.


LETTER AGREEMENT

     On September 10, 1998, MediaOne International entered into a letter
agreement (the "Letter Agreement") with SBUK pursuant to which, within five
business days of the satisfaction of certain conditions set forth in the Letter
Agreement, MediaOne International (or its designee) is required to purchase from
SBUK up to 180,000,000 Telewest Ordinary Shares, subject to a minimum number
(the "Minimum Share Number") equal to the lesser of (a) 170,000,000 Telewest
Ordinary Shares and (b) the number of Telewest Ordinary Shares as shall be
available for SBUK to sell to MediaOne International following any exercise by
TINTA of its right of first refusal contained in the Relationship Agreement.
TINTA has not yet determined whether it will exercise this right. The Letter
Agreement further provides that the number of Telewest Ordinary Shares that SBUK
will sell to MediaOne International shall be equal to the lesser of (a) such

<PAGE>   11


number of Telewest Ordinary Shares as when aggregated with those held by
MediaOne (including its concert parties) would represent 29.9% of the voting
rights of Telewest (but in no event less than the Minimum Share Number) or (b)
all of the 180,000,000 Telewest Ordinary Shares or any lesser number of Telewest
Ordinary Shares as shall be available for SBUK to sell following any exercise by
TINTA of its right of first offer contained in the Relationship Agreement. The
Telewest Ordinary Shares which MediaOne International may acquire (subject to
the provisions described above) are referred to as the "SBC Sale Shares."
MediaOne has represented in its Schedule 13D dated September 21, 1998, filed
with the Securities and Exchange Commission (the "MediaOne Schedule 13D") that,
according to the provisional figures produced in connection with the Merger
Offer by J. Henry Schroder & Co., Ltd. London ("Schroders"), dated September 7,
1998, and aggregating the number of shares already treated as held by MediaOne,
the number of SBC Sale Shares that MediaOne International believes that it will
be entitled to acquire will be 178,077,333.

     The purchase of the SBC Sale Shares by MediaOne International is
conditioned upon, among other things:

     a.  (subject to Schroders  first  confirming to MediaOne the number of
         SBC Sale  Shares  which  MediaOne  is  entitled  to acquire  and
         MediaOne notifying SBC of that number) either SBC providing a waiver
         from TINTA in respect of the SBC Sale Shares  regarding the rights
         of first offer under  clause  9.1  of the  Relationship  Agreement
         or SBC  providing written notice to commence the procedures
         prescribed by clause 9.1 in respect of the SBC Sale  Shares and once
         completed  SBC being free to sell the SBC Sale Shares to MediaOne
         International  Holdings upon the terms set forth in the Letter
         Agreement;

     b.  the London  Takeover and Mergers  Panel (the  "Panel")  confirming
         by Friday,  September 25, 1998 that should  MediaOne International
         not acquire the whole of SBC's  shareholdings in  Telewest,  it will
         not treat SBC as acting in concert with MediaOne International  (such
         that SBC's residual shareholding would be aggregated with the
         shareholdings of MediaOne International and  its other concert
         parties so as to trigger a mandatory offer requirement under Rule 9
         of the City Code on Takeovers and Mergers);

     c.  the Panel confirming by Friday,  September 25, 1998 that MediaOne
         International will not be  entitled  or obliged to acquire any shares
         in the capital of Telewest the  acquisition of which would trigger
         a mandatory offer requirement under Rule 9 of the City Code on
         Takeovers and Mergers; and

     d.  compliance by Friday, September 25, 1998 by MediaOne International
         with all applicable US legal requirements including, without
         limitation, applicable United States Federal and State securities
         laws.

     If TINTA decides to exercise its right of first refusal pursuant to the
Relationship Agreement, SBUK must enter into negotiations with TINTA and
MediaOne to determine a price and proportion for the sale of such shares to
TINTA and MediaOne. TINTA has not yet decided whether it will exercise or waive
such right.

     The foregoing description of the Letter Agreement is a summary thereof and
does not purport to be complete. The full text of the Letter Agreement is
attached hereto as Exhibit (10) and in incorporated herein by reference.

     Subject to the restrictions contained in the Operating Agreement, the
Relationship Agreement and the Articles of Association, TCI may acquire
additional Telewest Ordinary Shares or dispose of Telewest Ordinary Shares at
any time and from time to time through open market transactions, privately
negotiated transactions or otherwise, the effect of which could have one or more
of the results described in subparagraphs (a) through (j) of Item 4 of Schedule
13D. It should be noted that there are no assurances that TCI would engage in
any such transaction.



<PAGE>   12


Item 5. Interest in Securities of the Issuer.

     (a)-(b) As of consummation of the Pre-emptive Issue, the conversion
referred to above and the Merger Offer, TCI and its affiliates beneficially
owned 463,438,961 Telewest Ordinary Shares or 20.06% of the outstanding Telewest
Ordinary Shares. According to the MediaOne Schedule 13D, MediaOne beneficially
owns 463,438,960 Ordinary Shares or 20.06% of the outstanding Telewest Ordinary
Shares, and of those 463,438,960 shares, 409,009,895 shares and 39,088,695
shares are held of record by UK Cable and Cable Partnership, respectively, and
15,340,370 shares are held of record by TW Holdings. The 15,340,370 shares held
of record by TW Holdings are attributed to TCI due to its 50% interest in TW
Holdings, its right to have those shares distributed to TCI and certain other
voting arrangements discussed above with respect thereto. All of the shares
beneficially owned by both TINTA and MediaOne are beneficially owned by TW
Holdings, which in turn is owned 50% by TINTA and 50% by MediaOne. The filing of
this Schedule 13D shall not be construed as an admission by TCI that it is, for
the purposes of Section 13(d) of the Exchange Act, the beneficial owner of the
Telewest Ordinary Shares beneficially owned by MediaOne.

     To the best knowledge of TCI, no Telewest Ordinary Shares are beneficially
owned by any of the persons set forth in Item 2 - "Directors, Executive Officers
and Controlling Persons of Tele-Communications, Inc.," except for such
beneficial ownership, if any, arising solely from the Relationship Agreement and
Operating Agreement or in such person's capacity as an officer or director of
TCI.

     (c) Neither TCI nor, to the best knowledge of TCI, any person set forth in
the "Directors and Executive Officers and Controlling Persons of
Tele-Communications, Inc." portion of Item 2, has effected any transaction in
Telewest Ordinary Shares during the past 60 days, except as disclosed herein.

     (d) Not applicable.

     (e) Not applicable.

Item 6. Contracts, Arrangements, Understandings or Relationships with Respect to
        Securities of the Issuer.

     If Telewest intends to issue shares or other securities convertible into or
exchangeable for shares or having voting rights and such issuance would reduce
the shares owned by the TINTA Group, the MediaOne Group, TW Holdings or the Cox
Group (as defined in the Relationship Agreement) below the applicable Percentage
Ownership (as defined in the Relationship Agreement), Telewest is required to
give notice to those shareholders if they meet the share ownership thresholds
established by the Relationship Agreement prior to such issuance. Each such
shareholder then has the right to subscribe for that number of shares which will
prevent dilution of its shareholding below certain percentages stated in the
Relationship Agreement.

     Other than as described in Items 4 and 5 above and in the preceding
paragraph, to the best knowledge of TCI there are no contracts, arrangements,
understandings or relationships (legal or otherwise) among the persons named in
Item 2 and between such persons and any person with respect to any securities of
Telewest, including, but not limited to, transfer or voting of any securities,
finder's fees, joint ventures, loan or option arrangements, puts or calls,
guarantees of profits, division of profits or loss, of the giving or withholding
of proxies.


<PAGE>   13

Item 7. Material to be Filed as Exhibits.

Exhibit No.          Description

     (1)  Disclosure Document of Telewest, dated June 29, 1998. (A)

     (2)  Offer to Purchase/Prospectus of Telewest, dated June 29, 1998. (A)

     (3)  Prospectus Supplement issued by Telewest dated August 20, 1998. (B)

     (4)  Amended and Restated Relationship Agreement, made as of April 15,
          1998, between MediaOne International Holdings, Inc., MediaOne UK
          Cable, Inc., MediaOne Cable Partnership Holdings, Inc.,
          Tele-Communications International, Inc., United Artists
          Programming-Europe, Inc., Cox Communications, Inc., Cox U.K.
          Communications, L.P., SBC International, Inc., Southwestern Bell
          International Holdings (UK-1) Corporation and Telewest Communications
          plc. (A)

     (5)  Form of Amended  and  Restated  Operating  Agreement  of TW  Holdings,
          L.L.C. (C)

     (6)  Registration  Rights Agreement,  dated October 3, 1995, among Telewest
          and the other parties references  therein.  (Incorporated by reference
          to Telewest's Annual Report on Form 10-K filed with the Securities and
          Exchange Commission on April 1, 1996.)

     (7)  Form of Amendment No. 1 to the Registration Rights Agreement, dated as
          of June 29,  1998,  among  Telewest and the other  parties  referenced
          therein. (A)

     (8)  Form of amended and restated Articles of Association of Telewest. (A)

     (9)  Form  of  Contribution  Agreement  among  United Artists Programming -
          Europe, Inc. and the other parties thereto. (C)

     (10) Letter   Agreement,   dated  September  10,  1998,   between  MediaOne
          International  Holdings,  Inc.  and  Southwestern  Bell  International
          Holdings (UK-1) Corporation. (C)

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

(A)  Incorporated  by  reference  to the  Registration  Statement on Form S-4 of
     Telewest (File No. 333-50201).

(B)  Incorporated by reference to Amendment No. 4 to the Schedule 14D-1 filed by
     Telewest and others  with  respect to General  Cable on August 21, 1998.

(C)  Filed herewith.
<PAGE>   14
     After  reasonable  inquiry  and to the best  knowledge  and  belief  of the
undersigned,  the  undersigned  certifies that the information set forth in this
statement is true, complete and correct.

Date: October 22, 1998

                             TELE-COMMUNICATIONS, INC.

                             By:
                                     /s/ Stephen M. Brett
                                    Name:  Stephen M. Brett
                                    Title  Executive Vice President/Secretary


<PAGE>   15

                                  EXHIBIT INDEX

Exhibit No.          Description

     (1)  Disclosure Document of Telewest, dated June 29, 1998. (A)

     (2)  Offer to Purchase/Prospectus of Telewest, dated June 29, 1998. (A)

     (3)  Prospectus Supplement issued by Telewest dated August 20, 1998. (B)

     (4)  Amended and Restated Relationship Agreement, made as of April 15,
          1998, between MediaOne International Holdings, Inc., MediaOne UK
          Cable, Inc., MediaOne Cable Partnership Holdings, Inc.,
          Tele-Communications International, Inc., United Artists
          Programming-Europe, Inc., Cox Communications, Inc., Cox U.K.
          Communications, L.P., SBC International, Inc., Southwestern Bell
          International Holdings (UK-1) Corporation and Telewest Communications
          plc. (A)

     (5)  Form of Amended  and  Restated  Operating  Agreement  of TW  Holdings,
          L.L.C. (C)

     (6)  Registration  Rights Agreement,  dated October 3, 1995, among Telewest
          and the other parties references  therein.  (Incorporated by reference
          to Telewest's Annual Report on Form 10-K filed with the Securities and
          Exchange Commission on April 1, 1996.)

     (7)  Form of Amendment No. 1 to the Registration Rights Agreement, dated as
          of June 29,  1998,  among  Telewest and the other  parties  referenced
          therein. (A)

     (8)  Form of amended and restated Articles of Association of Telewest. (A)

     (9)  Form  of  Contribution  Agreement  among  United Artists Programming -
          Europe, Inc. and the other parties thereto. (C)

     (10) Letter   Agreement,   dated  September  10,  1998,   between  MediaOne
          International  Holdings,  Inc.  and  Southwestern  Bell  International
          Holdings (UK-1) Corporation. (C)

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

(A)  Incorporated  by  reference  to the  Registration  Statement on form S-4 of
     Telewest (File No. 333-90201).

(B)  Incorporated by reference to Amendment No. 4 to the Schedule 14D-1 filed by
     Telewest and  MediaOne  (among  others)  with  respect to General  Cable on
     August 21, 1998.

(C)  Filed herewith.

 


<PAGE>   1
                                                                     EXHIBIT (5)




                              AMENDED AND RESTATED
                               OPERATING AGREEMENT



                                       OF



                               TW HOLDINGS, L.L.C.





                               September 11, 1998

<PAGE>   2

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                               Page
<S>             <C>                                                                                           <C>

ARTICLE  1:  FORMATION  AND  DEFINITIONS..........................................................................1
                1.1  Formation....................................................................................1
                1.2  Company Name.................................................................................1
                1.3  Office and Agent.............................................................................2
                1.4  Foreign Qualification........................................................................2
                1.5  Term  .......................................................................................2
                1.6  Definitions..................................................................................2

ARTICLE  2:  PURPOSES AND POWERS..................................................................................9
                2.1  Purpose......................................................................................9
                2.2  Powers......................................................................................10

ARTICLE  3:  MEMBERS; MANAGEMENT; VOTING ........................................................................11
                3.1  Admission of Transferees as Members.........................................................11
                3.2  Managing Directors..........................................................................11
                3.3  Board Vote..................................................................................11
                3.4  Unanimous Vote..............................................................................11
                3.5  Expense Reimbursement; Indemnification......................................................12
                3.6  No Resignation or Retirement................................................................12

ARTICLE  4:  CAPITAL  AND  CAPITAL ACCOUNTS......................................................................12
                4.1  Maintenance.................................................................................12
                4.2  Revaluation.................................................................................13
                4.3  Contributions; Ownership Interests..........................................................13
                4.4  Additional Contributions....................................................................13
                4.5  No Withdrawal of Capital....................................................................14
                4.6  No Interest on Capital......................................................................14
                4.7  No Drawing Accounts.........................................................................14
                4.8  Transfers of Capital Accounts...............................................................14

ARTICLE  5:  ALLOCATION  OF  PROFITS  AND  LOSSES................................................................14
                5.1  Profits and Losses..........................................................................14
                5.2  General Allocation Rule.....................................................................15
                5.3  Exception...................................................................................15
                5.4  Tax Allocations.............................................................................15
                5.5  Transfer....................................................................................15
                5.6  Contributed and Revalued Property...........................................................15
                5.7  Tax Credits.................................................................................16

ARTICLE  6:  DISTRIBUTIONS.......................................................................................16
                6.1  Net Cash....................................................................................16
</TABLE>


                                        i

<PAGE>   3
<TABLE>
<CAPTION>
                                                                                                               Page
<S>             <C>                                                                                           <C>
                6.2  Liquidating Distributions...................................................................16
                6.3  Payment.....................................................................................17
                6.4  Withholding.................................................................................17
                6.5  In Kind Distributions.......................................................................17
                6.6  Distribution Limitation.....................................................................17

ARTICLE  7:  MANAGING DIRECTORS..................................................................................17
                7.1  Annual Meeting..............................................................................17
                7.2  Special Meetings............................................................................18
                7.3  Place ......................................................................................18
                7.4  Notice......................................................................................18
                7.5  Waiver of Notice............................................................................18
                7.6  Meetings by Telephone.......................................................................18
                7.7  Action Without a Meeting....................................................................18
                7.8  Certain Conflicts...........................................................................18
                7.9  Resolution of Disagreements.................................................................19
                7.10  Termination of Voting Arrangements.........................................................19

ARTICLE  8:  LIABILITY  OF  MEMBERS..............................................................................19
                8.1  Limited Liability...........................................................................19
                8.2  Capital Contribution........................................................................19

ARTICLE  9:  Intentionally Omitted...............................................................................20

ARTICLE  10:  ACCOUNTING  AND  REPORTING.........................................................................20
                10.1  Fiscal Year................................................................................20
                10.2  Accounting Method..........................................................................20
                10.3 Tax Returns.................................................................................20
                10.4  Reports....................................................................................20
                10.5  Banking....................................................................................20

ARTICLE  11:  TRANSFER RESTRICTIONS..............................................................................20
                11.1  General Restriction........................................................................20
                11.2  No Member Rights...........................................................................20
                11.3  Permitted Transferees......................................................................21
                11.4  Transfer Restrictions Lasting Through 1999.................................................21
                11.5  Rights of First Refusal....................................................................21
                11.6  Change in Control of a Shareholder Group...................................................23
                11.7  General Conditions on Transfers............................................................24
                11.8  Rights of Transferees......................................................................24
                11.9  Admission..................................................................................25
                11.10      Satisfaction of Legal Requirements....................................................25
                11.11      Closing...............................................................................25
                11.12      Events of Withdrawal..................................................................25
                11.13  Obligation to Contribute Additional Shares to Company.....................................26
</TABLE>

                                       ii

<PAGE>   4
<TABLE>
<CAPTION>
                                                                                                               Page
<S>             <C>                                                                                           <C>
                11.14      Covenant Relating to Rule 9 of City Code..............................................26

ARTICLE  12:  DISSOLUTION  OF  THE  COMPANY......................................................................26
                12.1       Dissolution...........................................................................26
                12.2       Exclusive Means of Dissolution........................................................27

ARTICLE  13:  LIQUIDATION........................................................................................27
                13.1       Liquidation...........................................................................27
                13.2       Priority of Payment...................................................................27
                13.3       Distribution to Members...............................................................28
                13.4       Deficit Capital Account...............................................................28
                13.5       Liquidating Reports...................................................................28
                13.6       Articles of Dissolution...............................................................28

ARTICLE  14:  GENERAL  PROVISIONS................................................................................29
                14.1       Amendment.............................................................................29
                14.2       Unregistered Interests................................................................29
                14.3       Reliance..............................................................................29
                14.4       Equitable Relief......................................................................29
                14.5       Specific Performance..................................................................30
                14.6       Counterparts..........................................................................30
                14.7       Notices...............................................................................30
                14.8       Deemed Notice.........................................................................30
                14.9       Waivers Generally.....................................................................30
                14.10      Partial Invalidity....................................................................30
                14.11      Entire Agreement......................................................................31
                14.12      No Third Party Benefit................................................................31
                14.13      Binding Effect........................................................................31
                14.14      Further Assurances....................................................................31
                14.15      Headings..............................................................................31
                14.16      Terms.................................................................................31
                14.17      Governing Law.........................................................................31
                14.18      Restrictive Trade Practices Act.......................................................31
</TABLE>


                                       iii

<PAGE>   5

                              AMENDED AND RESTATED
                               OPERATING AGREEMENT

                                       OF

                               TW HOLDINGS, L.L.C.


This AMENDED AND RESTATED OPERATING AGREEMENT is made as of September 11, 1998
by the members of TW HOLDINGS, L.L.C., a Colorado limited liability company (the
"Company").

                                    RECITALS

         WHEREAS, United Artists Programming-Europe, Inc. ("UAPE"), MediaOne UK
Cable, Inc., formerly named U S WEST UK Cable, Inc. ("MediaOne UK"), and
MediaOne Cable Partnership Holdings, Inc., formerly named U S WEST Cable
Partnership Holdings, Inc. ("MediaOne Cable"), the members of the Company
(collectively, the "Members"), entered into an Operating Agreement for the
Company dated as of June 16, 1995 (the "Original Agreement");

         WHEREAS, on the date of this Agreement [a] Cox U.K. Communications,
L.P. (the "Cox Shareholder") will sell and assign to the Company certain
ordinary shares of Telewest Communications plc owned by it (other than the
economic benefits associated with such shares, which will be retained by the Cox
Shareholder), [b] the Members will make cash contributions to the Company to
fund the purchase of additional ordinary shares of Telewest Communications plc
and [c] the Members will purchase additional ordinary shares of Telewest
Communications plc, the beneficial interests in which they will contribute to
the Company; and

         WHEREAS, the Members have determined that it is in their best interests
to amend and restate the Original Agreement as set forth herein.

         NOW, THEREFORE, in consideration of their mutual promises, the Members
agree as follows:


ARTICLE  1:  FORMATION  AND  DEFINITIONS

1.1 FORMATION. The Company was formed on June 16, 1995 by filing Articles with
the Colorado Secretary of State pursuant to the Act.

1.2 COMPANY NAME. The business of the Company will be conducted under the name
"TW Holdings, L.L.C." or any other name determined from time to time by the
Board in accordance with applicable law.


<PAGE>   6


1.3 OFFICE AND AGENT. The registered office of the Company in Colorado is at
5619 DTC Parkway, Englewood, Colorado 80111, and its registered agent is Stephen
M. Brett. The Company may subsequently change its registered office or
registered agent in Colorado in accordance with the Act.

1.4 FOREIGN QUALIFICATION. The Company will apply for a certificate of authority
to do business in any other jurisdiction where such authority is required.

1.5 TERM. The Company began on the date its Articles were filed with the
Colorado Secretary of State and will continue until its Dissolution.

1.6 DEFINITIONS. The following capitalized terms, when used in this Agreement,
have the meanings set forth below:

Act:                          the Colorado Limited Liability Company Act, as
                              amended from time to time.

Additional Contribution:      a capital contribution (other than the Initial
                              Contributions) that a Member makes to the Company,
                              as described in Section 4.4.

Affiliate:                    with respect to any Person, any other Person 
                              directly or indirectly Controlling, directly or
                              indirectly Controlled by or under direct or
                              indirect common Control with such Person.

Agreement:                    this Amended and Restated Operating Agreement, as
                              amended from time to time.

Articles:                     the articles of organization of the Company filed
                              under the Act, as amended from time to time.

Bankruptcy:                   of a Member will be deemed to occur when such
                              Member [a] files a voluntary petition in
                              bankruptcy, [b] is adjudged bankrupt or insolvent
                              or has entered against such Member an order for
                              relief in any bankruptcy or insolvency proceeding,
                              [c] files a petition or answer seeking for such
                              Member any reorganization, arrangement,
                              composition, readjustment, liquidation,
                              dissolution or similar relief under any statute,
                              law or regulation, [d] files an answer or other
                              pleading admitting or failing to

                                      -2-
<PAGE>   7
                              contest the material allegations of a petition
                              filed against such Member in any proceeding of
                              that nature or [e] seeks, consents to or
                              acquiesces in the appointment of a trustee,
                              receiver or liquidator of all or any substantial
                              part of such Member's property.

Board:                        as defined in Section 3.2.

Capital Account:              the book capital account to be established and
                              maintained for each Member in accordance with this
                              Agreement.

Capital Contribution:         any contribution by a Member to the Company which
                              is either an Initial Contribution or an Additional
                              Contribution.

Change in Control:            with respect to MediaOne International Holdings,
                              Inc., formerly named U S WEST International
                              Holdings, Inc. ("MediaOne Holdings"), and its
                              Affiliates (other than MediaOne) or TINTA and its
                              Affiliates (other than TCI), the acquisition
                              (whether by merger, consolidation, sale,
                              assignment, lease, transfer or otherwise, in one
                              transaction or any related series of transactions)
                              of beneficial ownership by any Person (other than
                              pursuant to a distribution in specie, spin off,
                              share dividend, demerger or similar transaction
                              and other than, with respect to beneficial
                              ownership of equity interests in TINTA or any of
                              its Affiliates, by TINTA or any of its Affiliates
                              and, with respect to beneficial ownership of
                              equity interests in MediaOne Holdings or any of
                              its Affiliates, by MediaOne Holdings or any of its
                              Affiliates) of equity interests in MediaOne
                              Holdings and/or any of its Affiliates (other than
                              MediaOne) or TINTA and/or any of its Affiliates
                              (other than TCI), as the case may be, as a result
                              of which such Person has the power, directly or
                              indirectly, to direct the voting and disposition
                              of Ordinary Shares held by TINTA and its
                              Affiliates or MediaOne Holdings and its
                              Affiliates, as the case may be, representing at
                              least 15% of the outstanding Ordinary Shares of
                              Telewest. For purposes of this definition, a

                                      -3-


<PAGE>   8

                              Member shall be deemed to control the voting and
                              disposition of such Member's Pro Rata Shares. A
                              Change in Control shall be deemed voluntary if it
                              is the result of a transaction agreed to by TINTA
                              or any of its Affiliates or MediaOne Holdings or
                              any of its Affiliates, as the case may be. A
                              Change in Control shall be deemed involuntary if
                              it is the result of actions by Persons (other than
                              TINTA or any of its Affiliates or MediaOne
                              Holdings or any of its Affiliates, as the case may
                              be) taken without the agreement or consent of
                              TINTA or any of its Affiliates or MediaOne
                              Holdings or any of its Affiliates, as the case may
                              be.

Closing Price:                [a] with respect to Ordinary Shares to be offered 
                              on the London Stock Exchange, will be the sale
                              price which appears on the relevant Reuters Screen
                              No. for Telewest as of 11:00 a.m. (London time) on
                              a Trading Day, provided that if such Ordinary
                              Shares do not appear on such Reuters Screen or
                              such Reuters Screen is temporarily unavailable,
                              the sale price with respect to the Ordinary Shares
                              will be the last reported sale price which appears
                              in the Official List of the London Stock Exchange
                              on a Trading Day and [b] with respect to Ordinary
                              Shares to be offered on the New York Stock
                              Exchange or another U.S. national securities
                              exchange in the form of ADSs, will be the last
                              reported sale price on a Trading Day on such
                              exchange or, if no such sale takes place on such
                              day, the average of the high and low sales prices
                              for such day as reported on the New York Stock
                              Exchange Composite Tape, or, if no such sales are
                              reported, the reported last sale price (or, if no
                              such sale takes place on such day, the average of
                              the reported closing bid and asked prices), on the
                              Nasdaq National Market, or if the ADSs are not
                              quoted on such National Market, the average of the
                              closing bid and asked prices in the
                              over-the-counter market as furnished by any New
                              York Stock Exchange member firm selected by the
                              Board for that purpose.


                                      -4-
<PAGE>   9




Code:                         the Internal Revenue Code of 1986, as amended 
                              from time to time (including corresponding
                              provisions of subsequent revenue laws).

Contribution Agreement:       the Contribution Agreement dated as of April 15,
                              1998 among the Members and the Company.

Control:                      with respect to any Person, the possession, 
                              directly or indirectly, of the power to direct or
                              cause the direction of the management or policies
                              of the Controlled Person, whether through equity
                              ownership, by contract or otherwise, but a Person
                              shall not be deemed to Control another Person
                              solely by virtue of any veto rights granted to it
                              as a minority equity owner or by virtue of super
                              majority voting rights.

Dissolution:                  the change in the relationship of the Members 
                              caused by the occurrence of an event described in
                              Section 12.1.

Distribution:                 a distribution of money or other property made by 
                              the Company with respect to an Ownership Interest.

Event of Withdrawal:          the occurrence of an event which terminates a
                              Member's membership in the Company, as provided in
                              Section 11.12.

Fair Market Value:            as to any Property, the price at which a
                              willing seller would sell and a willing buyer
                              would buy such property having full knowledge of
                              the facts, in an arm's-length transaction without
                              time constraints, and without being under any
                              compulsion to buy or sell.

Fiscal Year:                  the fiscal and taxable year of the Company as
                              determined under this Agreement, including both
                              12- month and short taxable years.

Initial Contribution:         the initial capital contribution made by each 
                              Member to the Company, as set forth on EXHIBIT A.


                                      -5-
<PAGE>   10




Liquidation:                  the process of terminating the Company and 
                              winding up its business under Article 13 after its
                              Dissolution.

Losses:                       the Company's net loss (including deductions) for
                              any Fiscal Year, determined under Section 5.1.

Managing Director:            as defined in Section 3.2.

MediaOne:                     MediaOne Group, Inc., a Delaware corporation 
                              formerly named U S WEST, Inc., and its successors,
                              whether by merger or otherwise.

MediaOne Directors:           as defined in Section 3.2.

MediaOne Shareholder:         MediaOne UK or MediaOne Cable.

MediaOne Shareholder Group:   each MediaOne Shareholder and any member of the
                              group consisting of MediaOne and its Affiliates to
                              whom Ownership Interests or Shares originally
                              issued to a MediaOne Shareholder are Transferred
                              in accordance with this Agreement or the
                              Relationship Agreement.

Member:                       a Person who is a Member on the date of this
                              Agreement or who is subsequently admitted as a
                              Member as provided in this Agreement.

Member Group:                 all of the Members included in any Shareholder
                              Group.

Net Cash:                     cash receipts of the Company less payment of, or
                              reasonable reserves for, operating expenses,
                              capital requirements, improvements, debt service,
                              and other cash requirements of the Company as
                              determined by the Board.

Ordinary Share:               an ordinary share, 10p par value (including 
                              ordinary shares represented by American Depository
                              Shares), in the capital of Telewest, or any other
                              shares of capital stock issued in substitution or
                              replacement thereof in any merger, share exchange,
                              recapitalization or other similar transaction.


                                      -6-
<PAGE>   11




Ownership Interest:           with respect to each Person owning an interest in 
                              the Company, all of the interests of such Person
                              in the Company (including, without limitation, an
                              interest in the Profits and Losses, a Capital
                              Account interest and all other rights and
                              obligations of such Person under this Agreement)
                              in the percentages set forth on EXHIBIT A, as the
                              same may be amended from time to time in
                              accordance with this Agreement.

Permitted Transferee:         a Person described in Section 11.3 to whom an
                              Ownership Interest may be Transferred without the
                              Transferor offering the other Member Group a right
                              of first refusal under this Agreement.

Person:                       an individual, corporation, trust, partnership, 
                              limited liability company, unincorporated
                              organization, association or other entity.

Pro Rata Shares:              with respect to any Member, a portion of the 
                              number of Shares owned by the Company attributable
                              to such Member's Ownership Interest, which will
                              equal the product of [x] the aggregate number of
                              Shares owned by the Company (except those Shares
                              in which the Cox Shareholder owns an economic
                              interest pursuant to the Amended and Restated
                              Co-Ownership Deed between the Company and the Cox
                              Shareholder dated as of the date of this
                              Agreement) multiplied by [y] such Member's
                              percentage Ownership Interest in the Company,
                              expressed as a decimal.

Profits:                      the Company's net profit (including income and
                              gains) for any Fiscal Year, determined under
                              Section 5.1.

Related Transfer:             a Transfer by means of a distribution, spin-off, 
                              stock dividend or other transaction as a result of
                              which one or more Affiliates of the transferor
                              beneficially own 80% or more of the Pro Rata
                              Shares that immediately prior to such Transfer
                              were beneficially owned by the Shareholder Group
                              of which the transferor is a member.


                                      -7-
<PAGE>   12




Relationship Agreement:       the Amended and Restated Relationship Agreement
                              dated as of April 15, 1998 among Telewest, the TCI
                              Shareholder, the MediaOne Shareholders and other
                              parties.

Shareholder:                  the TCI Shareholder, each MediaOne Shareholder
                              and any other Person who acquires Shares in
                              accordance with this Agreement or the Relationship
                              Agreement and becomes a party to, or otherwise
                              agrees to be bound by, the Relationship Agreement
                              subsequent to the date hereof by signing a
                              counterpart of the Relationship Agreement or
                              another document to the same effect.

Shareholder Group:            the TCI Shareholder Group or the MediaOne
                              Shareholder Group.

Shares:                       [a] Ordinary Shares and [b] convertible preference
                              shares, 10p par value per share, of Telewest (or
                              any other shares of capital stock issued in
                              substitution or replacement thereof in any merger,
                              share exchange, recapitalization, scheme of
                              arrangement or other similar transaction). In
                              calculating the percentage ownership of Shares for
                              purposes of this Agreement, a holder of Shares
                              will be deemed to own the number of Ordinary
                              Shares into which its convertible preference
                              shares are then convertible, without regard to any
                              prohibition or restriction on conversion.

TCI:                          Tele-Communications, Inc., a Delaware corporation,
                              and its successors, whether by merger or
                              otherwise.

TCI Directors:                as defined in Section 3.2.

TCI Shareholder:              United Artists Programming - Europe, Inc.

TCI Shareholder Group:        the TCI Shareholder and any member of the group 
                              consisting of TCI and its Affiliates to whom
                              Ownership Interests or Shares originally issued to
                              the TCI Shareholder are Transferred in accordance
                              with this Agreement or the Relationship Agreement.


                                      -8-
<PAGE>   13




Telewest:                     Telewest Communications plc, a public limited
                              company organized under the laws of England and
                              Wales, and its successors and assigns, whether by
                              merger, scheme of arrangement or otherwise.

Third Party:                  with respect to any Member, a Person other than an
                              Affiliate of such Member.

Third Party Offer:            a bona fide, non-collusive, binding, arms'-length
                              written offer to purchase from a Third Party with
                              the purchase price stated in terms of U.S. dollars
                              or English pounds sterling.

Trading Day:                  each Monday, Tuesday, Wednesday, Thursday and
                              Friday, other than any day on which securities are
                              not traded on the applicable exchange or market.

Transfer:                     a sale, exchange, assignment, transfer, pledge or 
                              other disposition, whether voluntary or by
                              operation of law.

Transferee:                   a Person to whom an Ownership Interest is
                              Transferred in compliance with this Agreement.

Transferor:                   a Person who Transfers an Ownership Interest in
                              compliance with this Agreement.

Vote:                         the action of the Company by its Members or the
                              Board, either in meeting assembled or by written
                              consent without a meeting.


ARTICLE  2:  PURPOSES AND POWERS

2.1 PURPOSE. The purpose of the Company shall be to own the Shares contributed
to it by the Members, to acquire further Shares in accordance with the terms of
this Agreement and the Contribution Agreement and to vote, dispose and otherwise
take actions in respect of the Shares owned by the Company in accordance with
the terms of this Agreement. The Company shall be permitted to conduct such
lawful business [a] as may be necessary or appropriate to give full effect to
the foregoing purpose and to all of the provisions of this Agreement and [b] as
may be consented to by the unanimous Vote of the Members.


                                      -9-
<PAGE>   14




2.2 POWERS. The Company shall have any and all powers necessary or desirable to
carry out the purpose and business of the Company to the extent the same may be
legally exercised by limited liability companies under the Act. Without limiting
the foregoing, and subject to the other provisions of this Agreement, the
purposes of the Company may be accomplished through the following powers (which
are not exclusive):

[a]             to acquire, hold, transfer, distribute, or otherwise dispose of
                Company assets (or rights or interests in such property);

[b]             to enter into any contracts or agreements concerning the assets 
                of the Company;

[c]             to execute and deliver all instruments, including proxies,
                assignments, and other documents of transfer, as may be
                necessary or advisable for the administration of the Company;

[d]             to hold the assets of the Company in the name of a nominee;

[e]             to vote securities, exercise rights, and pay calls and 
                assessments;

[f]             to settle claims and take or defend judicial and administrative
                proceedings:

[g]             to employ agents and independent contractors as may be necessary
                or advisable for the administration of the Company;

[h]             to establish reserves for taxes, assessments, insurance
                premiums, repairs, maintenance, improvements, depreciation,
                depletion and obsolescence out of the rents, profits or other
                income received;

[i]             to pay all expenses reasonably incurred in the administration of
                the Company; and

[j]             to do such other things and engage in such other activities
                related directly or indirectly to the foregoing as may be
                necessary, convenient or advisable to the conduct of the
                business of the Company.


                                      -10-

<PAGE>   15




ARTICLE  3:  MEMBERS; MANAGEMENT; VOTING

3.1 ADMISSION OF TRANSFEREES AS MEMBERS. A Transferee shall be admitted as a
Member of the Company only upon the affirmative unanimous Vote of Members,
except that a Transferee which is an Affiliate of a Member shall automatically
be admitted as a Member, subject to compliance with Section 11.7, without any
action on the part of the other Members.

3.2 MANAGING DIRECTORS. Except as specifically set forth in Section 3.4, the
management and policy-making functions of the Company shall reside in a board
(the "Board") composed of four individuals (each, a "Managing Director") to be
elected annually and who shall serve until their successors are elected and
qualified. Such Managing Directors shall be elected by unanimous Vote of the
Members. Members included in the TCI Shareholder Group shall be entitled to
nominate two Managing Directors ("TCI Directors") and Members included in the
MediaOne Shareholder Group shall be entitled to nominate the other two Managing
Directors ("MediaOne Directors"). Each Member agrees to Vote all of its
Ownership Interest in any election of Managing Directors in favor of the Persons
nominated in accordance with the preceding sentence. Upon the occurrence of a
vacancy in the Board, the Member who nominated the Managing Director in respect
of whom such vacancy exists may nominate a replacement, and the Members shall
Vote in favor of such replacement, who shall serve until such replacement
Managing Director's successor is elected.

3.3 BOARD VOTE. Except as set forth in Section 7.9 and except as provided in
Section 3.4 relating to a unanimous Vote of Members, all decisions by the
Company (including the incurrence of any liabilities by the Company other than
those related solely to the ownership of the Shares) will be made by the
affirmative Vote of a majority of the Managing Directors without regard to
vacancies.

3.4 UNANIMOUS VOTE. The following decisions or actions will require the
unanimous Vote of the Members: [a] the payment of compensation to any Member or
any Affiliate of a Member for services rendered to the Company, other than such
Member's share of Profits; [b] the approval of any voluntary Additional
Contribution as provided in Section 4.4 (except those required by the
Contribution Agreement or Section 11.13); [c] the making of any curative or
remedial ss. 704(c) allocation under Section 5.6; [d] the voluntary Dissolution
of the Company under Section 12.1; [e] any amendment of this Agreement; [f] the
sale, exchange or other disposition of any of the Shares, other than (i) a
Transfer permitted under Article 11 or a distribution of Pro Rata Shares to a
Member on or after December 31, 1999 as permitted by Section 6.5 and (ii) any
Transfer to the Cox Shareholder pursuant to the Amended and Restated
Co-Ownership Deed among Cox Communications, Inc., the Cox Shareholder, MediaOne
International Holdings, Inc., Tele-Communications International, Inc. and the

                                      -11-
<PAGE>   16

Company dated as of April 15, 1998; [g] any Distribution to a Member of its Pro
Rata Shares prior to December 31, 1999 pursuant to Section 6.5, except pursuant
to a Related Transfer; and [h] the admission of any new or substitute Member
except pursuant to the last sentence of Section 11.9.

3.5 EXPENSE REIMBURSEMENT; INDEMNIFICATION. Except as otherwise provided in this
Agreement, upon compliance with such policies and procedures as the Company may
from time to time adopt, the Members and the Managing Directors will be
reimbursed by the Company for all reasonable expenses incurred on behalf of the
Company in connection with its business. The Company will indemnify its Managing
Directors against liability incurred in any proceeding in which such Managing
Director is made a party because he or she is or was a manager of the Company to
the maximum extent permitted by the Act.

3.6 NO RESIGNATION OR RETIREMENT. Each Member agrees not to voluntarily resign
or retire from the Company, except for permissible Transfers as provided in
Article 11 and in connection with Pro Rata Share Distributions permitted by
Section 6.5. However, if such voluntary resignation or retirement occurs in
contravention of this Agreement, the withdrawing Member will, without further
act, become a Transferee of its entire Ownership Interest with the limited
rights of a Transferee who has not been admitted as a Member in accordance with
this Agreement, as set forth in Section 11.8.


ARTICLE  4:  CAPITAL AND CAPITAL ACCOUNTS

4.1 MAINTENANCE. A Capital Account will be maintained for each Member and
credited, charged and otherwise adjusted as follows:

[a]             Credited with [i] the amount of money contributed by the Member
                as an Initial Contribution or Additional Contribution, [ii] the
                Fair Market Value of Shares and other property contributed by
                the Member as an Initial Contribution or Additional Contribution
                (net of liabilities secured by such property that the Company
                takes subject to or assumes), [iii] the Member's allocable share
                of Profits and [iv] all other items properly credited to its
                Capital Account in accordance with U.S. generally accepted
                accounting principles consistently applied; and

[b]             Charged with [i] the amount of money distributed to the Member
                by the Company, [ii] the Fair Market Value of Shares and other
                property distributed to the Member by the Company (net of
                liabilities secured by such property that the Member takes
                subject


                                      -12-
<PAGE>   17




                to or assumes), [iii] the Member's allocable share of Losses and
                [iv] all other items properly charged to its Capital Account in
                accordance with U. S. generally accepted accounting principles
                consistently applied.

Any unrealized appreciation or depreciation with respect to any asset
distributed in kind will be allocated among the Members in accordance with the
provisions of Article 5 as though such asset had been sold for its Fair Market
Value on the date of Distribution, and the Members' Capital Accounts will be
adjusted to reflect both the deemed realization of such appreciation or
depreciation and the Distribution of such property.

4.2 REVALUATION. Upon a contribution of money, Shares or other property to the
Company by a new or continuing Member as consideration for an Ownership Interest
in the Company, and upon a Distribution of money, Shares or other property to a
retiring or existing Member in consideration of an Ownership Interest in the
Company that is being redeemed by the Company, the Capital Accounts of the
Members will be increased or decreased to reflect the Fair Market Value of the
assets of the Company as of the date of such contribution or Distribution.
Adjustments made pursuant to the preceding sentence will reflect the manner in
which any unrealized appreciation or depreciation with respect to the assets of
the Company (which appreciation or depreciation is not reflected in the Capital
Accounts as of the adjustment date) would be allocated among the Members if such
assets were sold at Fair Market Value on the adjustment date. Following any
adjustment under this Section 4.2, for purposes of computing Profits or Losses
of the Company, items of depreciation, amortization, depletion, gain or loss
relating to revalued property will be determined based upon the Fair Market
Value of such property at the adjustment date. For purposes of making any
adjustment pursuant to this Section 4.2, Fair Market Value shall be determined
by agreement of the Members or, if they cannot so agree within 7 days following
the date on which a contribution or Distribution is made, by following the
procedure set forth in Section 11.5[d].

4.3 CONTRIBUTIONS; OWNERSHIP INTERESTS. Each Member has made the Initial
Contribution to the Company as set forth opposite such Member's name on the
attached EXHIBIT A, and on the date of this Agreement is making the Additional
Contribution set forth opposite its name on EXHIBIT A. The Ownership Interests
of the Members as of the date of this Agreement are as set forth on EXHIBIT A.

4.4 ADDITIONAL CONTRIBUTIONS. Except as required by Section 11.13 or the
Contribution Agreement or upon the unanimous Vote of the Members, no Additional
Contribution by any Member will be required or permitted unless otherwise
required by law. If any Additional Contribution is made after the date of this
Agreement, EXHIBIT A will be amended to reflect the Additional Contribution and
any resulting change in the Ownership Interests of the Members. Upon the making


                                      -13-

<PAGE>   18

of an Additional Contribution by any Member or Members, the percentage Ownership
Interest of each Member will be adjusted (or, in the case of a Shareholder
admitted as a new Member under Section 11.13, determined) to equal the
percentage obtained by dividing the sum of [a] the Fair Market Value of the
assets of the Company less the liabilities of the Company immediately prior to
the Additional Contribution(s) ("Pre-Contribution Company Value"), multiplied by
that Member's percentage Ownership Interest in the Company immediately prior to
the Additional Contribution(s), plus [b] the Fair Market Value of that Member's
Additional Contribution, if any, on that date, by the sum of [y] the
Pre-Contribution Company Value plus [z] the Fair Market Value of all Members'
Additional Contributions on that date. For purposes of this Section 4.4, any
Shares contributed by a Shareholder admitted as a new Member under Section 11.13
shall be treated as an Additional Contribution by such Shareholder. In adjusting
or determining Ownership Interests pursuant to this Section 4.4, Fair Market
Value shall be determined by agreement of the Members or, if they cannot so
agree within 7 days following the date on which an Additional Contribution is
made to the Company, by following the procedure set forth in Section 11.5[d].

4.5 NO WITHDRAWAL OF CAPITAL. Except as specifically provided in Section 6.5, no
Member will be entitled to withdraw all or any part of such Member's capital
from the Company or, when such withdrawal of capital is permitted, to demand a
Distribution of property other than money.

4.6 NO INTEREST ON CAPITAL. No Member will be entitled to receive interest on
such Member's Capital Contributions or Capital Account.

4.7 NO DRAWING ACCOUNTS. The Company will not maintain a drawing account for any
Member. All Distributions to Members will be governed by Article 6 (relating to
Distributions) and by Article 13 (relating to Liquidation).

4.8 TRANSFERS OF CAPITAL ACCOUNTS. If all or any part of an Ownership Interest
is Transferred in accordance with this Agreement, the Capital Account of the
Transferor that is attributable to the Transferred Ownership Interest will carry
over to the Transferee.


ARTICLE  5:  ALLOCATION  OF  PROFITS  AND  LOSSES

5.1 PROFITS AND LOSSES. For each Fiscal Year, Profits or Losses of the Company
will be an amount equal to the Company's income or loss determined in accordance
with the accrual method of accounting and U.S. generally accepted accounting
principles consistently applied, except as otherwise provided in the last
sentence of Section 4.2.


                                      -14-
<PAGE>   19




5.2 GENERAL ALLOCATION RULE. Except as otherwise provided in (or until changed
pursuant to) this Agreement, the Profits or Losses of the Company, including
items of income, gain, loss and deduction for each Fiscal Year, will be
allocated to the Members in proportion to their respective Ownership Interests.

5.3 EXCEPTION. Notwithstanding the general rule on allocation of Losses stated
in Section 5.2, Losses of the Company attributable to any Member nonrecourse
liability (which is nonrecourse to the Company, but for which one or more
Members or a related party bears the economic risk of loss) will be allocated to
the Member or Members bearing the economic risk of loss for the liability. The
determination and allocation of deductions attributable to any Member
nonrecourse liability will be made in accordance with regulations promulgated
under ss. 752 of the Code and regulations promulgated under ss. 704(b) of the
Code. Similarly, notwithstanding the general rule on allocation of Profits, any
Profits of the Company will be determined and allocated to the Members in
accordance with the chargeback rules promulgated under ss. 704(b) of the Code
applying to nonrecourse debt minimum gain.

5.4 TAX ALLOCATIONS. Except as otherwise provided in Section 5.6, allocation of
items of income, gain, loss and deduction of the Company for federal income tax
purposes for a Fiscal Year will be allocated, as nearly as is practicable, in
accordance with the manner in which such items are reflected in the allocations
of Profits and Losses among the Members for such Fiscal Year. To the extent
possible, principles identical to those that apply to allocations for federal
income tax purposes will apply for state and local income tax purposes.

5.5 TRANSFER. If any Transfer of an Ownership Interest occurs during any Fiscal
Year, the books of the Company will be closed as of the effective date of the
Transfer. The Profits or Losses attributed to the period from the first day of
such Fiscal Year through the effective date of Transfer will be allocated to the
Transferor, and the Profits or Losses attributed to the period commencing on the
effective date of Transfer will be allocated to the Transferee. In lieu of an
interim closing of the books of the Company and with the agreement of the
Transferor and Transferee, the Company may agree to allocate Profits and Losses
for such Fiscal Year between the Transferor and Transferee based on a daily
proration of items for such Fiscal Year or any other reasonable method of
allocation (including an allocation of extraordinary Company items, as
determined by the Company, based on when such items are recognized for federal
income tax purposes).

5.6 CONTRIBUTED AND REVALUED PROPERTY. All items of income, gain, loss and
deduction with respect to property contributed (or deemed contributed) to the
Company or revalued under Section 4.2 will, solely for tax purposes, be
allocated among the Members so as to take into account the variation between the

                                      -15-
<PAGE>   20

tax basis of the property and its Fair Market Value at the time of contribution
or revaluation. For example, if there is built-in gain with respect to
contributed property, upon the Company's sale of that property the
pre-contribution taxable gain (as subsequently adjusted under the ss. 704(c)
Regulations during the period such property was held by the Company) would be
allocated to the contributing Member (and such pre-contribution gain would not
again create a Capital Account adjustment since the property was credited to
Capital Account upon contribution at its Fair Market Value). Except as limited
by the following sentence, the allocation of tax items with respect to ss.
704(c) property to Members not contributing such property will, to the extent
possible, be equal to the allocation of the corresponding book items made to
such noncontributing Members with respect to such property. If book allocations
of cost recovery deductions (such as amortization or depreciation) exceed the
tax allocations of those items so that the ceiling rule of the ss. 704(c)
Regulations applies, the Company will make curative allocations or remedial
allocations of tax items only upon the affirmative Vote of all Members. All tax
allocations made under this Section 5.6 will be made in accordance with ss.
704(c) of the Code and the ss. 704(c) Regulations.

5.7 TAX CREDITS. To the extent that the federal income tax basis of an asset is
allocated to the Members in accordance with the Regulations promulgated under
ss. 46 of the Code, any tax credit attributable to such tax basis will be
allocated to the Members in the same ratio as such tax basis. With respect to
any other tax credit, to the extent that a Company expenditure gives rise to an
allocation of loss or deduction, any tax credit attributable to such expenditure
will be allocated to the Members in the same ratio as such loss or deduction.
Consistent principles will apply in determining the Members' interests in tax
credits that arise from taxable or non-taxable receipts of the Company. All
allocations of tax credits will be made as of the time such credit arises. Any
recapture of a tax credit will, to the extent possible, be allocated to the
Members in the same manner as the tax credit was allocated to them.


ARTICLE  6:  DISTRIBUTIONS

6.1 NET CASH. Net Cash will be allocated and paid to the Members in proportion
to their Ownership Interests. Distributions of Net Cash will be made to the
Members at such times as the Members by unanimous Vote approve.

6.2 LIQUIDATING DISTRIBUTIONS. Upon the Liquidation of the Company following its
Dissolution, liquidating Distributions will be made to the Members as provided
in Article 13.


                                      -16-
<PAGE>   21




6.3 PAYMENT. Any Distribution will be made to a Member only if such Person owns
an Ownership Interest on the date of Distribution, as reflected on the books of
the Company.

6.4 WITHHOLDING. If required by the Code or by state or local law, the Company
will withhold any required amount from Distributions to a Member for payment to
the appropriate taxing authority. Any amount so withheld from a Member will be
treated as a Distribution by the Company to such Member. Each Member agrees to
timely file any agreement that is required by any taxing authority in order to
avoid any withholding obligation that otherwise would be imposed on the Company.

6.5 IN KIND DISTRIBUTIONS. Each Member is entitled to require the Company to
distribute such Member's Pro Rata Shares to it in whole or in part [a] at any
time prior to December 31, 1999 if the MediaOne Shareholders and the TCI
Shareholder so agree in writing, [b] at any time on or after December 31, 1999
if such Member so elects, without the consent of any other Person, and [c] at
any time pursuant to a Related Transfer. If the Company distributes Shares to
any Member who contributed Shares to the Company within seven years preceding
the date of such Distribution, the Company will, to the extent of any such
Shares then owned by the Company, distribute to such Member those Shares
originally contributed by such Member. The Company will maintain records
relating to contributed Shares in a manner sufficient to enable the Company to
identify the Member who contributed such Shares.

6.6 DISTRIBUTION LIMITATION. Notwithstanding any other provision of this
Agreement, the Company will not make any Distribution to the Members if, after
the Distribution, the liabilities of the Company (other than liabilities to
Members on account of their Ownership Interests) would exceed the Fair Market
Value of the Company's assets. With respect to any property subject to a
liability for which the recourse of creditors is limited to the specific
property, such property will be included in assets only to the extent the
property's Fair Market Value exceeds its associated liability, and such
liability will be excluded from the Company's liabilities.


ARTICLE  7:  MANAGING DIRECTORS

7.1 ANNUAL MEETING. The annual meeting of the Board will be held on the second
Tuesday of April in each year at 9:00 a.m. (local time) or at such other time as
determined by resolution of a majority of the Managing Directors (without regard
to any vacancies). The purpose of the annual meeting is to review the Company's
operations for the preceding Fiscal Year and to transact such business as may
come before the meeting.


                                      -17-
<PAGE>   22




7.2  SPECIAL MEETINGS.  Special meetings of the Board, for any purpose or 
purposes, may be called by any Managing Director.

7.3 PLACE. Unless otherwise agreed by the Board, or if no designation is made,
the place of meeting will be the Company's registered office in Colorado.

7.4 NOTICE. Notice of any meeting must be given not less than 5 days nor more
than 30 days before the date of the meeting. Such notice must state the place,
day and hour of the meeting and, in the case of a special meeting, the purpose
for which the meeting is called.

7.5 WAIVER OF NOTICE. Any Managing Director may waive, in writing, any notice
required to be given to such Managing Director, whether before or after the time
stated in such notice. Any Managing Director who signs minutes of action (or
written consent or agreement to action) will be deemed to have waived any
required notice with respect to such action.

7.6 MEETINGS BY TELEPHONE. The Managing Directors may participate in a meeting
by means of conference telephone or similar communications equipment by which
all Managing Directors participating in the meeting can hear each other at the
same time. Such participation will constitute presence in person at the meeting
and waiver of any required notice.

7.7 ACTION WITHOUT A MEETING. Any action required or permitted to be taken at a
meeting of the Board may be taken without a meeting if the action is evidenced
by one or more written consents describing the action taken, signed by at least
a majority of all of the Managing Directors (without regard to any vacancies).
Action so taken is effective when sufficient Managing Directors approving the
action have signed the consent, unless the consent specifies a later effective
date.

7.8 CERTAIN CONFLICTS. If any Member or any Affiliate of a Member has a conflict
of interest with respect to any matter on which the Company is to vote its
Shares, the Shares held by the Company shall be voted as follows: the Pro Rata
Shares of any Member who has such conflict, or of any Member which is an
Affiliate of such conflicted Person, shall be voted "abstain," and the remainder
of the Shares held by the Company shall be voted as designated by the Managing
Directors nominated by the Member that is not subject to such conflict. In
addition, the Company shall vote all its Shares in favor of candidates for
director of Telewest (or the removal of such director) which any Shareholder
Group is entitled to nominate (or remove) in accordance with Telewest's Articles
of Association or the Relationship Agreement.



                                      -18-
<PAGE>   23




7.9 RESOLUTION OF DISAGREEMENTS. All Shares shall be voted as the TCI Directors
and the MediaOne Directors agree. If the TCI Directors and the MediaOne
Directors cannot agree on any matter requiring a vote of the Shares within a
period of 10 days after the matter is first presented for decision, the matter
in dispute shall be referred to the Chief Executive Officers of the ultimate
parent companies of the TCI Shareholders and the MediaOne Shareholders (or other
representatives designated by them) and the Shares shall be voted on such matter
in accordance with the joint decision of such officers. If those officers cannot
agree on any matter presented to them prior to the earlier of the date the vote
is to be taken or five days after the matter is first submitted to them, the
Shares shall be voted in such manner that would be most likely to continue the
status quo, without materially increasing Telewest's financial obligations or
materially deviating from its approved budget and business plan.

7.10 TERMINATION OF VOTING ARRANGEMENTS. If at any time after December 31, 1999
the number of Pro Rata Shares attributable to either the TCI Member Group or the
MediaOne Member Group decreases (other than as a result of a Transfer permitted
by Section 11.3 or by Section 8.3 of the Relationship Agreement or as a result
of a Related Transfer) by a number of Ordinary Shares that is greater than
43,000,000, the other Member Group may elect, by notice to the Member Group
whose Pro Rata Shares have been so reduced, to terminate the provisions of
Section 7.9. After any such termination the members of the MediaOne Member Group
and the TCI Member Group may direct the Board as to the manner in which their
respective Pro Rata Shares are to be voted in their sole discretion, and any
Shares owned by the Company that are not Pro Rata Shares of any Member shall be
voted in the same way as the Pro Rata Shares of the Members are voted, in
proportion to the Members' respective Ownership Interests.


ARTICLE  8:  LIABILITY  OF  MEMBERS

8.1 LIMITED LIABILITY. Except as otherwise provided in the Act, the debts,
obligations and liabilities of the Company (whether arising in contract, tort or
otherwise) will be solely the debts, obligations and liabilities of the Company,
and no Member of the Company (including any Person who formerly held such
status) is liable or will be obligated personally for any such debt, obligation
or liability of the Company solely by reason of such status.

8.2 CAPITAL CONTRIBUTION. Each Member is liable to the Company for [a] the
Initial Contribution made under Section 4.3 and any Additional Contribution
required or agreed to be made under Section 4.4 and 11.13 and [b] any Capital
Contribution or Distribution that has been wrongfully or erroneously returned or
made to such Member in violation of the Act, the Articles or this Agreement.



                                      -19-
<PAGE>   24




ARTICLE  9:  INTENTIONALLY OMITTED


ARTICLE  10:  ACCOUNTING  AND  REPORTING

10.1 FISCAL YEAR. For income tax and accounting purposes, the Fiscal Year of the
Company will end on December 31 in each year (unless subsequently changed as
provided in the Code).

10.2 ACCOUNTING METHOD. For income tax and accounting purposes, the Company will
use the accrual method of accounting (unless otherwise required by the Code).

10.3 TAX RETURNS. The Company will cause the preparation and timely filing of
all tax returns required to be filed by the Company pursuant to the Code, as
well as all other tax returns required in any jurisdiction in which the Company
does business.

10.4 REPORTS. The Company books will be closed at the end of each Fiscal Year
and statements prepared showing the financial condition of the Company and its
Profits or Losses from operations. Copies of these statements will be given to
each Member. In addition, as soon as is practicable after the close of each
Fiscal Year, and in any event by March 31 following the end of each Fiscal Year,
the Company will provide each Member with all necessary tax reporting
information.

10.5 BANKING. The Company may establish one or more bank or financial accounts
and safe deposit boxes. The Company may authorize one or more individuals to
sign checks on and withdraw funds from such bank or financial accounts and to
have access to such safe deposit boxes, and may place such limitations and
restrictions on such authority as the Company deems advisable.


ARTICLE  11:  TRANSFER RESTRICTIONS

11.1 GENERAL RESTRICTION. No Person may Transfer all or any part of such
Person's Ownership Interest in any manner whatsoever except as permitted by this
Article 11, and in any case only if the requirements of Section 11.7 have been
satisfied. Any other Transfer of all or any part of an Ownership Interest is
null and void. The rights and obligations of any resigning Member or of any
Transferee of an Ownership Interest will be governed by the other provisions of
this Agreement.

11.2 NO MEMBER RIGHTS. Except as provided in Section 11.9, no Member has the
right or power to confer upon any Transferee the attributes of a Member in the
Company. Except as provided in Section 11.9, the Transferee of all or any part
of an Ownership Interest by operation of law does not, by virtue of such 
Transfer, succeed to any rights as a Member in the Company.

                                      -20-
<PAGE>   25

11.3  PERMITTED TRANSFEREES.  A Member may Transfer all or any part of such 
Member's Ownership Interest at any time:

[a]             to an Affiliate of such Member;

[b]             to another Member; and

[c]             to the Company.

11.4 TRANSFER RESTRICTIONS LASTING THROUGH 1999. No Member shall Transfer all or
a portion of its Ownership Interest on or before December 31, 1999 except
pursuant to Section 11.3 unless (i) the prior written consent of the other
Member Group is obtained, (ii) the other Member Group approves the identity of
the Transferee, which approval may be withheld in the sole discretion of such
other Member Group, and (iii) the Transferee (if such Transferee is an Affiliate
of either MediaOne or TCI) executes a counterpart of the Relationship Agreement
or another document to the same effect.

11.5  RIGHTS OF FIRST REFUSAL.

[a]             If a Member proposes to Transfer all or part of its Ownership 
                Interests to a Third Party or Parties after December 31, 1999
                (except pursuant to Section 11.3), the Member desiring to make
                the Transfer (for purposes of this Section 11.5 only, the
                "Offeror") shall first make a written offer (for purposes of
                this Section 11.5 only, the "Offer") to sell such Ownership
                Interest to the Members included in the other Member Group (for
                purposes of this Section 11.5 only, the "Offerees") on the same
                terms and conditions on which the Offeror proposes to Transfer
                the Ownership Interest to the Third Party or Parties. Such offer
                shall state the price and the other terms and conditions of the
                proposed Transfer and shall be accompanied by a copy of the
                offer from the proposed Transferee. The price as so determined
                or stated in the Offeror's notice shall be, for purposes of this
                Section 11.5 only, the "Offer Price." The Offeror, for so long
                as the Offer shall remain outstanding, shall not request, nor
                shall the Company be obligated to make, a distribution of Shares
                in an amount in excess of the number of Pro Rata Shares that
                such Offeror shall have the right to receive in respect of the
                Ownership Interest, if any, to be retained by such Offeror after
                giving effect to such proposed Transfer.

[b]             The Offerees shall have the right for a period of 30 days after
                receipt of the Offer to elect to purchase all, but not less than
                all, of the Ownership Interest offered at the Offer Price by 


                                      -21-

<PAGE>   26

                giving written notice of acceptance to the Offeror within that
                period. If the Offerees do not elect to purchase all the
                Ownership Interest offered, the Offeror may Transfer the offered
                Ownership Interest pursuant to the terms disclosed under Section
                11.5[a]. If the offered Ownership Interest is not Transferred
                within 90 days after the Offerees' option period expires, a new
                offer shall be made to the Offerees before any such Transfer is
                made.

[c]             If the Third Party's offer involves consideration other than 
                immediate payment of cash at closing, the Offerees may pay the
                Fair Market Value of such other consideration, as determined by
                agreement between the Offeror and the Offerees, in cash. If they
                cannot agree on such cash equivalent within seven days after the
                Offerees give notice of the election to purchase the offered
                Ownership Interest, the Offerees may, by written notice to the
                Offeror, initiate appraisal proceedings under Section 11.5[d]
                for determination of the Fair Market Value of such
                consideration. The Fair Market Value shall be determined without
                regard to income tax consequences to the Offeror as a result of
                receiving cash in lieu of other consideration. Once the Fair
                Market Value is determined, (i) the Offerees, in their sole
                discretion, may elect either to purchase the Ownership Interest
                in cash by giving notice of such election to the Offeror within
                10 days after receipt of the appraiser's decision or to withdraw
                its acceptance of the Offer, and (ii) the Offeror may in its
                sole discretion withdraw the Offer provided that in such case it
                may not Transfer such Ownership Interests pursuant to the
                proposed Transfer.

[d]             Any appraisal of the Fair Market Value of consideration shall be
                made by an appraiser jointly appointed by the Members. If the
                Members fail to agree on an appraiser within 20 days after
                receipt of the notice requiring or permitting an appraisal of
                Fair Market Value, each Member Group shall appoint one
                appraiser, which shall be an investment banking firm of national
                repute. The two appraisers so selected shall each make an
                appraisal of Fair Market Value within 30 days after their
                selection. If such determinations vary by 20% or more of the
                higher determination, the two appraisers shall select a third
                appraiser with similar qualifications which shall make its
                determination of such Fair Market Value within 30 days after its
                selection. Such third appraiser shall not be informed of or
                otherwise consider the appraisals of the other two in reaching
                its determination. The Fair Market Value shall be the average of
                the two closest values if three appraisals are made or, if the
                determinations of the first two appraisers vary by less than 20%
                of the higher of such two determinations, the average of those
                two determinations. Any Fair Market Value determined pursuant to
                this Section 11.5[d] shall be binding and conclusive. If any
                Member Group fails to appoint an appraiser as required
                hereunder, the other Member Group may refer the matter to the
                American Arbitration Association, which shall promptly appoint 
                an appraiser hereunder on behalf of the Member Group failing to
                make such appointment.


                                      -22-
<PAGE>   27

[e]             The closing of the purchase of an Ownership Interest by the 
                Offerees shall take place within 60 days following the timely
                delivery to the Offeror of a written notice of acceptance
                pursuant to Section 11.5[b] or, if the provisions of Section
                11.5[c] apply, within 60 days following the delivery to the
                Offeror of a written notice of election pursuant to clause (i)
                of the last sentence of Section 11.5[c]. The Offeror shall give
                customary representations and warranties regarding the title of
                such Ownership Interests to the Offerees.

[f]             The Offerees may rescind their notice of acceptance given 
                pursuant to Section 11.5[b] at any time on or prior to the 30th
                day following the date of such notice of acceptance (but not
                thereafter) if (i) prior to the date of such notice of
                acceptance the Offerees had sought in good faith a waiver from
                the City Panel with respect to the application of any provision
                of Rule 9 of the City Code on Take-overs and Mergers which
                absent such waiver would require the Offerees to offer to
                purchase all of the outstanding Ordinary Shares and (ii) such
                waiver or any shareholder approval required by the City Panel
                has been denied (or has not been granted as of the last day of
                such rescission period).

11.6  CHANGE IN CONTROL OF A SHAREHOLDER GROUP.

[a]             If at any time there is an involuntary Change in Control with 
                respect to either the TCI Shareholder Group or the MediaOne
                Shareholder Group, the Member Group included in the Shareholder
                Group experiencing the Change in Control (the "Subject Group")
                shall give notice to the other Member Group promptly after the
                Subject Group becomes aware of the Change in Control. If at any
                time either Shareholder Group experiences a voluntary Change in
                Control, the Subject Group shall give notice to the other Member
                Group promptly after the terms of the Change in Control are set
                forth in a binding agreement. The Member Group not affected by
                such Change in Control (the "Responding Group") must within 30
                days after its receipt of such notice give notice to the Subject
                Group either [a] consenting to the Change in Control or [b]
                stating the price per percentage of Ownership Interest at which
                the Responding Group is willing to sell all of its Ownership
                Interests to the Subject Group or to buy all of the Subject
                Group's Ownership Interests (the "Quoted Price"). Failure to
                give notice of such election within the time permitted shall be
                deemed consent to the Change in Control.

[b]             If the Responding Group does not consent to the Change in
                Control, the Subject Group must, within 30 days after its
                receipt of the Responding Group's notice, give notice to the
                Responding Group of its election to sell all of its Ownership


                                      -23-
<PAGE>   28




                Interests to the Responding Group or to buy all of the
                Responding Group's Ownership Interests, in either case at the
                Quoted Price. Following the giving of notice of a Change in
                Control pursuant to this Section 11.6 and prior to (i) receipt
                by the Subject Group (or deemed receipt) of consent to such
                Change of Control or (ii) the closing of the sale of the Subject
                Group's or the Responding Group's Ownership Interests, no Member
                shall request, nor shall the Company be obligated to make, any
                voluntary Distribution of Shares. Any purchase of Ownership
                Interests pursuant to this Section 11.6 may be made only by a
                Member.

11.7 GENERAL CONDITIONS ON TRANSFERS. No Transfer of an Ownership Interest will
be effective unless all of the conditions set forth below are satisfied:

[a]             unless waived by the Company, the Transferor signs and delivers
                to the Company an undertaking in form and substance reasonably
                satisfactory to the Company to pay all reasonable expenses
                incurred by the Company in connection with the Transfer
                (including, but not limited to, reasonable fees of counsel and
                accountants and the costs to be incurred with any additional
                accounting required in connection with the Transfer, and the
                cost and fees attributable to preparing, filing and recording
                such amendments to the Articles or other organizational
                documents or filings as may be required by law);

[b]             the Transferor signs and delivers to the Company a copy of the
                assignment of the Ownership Interest to the Transferee in form
                and substance reasonably satis factory to the Company;

[c]             the Transferee signs and delivers to the Company an agreement to
                be bound by this Agreement if the Transferee is not a Member or
                the Company; and

[d]             the Transfer is in compliance with the other provisions of this
                Article 11.

11.8 RIGHTS OF TRANSFEREES. Except as provided in Section 11.9, any Transferee
of an Ownership Interest will, on the effective date of the Transfer, have only
those rights of an assignee specified in the Act unless and until such
Transferee is admitted as a Member. This provision limiting the rights of a
Transferee will not apply if such Transferee is already a Member; provided that
any Member who resigns or retires from the Company in contravention of Section
3.6 will have only the rights of a Transferee who has not been admitted as a
Member in accordance with this Agreement. Any Transferee of all or any part of
an Ownership Interest who is not admitted as a Member in accordance with this
Agreement has no right [a] to participate or interfere in the management or
administration of the Company's business or affairs, [b] to vote or agree on any
matter affecting the Company or any Member, [c] to require any information on


                                      -24-
<PAGE>   29




account of Company transactions or [d] to inspect the Company's books and
records. The only right of a Transferee of all or any part of an Ownership
Interest who is not admitted as a Member in accordance with this Agreement is to
receive the allocations and Distributions to which the Transferor was entitled
(to the extent of the Ownership Interest Transferred). However, each Transferee
of all or any part of an Ownership Interest (including both immediate and remote
Transferees) will be subject to all of the obligations, restrictions and other
terms contained in this Agreement as if such Transferee were a Member. With
respect to any Ownership Interest Transferred, the Transferor Member shall not
possess any right or power as a Member and may not exercise any such right or
power directly or indirectly on behalf of the Transferee. Neither the Company
nor any Member will owe any fiduciary duty to any Transferee who is not admitted
as a Member.

11.9 ADMISSION. A Transferee of an Ownership Interest will become a Member of
the Company only upon the affirmative unanimous Vote of Members, effective upon
a date specified (which must be on or after the effective date of the Transfer,
as determined under Section 11.7). Notwithstanding the foregoing, upon
compliance with Section 11.7, a Transferee which is an Affiliate of a Member
shall automatically become and be admitted as a Member without any action on the
part of the other Members.

11.10 SATISFACTION OF LEGAL REQUIREMENTS. Notwithstanding any other provision of
this Article 11, no Member may Transfer any Shares or Ownership Interests unless
it has complied with all applicable legal requirements, including without
limitation applicable United States federal and state securities laws. Upon the
exercise of any option to acquire Shares or Ownership Interests hereunder, the
Members shall use commercially reasonable efforts to obtain any necessary
consents or approvals of any governmental authorities or other Third Parties
necessary to effect such Transfer.

11.11 CLOSING. The closing of the purchase of any Ownership Interests by a
Member pursuant to this Article 11 shall take place at the Company's principal
offices on a day specified by the purchaser (other than a Saturday, Sunday or
day on which banking institutions in New York are required by law to be closed)
which is no more than 90 days after the date of exercise of the applicable
purchase option (or within the period of time provided by Section 11.5[e], if
applicable) or, if later, the date on which all necessary consents to such
Transfer by governmental authorities shall have been obtained. At the closing
the selling Member shall deliver a written assignment of Ownership Interests to
be sold free and clear of any lien, charge or encumbrance, and such other
documents as may be reasonably necessary to effectuate the sale. The purchase
price, to the extent it consists of cash, shall be paid in U.S. dollars in
immediately available funds.


                                      -25-
<PAGE>   30

11.12 EVENTS OF WITHDRAWAL. An Event of Withdrawal of a Member occurs upon [a]
such Member's resignation from the Company, [b] such Member's Bankruptcy or
[c] the occurrence of any other event which terminates the continued membership
of such Member in the Company (including the dissolution of that Member). Within
10 days after the occurrence of any such event, the Member experiencing the
Event of Withdrawal (or such Member's legal representative or other successor in
interest) will give notice to the Company of the occurrence of the Event of
Withdrawal. Upon the occurrence of an Event of Withdrawal with respect to a
Member, such Member will cease to have any voting and consent rights under
Article 3 and will have only the limited rights of a Transferee who has not been
admitted as a Member in accordance with this Agreement, as set forth in Section
11.8.

11.13 OBLIGATION TO CONTRIBUTE ADDITIONAL SHARES TO COMPANY. Each Member agrees
that, if any Shareholder included in its Member Group acquires additional Shares
after the date of this Agreement and before any Pro Rata Shares are distributed
to any Member pursuant to Section 6.5, the beneficial interests in all of such
Shares will be contributed to the Company as an Additional Contribution, with a
corresponding increase in the Ownership Interest of such Member pursuant to
Section 4.4 (or the issuance of an Ownership Interest to such Shareholder, who
shall be admitted as a Member, if such Shareholder is not already a Member).

11.14 COVENANT RELATING TO RULE 9 OF CITY CODE. Each Member covenants to and
agrees with the other Member that, in the event it or any member of the
Shareholder Group in which it is included elects to purchase Shares or Ownership
Interests, or is deemed to have made such an election pursuant to this
Agreement, it shall fulfill all obligations arising pursuant to Rule 9 of the
City Code on Takeovers and Mergers and shall pay all consideration and expenses
attributable to the Shareholders, the Members and the Company (but not Telewest)
in connection therewith.


ARTICLE  12:  DISSOLUTION  OF  THE  COMPANY

12.1 DISSOLUTION. Dissolution of the Company will occur upon the happening of
any of the following events: [a] the sale of all or substantially all of the
Company's assets; [b] the unanimous Vote of the Members; [c] April 1, 2045,
unless the Company is continued by the unanimous Vote of the Members; [d] a sale
of all or substantially all the assets of Telewest (other than by merger, share
exchange, scheme of arrangement, recapitalization or similar transaction); [e] a
merger or consolidation of Telewest pursuant to which all the voting securities
of the merged or consolidated entity are held by Persons other than the Company
and the Shareholders; or [f] a reduction in the number of Shares in respect of
which the Company and the TCI Shareholder Group and the MediaOne Shareholder
Group in the aggregate hold voting rights so that such Shares represent, for a
period of 10 consecutive days or longer, less than 50% of the voting power of 
all of Telewest's issued and outstanding share capital at that time unless the 
Members unanimously Vote to continue the Company.

                                      -26-
<PAGE>   31

12.2 EXCLUSIVE MEANS OF DISSOLUTION. The exclusive means by which the Company
may be dissolved are set forth in Section 12.1. The Company will not be
dissolved upon the death, retirement, resignation, expulsion, Bankruptcy or
dissolution of any Member or upon the occurrence of any other event which
terminates the continued membership of any Member in the Company.


ARTICLE  13:  LIQUIDATION

13.1 LIQUIDATION. Upon Dissolution of the Company, the Company promptly will
file a statement of intent to dissolve with the Colorado Secretary of State as
required by the Act and will thereafter wind up its affairs and liquidate. The
Member owning the largest Ownership Interest, or if such Member fails to act,
any Person appointed by unanimous Vote of the Members, will act as liquidating
trustee. The winding up and Liquidation of the Company will be accomplished in a
businesslike manner as determined by the liquidating trustee. A reasonable time
will be allowed for the orderly Liquidation of the Company and the discharge of
liabilities to creditors so as to enable the Company to minimize any losses
attendant upon Liquidation. Any gain or loss on disposition of any Company
assets in Liquidation will be allocated to Members and credited or charged to
Capital Accounts in accordance with the provisions of Articles 4 and 5. Any
liquidating trustee is entitled to reasonable compensation for services actually
performed, and may contract for such assistance in the liquidation process as
such Person deems necessary. Until the filing of articles of dissolution under
Section 13.6, the liquidating trustee may settle and close the Company's
business, prosecute and defend suits, dispose of its property, discharge or make
provision for its liabilities, and make distributions in accordance with the
priorities set forth in Section 13.2.

13.2 PRIORITY OF PAYMENT. The assets of the Company will be distributed in
Liquidation of the Company in the following order:

[a]              Creditors. First, to creditors by the payment or provision for
                 payment of the debts and liabilities of the Company (other than
                 any loans or advances made by any Member or any of its
                 Affiliates) and the expenses of Liquidation.

[b]              Reserves. Second, to the setting up of any reserves that are
                 reasonably necessary for any contingent, conditional or
                 unmatured liabilities or obligations of the Company.


                                      -27-
<PAGE>   32




[c]              Loans. Third, to the repayment of any loans or advances made by
                 any Member or any Affiliate of a Member (proportionately if the
                 amount available for such repayment is insufficient for payment
                 in full).

[d]              Capital Accounts. Fourth, to the payment to the Members of
                 their respective Capital Account balances as adjusted for their
                 respective shares of liquidating Profits and Losses.

[e]              Balance. Fifth, the balance, if any, to the Members in the
                 ratio of their Ownership Interests.

13.3 DISTRIBUTION TO MEMBERS. Distributions in Liquidation due to the Members
will be made by distributing the Company assets to the Members at their net Fair
Market Value in kind unless all Members unanimously agree in writing to the sale
of the Company's assets and the Distribution of the proceeds thereof. Any
liquidating Distribu tion in kind to the Members may be made either by a pro
rata Distribution of Shares (pursuant to Section 6.5, if applicable) or, with
respect to other assets, undivided interests in such assets or, if the Members
unanimously agree in writing, by non pro rata Distribution of specific assets at
Fair Market Value on the effective date of Distribution. Any Distribution in
kind may be made subject to, or require assumption of, liabilities to which such
property may be subject, but in the case of any non pro rata Distribution only
upon the express written agreement of the Member receiving the Distribution.
Each Member hereby agrees to save and hold harmless the other Members from such
Member's share of any and all such liabilities which are taken subject to or
assumed. Appropriate and customary prorations and adjustments shall be made
incident to any Distribution in kind.

13.4 DEFICIT CAPITAL ACCOUNT. Except as otherwise specifically provided in
Section 4.4, nothing contained in this Agreement imposes on any Member an
obligation to make an Additional Contribution in order to restore a deficit
Capital Account upon Liquidation of the Company. Each Member will look solely to
the assets of the Company for the return of such Member's Capital Contribution.

13.5 LIQUIDATING REPORTS. A report will be submitted by the liquidating trustee
with each liquidating Distribution to Members showing the collections,
disbursements and distributions during the period which is subsequent to any
previous report. A final report, showing cumulative collections, disbursements
and Distributions, will be submitted by the liquidating trustee upon completion
of the liquidation process.

13.6 ARTICLES OF DISSOLUTION.  Upon Dissolution of the Company and the 
completion of the winding up of its business, the Company will file articles of 


                                      -28-
<PAGE>   33

dissolution with the Colorado Secretary of State pursuant to the Act. At such
time, the Company also will file an application for withdrawal of its
certificate of authority in any jurisdiction where it is then qualified to do
business.


ARTICLE  14:  GENERAL  PROVISIONS

14.1 AMENDMENT. This Agreement may be amended only by the unanimous Vote of the
Members. Any amendment will become effective upon such Vote, unless otherwise
provided. Written notice of any proposed amendment must be given at least 5 days
in advance of the meeting at which the amendment will be considered (unless the
Vote is evidenced by duly signed minutes of action). Any amendment to this
Agreement is binding upon, and inures to the benefit of, each Member who holds
an Ownership Interest at or after the time of such amendment, without the
requirement that such Member sign the amendment or any republication or
restatement of this Agreement.

14.2 UNREGISTERED INTERESTS. Each Member [a] acknowledges that the Ownership
Interests in the Company are being offered and sold without registration under
the Securities Act of 1933, as amended, or under similar provisions of state
law, [b] acknowledges that such Member is fully aware of the economic risks of
an investment in the Company, and that such risk must be borne for an indefinite
period of time, [c] represents and warrants that such Member is acquiring an
Ownership Interest for such Member's own account, for investment, and with no
view to the distribution of the Ownership Interest and [d] agrees not to
Transfer, or to attempt to Transfer, all or any part of such Ownership Interest
without registration under the Securities Act of 1933, as amended, and any
applicable state securities laws, unless the Transfer is exempt from such
registration requirements.

14.3 RELIANCE. Each Member will be fully protected in relying in good faith upon
the records of the Company and upon such information, opinions, reports or
statements by [a] any of the Company's other Members, employees or committees or
[b] any other Person who has been selected with reasonable care as to matters
such Member reasonably believes are within such other Person's professional or
expert competence. Matters as to which such reliance may be made include the
value and amount of assets, liabilities, Profits and Losses of the Company, as
well as other facts pertinent to the existence and amount of assets from which
Distributions to Members may properly be made.

14.4 EQUITABLE RELIEF. If any Person proposes to Transfer all or any part of
such Person's Ownership Interest in violation of the terms of this Agreement,
the Company or any Member may apply to any court of competent jurisdiction for
an injunctive order prohibiting such proposed Transfer except upon compliance



                                      -29-
<PAGE>   34

with the terms of this Agreement, and the Company or any Member may institute
and maintain any action or proceeding against the Person proposing to make such
Transfer to compel the specific performance of this Agreement. Any attempted
Transfer in violation of this Agreement is null and void, and of no force and
effect. The Person against whom such action or proceeding is brought irrevocably
waives the claim or defense that an adequate remedy at law exists, and such
Person will not urge in any such action or proceeding the claim or defense that
an adequate remedy at law exists.

14.5 SPECIFIC PERFORMANCE. The Members agree that each would be irreparably
damaged if any Member failed to perform any obligation under this Agreement, and
that such Member would not have an adequate remedy at law for money damages in
such event. Accordingly, each Member will be entitled to specific performance
and injunctive and other equitable relief to enforce the performance of this
Agreement. This provision is without prejudice to any other rights that such
Member may have under this Agreement, at law or in equity.

14.6 COUNTERPARTS. This Agreement may be executed in one or more counterparts,
each of which shall constitute an original and all of which taken together will
constitute one agreement.

14.7 NOTICES. All notices under this Agreement will be in writing and will be
delivered or mailed addressed [a] if to the Company, at the Company's principal
business office, and [b] if to any Member, at such Person's address as then
appearing on the records of the Company.

14.8 DEEMED NOTICE. All notices given to any Person in accordance with this
Agreement will be deemed to have been duly given [a] on the date of receipt if
personally delivered, [b] three days after being sent by registered or certified
mail, postage prepaid, return receipt requested, [c] when sent by confirmed
electronic facsimile transfer or [d] one business day after having been sent by
a nationally recognized overnight courier service.

14.9 WAIVERS GENERALLY. No course of dealing will be deemed to amend or
discharge any provision of this Agreement. No delay in the exercise of any right
will operate as a waiver of such right. No single or partial exercise of any
right will preclude its further exercise. A waiver of any right on any one
occasion will not be construed as a bar to, or waiver of, any such right on any
other occasion.

14.10 PARTIAL INVALIDITY. Wherever possible, each provision of this Agreement
will be interpreted in such manner as to be effective and valid under applicable
law. However, if for any reason any one or more of the provisions of this
Agreement are held to be invalid, illegal or unenforceable in any respect by a

                                      -30-
<PAGE>   35

court of competent jurisdiction, such holding will not affect any other
provision of this Agreement. In such event, this Agreement will continue in
force and will be construed as if such invalid, illegal or unenforceable
provision had never been contained in it.

14.11 ENTIRE AGREEMENT. This Agreement, the Contribution Agreement and the
Relationship Agreement contain the entire agreement and understanding of the
Members with respect to their subject matter, and supersede all prior and
contemporaneous written and oral agreements with respect thereto.

14.12 NO THIRD PARTY BENEFIT. The contribution obligations of each Member will
inure solely to the benefit of the other Members and the Company, without
conferring on any other Person any rights of enforcement or other rights.

14.13 BINDING EFFECT.  This Agreement is binding upon, and inures to the benefit
of, the Members and their permitted Transferees.

14.14 FURTHER ASSURANCES. Each Member agrees, without further consideration, to
sign and deliver such other documents of further assurance as may reasonably be
necessary to effectuate the provisions of this Agreement.

14.15 HEADINGS. Article and Section titles have been inserted for convenience of
reference only. They are not intended to affect the meaning or interpretation of
this Agreement.

14.16 TERMS. Terms used with initial capital letters will have the meanings
specified, applicable to both singular and plural forms, for all purposes of
this Agreement. All pronouns (and any variation) will be deemed to refer to the
masculine, feminine or neuter, as the identity of the Person may require. The
singular or plural include the other, as the context requires or permits. The
word "include" (and any variation) is used in an illustrative sense rather than
a limiting sense. The terms "shall" and "will" both refer to an obligation that
is mandatory.

14.17 GOVERNING LAW. This Agreement will be governed by, and construed in
accordance with, the laws of the State of Colorado without considering any
conflicts of law principles. Any conflict or apparent conflict between this
Agreement and the Act will be resolved in favor of this Agreement except as
otherwise required by the Act.

14.18 RESTRICTIVE TRADE PRACTICES ACT. Any provision contained in this Agreement
or in any arrangement of which this Agreement forms part by virtue of which this
Agreement or such arrangement is subject to registration under the Restrictive
Trade Practices Acts 1976 and 1977 of England will not come into effect until
the day following the date on which particulars of this Agreement and of any

                                      -31-
<PAGE>   36

such arrangement have been furnished to the Office of the Director General of
Fair Trading in accordance with the requirements of such Acts.

In Witness Whereof, the Members have signed this AMENDED AND RESTATED OPERATING
AGREEMENT OF TW HOLDINGS, L.L.C. to be effective September 11, 1998.

                                           UNITED ARTISTS PROGRAMMING-
                                           EUROPE, INC.


                                           By:
                                                --------------------------------
                                           Its: 
                                                --------------------------------


                                           MEDIAONE CABLE PARTNERSHIP
                                           HOLDINGS, INC.


                                           By:
                                                --------------------------------
                                           Its: 
                                                --------------------------------


                                           MEDIAONE UK CABLE, INC.


                                           By:
                                                --------------------------------
                                           Its: 
                                                --------------------------------


                                      -32-
<PAGE>   37


                                    EXHIBIT A

                              CAPITAL CONTRIBUTIONS


<TABLE>
<CAPTION>
                                             Initial                    Additional               Ownership
                                          Contribution                  Contribution             Interest
                                          ------------                  ------------             ---------
<S>                                     <C>                            <C>                       <C>
United Artists                          $1,000 plus                                    
Programming-Europe, Inc.                378,750,000 Shares              _______ Shares             50.00%
                                         
MEDIAONE UK Cable, Inc.                 $912.90 plus                                  
                                        345,744,800 Shares              _______ Shares             45.67%


MEDIAONE Cable Partnership              $87.10 plus                                    
Holdings, Inc.                          33,005,200 Shares               _______ Shares              4.33%
</TABLE>

                                      A-1


<PAGE>   1
                                                                     EXHIBIT (9)

                             CONTRIBUTION AGREEMENT


     This Contribution Agreement (this "Agreement") is made as of _________ __,
1998 among MediaOne Cable Partnership Holdings, Inc., formerly named U S WEST
Cable Partnership Holdings, Inc., and MediaOne UK Cable, Inc., formerly named 
U S WEST UK Cable, Inc. (collectively, the "MediaOne Members"), United Artists
Programming-Europe, Inc. (the "TINTA Member") and TW Holdings, L.L.C., a
Colorado limited liability company (the "Company").


                                    RECITALS

     The MediaOne Members and the TINTA Member (collectively, the "Members") are
all of the members of the Company. The Company beneficially owns ordinary and
convertible preference shares of Telewest Communications plc ("Telewest") that
were previously contributed to it by the Members. The Members wish to provide
for additional contributions to the Company as required by the Subscription
Agreement dated April 15, 1998 among Telewest, MediaOne Group, Inc. (formerly
named U S WEST, Inc.), Tele-Communications International, Inc. and Cox
Communications, Inc., as amended and restated by the Amended and Restated
Subscription Agreement among those parties dated as of April 15, 1998 (together,
the "Subscription Agreement") and to amend and restate the Company's operating
agreement in connection therewith. Capitalized terms used but not defined in
this Agreement will have the meanings given them in the Subscription Agreement.

     In consideration of the mutual promises and covenants contained in this
Agreement, the parties agree as follows:


                       I. CONTRIBUTIONS; OTHER AGREEMENTS

     1.1 Contributions to the Company. Subject to the terms and conditions set
forth in the Subscription Agreement, promptly after they have received notice
from Telewest of the number of Primary Subscription Shares taken up by Public
Telewest Shareholders, (a) the TINTA Member will contribute to the Company cash
in the amount required to permit the Company to subscribe for and purchase the
Primary Subscription Shares that were not taken up by the Public Telewest
Shareholders, to the extent of the TINTA Member's Proportionate Commitment, plus
an amount equal to the aggregate Open Offer Price of the TINTA Committed Shares
and (b) the MediaOne Members will contribute to the Company cash in the amount
required to permit the Company to subscribe for and purchase the Primary
Subscription Shares that were not taken up by the Public Telewest Shareholders,
to the extent of the MediaOne Members' Proportionate Commitment, and the
Secondary Subscription Shares that were not taken up by the Public Telewest
Shareholders plus an amount equal to the aggregate Open Offer Price of the
MediaOne Committed Shares.

<PAGE>   2

     1.2 Company Subscription for Primary and Secondary Subscription Shares. The
Company will subscribe for (a) the Primary Subscription Shares that are not
taken up by the Public Telewest Shareholders to the extent of the TINTA Member's
and the MediaOne Members' Proportionate Commitments pursuant to Section 5.3 of
the Subscription Agreement and (b) the Secondary Subscription Shares (to the
extent not taken up by the Public Telewest Shareholders) pursuant to Section 5.4
of the Subscription Agreement, and when such shares are allotted to the Company
by Telewest the Company will purchase such shares with the cash contributed to
it by the Members pursuant to Section 1.1.

     1.3 Subscription for Committed Shares. Prior to the Latest Application Time
(a) the TINTA Member will subscribe for the TINTA Committed Shares and (b) the
MediaOne Members will subscribe for the MediaOne Committed Shares pursuant to
Section 4.1 of the Subscription Agreement, and when such shares are allotted to
the Members by Telewest the Members will purchase such shares with cash provided
by the Company.

     1.4 Other Agreements. At the time the transactions contemplated by this
Agreement are consummated (the "Closing"), each Member will execute and deliver:

          (a) an Amended and Restated Operating Agreement for the Company in the
     form of Exhibit A;

          (b) a Nominee Agreement in the form of Exhibit B in respect of the
     TINTA Committed Shares or the MediaOne Committed Shares, as applicable; and

          (c) a Declaration of Trust in the form of Exhibit C for the TINTA
     Committed Shares or the MediaOne Committed Shares, as applicable.


                II. REPRESENTATIONS AND WARRANTIES OF THE MEMBERS

     Each Member represents and warrants to the other Members and the Company
that:

     2.1 Organization, Good Standing and Authority. It is a corporation duly
organized, validly existing and in good standing under the laws of the
jurisdiction of its formation and has all requisite corporate power and
authority to carry on its business as it is now being conducted and to enter
into and to perform its obligations under this Agreement, the Operating
Agreement and the other agreements to be executed and delivered by it pursuant
to this Agreement.

     2.2 Authorization and Validity; No Conflicts. The execution and delivery by
such Member of, and the performance by it of its obligations under, this
Agreement, the Operating Agreement and the other agreements to be executed and 


                                       2
<PAGE>   3

delivered by it pursuant to this Agreement have been duly authorized by all
requisite corporate action. This Agreement constitutes, and when executed and
delivered by such Member, the Operating Agreement and the other agreements to be
executed and delivered by it pursuant to this Agreement will constitute, its
legal, valid and binding obligations, enforceable in accordance with their
respective terms, except as such enforceability may be affected by applicable
bankruptcy, reorganization, insolvency, moratorium or other similar laws
affecting creditors' rights generally or by general equitable principles. The
execution and delivery by such Member of, and the performance by it of its
obligations under, this Agreement, the Operating Agreement and the other
agreements to be executed and delivered by it pursuant to this Agreement will
not violate its articles or certificate of incorporation or bylaws or, subject
to the Subscription Agreement becoming unconditional, any material agreement to
which it is a party or by which it is bound or affected or any applicable law,
regulation or rule.

     2.3 Consents. Except as required for the Subscription Agreement to become
unconditional, no consent or approval of, notice to or filing with, any other
Person is required in connection with the execution, delivery and performance by
such Member of this Agreement, the Operating Agreement and the other agreements
to be executed and delivered by it pursuant to this Agreement or the
consummation by it of the transactions contemplated hereby or thereby.

     2.4 No Liens on Telewest Shares. Except with respect to the rights and
obligations of the parties set forth in the Nominee Agreements, the Declarations
of Trust and the Operating Agreement to be executed and delivered pursuant to
this Agreement, when delivered by such Member at the Closing the ordinary shares
of Telewest to be contributed by such Member to the Company will be owned by the
Company free and clear of any lien, charge, encumbrance, security interest or
any other right of any third party whatsoever, except those imposed by the
Articles of Association of Telewest, the Nominee Agreements and Declarations of
Trust required by this Agreement or applicable law.


                    III. CONDITION TO OBLIGATIONS OF PARTIES

     No party will have any obligation to consummate the transactions
contemplated by this Agreement unless the Subscription Agreement becomes
unconditional in accordance with its terms.


                            IV. INTENTIONALLY OMITTED


                                V. MISCELLANEOUS

     5.1 Notices. All notices, requests, demands and other communications called
for or contemplated hereunder will be in writing and will be deemed to have been

                                       3
<PAGE>   4


duly given if delivered in person or by certified or registered mail, prepaid,
or sent by courier or confirmed telecopy. Notices will be addressed to the
Company at its registered address and to the Members at their addresses set
forth on the books of the Company. Any party may change the address to which
notices are required to be sent by giving notice of such change in the manner
provided in this Section. All notices will be deemed to have been received on
the date of delivery or on the third Business Day after the mailing thereof.

     5.2 Confidentiality. Whether or not the transactions contemplated hereby
are consummated, each party will keep confidential any non-public information
obtained from the other in connection with the transactions contemplated by this
Agreement, will not utilize such information for any purpose and will return to
the other party all documents, work papers and other materials obtained by it in
connection with the transactions contemplated hereby.

     5.3 Modification; Waiver. This Agreement may be modified only by a writing
signed by all parties, and no provision or condition herein may be waived other
than by a writing signed by the party waiving such provision or condition.

     5.4 Headings. Article and Section headings in this Agreement are for the
sole purpose of convenient reference and in no way define, limit or prescribe
the scope or intent of this Agreement or any part hereof, and such headings will
not be considered in interpreting or construing this Agreement.

     5.5 Assignment. No party will assign any of its rights under this Agreement
or delegate its duties hereunder unless it obtains the prior written consent of
the other parties, which consent may be withheld at each such party's absolute
discretion.

     5.6 Counterparts. This Agreement may be executed in counterparts, each of
which will be deemed to be an original and all of which taken together will
constitute one instrument.

     5.7 Additional Documents. At the Closing and from time to time after the
Closing, at any party's request and without further consideration, the other
parties will execute and deliver such other instruments of conveyance and
transfer and take such other action as may reasonably be required to effectively
carry out the transactions contemplated by this Agreement.

     5.8 Other Provisions. This Agreement together with its exhibits and the
Operating Agreement constitute the entire agreement of the parties regarding the
subject matter hereof and thereof, and all prior or contemporaneous agreements,
understandings, representations and statements, oral or written, are hereby
merged into this Agreement and the Operating Agreement. This Agreement will be
binding upon and inure to the benefit of the parties and, subject to the


                                       4
<PAGE>   5




limitations set forth in Section 5.5, their respective successors and assigns.
The provisions of this Agreement are for the exclusive benefit of the parties
and their permitted successors and assigns, and no other person or entity is
intended to be a third party beneficiary or to have any rights by virtue of this
Agreement.

     5.9 Governing Law. This Agreement will be governed by the laws of the State
of Colorado, without regard to any conflicts of laws principles.

     IN WITNESS WHEREOF, the parties have executed this Agreement as of the date
first above written.

                                       MEDIAONE CABLE PARTNERSHIP HOLDINGS, INC.


                                       By:
                                          -------------------------------------

                                       Its:
                                           ------------------------------------


                                       MEDIAONE UK CABLE, INC.


                                       By:
                                          -------------------------------------

                                       Its:
                                           ------------------------------------


                                       UNITED ARTISTS PROGRAMMING-EUROPE, INC.


                                       By:
                                          -------------------------------------

                                       Its:
                                           ------------------------------------


                                       TW HOLDINGS, L.L.C.


                                       By:
                                          -------------------------------------

                                       Its:
                                           ------------------------------------

                                       5
<PAGE>   6

                                       TW HOLDINGS, L.L.C.


                                       By:
                                          -------------------------------------
                                                  Stephen M. Brett
                                                  Managing Director


                                       6
<PAGE>   7




                                    EXHIBIT B

                                NOMINEE AGREEMENT

     This Nominee Agreement (this "Agreement") is entered into as of ______ ___,
1998 by and between TW Holdings, L.L.C., a Colorado limited liability company
(the "Owner"), and United Artists Programming-Europe, Inc. (the "Nominee").

     Whereas, the Owner is the beneficial owner of _________ Ordinary Shares of
Telewest Communications plc which have been purchased with cash contributed to
the Owner by the Nominee (the "Shares"); and

     Whereas, the Owner and the Nominee wish to set forth the terms and
conditions upon which the Nominee will agree to serve as the record holder of
the Shares, as nominee only, on behalf of the Owner.

     In consideration of the mutual benefits to be derived from this Agreement,
the parties agree as follows:

     1. Nominee shall be and remain during the term hereof the record holder of
the Shares for the benefit of the Owner.

     2. All legal and beneficial ownership rights in the Shares shall reside in
the Owner. Nominee shall hold, vote, dispose of and otherwise act in respect of
the Shares in accordance with, and only in accordance with, the instructions of
the Owner as given by the Owner in its sole discretion from time to time.
Nominee shall not take any action in respect of the Shares except as
specifically instructed by the Owner.

     3. Either party may terminate this Agreement at any time in its discretion
upon 10 days' prior written notice to the other. Upon any such termination
Nominee shall promptly surrender to the Owner any certificates representing
Shares, duly endorsed for transfer or accompanied by stock powers duly executed
in blank, and shall take any other actions necessary or advisable to cause the
Owner or other transferee designated by the Owner to be reflected as the record
holder of the Shares on the books of Telewest Communications plc.

     4. This Agreement contemplates the personal services of Nominee and may not
be assigned by it without the prior written consent of the Owner.

     Executed as of the date first above written.

TW HOLDINGS, L.L.C.                      UNITED ARTISTS PROGRAMMING-EUROPE, INC.


By:                                      By:
    ---------------------------------        ----------------------------------
    Managing Director
                                         Title:
                                                --------------------------------

<PAGE>   8



                                    EXHIBIT C

                              DECLARATION OF TRUST
                              IN RESPECT OF SHARES
                         IN TELEWEST COMMUNICATIONS PLC


We, United Artists Programming-Europe, Inc., of 5619 DTC Parkway, Englewood,
Colorado, declare that ____________ ordinary shares (the "Shares") in the
capital of Telewest Communications plc (the "Company") registered in our name in
the Company's register of members are held by us on trust for TW Holdings,
L.L.C., a Colorado limited liability company (the "Beneficial Owner").

We agree:

1.   not to transfer or otherwise dispose of the Shares except as the Beneficial
     Owner directs;

2.   at the request of the Beneficial Owner to transfer or join in the transfer
     of the Shares to the Beneficial Owner or as it directs;

3.   to account promptly to the Beneficial Owner for all dividends and other
     distributions received by us in respect of the Shares;

4.   to give promptly to the Beneficial Owner a copy of all notices and other
     communications in respect of the Shares received by us from the Company or
     any other person; and

5.   to exercise all voting and other rights which we may have as registered
     holder of the Shares as the Beneficial Owner directs.

We have given to the Beneficial Owner a transfer form executed in blank in
respect of the Shares. We authorize the Beneficial Owner to complete and date
the transfer form as it thinks fit.

This declaration of trust is made by way of deed and is governed by English law.

Dated:                , 1998
      ------------ ---

Executed as a deed by UNITED ARTISTS PROGRAMMING-EUROPE, INC.


                                              Attest:
 By:
     ------------------------------------

 Title:
        ---------------------------------     ---------------------------------
                                              Assistant Secretary

<PAGE>   1
                                                                   EXHIBIT (10)

Mr. Rick Moore
Southwestern Bell International Holdings (UK-1) Corporation ("SBC")
175 East Houston
Room 11 B80
San Antonio, TX  78205

PRIVATE & CONFIDENTIAL

Dear Rick,

TELEWEST COMMUNICATIONS PLC ("TELEWEST")

Further to our discussions over the weekend, I want to confirm with you the
agreement we have reached:

1.       Subject to the matters outlined in paragraph 3 below, SBC agrees to 
         sell and MediaOne International Holdings, Inc. ("MEDIAONE HOLDINGS")
         agrees to buy as soon as reasonably practical, but in any event within
         five business days from satisfaction of the conditions set out in
         paragraph 3, up to 180,000,000 ordinary shares of 10p each in the
         capital of TeleWest ("TELEWEST SHARES") subject to a minimum number
         ("MINIMUM") equal to the lesser of (a) 170,000,000 of such ordinary
         shares and (b) the number of TeleWest Shares as shall be available for
         SBC to sell following any exercise by Tele-Communications
         International, Inc. ("TINTA") in regard to its right of first offer
         referred to in 3(a) below at a price of US $2.25 per share.

2.       Within five business days of satisfaction of the conditions in 
         paragraph 3 below, MediaOne Holdings shall acquire and SBC shall sell
         the lesser of (a) such number of the Telewest Shares as when aggregated
         with those then held by MediaOne Holdings and persons treated as acting
         in concert with MediaOne Holdings for the purposes of the City Code on
         Takeovers and Mergers, would represent 29.9% of the voting rights of
         TeleWest (but in no event less than the Minimum) or (b) all of the
         TeleWest Shares or any lesser number of TeleWest Shares as shall be
         available for SBC to sell following any exercise by TINTA in regard to
         its right of first offer referred to in 3(a) below ("SALE SHARES"). SBC
         will be under no obligation to sell and MediaOne Holdings will be under
         no obligation to buy any TeleWest Shares from SBC other than the Sale
         Shares. MediaOne Holdings confirms that based on the provisional
         figures produced in connection with the merger of TeleWest and General
         Cable by J. Henry Schroder & Co. Ltd., London ("SCHRODERS") dated 7
         September 1998 and aggregating the number of shares held by MediaOne
         Holdings and persons treated as acting in concert with it for the
         purposes of the City Code on Takeovers and Mergers, the number of Sale
         Shares that it will be entitled to acquire will be 178,077,333.
         However, the precise number of Sale Shares to be acquired by MediaOne
         is subject to confirmation by Schroders, which confirmation is expected
         to be given by Tuesday 15 September. At completion MediaOne Holdings
         will pay to SBC in same day funds of US $2.25 per share by electronic
         transfer to 


<PAGE>   2

         an account notified by SBC against delivery to MediaOne Holdings of
         duly executed stock transfer forms in respect of the Sale Shares in
         favor of MediaOne Holdings (or its designee) and the relative share
         certificates. Completion shall take place at MediaOne Holdings' offices
         in London. SBC and MediaOne will defer to the opinion if Schroders in
         the event of a dispute over level or calculation of shareholdings.

3.       This agreement and completion of the sale and purchase is conditional 
         on the following:

         a.       (subject to Schroders first confirming to MediaOne the number
                  of Sale Shares which MediaOne is entitled to acquire and
                  MediaOne notifying SBC of that number) either SBC providing a
                  waiver from TINTA in respect of the Sale Shares regarding the
                  rights of first offer under clause 9.1 of the Amended and
                  Restated Relationship Agreement dated as of 15 April 1998
                  relating to Telewest or SBC providing written notice to
                  commence the procedures prescribed by clause 9.1 in respect of
                  the Sale Shares and once completed SBC being free to sell the
                  Sale Shares to MediaOne Holdings or its designee at US $2.25
                  per share;

         b.       the Panel confirming by Friday 25 September 1998 that should
                  MediaOne Holdings not acquire the whole of SBC's shareholdings
                  in TeleWest, it will not treat SBC as acting in concert with
                  MediaOne Holdings (such that SBC's residual shareholding would
                  be aggregated with the shareholdings of MediaOne Holdings and
                  its other concert parties so as to trigger a mandatory offer
                  requirement under Rule 9 of the City Code on Takeovers and
                  Mergers);

         c.       the Panel confirming by Friday 25 September 1998 that MediaOne
                  Holdings will not be entitled or obliged to acquire any shares
                  in the capital of Telewest the acquisition of which would
                  trigger a mandatory offer requirement under Rule 9 of the City
                  Code on Takeovers and Mergers;

         d.       compliance by Friday 25 September 1998 by MediaOne Holdings
                  with all applicable US legal requirements including, without
                  limitation, applicable United States Federal and State
                  securities laws.

4.       MediaOne Holdings shall use commercially reasonable efforts to satisfy
         the conditions in 3b, 3c and 3d above and SBC shall use commercially
         reasonable efforts to satisfy the condition in 3a above. Each party
         shall promptly notify the other of the satisfaction of any condition
         referred to in paragraph 3 above for which it is responsible and shall
         provide evidence reasonably satisfactory to the other party of the
         fulfillment of the relevant condition.

5.       MediaOne Holdings undertakes that it shall not, and that it shall use
         all its rights and powers to procure that no other person acting in
         concert with it shall not, take any action which would reduce the 
         number of Sale Shares which it would otherwise be obliged to buy 
         pursuant to this Agreement.


                                      -2-

<PAGE>   3




6.       MediaOne Holdings agrees that it will not resell any Sale Shares
         required by it under this Agreement except pursuant to an effective
         registration statement covering those Sale Shares or pursuant to an
         exemption from registration under the US Securities Act of 1933.

7.       Both parties shall first approve any public announcement regarding this
         Agreement save to the extent that any announcement is required by law
         or the rules of any applicable stock exchange.

8.       Each party represents to the other that it has due authority to 
         execute this Agreement.

This is intended to represent a legally binding agreement between SBC and
MediaOne Holdings and I suggest that it be governed by English law. I should be
grateful if you would confirm your agreement to the above terms on behalf of SBC
by signing and returning the enclosed copy of this letter.

Yours sincerely,

/s/ Robert J. Ford
For and on behalf of
MediaOne International Holdings, Inc.

Dated:  9/10/98

Agreed and Accepted:

/s/ James Kahan
For and on behalf of
SBC International Holdings (UK-1) Corporation


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