ASSOCIATED GROUP INC
8-K, 1999-06-03
RADIOTELEPHONE COMMUNICATIONS
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<PAGE>

                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20579

                                    FORM 8-K

                                 CURRENT REPORT

                     Pursuant to Section 13 or 15(d) of the

                         Securities Exchange Act of 1934

                                  May 28, 1999
                Date of Report (Date of earliest event reported)

                           THE ASSOCIATED GROUP, INC.

             (Exact name of registrant as specified in its charter)

    Delaware                   0-24924                           51-0260858
- --------------------------------------------------------------------------------
(State or other            (Commission                         (IRS Employer
jurisdiction of             File Number)                     Identification No.)

                     200 Gateway Towers, Pittsburgh PA 15222
- --------------------------------------------------------------------------------
          (Address of principal executive offices, including zip code)

                                 (412) 281-1907
- --------------------------------------------------------------------------------
               Registrant's telephone number, including area code


<PAGE>

Item 5. Other Events

Merger Agreement.

         On June 1, 1999, the Registrant and Liberty Media Corporation ("Liberty
Media") announced that they had entered into an Agreement and Plan of Merger,
dated as of May 28, 1999, among AT&T Corp. ("AT&T"), A-Group Merger Corp., a
wholly owned subsidiary of AT&T ("Sub"), Liberty Media and the Registrant (the
"Merger Agreement") providing, upon the terms and subject to the conditions set
forth therein, for the acquisition of the Registrant through the merger of Sub
with and into the Registrant (the "Merger"), with the Registrant surviving the
Merger.

         The foregoing description of the Merger and the Merger Agreement is
qualified in its entirety by reference to the Merger Agreement and the joint
press release of the Registrant and Liberty Media Corporation dated June 1,
1999, copies of which are attached hereto as Exhibits 2.1 and 99.1,
respectively, and are incorporated herein by reference.

Amendment of Rights Agreement.

         In connection with and prior to the execution of the Merger Agreement
and the Voting Agreement referred to below, the Registrant and ChaseMellon
Shareholders Services, L.L.C. (successor to Mellon Bank, N.A.) entered into a
Second Amendment to Rights Agreement (the

<PAGE>

"Second Amendment") dated as of May 28, 1999, amending the Rights Agreement
between Registrant and Mellon Bank, N.A., as Rights Agent, dated as of December
14, 1994, as theretofore amended (the "Rights Agreement"). The Second Amendment
provides that the Merger Agreement, the Voting Agreement and the transactions
contemplated thereby will not result in a triggering of the rights under the
Rights Agreement.

         The foregoing description of the Second Amendment is qualified in its
entirety by reference to the Second Amendment, a copy of which is attached
hereto as Exhibit 4.1 and is incorporated herein by reference.

Voting Agreement.

         Also on May 28, 1999, in connection with and prior to execution of the
Merger Agreement, certain stockholders of the Registrant (the "Stockholders")
entered into a Voting Agreement, dated as of May 28, 1999 (the "Voting
Agreement") with AT&T and Liberty Media, whereby the Stockholders severally
agreed with Liberty Media, upon the terms and subject to the conditions
contained in the Voting Agreement (including terms and conditions with respect
to termination thereof), to vote a total of 4,200,226 shares of the Registrant's
Class A Common Stock owned by them, representing approximately 20% of the votes
represented by all outstanding shares of the Registrant's Class A Common

<PAGE>

Stock and Class B Common Stock as of May 28, 1999, in favor of approval and
adoption of the Merger Agreement and against any Alternative Proposal (as
defined in the Merger Agreement). The Registrant is not a party to the Voting
Agreement.

<PAGE>

Item 7.  Financial Statements, Pro Forma Financial Information and Exhibits

         (c)  Exhibits

                  2.1   Agreement and Plan of Merger, dated as of May
                        28, 1999, among AT&T Corp., A-Group Merger
                        Corp., Liberty Media Corporation and the
                        Registrant

                  4.1   Second Amendment to Rights Agreement, dated as
                        of May 28, 1999, by and between the Registrant
                        and ChaseMellon Shareholder Services, L.L.C.

                 99.1   Joint Press Release of the Registrant and Liberty Media
                        Corporation dated June 1, 1999


<PAGE>



                                    SIGNATURE

                  Pursuant to the requirements of the Securities Exchange Act of
1934, the registrant has duly caused this report to be signed on its behalf by
the undersigned thereunto duly authorized.


                                            THE ASSOCIATED GROUP, INC.


Date: June 2, 1999                       By: /s/ Myles P. Berkman
                                             --------------------------
                                             Name:  Myles P. Berkman
                                             Title: Chairman, President,
                                                    Chief Executive Officer and
                                                    Treasurer



<PAGE>

                           EXHIBIT INDEX

Exhibit  Description


 2.1     Agreement and Plan of Merger, dated as of May 28, 1999, among AT&T
         Corp., A-Group Merger Corp., Liberty Media Corporation and the
         Registrant

 4.1     Second Amendment to Rights Agreement, dated as of May 28, 1999, by and
         between the Registrant and ChaseMellon Shareholder Services, L.L.C.

99.1     Joint Press Release of the Registrant and Liberty Media Corporation
         dated June 1, 1999




<PAGE>

================================================================================

                          AGREEMENT AND PLAN OF MERGER


                                     among


                                  AT&T CORP.,

                             A-GROUP MERGER CORP.,

                           LIBERTY MEDIA CORPORATION

                                      and

                           THE ASSOCIATED GROUP, INC.


                            Dated as of May 28, 1999


================================================================================

<PAGE>



                               TABLE OF CONTENTS
<TABLE>
<CAPTION>
                                                                                                               Page

<S>                                                                                                              <C>
ARTICLE I

         DEFINITIONS AND CONSTRUCTION.............................................................................1
                  1.1      Certain Definitions....................................................................1
                  1.2      Additional Definitions................................................................10
                  1.3      Terms Generally.......................................................................13

ARTICLE II

         THE MERGER AND RELATED MATTERS..........................................................................13
                  2.1      The Merger............................................................................13
                  2.2      Closing...............................................................................14
                  2.3      Conversion of Securities..............................................................15
                  2.4      Exchange of Shares....................................................................16
                  2.5      Changes in Parent Common Stock, Class A Liberty Group Stock or
                                    Class B Liberty Group Stock..................................................19

ARTICLE III

         CERTAIN ACTIONS.........................................................................................20
                  3.1      Stockholder Meeting...................................................................20
                  3.2      Registration Statement and Other Commission Filings...................................20
                  3.3      Identification of Rule 145 Affiliates.................................................21
                  3.4      Reasonable Efforts....................................................................22
                  3.5      Employee Matters......................................................................27
                  3.6      Company Severance Obligations.........................................................27
                  3.7      Company Stock Plan....................................................................28
                  3.8      Teligent Board........................................................................28
                  3.9      Pre-Merger Restructuring Transactions.................................................29
                  3.10     TruePosition Stock Plan...............................................................29
                  3.11     Conversions; Tax Treatment of LLCs....................................................29
                  3.12     Acquisition of Company Stock..........................................................29
                  3.13     Expenses..............................................................................31
                  3.14     Compensation..........................................................................32
</TABLE>



<PAGE>



<TABLE>
<S>                                                                                                              <C>
ARTICLE IV

         REPRESENTATIONS AND WARRANTIES OF THE COMPANY...........................................................32
                  4.1      Organization and Qualification........................................................32
                  4.2      Authorization and Validity of Agreement...............................................34
                  4.3      Capitalization........................................................................34
                  4.4      Reports and Financial Statements......................................................35
                  4.5      No Approvals or Notices Required; No Conflict with Instruments........................37
                  4.6      Absence of Certain Changes or Events..................................................38
                  4.7      Registration Statement; Proxy Statement...............................................39
                  4.8      Legal Proceedings.....................................................................39
                  4.9      Licenses; Compliance with Regulatory Requirements.....................................39
                  4.10     Brokers or Finders....................................................................40
                  4.11     Tax Matters...........................................................................41
                  4.12     Employee Matters......................................................................41
                  4.13     Fairness Opinion......................................................................44
                  4.14     Recommendation of the Company Board...................................................44
                  4.15     Vote Required.........................................................................44
                  4.16     Intangible Property; Copyrights.......................................................44
                  4.17     Investment Securities.................................................................44
                  4.18     Transactions with Affiliates and Certain Agreements...................................45
                  4.19     No Investment Company.................................................................45
                  4.20     DGCL Section 203......................................................................45
                  4.21     Rights Agreement......................................................................45
                  4.22     British Telecommunications............................................................45
                  4.23     No Appraisal Rights...................................................................46
                  4.24     No Excise Tax Obligations.............................................................46

ARTICLE V

         REPRESENTATIONS AND WARRANTIES OF PARENT................................................................46
                  5.1      Organization and Qualification........................................................46
                  5.2      Authorization and Validity of Agreement...............................................46
                  5.3      Capitalization of Parent..............................................................47
                  5.4      Ownership of Merger Sub; No Prior Activities;
                                    Assets of Merger Sub.........................................................47
                  5.5      Ownership of Company Stock............................................................48
                  5.6      Registration Statement; Proxy Statement...............................................48
</TABLE>



<PAGE>



<TABLE>
<S>                                                                                                              <C>
ARTICLE VI

         REPRESENTATIONS AND WARRANTIES OF LIBERTY...............................................................49
                  6.1      Organization and Qualification........................................................49
                  6.2      Authorization and Validity of Agreement...............................................49
                  6.3      Ownership of Company Stock............................................................49
                  6.4      Registration Statement; Proxy Statement...............................................50
                  6.5      Liberty Group Information.............................................................50
                  6.6      Absence of Certain Changes or Events..................................................50

ARTICLE  VII

         ADDITIONAL COVENANTS AND AGREEMENTS.....................................................................51
                  7.1      Access to Information Concerning Properties and Records...............................51
                  7.2      Confidentiality.......................................................................51
                  7.3      Public Announcements..................................................................52
                  7.4      Conduct of the Company's Business Pending the Effective Time..........................52
                  7.5      No Solicitation.......................................................................55
                  7.6      Expenses..............................................................................58
                  7.7      Actions by Merger Sub.................................................................58
                  7.8      Listing...............................................................................58
                  7.9      Convertible Securities................................................................58
                  7.10     Voting Agreement......................................................................59
                  7.11     Voting of Company Stock Held by Parent or Liberty.....................................59
                  7.12     Indemnification of Directors and Officers; Insurance..................................59
                  7.13     Tax Matters...........................................................................60
                  7.14     Certificates as to Indebtedness.......................................................61
                  7.15     Restructuring Transactions............................................................61

ARTICLE VIII

         CONDITIONS PRECEDENT....................................................................................61
                  8.1      Conditions Precedent to the Obligations of Parent, Merger Sub,
                                    and the Company for the Benefit of Parent, Merger Sub,
                                    Liberty and the Company......................................................61
                  8.2      Conditions Precedent to the Obligations of Parent and Merger Sub
                                    for the Benefit of Liberty...................................................62
                  8.3      Conditions Precedent to the Obligations of Parent and Merger Sub
                                    for the Benefit of Parent....................................................65
                  8.4      Conditions Precedent to the Obligations of the Company................................69

ARTICLE IX

         TERMINATION.............................................................................................71
</TABLE>


<PAGE>



<TABLE>
<S>                                                                                                              <C>
                  9.1      Termination and Abandonment...........................................................71
                  9.2      Termination Fee; Effects of Termination...............................................72

ARTICLE X

         MISCELLANEOUS...........................................................................................74
                  10.1     No Waiver or Survival of Representations and Warranties...............................74
                  10.2     Notices...............................................................................74
                  10.3     Entire Agreement......................................................................75
                  10.4     Assignment; Binding Effect; Benefit...................................................76
                  10.5     Amendment.............................................................................76
                  10.6     Extension; Waiver.....................................................................76
                  10.7     Headings..............................................................................77
                  10.8     Counterparts..........................................................................77
                  10.9     Applicable Law........................................................................77
                  10.10    No Remedy in Certain Circumstances....................................................77
                  10.11    Enforcement...........................................................................77
                  10.12    Disclosure Schedule...................................................................78
</TABLE>




<PAGE>


EXHIBITS

Exhibit 2.1(a)             Form of Certificate of Merger
Exhibit 3.3                Form of Affiliate Agreement
Exhibit 7.10               Form of Voting Agreement
Exhibit 7.13(i)            Parent Certificate
Exhibit 7.13(ii)           Company Certificate
Exhibit 7.13(iii)          Liberty Certificate
Exhibit 7.15               Restructuring Transactions

SCHEDULES

Schedule 1.1(a)            Exceptions from Liberty Material Adverse Effect

Company Disclosure Schedule


<PAGE>



                          AGREEMENT AND PLAN OF MERGER


                  THIS AGREEMENT AND PLAN OF MERGER (this "Agreement") is made
as of this 28th day of May, 1999, by and among AT&T Corp., a New York
corporation ("Parent"), A-Group Merger Corp., a Delaware corporation ("Merger
Sub"), Liberty Media Corporation, a Delaware corporation ("Liberty"), and The
Associated Group, Inc., a Delaware corporation (the "Company").

                  WHEREAS, the parties are entering into this Agreement to
provide for the terms and conditions upon which the Company will be acquired by
Parent by means of a merger of Merger Sub, a direct wholly owned Subsidiary of
Parent, with and into the Company (the "Merger"); and

                  WHEREAS, for federal income tax purposes, it is intended that
the Merger and related transactions shall qualify as a reorganization within
the meaning of Section 368(a) of the Internal Revenue Code of 1986 (the
"Code").

                  NOW, THEREFORE, in consideration of the premises and of the
mutual covenants, representations, warranties and agreements contained herein,
the parties hereto agree as follows:


                                   ARTICLE I

                          DEFINITIONS AND CONSTRUCTION

         1.1 Certain Definitions. As used in this Agreement, the following
terms shall have the following meanings unless the context otherwise requires:

                  "ACM" shall mean Associated Communications of Mexico, Inc., a
Delaware corporation.

                  "Adjustment Indebtedness" shall be equal to the sum of (i)
the total Indebtedness of the Company and its Subsidiaries on a consolidated
basis at the Effective Time (excluding any Indebtedness of Portatel and its
Subsidiaries to the extent that such Indebtedness has not been guaranteed by or
otherwise become the legal obligation of the Company or any of its
Subsidiaries) plus (ii) the amount of the cash payments required to be made by
the Surviving Entity pursuant to Sections 3.6(a) and 3.7 (with such amount
determined as if such payments were made as of the Effective Time so as not to
include any increase in such amount in respect of any period after the
Effective Time).

                  An "Affiliate" of any Person shall mean any other Person
which, directly or indirectly, controls or is controlled by or is under common
control with such Person. A Person shall be deemed to "control," be "controlled
by" or be "under common control with" any other Person if such other
Person possesses, directly or indirectly, power to direct or cause the
direction of the management or



<PAGE>

policies of such Person whether through the ownership of voting securities or
partnership interests, by contract or otherwise. Notwithstanding the foregoing,
for purposes of this Agreement, (a) neither the Company nor any of its
Affiliates shall be deemed to be an Affiliate of Teligent or any of its
Affiliates, (b) neither Teligent nor any of its Affiliates shall be deemed to
be an Affiliate of the Company or any of its Affiliates, (c) neither the
Company nor any of its Affiliates (other than Grupo Holdings and ACM) shall be
deemed to be an Affiliate of Portatel or any of its Affiliates and (d) neither
Portatel nor any of its Affiliates (other than Grupo Holdings and ACM) shall be
deemed to be Affiliates of the Company or any of its Affiliates. For purposes
of this Agreement, neither Parent nor any of its Affiliates (other than the
Liberty Affiliates) shall be deemed to be an Affiliate of Liberty or any other
Liberty Affiliate, and neither Liberty nor any other Liberty Affiliate shall be
deemed to be an Affiliate of Parent or any of its other Affiliates (other than
any Liberty Affiliate).

                  "Agreement" shall mean this Agreement and Plan of Merger,
including all Exhibits and Schedules hereto.

                  "Asset Disposition" shall mean a sale, lease or encumbrance
or other disposition of a business or assets comprising a business, in either
case outside of the ordinary course of business, including any transaction
described in Section 7.4(f) of the Company Disclosure Schedule, or any
disposition of Investment Securities.

                  "Assumed Liberty Stock Price" means $34.50 (after giving
effect to the Liberty May Stock Split).

                  "Class A Liberty Group Stock" shall mean the Class A Liberty
Media Group Stock, par value $1.00 per share, of Parent.

                  "Class B Liberty Group Stock" shall mean the Class B Liberty
Media Group Stock, par value $1.00 per share, of Parent.

                  "Closing" shall mean the consummation of the transactions
contemplated by this Agreement.

                  "Closing Date" shall mean the date on which the Closing
occurs pursuant to Section 2.2.

                  "Commission" shall mean the Securities and Exchange
Commission.

                  "Common Stock Group" shall have the meaning given to such
term in the Parent Charter.

                  "Company Class A Common Stock" shall mean the Common Stock,
Class A, par value $.10 per share, of the Company, together with the associated
Right(s).


                                       2
<PAGE>

                  "Company Class B Common Stock" shall mean the Common Stock,
Class B, par value $.10 per share, of the Company, together with the associated
Right(s).

                  "Company Disclosure Schedule" shall mean the disclosure
schedule, dated as of the date of this Agreement, delivered by the Company to
each of Parent and Liberty.

                  "Company Stock" shall mean the Company Class A Common Stock
and the Company Class B Common Stock.

                  "Company Stock Number" shall mean the fully diluted number of
shares of outstanding Company Stock immediately prior to the Effective Time
assuming the exercise, exchange or conversion of all Company Stock Options or
other Convertible Securities exercisable or exchangeable for, or convertible
into, Company Stock (but excluding any Rollover Options and any Company Stock
Options to be canceled by the making of the cash payments described in Section
3.7), all as certified to Parent and Liberty by the Company's Chief Financial
Officer.

                  "Company Stock Plan" shall mean the Company's Amended and
Restated 1994 Stock Option and Incentive Award Plan.

                  "Covered Entity" shall have the meaning ascribed thereto in
the Parent Charter.

                  "DGCL" shall mean the General Corporation Law of the State of
Delaware.

                  "Effective Time" shall mean the time when the Merger of
Merger Sub with and into the Company becomes effective under applicable law as
provided in Section 2.1(a).

                  "Exchange Act" shall mean the Securities Exchange Act of
1934, and the rules and regulations thereunder.

                  "FCC" shall mean the Federal Communications Commission.

                  "FCC Consents" shall mean the actions by the FCC granting its
consent to the transfer of control of the FCC Licenses in connection with the
consummation of the transactions contemplated hereby.

                  "FCC Licenses" shall mean all licenses, permits, construction
permits and other authorizations issued by the FCC in connection with the
business and operations of the Company, its Subsidiaries and Teligent and its
Subsidiaries.

                  "GAAP" shall mean generally accepted accounting principles as
accepted by the accounting profession in the United States as in effect from
time to time.



                                       3
<PAGE>



                  "Governmental Consent" shall mean any consent, approval,
order or authorization of or other action by any Governmental Entity.

                  "Governmental Filing" shall mean any registration,
qualification, declaration or filing with or any notice to any Governmental
Entity.

                  "Grupo Holdings" shall mean Grupo Holdings, LLC, a Delaware
limited liability company.

                  "Hart-Scott Act" shall mean the Hart-Scott-Rodino Antitrust
Improvements Act of 1976, and the rules and regulations thereunder.

                  "Indebtedness" shall mean, with respect to any Person,
without duplication (whether or not the recourse of the lender is to the whole
of the assets of such Person or only to a portion thereof), (i) every liability
of such Person (excluding intercompany accounts between the Company and any
wholly owned Subsidiary of the Company or between wholly owned Subsidiaries of
the Company) (A) for borrowed money, (B) evidenced by notes, bonds, debentures
or other similar instruments (whether or not negotiable), (C) for reimbursement
of amounts drawn under letters of credit, bankers' acceptances or similar
facilities issued for the account of such Person, (D) issued or assumed as the
deferred purchase price of property or services (excluding contingent payment
obligations and accounts payable) or (E) relating to a capitalized lease
obligation and all debt attributable to sale/leaseback transactions of such
Person; (ii) every liability of others of the kind described in the preceding
clause (i) which such Person has guaranteed or which is otherwise its legal
liability, in either case to the extent required pursuant to GAAP to be set
forth as a liability on a balance sheet of such Person.

                  "Indebtedness Threshold" shall initially be $187 million. If
the Closing does not occur on or before July 31, 1999, the Indebtedness
Threshold shall be increased to $191 million on August 1, 1999 and thereafter
shall be increased by an additional $4 million on the first day of each
subsequent calendar month until the Closing Date. The Indebtedness Threshold
shall be adjusted downward on a dollar-for-dollar basis by the net cash
proceeds retained by the Company or any Subsidiary from any Asset Disposition
following the date hereof (including the transaction described on Section
7.4(f) of the Company Disclosure Schedule), following the payment of any fees,
other expenses and taxes in connection therewith actually paid prior to the
Closing.

                  "Inter-Group Agreement" shall mean the Inter-Group Agreement,
dated as of March 9, 1999, between and among Parent, Liberty, Liberty Media
Group LLC and certain other Persons specified therein, as the same may be
amended or supplemented from time to time.

                  "Law" shall mean any foreign or domestic law, statute, code,
ordinance, rule, regulation promulgated, or order, judgment, writ, stipulation,
award, injunction or decree promulgated or entered by a Governmental Entity.

                  "Liberty Affiliate" shall mean Liberty, each Covered Entity
and each Subsidiary of Liberty or a Covered Entity and from and after the
Effective Time, the Surviving Entity.



                                       4
<PAGE>


                  "Liberty Group Information" means the information regarding
the Liberty Media Group described in Section 6.5.

                  "Liberty Group Stock Number" shall mean the sum of (i)
51,778,920 (after giving effect to the Liberty May Stock Split) (or, if lower,
the sum of (A) the number of shares of Class A Liberty Group Stock and (B) 1.02
times the number of shares of Class B Liberty Group Stock, in either case held
by the Company and its wholly owned Subsidiaries as of the Effective Time, and
(C) 23,000,000 (after giving effect to the Liberty May Stock Split)), and (ii)
the Option Proceeds Number, if any, less (iii) the Reduction Number.

                  "Liberty Impeding Transaction" means an acquisition or other
transaction, or a definitive agreement with respect thereto, engaged in or
entered into by Liberty or any Subsidiary of Liberty following the date hereof
which makes it reasonably likely that any of the conditions set forth in
Sections 8.1(c), 8.2(d), 8.2(e), 8.2(f), 8.2(g), 8.2(j), 8.3(b), 8.3(d) through
(h), 8.4(b) or 8.4(d) through (h) will not be satisfied.

                  "Liberty Material Adverse Effect" shall mean a material
adverse effect on the business, assets or financial condition of Liberty and
its Subsidiaries, taken as a whole, provided that none of the factors set forth
in Schedule 1.1(a) shall be deemed by itself or by themselves, either alone or
in combination, to constitute a Liberty Material Adverse Effect.

                  "Liberty May Stock Split" shall mean the stock dividend of
one share of Class A Liberty Group Stock or Class B Liberty Group Stock for
each share of Class A Liberty Group Stock of Class B Liberty Group Stock,
respectively, with a record date of May 28, 1999 to be paid on June 11, 1999.

                  "Liberty Media Group" shall have the meaning given to such
term in the Parent Charter.

                  "Lien" shall mean any security interest, mortgage, pledge,
hypothecation, charge, claim, option, right to acquire, adverse interest,
assignment, deposit arrangement, encumbrance, restriction, lien (statutory or
other), or preference, priority or other security agreement or preferential
arrangement of any kind or nature whatsoever (including any conditional sale or
other title retention agreement, any financing lease involving substantially
the same economic effect as any of the foregoing, and the filing of any
financing statement under the Uniform Commercial Code or comparable law of any
jurisdiction).

                  "Material Adverse Effect" shall mean a material adverse
effect on the business, assets or financial condition of the Company and its
Subsidiaries, taken as a whole, provided that none of the factors set forth in
Section 1.1(a) of the Company Disclosure Schedule shall be deemed by itself or
by themselves, either alone or in combination, to constitute a Material Adverse
Effect.

                  "Merger" shall have the meaning specified in the preamble
hereto.


                                       5
<PAGE>



                  "Merger Consideration" shall mean the Parent Common Stock and
Class A Liberty Group Stock into which shares of Company Stock are converted
pursuant to Section 2.3(a)(i).

                  "NYSE" shall mean The New York Stock Exchange.

                  "Option Proceeds Number" shall be equal to:

                                            (x) an amount equal to the product
                   of (i) the number of shares of Class A Liberty Group Stock
                   subject to Rollover Options (if any), and (ii) the per share
                   exercise price(s) of such Rollover Options divided by

                                            (y) the Assumed Liberty Stock
                   Price.

                  "Parent Adverse Effect" shall mean any of (i) an effect which
is adverse or burdensome with respect to, or could reasonably be expected to
prevent, interfere with or delay, any of the Parent May Transactions or the
consummation thereof, (ii) an effect which is adverse to, or burdensome on the
business, assets, liabilities, condition (financial or otherwise), results of
operations, operations or prospects of any material business of Parent or its
Subsidiaries being conducted on the date hereof or contemplated by the Parent
May Transactions (other than, in each case, any such effect which is
insignificant in nature or consequence) or (iii) an adverse effect on the
relationship between Parent or any of its Subsidiaries and any federal or state
Governmental Entity having jurisdiction over any material business of Parent or
its Subsidiaries or the operations or assets thereof (other than such an effect
which is insignificant in nature or consequence), provided that no restriction,
condition or limitation relating to the conduct of business or other
relationships between Teligent and/or TruePosition or their respective
Subsidiaries, on the one hand, and Parent or any of its Subsidiaries or
Affiliates, on the other hand, which restriction, condition or limitation could
have been effected unilaterally by Teligent or TruePosition or any such
Subsidiary by such Person (A) refusing to enter into an agreement with Parent
or its Subsidiaries or Affiliates or (B) refusing to enter into an agreement
(or otherwise conducting business) with Parent or its Subsidiaries or
Affiliates other than in accordance with such restriction, condition or
limitation, shall be deemed to constitute or have a Parent Adverse Effect.

                  "Parent Charter" shall mean the Amended Certificate of
Incorporation of Parent.

                  "Parent Common Stock" shall mean the Common Stock, par value
$1.00 per share, of Parent.

                  "Parent Common Stock Number" shall mean the lesser of (i)
19,719,274 and (ii) the aggregate number of shares of Parent Common Stock held
by the Company and its wholly owned Subsidiaries as of the Effective Time.

                  "Parent Impeding Transaction" means an acquisition or other
transaction, or a definitive agreement with respect thereto, engaged in or
entered into by Parent or any Subsidiary of Parent (which may include the
Parent May Transactions) which, in the good faith judgment of the

                                       6
<PAGE>


Company, makes it reasonably likely that any of the conditions set forth in
Sections 8.1(c), 8.2(d), 8.2(e), 8.2(f), 8.2(g), 8.2(j), 8.3(b), 8.3(d) through
(h), 8.4(b) or 8.4(d) through (h) will not be satisfied.

                  "Parent May Transactions" means each of the transactions
announced in early May, 1999, between the Parent and each of MediaOne Group,
Inc., Comcast Corporation, Lenfest Communications, Inc. and Microsoft
Corporation, as each such transaction may be amended from time to time.

                  "Permitted Encumbrances" shall mean the following Liens with
respect to the properties and assets of the Company: (a) Liens for taxes,
assessments or other governmental charges or levies not at the time delinquent
or thereafter payable without penalty or being contested in good faith by
appropriate proceedings and for which adequate reserves in accordance with GAAP
shall have been set aside on the Company's books; (b) Liens of carriers,
warehousemen, mechanics, materialmen and landlords incurred in the ordinary
course of business for sums not overdue or being contested in good faith by
appropriate proceedings and for which adequate reserves in accordance with GAAP
shall have been set aside on the Company's books; (c) Liens incurred in the
ordinary course of business in connection with workmen's compensation,
unemployment insurance or other forms of governmental insurance or benefits, or
to secure performance of tenders, statutory obligations, leases and contracts
(other than for borrowed money) entered into in the ordinary course of business
or to secure obligations on surety or appeal bonds; (d) purchase money security
interests or Liens on property acquired or held by the Company in the ordinary
course of business to secure the purchase price of such property or to secure
Indebtedness incurred solely for the purpose of financing the acquisition of
such property; (e) pledges of Investment Securities to secure Indebtedness
under the margin or other lines of credit, or renewals thereof, described in
Sections 4.1 and 4.17 of the Company Disclosure Schedule (provided, that any
Indebtedness outstanding thereunder as of the Closing shall be included in the
calculation of the amount of Adjustment Indebtedness); and (f) easements,
restrictions and other defects of title which are not, in the aggregate,
material and which do not, individually or in the aggregate, materially and
adversely affect the Company's use or occupancy of the property affected
thereby.

                  "Permitted Teligent Disposition" means a transaction, or
definitive agreement with respect thereto, which would result in the
disposition by the Company of its interest in Teligent in which the Company
would receive net after-tax consideration for such interest as a result of such
transaction (without taking into account the effect of the utilization of any
net operating losses or other similar tax benefits) having an aggregate fair
market value, as of the date of execution of the definitive agreement providing
for such Permitted Teligent Disposition, at least equivalent to the aggregate
market value, as of the date hereof, of the Teligent Stock owned by the Company
as of the date hereof; provided, that any non-cash consideration received by
the Company as part of any such transaction shall consist solely (except for
cash in lieu of fractional shares) of freely tradeable common equity securities
(for this purpose any such securities received subject to Rule 145 under the
Securities Act shall be deemed to be freely tradeable if such securities are
received with customary demand and piggyback registration rights) of a publicly
traded issuer (the issuance of


                                       7
<PAGE>

which has been registered under the Securities Act) of a class or series, which
prior to the announcement of such transaction, has either an unaffiliated
public float of more than $10 billion or a market capitalization of more than
$25 billion.

                  "Person" shall mean an individual, partnership, corporation,
limited liability company, trust, unincorporated organization, association, or
joint venture or a government, agency, political subdivision, or
instrumentality thereof.

                  "Portatel" shall mean Grupo Portatel, S.A. de C.V., a Mexican
corporation.

                  "Post-Merger Restructuring Transactions" shall mean the
matters described in paragraphs 6(b) through 15 of Exhibit 7.15 hereto.

                  "Pre-Merger Restructuring Transactions"shall mean the matters
described in paragraphs 1 through 6(a) of Exhibit 7.15 hereto.

                  "Reduction Number" shall be the number equal to the sum of

                                            (x) the quotient obtained by
                  dividing (1) the amount (if positive) by which (A) the amount
                  of Adjustment Indebtedness, as certified to Parent and
                  Liberty by the Chief Financial Officer of the Company,
                  exceeds (B) the Indebtedness Threshold by (2) the Assumed
                  Liberty Stock Price, and

                                            (y) the number of shares of Class A
                  Liberty Group Stock that become subject to Rollover Options
                  (if any) at the Effective Time pursuant to Section 2.3(b).

                  "Restriction", with respect to any capital stock or other
security, shall mean any voting or other trust or agreement, option, warrant,
escrow arrangement, proxy, buy-sell agreement, power of attorney or other
Contract, any law, rule, regulation, order, judgment or decree which,
conditionally or unconditionally, (i) grants to any Person the right to
purchase or otherwise acquire, or obligates any Person to purchase or sell or
otherwise acquire, dispose of or issue, or otherwise results or, whether upon
the occurrence of any event or with notice or lapse of time or both or
otherwise, may result in any person acquiring, (A) any of such capital stock or
other security; (B) any of the proceeds of, or any distributions paid or which
are or may become payable with respect to, any of such capital stock or other
security; or (C) any interest in such capital stock or other security or any
such proceeds or distributions; (ii) restricts or, whether upon the occurrence
of any event or with notice or lapse of time or both or otherwise, may restrict
the transfer or voting of, or the exercise of any rights or the enjoyment of
any benefits arising by reason of ownership of, any such capital stock or other
security or any such proceeds or distributions; or (iii) creates or, whether
upon the occurrence of any event or with notice or lapse of time or both or
otherwise, may create a Lien or purported Lien affecting such capital stock or
other security, proceeds or distributions.


                                       8
<PAGE>


                  "Rights" shall mean the rights issued or issuable under the
Rights Agreement.

                  "Rights Agent" shall mean ChaseMellon Shareholder Services,
L.L.C. (successor to Mellon Bank, N.A.), or its successor, in its capacity as
Rights Agents under the Rights Agreement.

                  "Rights Agreement" shall mean the Rights Agreement dated as
of December 15, 1994, by and between the Company and the Rights Agent, as
amended by Amendment No. 1 thereto dated as of March 17, 1999 and Amendment No.
2 thereto entered into prior to the execution and delivery of this Agreement
and the Voting Agreement.

                  "Securities Act" shall mean the Securities Act of 1933, and
the rules and regulations thereunder.

                  "Specified Post-Merger Restructuring Transactions" shall mean
the Cayman Continuation if the Delaware Continuation does not occur, and the
Continuations if both the Cayman Continuation and Delaware Continuation occur.

                  "Subsidiary" when used with respect to any party, means any
corporation or other organization, whether incorporated or unincorporated, of
which such party or any other Subsidiary of such party is a general partner or
at least 50% of the securities or other interests having by their terms
ordinary voting power to elect at least 50% of the Board of Directors or others
performing similar functions with respect to such corporation or other
organization is directly or indirectly owned or controlled by such party, by
any one or more of its Subsidiaries, or by such party and one or more of its
Subsidiaries. Notwithstanding the foregoing, for purposes of this Agreement,
(i) so long as the Company holds no more than 50% of the outstanding voting
equity interests in Teligent, the Company's Subsidiaries shall be deemed not to
include Teligent and its Subsidiaries, whether or not they otherwise would be
Subsidiaries of the Company under the foregoing definition, (ii) the Company's
Subsidiaries shall be deemed not to include Portatel and its Subsidiaries,
whether or not they otherwise would be Subsidiaries of the Company under the
foregoing definition, and (iii) Parent's Subsidiaries shall be deemed not to
include Liberty or any Liberty Affiliate, whether or not they otherwise would
be Subsidiaries of Parent under the foregoing definition.

                  "Surviving Entity" shall mean the Company as the surviving
entity in the Merger as provided in Section 2.1(a).

                  "Synthetic Liberty Group Exchange Ratio" shall mean 2.04
(after giving effect to the Liberty May Stock Split)

                  "Tax Sharing Agreement" shall mean the Tax Sharing Agreement,
dated as of March 9, 1999, by and among Parent, Liberty and certain other
Persons specified therein, as the same may be amended from time to time.

                  "Teligent" shall mean Teligent, Inc., a Delaware corporation.


                                       9
<PAGE>


                  "Teligent Class A Stock" shall mean the Common Stock, Class
A, par value $0.01 per share, of Teligent.

                  "Teligent Class B Stock" shall mean the Common Stock, Class
B, par value $0.01 per share, of Teligent.

                  "Teligent Interest Material Adverse Effect" shall mean a
material adverse effect on the validity or nature of the Company's direct or
indirect interest in Teligent and/or the rights and obligations associated
therewith (including any material Liens or Restrictions thereon), provided that
none of the factors set forth in Section 1.1(b) of the Company Disclosure
Schedule shall be deemed by itself or themselves, either alone or in
combination, to constitute a Teligent Interest Material Adverse Effect.

                  "Teligent Material Adverse Effect" shall mean a material
adverse effect on the business, assets or financial condition of Teligent and
its Subsidiaries, taken as a whole, provided that none of the factors set forth
in Section 1.1(c) of the Company Disclosure Schedule shall be deemed by itself
or by themselves, either alone or in combination, to constitute a Teligent
Material Adverse Effect.

                  "Teligent Stock" shall mean, collectively, the Teligent Class
A Stock and the Teligent Class B Stock.

                  "Transaction Adverse Effect" means a condition, event or
effect which prohibits the parties from consummating the transactions
contemplated hereby, including without limitation the Pre-Merger Restructuring
Transactions or the Post-Merger Restructuring Transactions, or eviscerates the
effectiveness thereof, provided that none of the factors set forth in Section
1.1(d) of the Company Disclosure Schedule shall be deemed by itself or
themselves, alone or in combination, to constitute a Transaction Adverse
Effect.

                  "Transaction Agreements" shall mean this Agreement, the
Voting Agreement, the supplement to the Inter-Group Agreement to be entered
into in connection with this Agreement and the amendment to the Tax Sharing
Agreement to be entered into in connection with this Agreement.

                  "TruePosition" shall mean TruePosition, Inc., a Delaware
corporation and a wholly owned Subsidiary of the Company.

                  "TruePosition Stock Plan" shall mean the TruePosition, Inc.
1995 Amended and Restated Stock Incentive Plan.

         1.2 Additional Definitions. The following additional terms have the
meaning ascribed thereto in the Section indicated below next to such term:




                                      10
<PAGE>





Defined Term                                            Section
- ------------                                            -------

3.4(c)(ii) Delay Notice                                 3.4(c)(ii)
Alternative Proposal                                    7.5(a)
Applicable Period                                       7.5(b)
ARI                                                     3.9
Blocking Approval                                       3.4(c)(iv)
Blocking Approval Notice                                3.4(c)(iv)
BT                                                      4.22
Cayman Continuation                                     3.11
Cayman LLC                                              3.11
Certificates                                            2.4(b)
Certificate of Merger                                   2.1(a)
Claim                                                   7.12(a)
Class A Liberty Group Stock Exchange Ratio              2.3(a)(i)
Code                                                    Preamble
Company                                                 Preamble
Company Board                                           3.1
Company Charter                                         3.1
Company Plans                                           4.12(a)
Company Preferred Stock                                 4.3
Company SEC Reports                                     4.4(a)
Company Stock Option                                    2.3(b)
Company Teligent Shares                                 7.5(c)
Confidential Information                                7.2
Consolidated Returns                                    4.11
Continuations                                           3.11
Contract Consent                                        4.5(iv)
Contract Notice                                         4.5(iv)
Contract                                                4.5(v)
Convertible Securities                                  4.3
Delaware Continuation                                   3.11
Delaware LLC                                            3.11
Environmental and Health Laws                           4.9
ERISA                                                   4.12(a)
ERISA Affiliate                                         4.12(a)
Excess Shares                                           2.4(f)
Exchange Agent                                          2.4(a)
Exchange Agent Agreement                                2.4(a)
Exchange Fund                                           2.4(a)
Exchange Ratios                                         2.3(a)(i)
Executive Employment Agreements                         3.6(a)
Facilitating Approval                                   3.4(a)


                                      11
<PAGE>

Fairness Opinion                                        4.13
Fractional Fund                                         2.4(f)
Governmental Entity                                     4.5(vi)
Indemnified Liabilities                                 7.12(a)
Indemnified Party                                       7.12(a)
Injunction                                              3.4
Investment Security                                     4.17
IRS                                                     4.11
Liberty                                                 Preamble
Liberty Plans                                           3.5
Licenses                                                4.9
Local Approvals                                         4.5(ii)
Merger                                                  Preamble
Merger Proposal                                         3.1
Merger Sub                                              Preamble
MSI                                                     3.9
Option Payment                                          3.7
Parent                                                  Preamble
Parent Common Stock Exchange Ratio                      2.3(a)(i)
Parent May Approval                                     3.4(c)(ii)
Parent Preferred Stock                                  5.3
Parent Transaction                                      3.4(c)(i)
Party's Certificate                                     7.13
PBGC                                                    4.12(d)
Permits                                                 4.9
Proxy Statement                                         3.2(a)
Registration Statement                                  3.2(a)
Representatives                                         7.2
Required Filings                                        3.4
Rollover Election                                       3.7
Rollover Option                                         2.3(b)
Rule 145 Agreement                                      3.3
Section 3.4(c)(ii) Delay Notice                         3.4(c)(ii)
Section 3.4(c)(ii) Resumption Notice                    3.4(c)(ii)
Special Meeting                                         3.1
Special Purpose Sub                                     3.9
Superior Proposal                                       7.5(b)
Teligent 10-K                                           4.4(b)
Teligent Alternative Transaction                        7.5(c)
Teligent SEC Reports                                    4.4(b)
Termination Fee                                         9.2(a)
TruePosition Options                                    4.3
Violation                                               4.5(v)


                                      12
<PAGE>



Voting Agreement                                                       7.10
Voting Debt                                                            4.3

         1.3 Terms Generally. The definitions in Sections 1.1 and 1.2 shall
apply equally to both the singular and plural forms of the terms defined.
Whenever the context may require, any pronoun shall include the corresponding
masculine, feminine and neuter forms. The words "include", "includes" and
"including" shall be deemed to be followed by the phrase "without limitation".
The words "herein", "hereof" and "hereunder" and words of similar import refer
to this Agreement (including the Exhibits and Schedules) in its entirety and
not to any part hereof unless the context shall otherwise require. As used
herein, the term "to the Company's knowledge" or any similar term relating to
the knowledge of the Company means the actual knowledge of any of the officers
(determined in accordance with Rule 16a-1(f) under the Exchange Act as in
effect on the date hereof) or directors of the Company. All references herein
to Articles, Sections, Exhibits and Schedules shall be deemed references to
Articles and Sections of, and Exhibits and Schedules to, this Agreement unless
the context shall otherwise require. Unless the context shall otherwise
require, any references to any agreement or other instrument or statute or
regulation are to it as amended and supplemented from time to time (and, in the
case of a statute or regulation, to any successor provisions). Any reference in
this Agreement to a "day" or number of "days" (without the explicit
qualification of "business") shall be interpreted as a reference to a calendar
day or number of calendar days. If any action or notice is to be taken or given
on or by a particular calendar day, and such calendar day is not a business
day, then such action or notice shall be deferred until, or may be taken or
given on, the next business day.


                                   ARTICLE II

                         THE MERGER AND RELATED MATTERS

         2.1      The Merger.

                  (a) Merger; Effective Time. At the Effective Time and subject
to and upon the terms and conditions of this Agreement, Merger Sub shall, and
Parent shall cause Merger Sub to, merge with and into the Company in accordance
with the provisions of the DGCL, the separate corporate existence of Merger Sub
shall cease and the Company shall continue as the Surviving Entity. The
Effective Time shall occur upon the filing with the Secretary of State of the
State of Delaware a Certificate of Merger (the "Certificate of Merger")
substantially in the form of Exhibit 2.1(a) and executed in accordance with the
applicable provisions of the DGCL, or at such later time as may be agreed to by
Parent, Liberty and the Company and specified in the Certificate of Merger.
Provided that this Agreement has not been terminated pursuant to Article IX,
the parties will cause the Certificate of Merger to be filed as soon as
practicable after the Closing.

                  (b) Effects of the Merger. The Merger shall have the effect
set forth in Sections 259 and 261 of the DGCL. Without limiting the generality
of the foregoing, and subject thereto, at



                                      13
<PAGE>





the Effective Time, all the properties, rights, privileges, powers and
franchises of the Company and Merger Sub shall vest in the Surviving Entity,
and all debts, liabilities and duties of the Company and Merger Sub shall
become the debts, liabilities and duties of the Surviving Entity. If, at any
time after the Effective Time, the Surviving Entity considers or is advised
that any deeds, bills of sale, assignments, assurances or any other actions or
things are necessary or desirable to vest, perfect or confirm of record or
otherwise in the Surviving Entity its right, title or interest in, to or under
any of the rights, properties, or assets of either the Company or Merger Sub,
or otherwise to carry out the intent and purposes of this Agreement, the
officers and directors of the Surviving Entity will be authorized to execute
and deliver, in the name and on behalf of each of the Company and Merger Sub,
all such deeds, bills of sale, assignments and assurances and to take and do,
in the name and on behalf of each of the Company and Merger Sub, all such other
actions and things as the Board of Directors of the Surviving Entity may
determine to be necessary or desirable to vest, perfect or confirm any and all
right, title and interest in, to and under such rights, properties or assets in
the Surviving Entity or otherwise to carry out the intent and purposes of this
Agreement.

                  (c) Certificate of Incorporation and Bylaws of Surviving
Entity. At the Effective Time, the Certificate of Incorporation of the Company,
as in effect immediately prior to the Effective Time, shall be the Certificate
of Incorporation of the Surviving Entity until thereafter amended as provided
by law. At the Effective Time, the Bylaws of Merger Sub, a copy of which is
attached as Exhibit 2.1(c)(ii), as in effect immediately prior to the Effective
Time, shall be the Bylaws of the Surviving Entity until thereafter amended as
provided by law.

                  (d) Directors and Officers of Surviving Entity. At the
Effective Time, the directors of Merger Sub immediately prior to the Effective
Time shall be the directors of the Surviving Entity and all such directors will
hold office from the Effective Time until their respective successors are duly
elected or appointed and qualify in the manner provided in the Certificate of
Incorporation and Bylaws of the Surviving Entity, or as otherwise provided by
applicable law. At the Effective Time, the officers of Merger Sub immediately
prior to the Effective Time shall be the officers of the Surviving Entity and
all such officers will hold office until their respective successors are duly
appointed and qualify in the manner provided in the Bylaws of the Surviving
Entity, or as otherwise provided by applicable law.

         2.2 Closing. The Closing shall take place (i) at 10:00 a.m. (New York
time) at the offices of Baker & Botts, L.L.P., 599 Lexington Avenue, New York,
New York 10022, on the first business day following the date on which the last
of the conditions set forth in Article VIII (other than the filing of the
Certificate of Merger and other than any such conditions which by their terms
are not capable of being satisfied until the Closing Date) is satisfied or, if
permissible, waived (except that if such day falls within six business days
prior to the end of a fiscal quarter of Parent, the Closing shall not occur
until the first day of the next fiscal quarter of Parent), or (ii) on such
other date and at such other time or place as is mutually agreed by the parties
hereto.




                                      14
<PAGE>





         2.3      Conversion of Securities.

                  (a) Conversion of Company Securities. At the Effective Time,
by virtue of the Merger and without any action on the part of Parent, Merger
Sub, the Company or the holders of any of their securities:

                           (i) Each share of Company Class A Common Stock and
each share of Company Class B Common Stock outstanding immediately prior to the
Effective Time (other than such shares to be canceled in accordance with
Section 2.3(a)(iii) and subject to Section 2.4(f)) shall be converted into and
represent the right to receive, and shall be exchangeable for:

                                    (A) a number of shares (or a fraction of a
share) of Parent Common Stock equal to the quotient (rounded to the nearest
one-one thousandth of a share) obtained by dividing the Parent Common Stock
Number by the Company Stock Number (such quotient being referred to as the
"Parent Common Stock Exchange Ratio"), and

                                    (B) a number of shares (or a fraction of a
share) of Class A Liberty Group Stock equal to the quotient (rounded to the
nearest one-thousandth of a share) obtained by dividing the Liberty Group Stock
Number by the Company Stock Number (such quotient being referred to as the
"Class A Liberty Group Stock Exchange Ratio" and, together with the Parent
Common Stock Exchange Ratio, as the "Exchange Ratios").

                           (ii) All shares of Parent Common Stock and Class A
Liberty Group Stock issued pursuant to this Section 2.3(a) will be validly
issued, fully paid and non-assessable. All shares of Company Stock shall no
longer be outstanding and shall automatically be canceled and retired and shall
cease to exist, and each holder of a certificate representing any such shares
shall cease to have any rights with respect thereto, except the right to
receive the shares of Parent Common Stock and Class A Liberty Group Stock to be
issued pursuant to this Section 2.3(a) (and any dividends or other
distributions and any cash in lieu of a fractional share payable pursuant to
Sections 2.4(f) and 2.4(g)) with respect thereto upon the surrender of such
certificate in accordance with Section 2.4, without interest.

                           (iii) Each share of Company Stock that immediately
prior to the Effective Time is held by the Company as a treasury share shall be
canceled and retired without payment of any consideration thereof and without
any conversion thereof into the Merger Consideration.

                  (b) Treatment of Company Stock Options. Each outstanding
unexercised option to purchase shares of Company Stock under the Company Stock
Plan (a "Company Stock Option") shall, at the Effective Time, become fully
vested and exercisable, and each Company Stock Option with respect to which a
Rollover Election has been timely made by the holder thereof in accordance with
Section 3.7 shall, at the Effective Time, by virtue of the Merger and without
any further action on the part of the holder thereof, be assumed by Parent and
converted into a fully vested and exercisable option to purchase that number of
shares of Class A Liberty Group Stock determined by



                                      15
<PAGE>





multiplying the number of shares of Company Stock subject to such Company Stock
Option immediately prior to the Effective Time by the Synthetic Liberty Group
Exchange Ratio, at an exercise price per share of Class A Liberty Group Stock
equal to the exercise price per share of such Company Stock Option immediately
prior to the Effective Time divided by the Synthetic Liberty Group Exchange
Ratio, rounded down to the nearest whole cent (a "Rollover Option"). If the
foregoing calculation results in a Rollover Option being exercisable for a
fraction of a share of Class A Liberty Group Stock, then the number of shares
of Class A Liberty Group Stock subject to such option shall be rounded up to
the nearest whole number of shares. The terms and conditions of each Rollover
Option shall otherwise remain as set forth in the Company Stock Option
converted into such Rollover Option. All shares of Class A Liberty Group Stock
issued upon the exercise of any Rollover Option will be validly issued, fully
paid and non-assessable. Parent shall use commercially reasonable efforts to
cause the issuance of shares of Class A Liberty Group Stock issuable upon
exercise of any Rollover Options to have been registered, at or as promptly as
reasonably practicable following the Effective Time, pursuant to an effective
registration statement on Form S-8 (or other comparable form) under the
Securities Act and Parent shall use its commercially reasonable efforts to
maintain the effectiveness of such registration statement thereafter for so
long as any Rollover Options remain exercisable.

                  (c) Conversion of Merger Sub Stock. At the Effective Time, by
virtue of the Merger and without any action on the part of Parent, Merger Sub,
the Company or the holders of any of their securities, each share of capital
stock of Merger Sub outstanding immediately prior to the Effective Time shall
be converted into one share of the Common Stock, Class A, par value $.10 per
share, of the Surviving Entity.

         2.4      Exchange of Shares.

                  (a) Appointment of Exchange Agent; Exchange Fund. On or
before the Closing Date, Parent shall enter into an agreement (the "Exchange
Agent Agreement") with [Equiserve], or at Parent's option another exchange
agent selected by Parent and reasonably acceptable to the Company (the
"Exchange Agent"), authorizing such Exchange Agent to act as Exchange Agent
hereunder. Promptly following the Effective Time, Parent shall make available
to the Exchange Agent, for the benefit of those Persons who immediately prior
to the Effective Time were the holders of Company Stock, certificates
representing a sufficient number of shares of Parent Common Stock and Class A
Liberty Group Common Stock required to effect the delivery of the aggregate
Merger Consideration issuable pursuant to Section 2.3 (the certificates
representing Parent Common Stock and Class A Liberty Group Common Stock
comprising such aggregate Merger Consideration being hereinafter referred to as
the "Exchange Fund").

                  (b) Letter of Transmittal. As soon as reasonably practicable
after the Effective Time, the Exchange Agent shall mail to each holder of
record of a certificate or certificates which immediately prior to the
Effective Time represented issued and outstanding shares of Company Stock (the
"Certificates") whose shares were converted into the right to receive the
Merger Consideration: (i) a notice of the effectiveness of the Merger and (ii)
a letter of transmittal (which


                                      16
<PAGE>


shall state that delivery shall be effected, and risk of loss and title to the
Certificates shall pass, only upon delivery of the Certificates to the Exchange
Agent) with instructions for use in effecting the surrender and exchange of the
Certificates. Such notice, letter of transmittal and instructions shall contain
such provisions and be in such form as Parent and the Company reasonably
specify.

                  (c) Exchange Procedure. Promptly following the surrender, in
accordance with such instructions, of a Certificate to the Exchange Agent (or
such other agent or agents as may be appointed by the Exchange Agent or Parent
pursuant to the Exchange Agent Agreement), together with such letter of
transmittal (duly executed) and any other documents required by such
instructions or letter of transmittal, the Exchange Agent shall, subject to
Section 2.4(d), cause to be distributed to the person in whose name such
Certificate shall have been issued (i) a certificate registered in the name of
such person representing the number of whole shares of Parent Common Stock into
which the shares of Company Stock previously represented by the surrendered
Certificate shall have been converted at the Effective Time pursuant to this
Article II, (ii) a Certificate registered in the name of such person
representing the number of whole shares of Class A Liberty Group Stock into
which the shares of Company Stock previously represented by the surrendered
Certificate shall have been converted at the Effective Time pursuant to this
Article II and (iii) payment (which shall be made by check) of any cash payable
in lieu of fractional shares of Parent Common Stock and Class A Liberty Group
Stock pursuant to Section 2.4(f). Each Certificate so surrendered shall be
canceled.

                  (d) Unregistered Transfers of Company Stock. In the event of
a transfer of ownership of Company Stock which is not registered in the
transfer records of the Company, certificates representing the proper number of
whole shares of Parent Common Stock and Class A Liberty Group Stock may be
issued (and cash in lieu of fractional shares of Parent Common Stock and Class
A Liberty Group Stock may be paid) to the transferee if the Certificate
representing such Company Stock surrendered to the Exchange Agent in accordance
with Section 2.4(c) is properly endorsed for transfer or is accompanied by
appropriate and properly endorsed stock powers and is otherwise in proper form
to effect such transfer, if the person requesting such transfer pays to the
Exchange Agent any transfer or other taxes payable by reason of such transfer
or establishes to the satisfaction of the Exchange Agent that such taxes have
been paid or are not required to be paid and if such person establishes to the
satisfaction of Parent that such transfer would not violate applicable Federal
or state securities laws.

                  (e) Lost, Stolen or Destroyed Certificates. If any
Certificate shall have been lost, stolen or destroyed, upon the making of an
affidavit of that fact by the person claiming such Certificate to be lost,
stolen or destroyed satisfactory to Parent and complying with any other
reasonable requirements imposed by Parent, Parent will cause to be delivered to
such person in respect of such lost, stolen or destroyed Certificate the Merger
Consideration (and any cash in lieu of fractional shares of Parent Common Stock
and Class A Liberty Group Common Stock to which such person is entitled
pursuant to Section 2.4(f)) in respect thereof as determined in accordance with
this Article II. Parent may, in its discretion, require the owner of such lost,
stolen or destroyed Certificate to give Parent a bond in such reasonable sum as
it may direct as indemnity against any


                                      17
<PAGE>



claim that may be made against Parent or the Surviving Entity with respect to
the Certificate alleged to have been lost, stolen or destroyed.

                  (f) No Fractional Shares. No fractional shares of Parent
Common Stock or Class A Liberty Group Stock shall be issued in the Merger. In
lieu of any such fractional shares, each holder of shares of Company Stock who
would otherwise have been entitled to a fraction of a share of Parent Common
Stock or Class A Liberty Group Stock upon surrender of Certificates for
exchange pursuant to this Section 2.4 will be paid an amount in cash (without
interest) equal to such holder's proportionate interest in the proceeds from
the sale or sales in the open market by the Exchange Agent, on behalf of all
such holders, of the aggregate fractional shares of Parent Common Stock and
Class A Liberty Group Stock which, but for this Section 2.4(f), would be
issuable in the Merger. As soon as practicable following the Effective Time,
the Exchange Agent shall determine the excess of (i) the number of full shares
of Parent Common Stock and Class A Liberty Group Stock, respectively, delivered
to the Exchange Agent by Parent over (ii) the aggregate number of full shares
of Parent Common Stock and Class A Liberty Group Stock, respectively, to be
distributed to former holders of Company Stock (such excess being herein called
the "Excess Shares"). The Exchange Agent, as agent for the former holders of
Company Stock, shall sell the Excess Shares at the prevailing prices on the
NYSE. The sales of the Excess Shares by the Exchange Agent shall be executed on
the NYSE through one or more member firms of the NYSE and shall be executed in
round lots to the extent practicable. All commissions, transfer taxes and other
out-of-pocket transaction costs, if any, including the expenses and
compensation, if any, of the Exchange Agent, incurred in connection with such
sale of Excess Shares, shall be deducted from the proceeds otherwise
distributable to the holders of Common Stock. Until the proceeds of such sale
have been distributed to the former holders of Company Stock, the Exchange
Agent will hold such proceeds in trust for such former holders (the "Fractional
Fund"). As soon as practicable after the determination of the amount of cash to
be paid to former holders of Company Stock in lieu of any fractional interests,
the Exchange Agent shall make available in accordance with this Agreement such
amounts to such former holders.

                  (g) No Dividends Before Surrender of Certificates. No
dividends or other distributions declared or made after the Effective Time with
respect to Parent Common Stock or Class A Liberty Group Stock with a record
date after the Effective Time shall be paid to the holder of any unsurrendered
Certificate with respect to the shares of Parent Common Stock or Class A
Liberty Group Stock represented thereby, until the holder of record of such
Certificate shall surrender such Certificate as provided herein. Following
surrender of any such Certificate, there shall be paid to the record holder of
the certificates representing whole shares of Parent Common Stock or Class A
Liberty Group Stock issued in exchange therefor, without interest, (i) at the
time of such surrender, the amount of dividends or other distributions, if any,
with a record date after the Effective Time and payable with respect to such
whole shares of Parent Common Stock or Class A Liberty Group Stock between the
Effective Time and the time of such surrender, and (ii) at the appropriate
payment date, the amount of dividends or other distributions, if any, with a
record date after the Effective Time but prior to surrender and with a payment
date subsequent to surrender payable with respect to such whole shares of
Parent Common Stock or Class A Liberty Group Stock.


                                      18
<PAGE>



                  (h) No Further Ownership Rights in Company Stock. All shares
of Parent Common Stock and Class A Liberty Group Stock issued and all cash in
lieu of fractional shares paid upon the surrender for exchange of shares of
Company Stock in accordance with the terms hereof shall be deemed to have been
issued and paid in full satisfaction of all rights pertaining to such shares of
Company Stock, and there shall be no further registration of transfers on the
stock transfer books of the Surviving Entity of the shares of Company Stock
which were outstanding immediately prior to the Effective Time. Subject to
Section 2.4(i), if, after the Effective Time, Certificates are presented to the
Surviving Entity for any reason, they shall be canceled and exchanged as
provided in this Article II.

                  (i) Termination of Exchange Fund and Fractional Fund;
Abandoned Property Laws. Any portion of the Exchange Fund and the Fractional
Fund (and any dividends or other distributions with respect to such portion of
the Exchange Fund) which remains unclaimed by the former stockholders of the
Company for six months after the Effective Time shall be delivered to Parent,
upon demand of Parent, and any former stockholders of the Company shall, after
such delivery, look only to Parent for payment of their claim for the
applicable Merger Consideration (and any such dividends or other distributions)
or for any cash in lieu of fractional shares of Parent Common Stock or Class A
Liberty Group Stock, as applicable. Neither Parent nor the Surviving Entity
shall be liable to any holder of shares of Company Stock or Parent Common Stock
and Class A Liberty Group Stock for any such shares, for any dividends or
distributions with respect thereto or for any cash in lieu of fractional shares
which may be delivered to any public official pursuant to any abandoned
property, escheat or similar law.

         2.5 Changes in Parent Common Stock, Class A Liberty Group Stock or
Class B Liberty Group Stock. If prior to the Effective Time, the Parent Common
Stock, Class A Liberty Group Stock or Class B Liberty Group Stock shall be
recapitalized or reclassified or Parent shall effect any stock dividend, stock
split, or reverse stock split of Parent Common Stock, Class A Liberty Group
Stock or Class B Liberty Group Stock, or shall otherwise effect any transaction
that changes the shares of Parent Common Stock, Class A Liberty Group Stock or
Class B Liberty Group Stock into any other securities (including securities of
another corporation), or shall make any other dividend or distribution on the
shares of Parent Common Stock, Class A Liberty Group Stock or Class B Liberty
Group Stock (other than normal quarterly cash dividends as the same may be
adjusted from time to time), then the respective Exchange Ratios, the Synthetic
Liberty Group Exchange Ratio, the Assumed Liberty Stock Price, the terms of the
foregoing exchanges, and the terms of the conversion of any Rollover Options as
provided in Section 2.3(b) will, as appropriate, be adjusted to reflect such
split, combination, transaction, dividend or other distribution or change.





                                      19
<PAGE>





                                  ARTICLE III

                                CERTAIN ACTIONS

         3.1 Stockholder Meeting. The Company and its Board of Directors (the
"Company Board") shall take all action necessary in accordance with applicable
law and the Company's Restated Certificate of Incorporation (the "Company
Charter") and Bylaws to duly call and hold, as soon as reasonably practicable
after the date hereof, a meeting of the Company's stockholders (the "Special
Meeting") for the purpose of considering and voting upon the approval and
adoption of this Agreement and the Merger contemplated hereby (the "Merger
Proposal"). The only matters the Company shall propose to be acted on by the
Company's stockholders at the Special Meeting shall be the Merger Proposal and
related matters incidental to the consummation of the Merger and, if so
determined by the Company, such other matters as are customarily presented to
stockholders at an annual meeting. Subject to Sections 7.5(b)(iii) and (iv),
the Company Board will recommend that the Company's stockholders vote in favor
of approval of the Merger Proposal and the Company will use its commercially
reasonable efforts to solicit from its stockholders proxies in favor of such
approval and to secure the vote of stockholders of the Company required by the
DGCL and the Company Charter to effect the Merger. The Company shall not
require any vote greater than a majority of the votes entitled to be cast by
the holders of the issued and outstanding shares of Company Stock for approval
of the Merger Proposal.

         3.2      Registration Statement and Other Commission Filings.

                  (a) Registration Statement and Proxy Statement. Subject to
Section 3.4(c), as soon as reasonably practicable after the execution of this
Agreement, Parent, Liberty and the Company shall cooperate in the preparation
of, and the Company shall file confidentially with the Commission, a
preliminary proxy statement in form and substance reasonably satisfactory to
each of Parent, Liberty and the Company, and, following resolution of comments,
if any, of the Commission on the preliminary proxy statement, Liberty and
Parent shall prepare and Parent shall file with the Commission a registration
statement on Form S-4 (the "Registration Statement"), containing a form of
prospectus that includes such proxy statement (as amended or supplemented, if
applicable) registering under the Securities Act the issuance of the shares of
Parent Common Stock and Class A Liberty Group Stock issuable upon conversion of
Company Stock pursuant to the Merger. Subject to Section 3.4(c), each of
Parent, Liberty and the Company shall use commercially reasonable efforts to
respond to any comments of the Commission, to have the Registration Statement
declared effective as promptly as practicable after such filing and to cause
the proxy statement as filed with the Commission and as thereafter amended or
supplemented to be approved by the Commission and mailed to the Company's
stockholders at the earliest practicable time (such proxy statement in the
definitive form mailed to the Company's stockholders, as thereafter amended or
supplemented, being referred to as the "Proxy Statement"). The Company, Liberty
and Parent will notify each other party promptly of the receipt of any comments
from the Commission or its staff and of any request by the Commission or its
staff for amendments or supplements to the Registration Statement, the Proxy
Statement or any other filing or for additional information, and will supply
the


                                      20
<PAGE>


other parties with copies of all correspondence between it and any of its
representatives, on the one hand, and the Commission or its staff on the other
hand, with respect to the Registration Statement, the Proxy Statement, the
Merger or any filing with the Commission relating thereto. Whenever any party
hereto becomes aware of any event which is required to be set forth in an
amendment or supplement to the Proxy Statement, the Registration Statement or
any other filing with the Commission in connection with this Agreement or the
transactions contemplated hereby, such party shall promptly inform the other
parties of such occurrence and cooperate in the prompt filing with the
Commission or its staff or any other governmental officials, and/or mailing to
stockholders of the Company, of such amendment or supplement which shall comply
in all material respects with the provisions of the Securities Act and the
Exchange Act. The Company, and Parent and Liberty, each shall promptly provide
the other (or its counsel) copies of all filings made by such party with any
Governmental Entity in connection with this Agreement or the transactions
contemplated hereby. For further clarity, the parties agree that the Parent May
Transactions and any transactions provided for in the Inter-Group Agreement or
the Tax Sharing Agreement are not transactions contemplated by this Agreement,
but the Pre-Merger Restructuring Transactions and the Post-Merger Restructuring
Transactions are transactions contemplated by this Agreement.

                  (b) Company Board Recommendation. The Proxy Statement shall
include the recommendation of the Company Board in favor of approval and
adoption of this Agreement and the Merger, except to the extent the Company
Board shall have withdrawn or modified its approval or recommendation of this
Agreement or the Merger as permitted by Section 7.5(b)(iii) or (iv). The
Company shall use all reasonable efforts to cause the Proxy Statement to be
mailed to its stockholders as promptly as practicable after the Registration
Statement becomes effective.

                  (c) Comfort Letters. The Company will use its reasonable best
efforts to cause to be delivered to Parent and Liberty a letter of Ernst &
Young LLP, the Company's independent auditors, dated a date within two business
days before the date on which the Registration Statement becomes effective and
addressed to Parent, in form reasonably satisfactory to Parent and Liberty and
customary in scope and substance for letters delivered by nationally recognized
independent auditors in connection with registration statements similar to the
Registration Statement.

         3.3 Identification of Rule 145 Affiliates. Within 30 days after the
execution of this Agreement, the Company shall deliver to Parent and Liberty a
letter identifying all Persons who the Company knows are or who the Company has
reason to believe may be, as of the date of the Special Meeting, "affiliates"
of the Company for purposes of Rule 145 under the Securities Act. The Company
will supplement such letter, if applicable, with the name and address of any
other Person subsequently identified by either Parent or the Company, as the
case may be (unless, in the case of Parent, an opinion of outside counsel to
the Company reasonably acceptable to Parent is provided to Parent that such
Person is not an affiliate), as a Person who may be deemed to be such an
affiliate; provided, however, that no such Person identified by Parent or the
Company, as the case may be, shall remain on such list of affiliates if Parent
or the Company, as the case may be, shall receive from the other party, on or
before the date of the Special Meeting, an opinion of outside counsel
reasonably satisfactory to Parent to the effect that such Person is not such as
affiliate. The Company shall use its reasonable best efforts to cause each
Person who is identified as an "affiliate" in the



                                      21
<PAGE>





letter referred to above (as so supplemented) to deliver to Parent, on or prior
to the Closing Date, a written agreement, in substantially the form annexed
hereto as Exhibit 3.3 (each a "Rule 145 Agreement"). Parent shall not be
required to maintain the effectiveness of the Registration Statement or any
other registration statement under the Securities Act for the purposes of
resale of Parent Common Stock or Class A Liberty Group Stock received by such
affiliates in the Merger.

         3.4      Reasonable Efforts.

                  (a) Subject to the terms and conditions of this Agreement and
applicable law, each of the parties hereto shall use its reasonable efforts to
take, or cause to be taken, all actions, and to do, or cause to be done, all
things reasonably necessary, proper or advisable to consummate and make
effective the transactions contemplated by this Agreement as soon as reasonably
practicable, including such actions or things as any other party hereto may
reasonably request in order to cause any of the conditions to such other
party's obligation to consummate such transactions specified in Article VIII to
be fully satisfied. Without limiting the generality of the foregoing, the
parties shall (and shall cause their respective directors, officers and
Subsidiaries, and use their reasonable efforts to cause their respective
Affiliates, employees, agents, attorneys, accountants and representatives, to)
consult and fully cooperate with and provide reasonable assistance to each
other in (i) the preparation and filing with the Commission of the Registration
Statement, the preliminary proxy statement referred to in Section 3.2 and the
Proxy Statement, and any necessary amendments or supplements to any of the
foregoing, including providing information to the other parties as may be
reasonably required in connection therewith; (ii) seeking to have such
Registration Statement declared effective, by the Commission as soon as
reasonably practicable after filing; (iii) taking such actions as may
reasonably be required under applicable state securities or blue sky laws in
connection with the issuance of the Merger Consideration; (iv) using
commercially reasonable efforts to obtain all consents, approvals, waivers,
licenses, permits, authorizations, registrations, qualifications, or other
permission or action by, and to give all necessary notices to and to make all
necessary filings with and applications and submissions to, any Governmental
Entity or other Person required in order to cause any of the conditions to each
other party's obligation to consummate the Merger and the transactions
contemplated hereby as specified in Article VIII to be fully satisfied
(collectively the "Required Filings"); (v) filing all pre-merger notification
and report forms required under the Hart-Scott Act and responding to any
requests for additional information made by any Governmental Entity pursuant to
the Hart-Scott Act; (vi) using commercially reasonable efforts to lift any
permanent or preliminary injunction or restraining order or other similar order
issued or entered by any court or Governmental Entity (an "Injunction") of any
type referred to in Section 8.2(d), 8.3(d) or 8.4(d), or to cause to be
rescinded or rendered inapplicable any statute, rule or regulation of any type
referred to in Section 8.2(e); (vii) using commercially reasonable efforts to
obtain the tax opinions referred to in Sections 8.2(j), 8.3(h) and 8.4(h);
(viii) providing all such information about such party, its Subsidiaries and
its officers, directors, partners and Affiliates and making all applications
and filings as may be reasonably requested in connection with any of the
foregoing; and (ix) in general, using commercially reasonable efforts to
consummate and make effective the transactions contemplated hereby; provided,
however, that in making any such filing or in order to obtain any consent,
approval, waiver, license, permit, authorization, registration, qualification,
or



                                      22
<PAGE>





other permission or action or the lifting of any Injunction, or causing to be
rescinded or rendered inapplicable any statute, rule or regulation, or in
taking any other action referred to in this sentence (a "Facilitating
Approval"), (I) Parent and its Subsidiaries and Affiliates shall not be
required to pay any consideration (other than customary filing fees and the
like), divest or otherwise rearrange the composition of any assets or agree to
any conditions, restrictions, requirements or other obligations which have, or
are reasonably likely to have, a Parent Adverse Effect, (II) subject to Section
3.4(e), neither Liberty and its Subsidiaries and Affiliates nor the Company and
its Subsidiaries and Affiliates shall be required to pay any material
consideration, divest or otherwise rearrange the composition of any material
assets or agree to any conditions or requirements which are, or are reasonably
likely to be, materially adverse or materially burdensome to Liberty or the
Company, as applicable, (III) without Liberty's prior consent (but subject to
clause (ii) of the proviso in Section 3.4(b)), the Company and its Subsidiaries
and Affiliates shall not amend in any material respect any material License or
Contract, pay any material consideration, divest or otherwise rearrange the
composition of any material assets or agree to any material conditions or
requirements or make any material agreement or reach any understanding or
arrangement with respect to the foregoing, in any such case other than in the
ordinary course of business, and (IV) Liberty and the Company recognize that
Parent may allocate resources in whatever manner it deems appropriate
(including to the Parent May Transactions) in greater numbers and amounts, and
more promptly, than to the transactions contemplated by this Agreement. For
purposes of the foregoing proviso, the parties agree (without limitation of
clause (ii) of the proviso in Section 3.4(b)) that (1) the Company's interest
in Teligent is a material asset, (2) any material transactions involving the
Company's interest in Teligent would be outside the ordinary course of
business, and (3) subject to Section 3.4(e), Liberty shall not be required to
agree or consent to a divestiture or rearrangement of the Company's interest in
Teligent, or to any conditions or requirements relating to the Company's
interest in Teligent (including, without limitation, any such conditions or
requirements relating to the ownership and governance of Teligent following the
Merger) other than those contained in the agreements and other instruments set
forth in Section 4.1(2)(a) of the Company Disclosure Schedule. Prior to a party
making any application to or filing with any Governmental Entity or other
Person in connection with this Agreement, such party shall provide the other
parties with drafts thereof and afford the other parties a reasonable
opportunity to comment on such drafts.

                  (b) Notwithstanding the foregoing or any other provision of
this Agreement, the parties agree and acknowledge that in order to obtain a
Facilitating Approval, the Company or its Subsidiaries may take any reasonable
action with respect to any property, asset (including any License or Contract)
or business of the Company or its Subsidiaries (other than the Company's equity
interests in Teligent or Parent (including the Parent Common Stock, the Class A
Liberty Group Stock and the Class B Liberty Group Stock)), including divesting
or otherwise rearranging the composition thereof in a commercially reasonable
manner, agreeing to any reasonable conditions or requirements (including,
without limitation, reasonable restrictions or limitations on the ability of
the Company or any of its Subsidiaries to engage in certain businesses
following the Merger that do not purport to apply to Parent, Liberty or any of
their respective Subsidiaries and Affiliates (other than the Company and its
Subsidiaries)), or entering into any reasonable agreement, understanding or
arrangement providing for the foregoing; provided, that (i) none of the
foregoing shall purport to


                                      23
<PAGE>



be binding with respect to or otherwise affect any property, asset or business
of Parent, Liberty and their respective Subsidiaries and Affiliates (other than
those of the Company and its Subsidiaries) and (ii) in the event (A) of a
Parent Impeding Transaction or a Liberty Impeding Transaction or (B) of the
delivery of a Blocking Approval Notice, or (C) of the delivery of a Section
3.4(c)(ii) Delay Notice, the Company may engage in a Permitted Teligent
Disposition to the extent that the Company determines in good faith that such
Permitted Teligent Disposition would, or would be reasonably likely to,
facilitate the Closing, in which event (x) the Company shall reasonably advise
Liberty regarding the status and proposed material terms of any possible
Permitted Teligent Disposition, except to the extent the Company reasonably
determines in its good faith judgment, after consultation with the Company's
outside legal counsel, that to do so would be, or would be reasonably likely to
be, inconsistent with the proper discharge of fiduciary duties (of the
Company's representatives on Teligent's board of directors or otherwise) under
applicable law and (y) the parties acknowledge that any action taken by the
Company or Teligent or any of their respective Subsidiaries, or by any officer,
director, employee, agent or representative of the Company or Teligent or of
their respective Subsidiaries acting in their capacity as such, in connection
with entering into an agreement providing for, or consummating, a Permitted
Teligent Disposition pursuant to and in accordance with this clause (ii), shall
not constitute a breach or violation of any provision of Sections 7.4 or 7.5 or
of any representation, warranty or other provision hereof to the extent
applicable to the direct or indirect interest of the Company in Teligent.

                  (c) Notwithstanding anything to the contrary in this
Agreement or any other document executed in connection herewith, the parties
hereto agree and acknowledge that

                           (i) except to the extent set forth in Sections 3.11,
3.12, 3.13, 3.14, 5.4, 7.13 and 7.15 and Section 1.1 of the supplement to the
Inter-Group Agreement being executed in connection herewith, (A) neither this
Section 3.4 nor any other provision of this Agreement or any other document
executed in connection herewith shall prevent, inhibit or in any way restrict
the right of Parent or any of its Subsidiaries or Affiliates from engaging in
any merger, acquisition, business combination, stock repurchase, stock issuance
or other transaction or business opportunity (a "Parent Transaction"),
including the Parent May Transactions and any Parent Impeding Transaction, even
if such Parent Transaction would materially interfere with the transactions
contemplated by this Agreement, and (B) the pursuit and/or consummation by
Parent or any of its Subsidiaries of any Parent Transaction (including any or
all of the Parent May Transactions) shall be deemed not to be a breach of any
provision of this Agreement or any such other document;

                           (ii) if Parent determines in good faith that there
is a reasonable possibility that it would not obtain a Facilitating Approval
(which term, as used in this subparagraph (ii), relates to the matters
described in the definition of "Facilitating Approval," but to be obtained with
the purpose of consummating the Parent May Transactions, as opposed to the
transactions contemplated hereby) required in connection with a Parent May
Transaction (a "Parent May Approval") or would obtain such Parent May Approval
only subject to a condition, limitation or restriction that could reasonably be
expected to have a Parent Adverse Effect, in either case, as a result of the
consummation of the Merger, then Parent shall promptly notify Liberty and the
Company of such


                                      24
<PAGE>



determination and of its intention to delay consummation of the Merger (a
"Section 3.4(c)(ii) Delay Notice"), in which event, notwithstanding any other
provision of this Agreement, Parent may delay the consummation of the Merger
until the earlier of (A) such time as Parent obtains such Parent May Approval
and (B) such time as Parent can no longer reasonably conclude that there is a
reasonable possibility that such Parent May Approval would not be obtained or
would be obtained only subject to any such condition, limitation or
restriction, in either case were the Merger consummated. Upon the occurrence of
either condition described in clauses (A) or (B) above, Parent shall give
prompt notice to Liberty and the Company to such effect (a "3.4(c)(ii)
Resumption Notice"). Following the delivery of a Section 3.4(c)(ii) Delay
Notice, the Company may terminate this Agreement on five business days written
notice to Parent and Liberty (provided, that on the date of such termination
Parent has not delivered a 3.4(c)(ii) Resumption Notice).

                           (iii) Parent may delay the filing of the
Registration Statement with the Commission (and, if so requested by Parent, the
Company shall delay the filing of the preliminary proxy statement referred to
in Section 3.2(a)) until such time no later than 45 days following the filing
of the preliminary proxy statement relating to the Parent May Transactions with
the Commission as may be so requested by Parent, but in any event no later than
September 30, 1999, in any such case to the extent that Parent determines in
good faith that there is a reasonable possibility that the failure to delay
such action would interfere with or delay the Parent May Transactions
(including the mailing of the proxy statement/prospectus relating to the Parent
May Transactions);

                           (iv) if Parent determines in good faith that it is
reasonably likely that it will not obtain a Parent May Approval or will obtain
such Parent May Approval only subject to a condition, limitation or restriction
that would have a Parent Adverse Effect, in either case, as a result of the
prior receipt of a Facilitating Approval required in connection with the Merger
(a "Blocking Approval"), then Parent shall give prompt written notice of such
determination to the Company and Liberty (any such notice, a "Blocking Approval
Notice"), whereupon the parties shall, and shall cause their respective
Subsidiaries and Affiliates to, cooperate with one another and use commercially
reasonable efforts to cause to be removed the impediment with respect to such
Parent May Approval caused by the Blocking Approval. If as of the date that is
65 business days following the date of such Blocking Approval Notice to the
Company and Liberty (or, if earlier, the date that Parent could otherwise
consummate the Parent May Transactions were this Agreement terminated (or the
impediments with respect to all Blocking Approvals were removed)), either the
Company or Parent may terminate this Agreement on five business days written
notice to each of the other parties (provided that at the time of such further
notice Parent continues to believe in good faith that it is reasonably likely
that it will not obtain such Parent May Approval, or will obtain such Parent
May Approval only subject to a condition, limitation or restriction that would
have a Parent Adverse Effect, in either case as a result of the prior receipt
of such Blocking Approval notwithstanding any efforts of the parties pursuant
to the previous sentence to remove the impediment with respect to such Blocking
Approval).




                                      25
<PAGE>





                  (d) Subject to Section 9.2(c) with respect to Section 3.4(e),
the parties acknowledge that, except as otherwise provided in Sections 3.11,
3.12, 3.13, 3.14, 5.4 and 7.13, neither this Section 3.4 nor any other
provision of this Agreement shall restrict the right or ability of Liberty or
any of its Subsidiaries or Affiliates from pursuing or engaging in any
acquisition or other transaction which could, or could reasonably be expected
to, adversely affect or delay the ability of Parent or Merger Sub to consummate
the Merger, including any Liberty Impeding Transaction.

                  (e) If, prior to the Closing, Parent, Liberty, or any of
their respective Subsidiaries or Affiliates enters into an agreement providing
for a Parent Impeding Transaction or a Liberty Impeding Transaction, then, upon
the request of the Company, Liberty will use, and will cause each applicable
Liberty Affiliate to use, its commercially reasonable efforts to cause the
specified conditions to the consummation of the Merger listed in the
definitions of the terms Parent Impeding Transaction and Liberty Impeding
Transaction to be satisfied, to the extent practicable on the part of Liberty
and the other Liberty Affiliates, notwithstanding such agreement or the
consummation of such Parent Impeding Transaction or such Liberty Impeding
Transaction, including the making of commercially reasonable commitments and
undertakings to the FCC or other Governmental Entities providing for a
Permitted Teligent Disposition (which shall include, to the extent necessary
and appropriate, commercially reasonable undertakings by Liberty to place the
Company's interest in Teligent into a voting trust (or to make other similar
commercially reasonable arrangements) following the Closing, but only so long
as the terms of any such voting trust (or other similar arrangements) do not
permit or require the disposition of such interest in any transaction that does
not meet the criteria of a Permitted Teligent Disposition). Notwithstanding the
foregoing, neither Liberty nor any Liberty Affiliate shall be required pursuant
to the previous sentence to take any action that would materially impair the
intended benefits to Parent or Liberty of such Parent Impeding Transaction or
Liberty Impeding Transaction, as the case may be. If at any time after 60 days
following the execution of an agreement providing for a Parent Impeding
Transaction or a Liberty Impeding Transaction (notwithstanding Liberty's
compliance with the foregoing provisions of this paragraph or the Company's or
Teligent's entering into an agreement providing for a Permitted Teligent
Disposition in accordance with clause (ii) of the proviso in Section 3.4(b)),
it continues to be reasonably likely (i) in the Company's good faith judgment
that as a result of such Parent Impeding Transaction or (ii) as a result of
such Liberty Impeding Transaction, one or more of the conditions to
consummation of the Merger specified in the definitions of such terms will not
be satisfied, then the Company may terminate this Agreement on 10 days written
notice to Parent and Liberty (provided that at the end of such 10 day period it
remains reasonably likely that one or more of such conditions will not be
satisfied as a result of such Parent Impeding Transaction or Liberty Impeding
Transaction).

                  (f) Liberty agrees with the Company that: (i) if a particular
condition to closing set forth in Article VIII hereof (other than Section 8.4)
has been satisfied, Liberty will not notify Parent that such condition has not
been satisfied pursuant to Section 8.3(l) and (ii) assuming the accuracy of the
certifications to be made therein, Liberty will deliver the officer's
certificate contemplated by Section 8.3(m) to Parent.



                                      26
<PAGE>





         3.5 Employee Matters. Each individual who was an employee of the
Company immediately prior to the Effective Time who continues employment with
the Surviving Entity following the Merger (i) shall be entitled to participate
in the "employee benefit plans", as defined in Section 3(3) of ERISA, and other
employee benefit and compensation plans, programs, policies and arrangements
maintained by Parent or Liberty for the benefit of Liberty employees to the
same extent as similarly situated employees of Liberty (the "Liberty Plans"),
(ii) shall receive credit for such employee's past service with the Company as
of the Effective Time for purposes of eligibility and vesting under the Liberty
Plans, including for purposes of eligibility and participation under severance
policies and plans, to the extent such service was credited under the Company
Plans on the Closing Date; (iii) shall not be subject to any waiting periods or
limitations on benefits for pre-existing conditions under the Liberty Plans,
including any group health and disability plans, except to the extent such
employees were subject to such limitations under the Company Plans, (iv) shall
be given credit for amounts paid under a corresponding benefit plan during the
same period for purposes of applying deductibles, copayments and out-of-pocket
maximums as though such amounts had been paid in accordance with the terms and
conditions of the Liberty Plan, and (v) shall be given credit for all accrued
but unused vacation time credited to such employee by the Company as of the
Effective Time. Following the Effective Time, Liberty shall cause the Surviving
Entity to honor in accordance with their respective terms all employment,
severance and other compensation agreements and arrangements listed in Section
4.12(j) of the Company Disclosure Schedule or thereafter entered into as
permitted by this Agreement which are between the Company or any of its
Subsidiaries and any director, officer or employee thereof.

         3.6 Company Severance Obligations. (a) Except as provided herein,
Parent hereby agrees to assume and to honor without modification the severance
and severance payment provisions of the employment agreements listed as items 1
and 2 of Section 4.12(j) of the Company Disclosure Schedule (the "Executive
Employment Agreements"), with such payments thereunder to be made by Parent (or
by Parent causing the Surviving Entity to make such payments) on the date which
is the later of (i) three months after the Effective Time and (ii) January 3,
2000 (with the amount of such required payments to be increased by an amount
calculated from the Effective Time to the date of such payment at a rate equal
to 10% per annum, compounded quarterly). Each of Parent, Liberty and the
Company acknowledges that consummation of the Merger as provided herein will
constitute "Good Reason" for purposes of the Executive Employment Agreements
and, accordingly, as of the Effective Time, each of the individuals party to
such agreements will be entitled to a cash severance payment as provided in
such agreements in the manner described in the previous sentence.

                  (b) Prior to the Closing, the Company shall take such action
as is necessary in accordance with the terms of such agreement to terminate,
effective as of the Effective Time the Executive Employment Agreements, subject
to the making of the cash severance payments referred to in Section 3.6(a).
Following the Effective Time and the payment of the cash severance payments
referred to in Section 3.6(a), none of the Surviving Entity, Parent or Liberty
shall have any obligations or liability arising out of the Executive Employment
Agreements.



                                      27
<PAGE>



                  (c) Prior to the Closing, the Company shall take such action
as is necessary with respect to the Split Dollar Agreements listed as items 3
and 4 in Section 4.12(a) of the Company Disclosure Schedule so that, following
the Effective Time, none of the Surviving Entity, Parent or Liberty shall have
any obligations or liability arising out of such agreement following the
Effective Time.

         3.7 Company Stock Plan. Promptly following the mailing of the Proxy
Statement, the Company shall cause a notice to be sent to each holder of
Company Stock Options, whether vested or unvested, in such form as is
reasonably agreed upon by the Company, Parent and Liberty, giving such holders
the option to elect (a "Rollover Election") to have such Company Stock Option
be assumed by Parent as set forth in Section 2.3(b); provided, that the Company
agrees to take such actions as may be required such that holders of Company
Stock Options representing no more than two million shares of Company Stock may
make a Rollover Election (and no Rollover Election with respect to an amount of
Company Stock Options in excess of such amount shall be effective hereunder).
The notice sent to holders of Company Stock Options will specify that, in order
to be valid, a Rollover Election must be received by Liberty and Parent no
later than five business days prior to the Closing. Prior to the Effective
Time, the Company (or the appropriate members of the Company Board) will take
appropriate action under the Company Stock Plan (including obtaining any
required consents from holders of Company Stock Options) such that each
unexercised Company Stock Option with respect to which no valid Rollover
Election was made will be canceled effective at the Effective Time in exchange
for a cash payment (the "Option Payment") to be made by Parent or the Surviving
Entity on the date which is the later of (i) three months after the Effective
Time and (ii) January 3, 2000, in an amount equal to the product of (a) the
number of shares of Company Stock subject to such Company Stock Option at the
time of such cancellation (whether or not vested), multiplied by (b) the
difference, if positive, between (i) $71.45 minus (ii) the exercise price per
share of such Company Stock Option at the time of such cancellation (with the
amount of the Option Payment to be increased by an amount calculated from the
Effective Time to the date of such payment at a rate equal to 10% per annum,
compounded quarterly). Such payments shall be subject to applicable tax
withholding. Parent hereby agrees to assume and to make, or to cause the
Surviving Entity to make, the cash payments referred to in this Section 3.7 in
the manner described in the previous sentence. The Company agrees to take such
action as may be required to amend the terms of the Company Stock Options that
become Rollover Options such that, in the event of a change in applicable law
that makes the issuance of shares of Class A Liberty Group Stock upon exercise
of a Rollover Options taxable to Parent or any member of its consolidated group
for United States federal income tax purposes, such Rollover Option will be
exercisable upon payment of the applicable exercise price for an amount in cash
equal to the then fair market value of the shares of Class A Liberty otherwise
issuable upon such exercise in lieu of the issuance of any such shares of Class
A Liberty Group Stock.

         3.8 Teligent Board. The Company or a Subsidiary thereof shall take all
action necessary to cause to be elected to Teligent's board of directors,
effective immediately prior to the Effective Time, three persons or such lesser
number designated by Liberty by written notice to the Company not less than ten
business days prior to the Closing.


                                      28
<PAGE>



         3.9 Pre-Merger Restructuring Transactions. Immediately prior to the
Effective Time, the Company will (i) contribute all of the outstanding capital
stock of Microwave Services, Inc. ("MSI") as an equity contribution to a
newly-formed wholly owned limited liability company subsidiary of the Company
("Special Purpose Sub"), which entity shall have no assets other than such
shares of capital stock of MSI so contributed and which shall not have engaged
in any business or activity other than any business or activity related to the
holding of such shares of capital stock of MSI, (ii) cause Associated
Investments, Inc. to be merged with and into the Company and (iii) if the
Company deems it necessary or appropriate, contribute all of the outstanding
capital stock of Associated Radio, Inc. ("ARI") as an equity contribution to a
newly-formed wholly owned subsidiary of the Company, which entity shall have no
assets other than such shares of ARI so contributed and which shall not have
engaged in any business or activity other than any business or activity related
to the holding of such shares of capital stock of ARI.

         3.10 TruePosition Stock Plan. The Company will cause the TruePosition
Stock Plan to be amended to the extent, if any, required, or cause other
necessary action, if any, to be taken with respect to the TruePosition Stock
Plan, so that no TruePosition Options or other rights granted pursuant to the
TruePosition Stock Plan will vest, accelerate or become exercisable as a result
of the Merger or the other transactions contemplated hereby.

         3.11 Conversions; Tax Treatment of LLCs. At the Effective Time,
Liberty shall request that Parent take or cause to be taken all actions that
are necessary to (a) cause the status of the Surviving Entity as a Delaware
corporation to terminate by continuing the Surviving Entity, pursuant to
Section 390 of the DGCL and applicable Cayman Island Law, as a limited
liability company under the laws of the Cayman Islands (a "Cayman LLC") (the
"Cayman Continuation") and (b) thereafter cause the status of the Surviving
Entity as a Cayman LLC to terminate by continuing the Surviving Entity,
pursuant to Section 18-212 of the Delaware Limited Liability Company Act and
applicable Cayman Island Law, as a limited liability company under the laws of
the state of Delaware (a "Delaware LLC") (the "Delaware Continuation" and,
together with the Cayman Continuation, the "Continuations"). As soon as
reasonably practicable after receipt of a request described in the immediately
preceding sentence, Parent shall take the requested action, to the extent
permitted by applicable Law. Except to the extent otherwise required pursuant
to a "determination" within the meaning of Section 1313(a) of the Code, Parent
shall, and shall cause its Subsidiaries to, treat the Surviving Entity as a
disregarded entity (within the meaning of Treasury Regulation Section
301.7701-3) for United States federal income tax purposes for the entire time
that it is a Cayman LLC and, in the absence of a relevant change in
circumstances after the date of the Delaware Continuation, for at least two
years after becoming a Delaware LLC including, without limitation, by filing or
causing to be filed (or not filing or causing not to be filed) all elections
specifically and reasonably requested by Liberty as are necessary to allow the
Surviving Entity to be so disregarded. For purposes of this Section 3.11, the
term "Surviving Entity" shall refer to the Cayman LLC and the Delaware LLC.

         3.12     Acquisition of Company Stock.



                                      29
<PAGE>


                  (a) On and after the date hereof and through the Effective
Time, Parent and Liberty shall not, and each shall cause its respective
Subsidiaries and Affiliates not to, acquire any shares of or interests in stock
of the Company or rights to acquire shares of or interests in stock of the
Company other than pursuant to the Merger or this Agreement; provided, however,
that this Section 3.12(a) shall not prohibit (i) any Parent Transaction (or the
acquisition of shares of or interests in stock of the Company pursuant thereto)
so long as a principal purpose of such transaction is not the acquisition of
shares of or interests in stock of the Company, (ii) any direct or indirect
acquisition by Liberty or any member of the Liberty Media Group so long as a
principal purpose of such transaction is not the acquisition of shares of or
interests in stock of the Company, or (iii) the acquisition of any securities
by or for the benefit of any employee benefit plan.

                  (b) Notwithstanding any other provision of this Agreement, if
Parent or any Subsidiary of Parent which is a member of the Common Stock Group
(i) has acquired any shares of or interests in stock of the Company on or prior
to the date hereof and such acquisition of shares of or interests in stock of
the Company would not have been made but for a plan that includes the Merger,
or (ii) acquires prior to the Effective Time any shares of or interests in
stock of the Company in any direct or indirect acquisition in which gain or
loss is recognized by the Person who directly held such shares or interests
immediately prior to such acquisition or, following such acquisition, the
adjusted tax basis of such shares or interests in the hands of the Person that
holds them is not solely determined by the adjusted tax basis of such shares or
interests in the hands of the Person that held them immediately before such
acquisition, Parent or such Subsidiary of Parent shall sell such shares of or
interests in Company Stock in the open market at least five business days prior
to the Closing Date (or, if such acquisition occurs within ten business days
prior to the anticipated Closing Date, then prior to the Effective Time),
excluding for purposes of this sentence any shares of or interests in stock of
the Company (x) that are acquired by or for the benefit of an employee benefit
plan or the Liberty Media Group or (y) are acquired pursuant to the Merger, the
Inter-Group Agreement, the Tax Sharing Agreement, the Pre-Merger Restructuring
Transactions, the Post-Merger Restructuring Transactions or any document
referred to therein or executed in connection therewith to which the Company,
Liberty or any of their respective Subsidiaries or Affiliates is a party.

                  (c) Notwithstanding the foregoing provisions of this Section
3.12, as of the date hereof, Parent and its Subsidiaries that are members of
the Common Stock Group do not, and as of the Effective Time Parent and its
Subsidiaries that are members of the Common Stock Group will not, own or have
any rights to acquire (which rights are not subject to any significant
condition other than payment of consideration (it being understood and agreed
that the Parent May Transactions are subject to significant conditions as of
the date hereof other than the payment of consideration)) more than 5% of the
shares of Company Stock (other than pursuant to the Merger, the Inter-Group
Agreement, the Tax Sharing Agreement, the Pre-Merger Restructuring
Transactions, the Post-Merger Restructuring Transactions or any document
referred to therein or executed in connection therewith to which the Company,
Liberty or any of their respective Subsidiaries or Affiliates is a party),
outstanding on the date hereof excluding any shares of or interests in stock of
the Company which may be owned by or for the benefit of any (i) employee
benefit plan of Parent, Liberty or any of their respective Subsidiaries or (ii)
the Liberty Media Group.


                                      30
<PAGE>



                  (d) Notwithstanding any other provision of this Agreement, if
Liberty or any of its Subsidiaries which are members of the Liberty Media Group
has acquired or acquires prior to the Effective Time any shares of or interests
in stock of the Company in any direct or indirect acquisition (other than
rights to acquire Company Stock pursuant to the Merger and the 90,000 shares of
Company Stock owned by Liberty Ventures Group LLC), Liberty or such Subsidiary
shall sell such shares of or interests in Company Stock in the open market at
least five business days prior to the Closing Date, excluding for purposes of
this sentence any shares of or interests in stock of the Company that are
acquired by or for the benefit of an employee benefit plan of Liberty or any
such Subsidiary. Liberty and its Subsidiaries which are members of the Liberty
Media Group have not requested, and will not request prior to the Effective
Time, that Parent or any other member of the Common Stock Group own or acquire
any shares of or interests in stock of the Company for or on behalf of the
Liberty Media Group (except for the acquisition of shares of Company Stock
pursuant to the Merger and the ownership of 90,000 shares of Company Stock held
by Liberty Ventures Group LLC) unless such shares of or interests in Company
Stock are acquired in a direct or indirect acquisition in which a principal
purpose of such acquisition was not to acquire such shares of or interests in
Company Stock and Liberty sells such shares of or interests in Company Stock in
the open market at least five business days prior to the Closing Date. Unless
the preceding sentence of this Section 3.12(d) will be complied with by Liberty
and its Subsidiaries, Liberty and its Subsidiaries and Affiliates will not
execute in connection with the Merger, the Merger Agreement, the Inter-Group
Agreement, the Tax Sharing Agreement, the Pre-Merger Restructuring
Transactions, the Post-Merger Restructuring Transactions, or any document
referred to therein, any other document that would require Parent or any member
of the Common Stock Group to acquire or own any shares of or interests in stock
of the Company (other than the acquisition of shares of Company Stock pursuant
to the Merger and the ownership of 90,000 shares of Company Stock held by
Liberty Ventures Group LLC), without the prior written approval of the Company.

                  (e) The Company and its Subsidiaries and Affiliates will not
execute in connection with the Merger, the Merger Agreement (or any document
referred to therein), the Pre-Merger Restructuring Transactions or the
Post-Merger Restructuring Transactions, any other document that would require
Parent or any member of the Common Stock Group to acquire or own any shares of
or interests in stock of the Company (other than the acquisition of shares of
Company Stock pursuant to the Merger and the ownership of 90,000 shares of
Company Stock held by Liberty Ventures Group LLC), without the prior written
approval of Liberty.

         3.13 Expenses. Except as may otherwise be set forth in the Transaction
Agreements or any document referred to therein or executed in connection
therewith to which the Company, Liberty or any of their respective Subsidiaries
or Affiliates is a party, each of Parent and Merger Sub (i) has not paid and
will not pay, directly or indirectly (which does not include any payments by
Liberty or any allocations pursuant to the Parent Charter or any member of the
Liberty Media Group) any expenses of any of the holders of Company Stock
incurred in connection with the Merger and (ii) has not agreed to assume and
will not directly or indirectly (which does not include any payments by Liberty
or any allocations pursuant to the Parent Charter or any member of the Liberty
Media Group), assume any expense or other liability, whether fixed or
contingent, of any holder of


                                      31
<PAGE>



Company Stock. Liberty and its Subsidiaries and Affiliates will not execute in
connection with the Transaction Agreements any other document that would
require Parent or any member of the Common Stock Group (i) to pay, directly or
indirectly, any expenses of any of the holders of Company Stock incurred in
connection with the Merger or (ii) to assume, directly or indirectly, any
expense or other liability, whether fixed or contingent, of any holder of
Company Stock, without the prior written approval of the Company. The Company
and its Subsidiaries and Affiliates will not execute in connection with the
Merger Agreement, the Voting Agreement or any document referred to therein, any
other document that would require Parent or any member of the Common Stock
Group (i) to pay, directly or indirectly, any expenses of any of the holders of
Company Stock incurred in connection with the Merger or (ii) to assume,
directly or indirectly, any expense or other liability, whether fixed or
contingent, of any holder of Company Stock, without the prior written approval
of Liberty.

         3.14 Compensation. Except as may otherwise be provided in or required
by this Agreement, the Inter-Group Agreement, the Tax Sharing Agreement, or as
has been or will be negotiated by Liberty or any member of the Liberty Media
Group, any compensation paid or to be paid by Parent, Merger Sub or any member
of the Common Stock Group to any stockholder of the Company who will be an
employee of or perform advisory services for Parent, Merger Sub or any member
of the Common Stock Group before the Merger, or for Parent or any member of the
Common Stock Group after the Merger, will be in consideration of services
actually rendered or to be rendered, will be commensurate with amounts paid to
third parties bargaining at arm's length for similar services, and has been or
will be bargained for independent of negotiations regarding the consideration
to be paid for shares of Company Stock.


                                   ARTICLE IV

                 REPRESENTATIONS AND WARRANTIES OF THE COMPANY

                  The Company hereby represents and warrants to (a) Parent
that, except as disclosed in (i) the Company Disclosure Schedule (applied in
accordance with Section 10.12 hereof) or (ii) the Company SEC Reports filed
prior to the date hereof or the Teligent SEC Reports with respect to Sections
4.5 (except for clauses (i), (iv) and (v) thereof), 4.6, 4.8, 4.10, 4.13, 4.16,
4.17 and 4.24, and (b) Liberty that, except as disclosed in (i) the Company
Disclosure Schedule (applied in accordance with Section 10.12 hereof) or (ii)
the Company SEC Reports filed prior to the date hereof or the Teligent SEC
Reports:

         4.1 Organization and Qualification. Each of the Company and each of
its Subsidiaries (i) is a corporation or partnership duly organized, validly
existing and in good standing under the laws of the jurisdiction of its
incorporation or organization, (ii) has all requisite corporate or partnership
power and authority to own, lease and operate its properties and to carry on
its business as it is now being conducted and (iii) is duly qualified or
licensed to do business and is in good standing in each jurisdiction in which
the properties owned, leased or operated by it or the nature of


                                      32
<PAGE>



its activities makes such qualification necessary, except in such jurisdictions
where the failure to be so duly qualified or licensed and in good standing has
not had and is not reasonably likely to have, individually or in the aggregate,
a Material Adverse Effect. Section 4.1 of the Company Disclosure Schedule sets
forth a complete and accurate list of each of the Company's Subsidiaries and,
as of the date hereof and to the best of the Company's knowledge, Teligent's
Subsidiaries and Portatel's Subsidiaries and reflects the percentage and nature
of the Company's ownership of each such Subsidiary and, as of the date hereof
and to the best of the Company's knowledge, the percentage and nature of
Teligent's ownership of each such Subsidiary of Teligent and Portatel's
ownership of each such Subsidiary of Portatel.

                  Each entity designated in Section 4.1 of the Company
Disclosure Schedule as an "inactive subsidiary" does not currently conduct any
business, holds no material assets and is not subject to any material
liabilities, contingent or otherwise. No Subsidiary of the Company or, as of
the date hereof and to the best of the Company's knowledge, Teligent, holds any
shares of Company Stock. Subject to clause (i) of Section 3.9, the Company,
through its direct wholly owned subsidiary MSI, owns 21,436,689 shares of
Teligent Class B Stock designated as Series 1. Neither such shares of Teligent
Class B Stock, nor the Company's direct or indirect interest in MSI or the
Special Purpose Sub, is or at the Effective Time will be subject to any Liens
or Restrictions, except as created by this Agreement that are in favor of, and
waivable by, Parent or Liberty, or as provided in the agreements or instruments
set forth on Section 4.1 of the Company Disclosure Schedule. MSI holds no
assets other than such shares of Teligent Class B Stock. Subject to clause (ii)
of Section 3.9, the Company, through its direct wholly owned subsidiary
Associated Investments, Inc., owns 19,719,274 shares of Parent Common Stock,
11,684,477 shares (without giving effect to the Liberty May Stock Split) of
Class A Liberty Group Stock and 2,651,944 shares (without giving effect to the
Liberty May Stock Split) of Class B Liberty Group Stock, and Associated
Investments, Inc. holds no assets other than such shares of Parent Common
Stock, Class A Liberty Group Stock and Class B Liberty Group Stock and the
other securities described in Section 4.17 of the Company Disclosure Schedule.
Neither such shares of Parent Common Stock, Class A Liberty Group Stock and
Class B Liberty Group Stock, nor the Company's interest in Associated
Investments, Inc., are subject to any Liens or Restrictions, except as created
by this Agreement that are in favor of, and waivable by, Parent and Liberty (in
the case of Parent Common Stock) or Liberty (in the case of Class A Liberty
Group Stock and Class B Liberty Group Stock), or as provided in the agreements
or instruments referenced in Item 2(b) of Section 4.1 of the Company Disclosure
Schedule. The foregoing representations regarding the Company's or its
Subsidiary's ownership of shares of Teligent Class B Stock, Parent Common
Stock, Class A Liberty Group Stock and Class B Liberty Group Stock are made
subject to any changes that may affect the holders of any of such securities
generally. Attached to Section 4.1 of the Company Disclosure Schedule are true,
correct and complete copies of all material agreements relating to the
Company's interest in Teligent to which the Company or any Subsidiary of the
Company is a party.

                  The Company has delivered or made available to Parent and
Liberty true and complete copies of the Company Charter and Bylaws, as amended
through and in effect on the date hereof. The Company's minute books, true and
complete copies of which have been delivered or


                                      33
<PAGE>



made available to Parent and Liberty, contain the minutes of all meetings of
directors and stockholders of the Company since December 15, 1994.

         4.2 Authorization and Validity of Agreement. The Company has all
requisite corporate power and authority to enter into this Agreement and,
subject to obtaining the approval of its stockholders specified in Section
4.15, to perform its obligations hereunder and consummate the transactions
contemplated hereby (excluding any transactions contemplated hereby to occur
after the Effective Time). The execution, delivery and performance by the
Company of this Agreement and the consummation by the Company of the Merger and
the transactions contemplated hereby (excluding any transactions contemplated
hereby to occur after the Effective Time) have been duly and validly authorized
by the Company Board and by all other necessary corporate action on the part of
the Company, subject, in the case of the consummation by it of the Merger, to
the approval of the Company's stockholders specified in the previous sentence.
This Agreement has been duly executed and delivered by the Company and is a
legal, valid and binding obligation of the Company, enforceable against the
Company in accordance with its terms (except insofar as enforceability may be
limited by applicable bankruptcy, insolvency, reorganization, moratorium or
similar laws affecting creditors' rights generally, or by principles governing
the availability of equitable remedies).

         4.3 Capitalization. The authorized capital stock of the Company
consists of one hundred million shares of Company Class A Common Stock, fifty
million shares of Company Class B Common Stock, and five million shares of
preferred stock, par value $.01 per share, (the "Company Preferred Stock"). As
of the date hereof, (i) 18,765,924 shares of Company Class A Common Stock were
issued and outstanding and no shares were issued and held by the Company in its
treasury or by Subsidiaries of the Company, (ii) 19,411,620 shares of Company
Class B Common Stock were issued and outstanding and no shares were issued and
held by the Company in its treasury or by Subsidiaries of the Company, and
(iii) no shares of Company Preferred Stock were issued and outstanding or were
issued and held by the Company in its treasury or by Subsidiaries of the
Company. All issued and outstanding shares of Company Stock have been validly
issued and are fully paid and non-assessable, and have not been issued in
violation of any preemptive rights or of any federal or state securities laws.
There are no issued or outstanding bonds, debentures, notes or other
Indebtedness of the Company or any of its Subsidiaries which have the right to
vote (or which are convertible into other securities having the right to vote)
on any matters on which stockholders may vote ("Voting Debt"). Section 4.3 of
the Company Disclosure Schedule describes all outstanding or authorized
subscriptions, options, warrants, calls, rights, commitments or any other
agreements of any character to or by which the Company or any of its
Subsidiaries is a party or is bound which, directly or indirectly, obligate the
Company or any of its Subsidiaries to issue, deliver or sell or cause to be
issued, delivered or sold any additional shares of Company Stock or any other
capital stock, equity interest or Voting Debt of the Company or any Subsidiary
of the Company, any securities convertible into, or exercisable or exchangeable
for, or evidencing the right to subscribe for any such shares, interests or
Voting Debt, or any phantom shares, phantom equity interests or stock or equity
appreciation rights, or obligating the Company or any of its Subsidiaries to
grant, extend or enter into any such subscription, option, warrant, call or
right (collectively, "Convertible



                                      34
<PAGE>





Securities"). As of the Effective Time, except for (i) Company Stock Options
with respect to which the respective holders have validly made Rollover
Elections in accordance with Section 3.7 and (ii) options to purchase common
stock of TruePosition granted pursuant to the TruePosition Stock Plan (as in
effect on the date hereof) ("TruePosition Options") described on Section 4.3 of
the Company Disclosure Schedule or granted after the date hereof in the
ordinary course of TruePosition's business (which TruePosition Options will
not, in the aggregate, exceed 15% of the number of outstanding shares of common
stock of TruePosition on a fully-diluted basis), no Convertible Securities will
be outstanding (including any Company Preferred Stock). Neither the Company nor
any Subsidiary thereof is subject to any obligation (contingent or otherwise)
to repurchase or otherwise acquire or retire any shares of its capital stock.
Immediately after the Effective Time, except for the TruePosition Options
described on Section 4.3 of the Company Disclosure Schedule or granted after
the date hereof in the ordinary course of TruePosition's business, there will
be no subscription, option, warrant, call, right, commitment or agreement to or
by which the Company or any of its Subsidiaries is a party or is bound which
will entitle (conditionally or unconditionally) any Person to purchase or
otherwise acquire, or will obligate (conditionally or unconditionally) the
Surviving Entity or any Subsidiary of the Surviving Entity to sell, issue or
deliver any shares of capital stock, any other equity interest or any Voting
Debt of the Surviving Entity or any such Subsidiary or obligating the Surviving
Entity or any such Subsidiary to grant, extend or enter into any such
subscription, warrant, call, right, commitment or agreement. Neither the
Company nor any of its Subsidiaries has adopted, authorized or assumed any
plans, arrangements or practices for the benefit of its officers, employees or
directors which require or permit the issuance, sale, purchase or grant of any
capital stock, other equity interests or Voting Debt of the Company or any
Subsidiary of the Company, any other securities convertible into, or
exercisable or exchangeable for, any such stock, interests or Voting Debt, or
any phantom shares, phantom equity interests or stock or equity appreciation
rights. All shares of capital stock of and all partnership or other equity
interests in each Subsidiary of the Company and Teligent owned directly or
indirectly by the Company are owned free and clear of any Lien or Restriction
and the shares of capital stock of each corporate Subsidiary of the Company and
the shares of capital stock of Teligent owned by the Company or any Subsidiary
of the Company are validly issued, fully paid and non-assessable. There are
not, and immediately after the Effective Time, there will not be, any
outstanding or authorized subscriptions, options, warrants, calls, rights,
commitments or other agreements of any character to or by which the Company or
any of its Subsidiaries is a party or is bound that, directly or indirectly,
(x) call for or relate to the sale, pledge, transfer or other disposition by
the Company or any Subsidiary of the Company of any shares of capital stock,
any partnership or other equity interests or any Voting Debt of any Subsidiary
of the Company or of Teligent owned directly or indirectly by the Company or
any Subsidiary of the Company, or (y) relate to the voting or control of such
capital stock, partnership or other equity interests or Voting Debt.

         4.4 Reports and Financial Statements. (a) The Company has filed all
Reports on Form 10-K, Form 10-Q and Form 8-K, registration statements and proxy
statements required to be filed with the Commission since January 1, 1997
(collectively, the "Company SEC Reports"). The Company has previously furnished
to Parent and Liberty true and complete copies of all the Company SEC Reports
filed prior to the date hereof. None of the Company SEC Reports, as of their


                                      35
<PAGE>



respective dates, contained any untrue statement of material fact or omitted to
state a material fact required to be stated therein or necessary to make the
statements therein, in light of the circumstances under which they were made,
not misleading. Each of the consolidated balance sheets (including the related
notes) included in the Company SEC Reports presents fairly, in all material
respects, the consolidated financial position of the Company and its
Subsidiaries and Teligent as of the respective dates thereof, and the other
related financial statements (including the related notes) included in the
Company SEC Reports present fairly, in all material respects, the results of
operations and the changes in financial position of the Company and its
Subsidiaries for the respective periods or as of the respective dates set forth
therein, all in conformity with GAAP consistently applied during the periods
involved, except as otherwise noted therein and subject, in the case of the
unaudited interim financial statements, to normal year-end adjustments. All of
the Company SEC Reports, as of their respective dates, complied as to form in
all material respects with the requirements of the Exchange Act, the Securities
Act and the applicable rules and regulations thereunder.

                  (b) The Company has previously furnished to Parent and
Liberty a true and complete copy of Teligent's Annual Report on Form 10-K for
Teligent's fiscal year ended December 31, 1998 (as filed by Teligent with the
Commission and disregarding any subsequent amendments thereto filed after the
date hereof, the "Teligent 10-K") and Teligent's Report on Form 10-Q for
Teligent's fiscal quarter ended March 31, 1999 (as filed by Teligent with the
Commission and disregarding any subsequent amendments thereto filed after the
date hereof and together with the Teligent 10-K, the "Teligent SEC Reports").
To the best knowledge of the Company, the Teligent SEC Reports, as of their
respective dates, did not contain any untrue statement of material fact or omit
to state a material fact required to be stated therein or necessary to make the
statements therein, in light of the circumstances under which they were made,
not misleading. To the best knowledge of the Company, each of the consolidated
balance sheets (including the related notes) included in the Teligent SEC
Reports presents fairly, in all material respects, the consolidated financial
position of Teligent and its Subsidiaries as of the respective dates thereof,
and the other related statements (including the related notes) included in the
Teligent SEC Reports present fairly, in all material respects, the results of
operations and the changes in financial position of Teligent and its
Subsidiaries for the respective periods or as of the respective dates set forth
therein, all in conformity with GAAP consistently applied during the periods
involved, except as otherwise noted therein and subject, in the case of the
unaudited interim financial statements, to normal year-end adjustments. To the
best knowledge of the Company, the Teligent SEC Reports, as of their respective
dates, complied as to form in all material respects with requirements of the
Exchange Act and the applicable rules and regulations thereunder.

                  (c) The Company and its Subsidiaries have not made any
misstatements of fact, or omitted to disclose any fact, to any Governmental
Entity, or taken or failed to take any action, which misstatements or
omissions, actions or failures to act, individually or in the aggregate,
subject or would subject any Licenses held by the Company to revocation or
failure to renew, except where such revocation or failure to renew,
individually or in the aggregate, does not and would not be reasonably likely
to have a Material Adverse Effect.


                                      36
<PAGE>



                  (d) Neither the Company nor any of its Subsidiaries has
guaranteed or otherwise agreed to become responsible for any Indebtedness of
any other Person.

                  (e) Neither the Company nor any Subsidiary of the Company has
any obligation to contribute any additional capital to, or acquire any
additional interest in, Portatel or any of its Affiliates.

         4.5 No Approvals or Notices Required; No Conflict with Instruments.
The execution and delivery by the Company of this Agreement do not, and the
performance by the Company of its obligations hereunder and the consummation by
the Company of the Merger and the transactions contemplated hereby (excluding
any transactions contemplated hereby to occur after the Effective Time, other
than the Cayman Continuation) will not:

                           (i) assuming approval of the Merger Proposal by the
Company's stockholders as contemplated by Section 4.15, conflict with or
violate the Company Charter or Bylaws or the charter or bylaws of any corporate
Subsidiary of the Company or the partnership or other governing agreement of
any other Subsidiary of the Company;

                           (ii) require any Governmental Consent or any
Governmental Filing, in each case on the part of or with respect to the Company
or any Subsidiary of the Company, except for (A) the filing of the Certificate
of Merger with the Delaware Secretary of State and appropriate documents with
the relevant authorities of other states in which the Company is qualified to
do business, (B) the Governmental Consents and Governmental Filings with
foreign, state and local governmental authorities set forth on Section 4.5(ii)
of the Company Disclosure Schedule (the "Local Approvals"), (C) such
Governmental Consents and Governmental Filings as may be required in connection
with the issuance of the Merger Consideration as contemplated hereby pursuant
to state securities and blue sky laws, (D) the Governmental Filings required to
be made pursuant to the pre-merger notification requirements of the Hart-Scott
Act, (E) the FCC Consents, (F) the filing with the Commission of (1) the
preliminary proxy statement and the definitive Proxy Statement as contemplated
by Section 3.2(a) and (2) such reports under Section 13(a), 13(d), 15(d) or
16(a) of the Exchange Act as may be required in connection with this Agreement,
the Voting Agreement or the transactions contemplated hereby or thereby, (G)
with respect to the Cayman Continuation, appropriate filings with the Delaware
Secretary of State and appropriate authorities in the Cayman Islands, and (H)
such other Governmental Consents and Government Filings the absence or omission
of which will not, either individually or in the aggregate, (I) have a Material
Adverse Effect or (II) have a Transaction Adverse Effect;

                           (iii) require any consent, approval, order or
authorization of or other action by the FCC or any analogous state or local
regulatory authority, or any registration, qualification or filing with or
notice to the FCC or any such analogous state regulatory authority, in each
case on the part of or with respect to Teligent, except for the FCC Consents
with respect to FCC Licenses held by Teligent or its Subsidiaries and the
consent or approval of such analogous state regulatory authorities with respect
to the transfer of control in connection with the transactions contemplated



                                      37
<PAGE>





hereby of any Licenses, authorization or permits issued by such state
regulatory authorities and held by Teligent or its Subsidiaries;

                           (iv) require, on the part of the Company or any
Subsidiary of the Company, any consent by or approval or authorization of (a
"Contract Consent") or notice to (a "Contract Notice") any other Person (other
than a Governmental Entity), under any License or other Contract, except for
such Contract Consents and Contract Notices the absence or omission of which
will not, either individually or in the aggregate, have a Material Adverse
Effect or a Transaction Adverse Effect;

                           (v) assuming that the Contract Consents and Contract
Notices described on Section 4.5(iv) of the Company Disclosure Schedule are
obtained and given, conflict with or result in any violation or breach of or
default (with or without notice or lapse of time, or both) under, or give rise
to a right of termination, cancellation, suspension, modification or
acceleration of any obligation or any increase in any payment required by, or
the impairment, loss or forfeiture of any material benefit, rights or
privileges under, or the creation of a Lien or other encumbrance on any assets
pursuant to (any such conflict, violation, breach, default, right of
termination, cancellation or acceleration, loss or creation, a "Violation"),
any Contract (which term shall mean and include any note, bond, indenture,
mortgage, deed of trust, lease, franchise, permit, authorization, license,
contract, instrument, employee benefit plan or practice, or other agreement,
obligation, commitment or concession of any nature to which the Company or any
Subsidiary of the Company is a party, by which the Company, any Subsidiary of
the Company or any of their respective assets or properties is bound or
affected or pursuant to which the Company or any Subsidiary of the Company is
entitled to any rights or benefits (including the Licenses)), except for such
Violations which would not, individually or in the aggregate, be reasonably
likely to have a Material Adverse Effect or a Transaction Adverse Effect; or

                           (vi) assuming that the Merger is so approved by the
Company's stockholders and assuming that the Governmental Consents and
Governmental Filings specified in clauses (ii) and (iii) of this Section 4.5
are obtained, made and given, result in a Violation of, under or pursuant to
any law, rule, regulation, order, judgment or decree applicable to the Company
or any Subsidiary of the Company or by which any of their respective properties
or assets are bound, except for such Violations which would not, individually
or in the aggregate, be reasonably likely to have a Material Adverse Effect or
a Transaction Adverse Effect. As used herein, the term "Governmental Entity"
means and includes any court, arbitrators, administrative or other governmental
department, agency, commission, authority or instrumentality, domestic or
foreign.

         4.6 Absence of Certain Changes or Events. Since December 31, 1998, (i)
there has not been any adverse change in, and no event has occurred and no
condition exists which, individually or together with all other such changes,
events and conditions, has had or, insofar as the Company can reasonably
foresee, is reasonably likely to have, a Material Adverse Effect and (ii) since
December 31, 1998 through the date hereof, other than actions that in the
ordinary course of the Company's business consistent with prior practice would
not have required, and would have been


                                      38
<PAGE>


taken without, the approval of the Company Board, no action has been taken by
the Company or any Subsidiary of the Company which, if Section 7.4 had then
been in effect, would have been prohibited by such Section without the consent
or approval of Liberty, and no agreements, understandings, obligations or
commitments, whether in writing or otherwise, to take any such action were
entered into during such period.

         4.7 Registration Statement; Proxy Statement. None of the information
supplied or to be supplied by the Company for inclusion or incorporation by
reference in, and which is included or incorporated by reference in, (i) the
Registration Statement or any amendment or supplement thereto filed or to be
filed by Parent with the Commission under the Securities Act in connection with
the issuance of the Merger Consideration, or (ii) any documents filed or to be
filed with the Commission or any other Governmental Entity in connection with
the transactions contemplated hereby, will, at the respective times such
documents are filed, and, in the case of the Registration Statement or any
amendment or supplement thereto, when the same becomes effective and at the
Effective Time, be false or misleading with respect to any material fact, or
omit to state any material fact required to be stated therein or necessary in
order to make the statements therein, in light of the circumstances under which
they were made, not misleading or necessary to correct any statement in any
earlier communication. The Proxy Statement and the furnishing thereof by the
Company will comply in all respects with the applicable requirements of the
DGCL.

         4.8 Legal Proceedings. As of the date hereof there is no, (i) suit,
action or proceeding pending of which the Company has received notice or, to
the knowledge of the Company, any investigation pending or any suit, action,
proceeding or investigation threatened, against, involving or affecting the
Company, any Subsidiary of the Company or any of its or their properties or
rights, which, if adversely determined, is, insofar as the Company can
reasonably foresee, reasonably likely to have, either individually or in the
aggregate, a Material Adverse Effect or a Teligent Interest Material Adverse
Effect; (ii) judgment, order, decree, Injunction or order of any Governmental
Entity entered against and binding on the Company or any Subsidiary of the
Company of which the Company has received notice, which, insofar as the Company
can reasonably foresee, is reasonably likely to have, either individually or in
the aggregate, a Material Adverse Effect or a Teligent Interest Material
Adverse Effect; (iii) there is no action, suit, proceeding or investigation
pending of which the Company has received notice or, to the knowledge of the
Company, threatened, against the Company which seeks to restrain, enjoin or
delay the consummation of the Merger or any of the other transactions
contemplated hereby or which seeks damages in connection therewith; and (iv)
Injunction of any type referred to in Section 8.2(d) or 8.3(d) of which the
Company has received notice which has been entered or issued and is in effect.

         4.9 Licenses; Compliance with Regulatory Requirements. The Company and
its Subsidiaries hold all licenses, franchises, ordinances, authorizations,
permits, certificates, variances, exemptions, concessions, leases, rights of
way, easements, instruments, orders and approvals, domestic or foreign required
for the ownership of the assets and operation of the businesses of the Company
or any of its Subsidiaries, except for the failure to hold any of the foregoing
as would not be reasonably likely to have, either individually or in the
aggregate, a Material Adverse Effect


                                      39
<PAGE>



(collectively, the "Licenses"). Each of the Company and its Subsidiaries is in
compliance with, and has conducted its business so as to comply with, the terms
of their respective Licenses and with all applicable laws, rules, regulations,
ordinances and codes, except where the failure so to comply has not had and,
insofar as reasonably can be foreseen by the Company, in the future is not
reasonably likely to have, either individually or in the aggregate, a Material
Adverse Effect. Without limiting the generality of the foregoing, the Company
and its Subsidiaries, (i) have all Licenses from Governmental Entities required
for the operation of the facilities being operated on the date hereof by the
Company or any of its Subsidiaries (the "Permits"), (ii) have duly and
currently filed all reports and other information required to be filed by any
other Governmental Entity in connection with such Permits and (iii) are not in
violation of any of such Permits, other than the lack of Permits, delays in
filing reports or possible violations which have not had and, insofar as can
reasonably be foreseen by the Company, in the future are not reasonably likely
to have, a Material Adverse Effect. Without limiting the generality of the
foregoing, to the knowledge of the Company, the Company and its Subsidiaries
have duly complied with, and the operation of their respective businesses,
equipment and other assets and the facilities owned or leased by them are in
compliance with the provisions of all applicable federal, state and local
environmental, health and safety laws, statutes, ordinances, rules and
regulations of any governmental or a quasi governmental authority relating to
(i) errors or omissions, (ii) discharges to surface water or ground water,
(iii) solid or liquid waste disposal, (iv) the use, storage, generation,
handling, transport, discharge, release or disposal of toxic or hazardous
substances or waste, (v) the emission of non-ionizing electromagnetic radiation
or (vi) other environmental, health or safety matters, including without
limitation, all matters set forth in the Comprehensive Environmental Response
Compensation and Liability Act of 1980 as amended by the Superfund Amendments
and Authorization Act of 1986; the Occupational Safety and Health Act; the
Resource Conservation Recovery Act of 1976; the Federal Water Pollution Control
Act of 1970; the Safe Drinking Water Act of 1974; the Toxic Substances Control
Act of 1976; the Emergency Planning Community Right to Know Act of 1986, as
amended; and the Clean Air Act, as amended (collectively "Environmental and
Health Laws"); except, with respect to any of the foregoing, where the failure
to be or have been in such compliance would not be reasonably likely to have,
either individually or in the aggregate, a Material Adverse Effect. To the
knowledge of the Company, there are no investigations, administrative
proceedings, judicial actions, orders, claims or notices that are pending or
threatened against the Company or any of its Subsidiaries relating to
violations of the Environmental and Health Laws, except for such matters as
would not be reasonably likely to have, either individually or in the
aggregate, a Material Adverse Effect.

         4.10 Brokers or Finders. No agent, broker, investment banker,
financial advisor or other Person is or will be entitled, by reason of any
agreement, act or statement by the Company or any of its Subsidiaries,
directors, officers, employees or Affiliates, to any financial advisory,
broker's, finder's or similar fee or commission, to reimbursement of expenses
or to indemnification or contribution in connection with any of the
transactions contemplated by this Agreement, except Salomon Smith Barney Inc.
whose fees and expenses will be paid by the Company at the Effective Time in
accordance with the Company's agreement with such firm (copies of which have
been delivered by the Company to Parent prior to the date of this Agreement),
and the Company agrees to indemnify and hold Parent and Merger Sub harmless
from and against any and all claims,


                                      40
<PAGE>



liabilities or obligations with respect to any other such fees, commissions,
expenses or claims for indemnification or contribution asserted by any Person
on the basis of any act or statement made or alleged to have been made by the
Company or any of its Subsidiaries, directors, officers, employees or
Affiliates.

         4.11 Tax Matters. (i) There has been duly filed by or on behalf of the
Company and each of its Subsidiaries (and each of their respective
predecessors, if any), or filing extensions from the appropriate federal,
state, foreign and local Governmental Entities have been obtained with respect
to, all material federal, state, foreign and local tax returns and reports
required to be filed on or prior to the date hereof; (ii) payment in full or
adequate provision for the payment of all material taxes required to be paid in
respect of the periods covered by such tax returns and reports has been made,
except where the failure to so pay or make such adequate provision has not had,
and would not be reasonably likely to have, a Material Adverse Effect; (iii) a
reserve which the Company reasonably believes to be adequate has been set up
for the payment of all such taxes anticipated to be payable in respect of
periods through the most recent fiscal quarter end, except where the failure to
establish adequate reserves has not had and would not be reasonably likely to
have a Material Adverse Effect; (iv) none of the income tax returns required to
be filed by or on behalf of the Company and each of its Subsidiaries
consolidated in such returns (and their respective predecessors, if any) (the
"Consolidated Returns") have been examined by or settled with the Internal
Revenue Service ("IRS") or other Governmental Entity; (v) there are no material
"deferred intercompany transactions" or "intercompany transactions," the gain
or loss in which has not yet been taken into account under the Consolidated
Returns; (vi) there are no liens for taxes on the assets of the Company and
each of its Subsidiaries, except for statutory liens for current taxes not yet
due and payable (and except for liens which do not and would not, individually
or in the aggregate, have a material adverse effect on the Company); and (vii)
there have been no material claims or assessments against the Company or any of
its Subsidiaries asserted in writing by any Governmental Entity with respect to
any alleged deficiency in any tax. For the purpose of this Agreement, the term
"tax" (including, with correlative meaning, the terms "taxes" and "taxable")
shall include all federal, state, local and (to the extent material to the
Company and its consolidated Subsidiaries, taken as a whole) foreign income,
profits, franchise, gross receipts, payroll, sales, employment, use, property,
withholding, excise and other taxes, duties or assessments of any nature
whatsoever, together with all interest, penalties and additions imposed with
respect to such amounts. The term "tax return" means a report, return or other
information required to be supplied to or filed with a Governmental Entity with
respect to any tax including an information return, claim for refund, amended
tax return or declaration of estimated tax.

         4.12     Employee Matters.

                  (a) Section 4.12(a) of the Company Disclosure Schedule
contains a true and complete list of each material bonus, deferred
compensation, incentive compensation, stock purchase, stock option, severance
or termination pay, hospitalization, medical, life or other insurance,
supplemental unemployment benefits, profit-sharing, pension or retirement plan,
program, agreement or arrangement, and each other employee benefit plan,
program, agreement or



                                      41
<PAGE>





arrangement, sponsored, maintained or contributed to or required to be
contributed to at any time since January 1, 1997 by the Company or by any trade
or business, whether or not incorporated ("ERISA Affiliate"), that together
with the Company would be deemed a "controlled group" within the meaning of
Section 4001 of the Employee Retirement Income Security Act of 1974, as amended
("ERISA"), for the benefit of any employee or former employee of the Company,
including any such type of plan established, maintained or contributed to under
the laws of any foreign country (the "Company Plans"). Section 4.12(a) of the
Company Disclosure Schedule identifies each Company Plan that is an "employee
benefit plan," as defined in Section 3(3) of ERISA. The Company has heretofore
delivered to Parent and Liberty true and complete copies of each Company Plan
and, if the Company Plan is funded through a trust or any third party funding
vehicle, a copy of the trust or other funding document, the most recent
determination letter issued by the IRS with respect to each Company Plan for
which such a letter has been obtained, annual reports on Form 5500 required to
be filed with any Governmental Entity for each Company Plan which is an
employee pension benefit plan for the three most recent plan years and all
required actuarial reports for the last two plan years of each Company Plan.

                  (b) No Company Plan is subject to Title IV of ERISA or
Section 412 of the Code and neither the Company nor any ERISA Affiliate made,
or was required to make, contributions to any employee benefit plan subject to
Title IV of ERISA during the five year period ending on the Effective Time.

                  (c) Each Company Plan that utilizes a funding vehicle
described in Section 501(c)(9) of the Code or is subject to the provisions of
Section 505 of the Code has been the subject of a notification by the IRS that
such funding vehicle qualifies for tax-exempt status under Section 501(c)(9) of
the Code and/or such Company Plan complies with Section 505 of the Code, unless
the IRS does not as a matter of policy issue such notification with respect to
that particular type of plan. To the Company's knowledge, each such Company
Plan satisfies, where appropriate, the requirements of Sections 501(c)(9) and
505 of the Code.

                  (d) There has been no event or circumstance which has
resulted in any liability being asserted by any Company Plan, the Pension
Benefit Guaranty Corporation ("PBGC") or any other person or entity under Title
IV of ERISA against the Company or any ERISA Affiliate nor, except as would not
have a Material Adverse Effect, is there or has there been any event or
circumstance which could reasonably be expected to result in such liability.

                  (e) Except as set forth in Section 4.12(e) of the Company
Disclosure Schedule, neither the Company nor any Subsidiary of the Company is a
party to or bound by the terms of any collective bargaining agreement. The
Company and each Subsidiary of the Company is in compliance in all material
respects with all applicable laws respecting the employment and employment
practices, terms and conditions of employment and wage and hours of its
employees and is not engaged in any unfair labor practice. There is no labor
strike or labor disturbance pending or, to the knowledge of the Company,
threatened against the Company or any Subsidiary of the



                                      42
<PAGE>





Company, and during the past five years neither the Company nor any Subsidiary
of the Company has experienced a work stoppage.

                  (f) Each Company Plan has been operated and administered in
all material respects in accordance with its terms and applicable law,
including, but not limited to, Section 406 of ERISA and Section 4975 of the
Code.

                  (g) To the Company's knowledge, each Company Plan which is
intended to be "qualified" within the meaning of Section 401(a) of the Code is
so qualified and the trusts maintained thereunder are exempt from taxation
under Section 501(a) of the Code.

                  (h) Except as set forth in Section 4.12(h) of the Company
Disclosure Schedule, no Company Plan provides welfare benefits, including
without limitation death or medical benefits, with respect to current or former
employees or consultants of the Company or any Subsidiary of the Company beyond
their retirement or other termination of service (other than coverage mandated
by applicable law).

                  (i) Except as set forth in Section 4.12(i) of the Company
Disclosure Schedule, there are no material pending, threatened or anticipated
claims by or on behalf of any Company Plan, by any employee or beneficiary
covered under any such Company Plan with respect to such Company Plan, or
otherwise involving any such Company Plan (other than routine claims for
benefits).

                  (j) Section 4.12(j) of the Company Disclosure Schedule sets
forth a true and complete list as of the date hereof of each of the following
agreements, arrangements and commitments to which the Company or any of its
Subsidiaries is a party or by which any of them may be bound (true and complete
copies of which have been made available to Parent): (i) each employment,
consulting, agency or commission agreement (A) not terminable without liability
to the Company or any of its Subsidiaries upon 60 days' or less prior notice to
the employee, consultant or agent and involving compensation or remuneration of
more than $100,000 per annum or (B) entered into by the Company; (ii) each
labor union or collective bargaining agreement; (iii) each agreement with any
executive officer or other key employee of the Company or any Subsidiary of the
Company the benefits of which are contingent, or the terms of which are
materially altered, upon the consummation of the transactions contemplated by
this Agreement; (iv) each agreement with respect to any officer or other key
employee of the Company or any Subsidiary of the Company providing any term of
employment or compensation guarantee extending for a period longer than one
year; and (v) each other material agreement or Company Plan any of the benefits
of which will be increased, or the vesting of the benefits of which will be
accelerated, by the occurrence of any of the transactions contemplated by this
Agreement or the value of any of the benefits of which will be calculated on
the basis of any of the transactions contemplated by this Agreement. Except as
set forth in Section 4.12(j) of the Company Disclosure Schedule, neither the
Company nor any of its Subsidiaries is a party to any agreement, arrangement,
commitment or understanding that has resulted or would result, upon the
consummation of the transactions contemplated under this



                                      43
<PAGE>





Agreement or otherwise, separately or in the aggregate, in the payment of any
"excess parachute payment" within the meaning of Section 280G of the Code.

         4.13 Fairness Opinion. The Company Board has received the oral opinion
of Salomon Smith Barney Inc. to the effect that, as of the date hereof, the
Exchange Ratios, taken together, are fair, from a financial point of view, to
the holders of the Company Stock (the "Fairness Opinion"). The Company has
provided, or prior to the mailing of the Proxy Statement to the Company's
Stockholders will provide, Parent with a true and complete copy of the executed
Fairness Opinion. In addition, the Company will include an executed copy of the
Fairness Opinion in or as an annex to the Proxy Statement.

         4.14 Recommendation of the Company Board. The Company Board, by vote
at a meeting duly called and held, has approved this Agreement, determined that
the Merger is fair to and in the best interests of the Company's stockholders
and has adopted resolutions recommending approval and adoption of this
Agreement and the Merger by the stockholders of the Company.

         4.15 Vote Required. The only vote of stockholders of the Company
required under the DGCL, NASDAQ Stock Market requirements and the Company
Charter and Bylaws in order to approve and adopt the Merger Proposal is the
affirmative vote of a majority of the total number of votes entitled to be cast
by the holders of the issued and outstanding shares of Company Stock voting as
a single class, and no other vote or approval of or other action by the holders
of any capital stock of the Company is required for such approval and adoption.

         4.16 Intangible Property; Copyrights. The Company and its Subsidiaries
own or have adequate rights to use all patents, trademarks, trade names,
service marks, brands, logos, copyrights, trade secrets, customer lists and
other proprietary intellectual property rights required for, used in or
incident to the businesses of the Company and its Subsidiaries as now
conducted, except where the failure to so own or have such rights to use,
individually or in the aggregate, would not be reasonably likely to have a
Material Adverse Effect. The Company does not have knowledge, and the Company
has not received any notice alleging, that it or any of its Subsidiaries is
infringing upon or otherwise violating, or has in the past infringed upon or
otherwise violated, the rights of any third party with respect to any patent,
trademark, trade name, service mark or copyright.

         4.17 Investment Securities. Subject to paragraph 3 of Exhibit 7.15,
Section 4.17 of the Company Disclosure Schedule sets forth a complete and
accurate list of each capital, participating, equity or other interest owned of
record or beneficially by the Company (each, an "Investment Security" and
collectively, the "Investment Securities") in any corporation, partnership,
joint venture, or other Person (other than Teligent and its Subsidiaries,
Portatel and its Subsidiaries and the Subsidiaries of the Company, all of which
are listed on Section 4.1 of the Company Disclosure Schedule). Subject to
paragraph 3 of Exhibit 7.15, Section 4.17 of the Company Disclosure Schedule
includes, with respect to each Investment Security, the name of the
corporation, partnership, joint venture or other Person in respect of which
such Investment Security relates, the amount and nature of such interest, and a
description of the material terms of any Liens and



                                      44
<PAGE>





Restrictions with respect to such Investment Securities. The Company's
representations in this Section 4.17 with respect to any such Investment
Securities are made subject to any events that affect the holders of the
applicable class(es) or series of such Investment Securities generally.

         4.18 Transactions with Affiliates and Certain Agreements. Section 4.18
of the Company Disclosure Schedule sets forth an accurate and complete listing
(a) of all contracts, leases, agreements and understandings, whether written or
oral, to which the Company or any of its Subsidiaries is a party, or by which
the Company, any of its Subsidiaries or any of their respective assets is
bound, which contain any material restrictions or limitation on the ability of
the Company or any of its Subsidiaries or Affiliates to engage in any business
anywhere in the world and (b) of all contracts, leases, agreements and
understandings, whether written or oral, giving any person the right to require
the Company to register under the Securities Act any securities of the Company
or to participate in any registration of such securities. The Company has
previously provided or made available to Parent and Liberty true and complete
copies of each of the foregoing agreements. Except as disclosed in the
Company's filings with the Commission, there are no relationships or
transactions involving the Company or any Subsidiary or Affiliate of the
Company of a type required to be disclosed in the Company's filings with the
Commission pursuant to Item 404 of Regulation S-K promulgated under the
Securities Act.

         4.19 No Investment Company. The Company is not an "investment company"
subject to the registration requirements of, or regulation as an investment
company under, the Investment Company Act of 1940, as amended.

         4.20 DGCL Section 203. Assuming the material accuracy of Parent's
representations and warranties contained in Section 5.5 (without giving effect
to the knowledge qualification thereof or the proviso at the end of such
Section) and Liberty's representations and warranties contained in Section 6.3
(without giving effect to the knowledge qualification thereof or the proviso at
the end of such Section), prior to the date hereof the Company Board has
approved the transaction which resulted in Parent, Liberty or Merger Sub
becoming an "interested stockholder" of the Company within the meaning of
paragraph (a)(1) of Section 203 of the DGCL.

         4.21 Rights Agreement. The Company and the Rights Agent have amended
the Rights Agreement to the extent necessary so that the execution and delivery
of this Agreement and the Voting Agreement and the consummation of the Merger
will not result (solely by virtue of such execution, delivery or consummation)
in a "Distribution Date," a "Section 13 Event," a "Section 11(a)(ii) Event,"
any Person becoming an "Acquiring Person" or a "Triggering Event," as such
terms are defined in the Rights Agreement, or any other event adverse to Parent
or Liberty under the Rights Agreement.

         4.22 British Telecommunications. As of the date hereof, the Company
and its Subsidiaries do not, directly or indirectly, beneficially own (within
the meaning of Rule 13d-3 promulgated under the Exchange Act) any shares of any
class of capital stock of British Telecommunications plc, a company organized
under the laws of England and Wales ("BT"), or any



                                      45
<PAGE>





of its Subsidiaries, or any direct or indirect rights or options to acquire
(through purchase, exchange, conversion or otherwise) any shares of any class
of capital stock of BT or any of its Subsidiaries. Between the date of this
Agreement and the Effective Time, neither the Company nor its Subsidiaries will
voluntarily acquire or agree to acquire (through purchase, exchange, conversion
or otherwise) beneficial ownership of any shares of any class of capital stock
of BT or its Subsidiaries or any direct or indirect rights or options to so
acquire any shares of any class of capital stock of BT or any of its
Subsidiaries.

         4.23 No Appraisal Rights. Assuming the shares of Parent Common Stock
and Class A Liberty Group Stock issued in the Merger meet at least one of the
criteria set forth in subparagraph b. of Section 262(b)(2) of the DGCL, no
holder of shares of Company Stock will have statutory appraisal rights pursuant
to Section 262 of the DGCL with respect to such shares of Company Stock as a
result of the execution and delivery of this Agreement or the consummation of
the Merger.

         4.24 No Excise Tax Obligations. The Company does not have, and
following the consummation of the Merger the Surviving Entity will not have,
any obligation to make payments to any past or present employees of the Company
or its Subsidiaries or Affiliates as a result of the imposition of any excise
taxes pursuant to Section 4999 of the Code or the imposition of any excise or
similar taxes pursuant to any similar provision of state or local law.


                                   ARTICLE V

                    REPRESENTATIONS AND WARRANTIES OF PARENT

         Parent hereby represents and warrants to the Company and, solely with
respect to Sections 5.1 and 5.2, to Liberty as follows:

         5.1 Organization and Qualification. Each of Parent and Merger Sub (i)
is a corporation duly incorporated, validly existing and in good standing under
the laws of the jurisdiction of its incorporation, (ii) has all requisite
corporate power and authority to own, lease and operate its properties and to
carry on its business as now being conducted and (iii) is duly qualified or
licensed and is in good standing to do business in each jurisdiction in which
the properties owned, leased or operated by it or the nature of its activities
makes such qualification necessary, except in such jurisdictions where the
failure to be so duly qualified or licensed and in good standing has not had
and is not reasonably likely to have, individually or in the aggregate, a
Parent Adverse Effect.

         5.2 Authorization and Validity of Agreement. This Agreement has been
duly executed and delivered by Parent and Merger Sub. Each of Parent and Merger
Sub has all requisite power and authority to enter into this Agreement and each
of Parent and Merger Sub has all requisite power and authority to perform its
obligations hereunder and to consummate the transactions contemplated hereby.
The execution, delivery and performance by Parent and Merger Sub of this
Agreement and the consummation by each of Parent and Merger Sub of the
transactions contemplated hereby have


                                      46
<PAGE>



been duly and validly authorized by all necessary action on the part of Parent
and Merger Sub (including in the case of Merger Sub, approval and adoption of
this Agreement and the Merger by Parent, as the sole stockholder of Merger
Sub). This Agreement is a legal, valid and binding obligation of Parent and
Merger Sub, enforceable in accordance with its terms (except insofar as
enforceability may be limited by applicable bankruptcy, insolvency,
reorganization, moratorium or similar laws affecting creditors' rights
generally, or by principles governing the availability of equitable remedies).
The shares of Parent Common Stock and Class A Liberty Group Stock to be issued
and delivered by Parent pursuant to Sections 2.3 and 2.4 will be, when the
Merger has become effective and such shares are issued and delivered as
provided in Sections 2.3 and 2.4 duly authorized, validly issued, fully paid
and non-assessable and no stockholder of Parent will have any preemptive right
of subscription or purchase in respect thereof. Notwithstanding the foregoing,
Parent makes no representations or warranties in this Section 5.2 with respect
to, or to the extent related to, the Pre-Merger Restructuring Transactions or
the Post-Merger Restructuring Transactions.

         5.3 Capitalization of Parent. As of the date hereof, Parent's
authorized capital stock consists of 8,850,000,000 shares, consisting of (a)
100,000,000 preferred shares, par value $1.00 per share ("Parent Preferred
Stock"), and (b) 8,750,000,000 common shares, par value $1.00 per share, of
which (i) 6,000,000,000 shares are Parent Common Stock, (ii) 2,500,000,000
shares are Class A Liberty Group Stock and (iii) 250,000,000 shares are Class B
Liberty Group Stock. As of May 19, 1999, (a) no shares of Parent Preferred
Stock, (b) 3,482,035,707 shares of Parent Common Stock, (c) 577,496,407 shares
of Class A Liberty Group Stock and (d) 55,072,748 shares of Class B Liberty
Group Stock were issued and outstanding.

         5.4 Ownership of Merger Sub; No Prior Activities; Assets of Merger
Sub.

                  (a) Merger Sub was formed by Parent solely for the purpose of
engaging in the transactions contemplated hereby.

                  (b) As of the date hereof and the Effective Time, the capital
stock of Merger Sub is and will be owned 100% by Parent directly. Further,
except as contemplated by this Agreement, the Post Merger Restructuring
Transactions and the Inter-Group Agreement, there are not as of the date
hereof, and there will not be at the Effective Time, any outstanding or
authorized options, warrants, calls, rights, commitments or any other
agreements of any character to or by which Merger Sub is a party or may be
bound requiring it to issue, transfer, sell, purchase, redeem or acquire any
shares of capital stock or any securities or rights convertible into,
exchangeable for, or evidencing the right to subscribe for or acquire, any
shares of capital stock of Merger Sub.

                  (c) As of the date hereof and immediately prior to the
Effective Time, except for agreements, obligations or liabilities entered into
or incurred in connection with its incorporation or organization and the
transactions contemplated hereby and by the Voting Agreement, the Inter-Group
Agreement and the Tax Sharing Agreement or any other documents referred to
herein or executed in connection herewith to which any of the Company or its
Subsidiaries or Affiliates is a party, Merger Sub has not and will not have
incurred, any obligations or liabilities or engaged in any



                                      47
<PAGE>





business or activities of any type or kind whatsoever or entered into any
agreements or arrangements with any Person.

                  (d) Parent will take all commercially reasonable actions
necessary to ensure that Merger Sub at no time prior to the Effective Time owns
any material assets other than an amount of cash necessary to incorporate
Merger Sub and to pay the expenses of the Merger attributable to Merger Sub if
the Merger is consummated. If, notwithstanding the foregoing sentence, any
assets are contributed to Merger Sub, Parent will take all commercially
reasonable actions necessary to ensure that no assets will be withdrawn from
Merger Sub at any time prior to the Effective Time.

         5.5 Ownership of Company Stock. Except for an aggregate of 45,000
shares of Company Class A Common Stock and 45,000 shares of Company Class B
Common Stock held by Liberty Ventures Group LLC as of the date hereof neither
Parent nor any Subsidiary or Affiliate of Parent "owns", and has not within the
past three years "owned" (as such terms are defined in Section 203 of the
DGCL), and does not "beneficially own" (as such term is defined in the Rights
Agreement), any shares of Company Stock; provided that the foregoing
representation is to the best knowledge of Parent with respect to shares of
Company Stock so "owned" or "beneficially owned" by Parent by virtue of the
ownership of shares of Company Stock by Parent's "affiliates" or "associates"
(as such terms are defined in the DGCL) or "Affiliates" or "Associates" (as
such terms are defined in the Rights Agreement). Between the date of this
Agreement and the Effective Time, neither Parent nor any Subsidiary or
Affiliate of Parent will acquire any additional shares of Company Stock;
provided that, subject to Section 3.12(c), Parent and its Subsidiaries and
Affiliates may acquire indirect ownership of shares of Company Stock in
connection with any Parent Transaction if, in the Parent Transaction in which
such shares of Company Stock are acquired, shares of Company Stock do not
constitute a substantial portion of the assets or business so acquired.
Notwithstanding the proviso in the foregoing sentence, subject to Section
3.12(c), Parent and its Subsidiaries and Affiliates will not at any time "own"
(as such term is defined in Section 203 of the DGCL) or "beneficially own" (as
such term is defined in the Rights Agreement) more than 10% of the total
outstanding number of shares of Company Stock, in the aggregate.

         5.6 Registration Statement; Proxy Statement. None of the information
concerning Parent or any of its Subsidiaries supplied or to be supplied by
Parent or Merger Sub for inclusion or incorporation by reference in, and which
is included or incorporated by reference in, (i) the Registration Statement or
any amendment or supplement thereto filed or to be filed by Parent with the
Commission under the Securities Act in connection with the issuance of the
Merger Consideration, or (ii) any documents filed or to be filed with the
Commission or any other Governmental Entity in connection with the transactions
contemplated hereby, will, at the respective times such documents are filed,
and, in the case of the Registration Statement or any amendment or supplement
thereto, when the same becomes effective and at the Effective Time, be false or
misleading with respect to any material fact, or omit to state any material
fact required to be stated therein or necessary in order to make the statements
therein, in light of the circumstances under which they were made, not
misleading or necessary to correct any statement in any earlier



                                      48
<PAGE>





communication. The Registration Statement, including any amendments or
supplements thereto, will comply as to form in all material respects with the
provisions of the Securities Act.


                                   ARTICLE VI

                   REPRESENTATIONS AND WARRANTIES OF LIBERTY

         Liberty hereby represents and warrants to Parent and the Company as
follows:

         6.1 Organization and Qualification. Liberty (i) is a corporation duly
organized, validly existing and in good standing under the laws of the
jurisdiction of its incorporation, (ii) has all requisite corporate power and
authority to own, lease and operate its properties and to carry on its business
as now being conducted and (iii) is duly qualified or licensed and in good
standing to do business in each jurisdiction in which the properties owned,
leased or operated by it or the nature of its activities makes such
qualification necessary, except in such jurisdictions where the failure to be
so duly qualified or licensed and in good standing has not had and is not
reasonably likely to have, individually or in the aggregate, a material adverse
effect on the business, assets, results of operations or financial condition of
Liberty and its Subsidiaries taken as a whole.

         6.2 Authorization and Validity of Agreement. This Agreement has been
duly executed and delivered by Liberty. Liberty has all requisite corporate
power and authority to enter into this Agreement and Liberty has all requisite
corporate power and authority to perform its obligations hereunder and to
consummate the transactions contemplated hereby. The execution, delivery and
performance by Liberty of this Agreement and the consummation by Liberty of the
transactions contemplated hereby have been duly and validly authorized by all
necessary corporate action on its part. This Agreement is a legal, valid and
binding obligation of Liberty, enforceable in accordance with its terms (except
insofar as enforceability may be limited by applicable bankruptcy, insolvency,
reorganization, moratorium or similar laws affecting creditors' rights
generally, or by principles governing the availability of equitable remedies).

         6.3 Ownership of Company Stock. Except for an aggregate of 45,000
shares of Company Class A Common Stock and 45,000 shares of Company Class B
Common Stock held by Liberty Ventures Group LLC which (including the shares of
Associated Communications Corporation in respect of which such shares of
Company Stock were received as a dividend) have been held by Liberty Ventures
Group LLC or its predecessors for more than ten years, as of the date hereof
neither Liberty nor any Subsidiary or Affiliate of Liberty "owns", and has not
since such date "owned" (as such terms are defined in Section 203 of the DGCL)
and does not "beneficially own" (as such term is defined in the Rights
Agreement), any shares of Company Stock; provided that the foregoing
representation is to the best knowledge of Liberty with respect to shares of
Company Stock so "owned" or "beneficially owned" by Liberty by virtue of the
ownership of shares of Company Stock by Liberty's "affiliates" or "associates"
(as such terms are defined in the DGCL) or "Affiliates" or "Associates" (as
such terms are defined in the Rights Agreement). Between the date



                                      49
<PAGE>





of this Agreement and the Effective Time, neither Liberty nor any Subsidiary or
Affiliate of Liberty will acquire any additional shares of Company Stock,
except in accordance with Section 3.12(d).

         6.4 Registration Statement; Proxy Statement. None of the information
supplied or to be supplied by Liberty relating to Liberty or any of its
Subsidiaries for inclusion or incorporation by reference in, and which is
included or incorporated by reference in, (i) the Registration Statement, or
any amendment or supplement thereto, filed or to be filed by Parent with the
Commission under the Securities Act in connection with the issuance of the
Merger Consideration (ii) any documents filed or to be filed with the
Commission or any other Governmental Entity in connection with the transactions
contemplated hereby, will, at the respective times such documents are filed,
and, in the case of the Registration Statement or any amendment or supplement
thereto, when the same becomes effective and at the Effective Time, be false or
misleading with respect to any material fact, or omit to state any material
fact required to be stated therein or necessary in order to make the statements
therein, in light of the circumstances under which they were made, not
misleading or necessary to correct any statement in any earlier communication.
The Registration Statement, including any amendments or supplements thereto,
will comply as to form in all material respects with the provisions of the
Securities Act.

         6.5 Liberty Group Information. The narrative information contained in
the proxy statement of Tele-Communications, Inc., dated January 8, 1999, with
respect to the Liberty Group (referred to in such proxy statement as the "New
Liberty Media Group"), giving effect to the transactions described in such
proxy statement, did not as of such date contain any untrue statement of a
material fact, or omit to state a material fact required to be stated therein
or necessary in order to make the statements therein, in light of the
circumstances under which they were made, not misleading. The items of selected
pro forma financial information with respect to such "New Liberty Media Group"
in such proxy statement, giving effect to the transactions described in such
proxy statement and on the basis described therein, were accurate in all
material respects as of the dates and for the periods for which such
information is presented. The narrative information contained in the Annual
Report on Form 10-K for the fiscal year ended December 31, 1998 with respect to
the Liberty Group (referred to therein as the "Liberty/Ventures Group"), giving
effect to the acquisition of Tele-Communications, Inc. by Parent described
therein, the combination of the Ventures Group referred to therein with the
predecessor of the Liberty Group, and the related transfers of assets by the
Ventures Group in exchange for approximately $5.5 billion in cash, did not as
of the date such report was filed with the Commission contain an untrue
statement of a material fact, or omit to state a material fact required to be
stated therein or necessary in order to make the statements therein, in light
of the circumstances under which they were made, not misleading.

         6.6 Absence of Certain Changes or Events. Except as disclosed in the
Liberty Group Information, since December 31, 1998 there has not been any
adverse change in, and no event has occurred and no condition exists which,
individually or together with all such changes, events and conditions has had
or, insofar as Liberty can reasonably foresee, is reasonably likely to have a
Liberty Material Adverse Effect.



                                      50
<PAGE>



                                  ARTICLE VII

                      ADDITIONAL COVENANTS AND AGREEMENTS

         7.1 Access to Information Concerning Properties and Records. Subject
to any confidentiality obligations of the Company or its Subsidiaries in effect
on the date hereof and previously disclosed by the Company to Parent and
Liberty, upon reasonable notice, the Company shall (and shall cause each of its
Subsidiaries to) afford to the officers, employees, counsel, accountants and
other authorized representatives of Parent and Liberty reasonable access during
normal business hours to all its properties, personnel, books and records and
furnish promptly to such Persons such financial and operating data and other
information concerning its business, properties, personnel and affairs as such
Persons shall from time to time reasonably request and instruct the officers,
directors, employees, counsel and financial advisors of the Company to discuss
the business operations, affairs and assets of the Company and otherwise fully
cooperate with the other party in its investigation of the business of the
Company. Parent and Liberty agree that they will not, and will cause their
respective officers, employees, counsel, accountants and other authorized
representatives not to, use any information obtained pursuant to this Section
7.1 for any purpose unrelated to the transactions contemplated by this
Agreement. No investigation pursuant to this Section 7.1 will affect any
representation or warranty given by the Company to Parent or Liberty hereunder.

         7.2 Confidentiality. Unless otherwise agreed to in writing by the
party disclosing (or whose Representatives disclosed) the same (a "disclosing
party"), each party (a "receiving party") shall, and shall cause its
Affiliates, directors, officers, employees, agents and controlling Persons
(such affiliates and other Persons with respect to any party being collectively
referred to as such party's "Representatives") to, (i) keep all Confidential
Information of the disclosing party confidential and not disclose or reveal any
such Confidential Information to any Person other than those Representatives of
the receiving party who are participating in effecting the transactions
contemplated hereby or who otherwise need to know such Confidential
Information, (ii) use such Confidential Information only in connection with
consummating the transactions contemplated hereby and enforcing the receiving
party's rights hereunder, and (iii) not use Confidential Information in any
manner detrimental to the disclosing party. In the event that a receiving party
is requested pursuant to, or required by, applicable law or regulation or by
legal process to disclose any Confidential Information of the disclosing party,
the receiving party shall provide the disclosing party with prompt notice of
such request(s) to enable the disclosing party to seek an appropriate
protective order. A party's obligations hereunder with respect to Confidential
Information that (i) is disclosed to a third party with the disclosing party's
written approval, (ii) is required to be produced under order of a court of
competent jurisdiction or other similar requirements of a governmental agency,
or (iii) is required to be disclosed by applicable law or regulation, will,
subject in the case of clauses (ii) and (iii) above to the receiving party's
compliance with the preceding sentence, cease to the extent of the disclosure
so consented to or required, except to the extent otherwise provided by the
terms of such consent or covered by a protective order. If a receiving party
uses a degree of care to prevent disclosure of the Confidential Information
that is at least as great as the care it


                                      51
<PAGE>



normally takes to preserve its own information of a similar nature, it shall
not be liable for any disclosure that occurs despite the exercise of that
degree of care, and in no event shall a receiving party be liable for any
indirect, punitive, special or consequential damages unless such disclosure
resulted from its willful misconduct or gross negligence in which event it
shall be liable in damages for the disclosing party's lost profits resulting
directly and solely from such disclosure provided, however, that
notwithstanding the foregoing, Parent will not be liable under any
circumstances for damages other than direct damages (and not lost profits or
indirect, special, punitive or consequential damages) resulting directly and
solely from such disclosure. In the event this Agreement is terminated, each
party shall, if so requested by any other party, promptly return or destroy all
of the Confidential Information of such other party, including all copies,
reproductions, summaries, analyses or extracts thereof or based thereon in the
possession of the receiving party or its Representatives; provided, however,
that the receiving party shall not be required to return or cause to be
returned summaries, analyses or extracts prepared by it or its Representatives,
but shall destroy (or cause to be destroyed) the same upon request of the
disclosing party.

                  For purposes of this Section 7.2, "Confidential Information"
of a party means all confidential or proprietary information about such party
that is furnished by it or its Representatives to the other party or the other
party's Representatives, regardless of the manner in which it is furnished.
"Confidential Information" does not include, however, information which (a) has
been or in the future is published or is now or in the future is otherwise in
the public domain through no fault of the receiving party or its
Representatives, (b) was available to the receiving party or its
Representatives on a non-confidential basis prior to its disclosure by the
disclosing party, (c) becomes available to the receiving party or its
Representatives on a non-confidential basis from a Person other than the
disclosing party or its Representatives who is not otherwise bound by a
confidentiality agreement with the disclosing party or its Representatives, or
is not otherwise prohibited from transmitting the information to the receiving
party or its Representatives, or (d) is independently developed by the
receiving party or its Representatives through Persons who have not had, either
directly or indirectly, access to or knowledge of such information.

         7.3 Public Announcements. The Company, Liberty and Parent shall use
commercially reasonable efforts to develop a joint communications plan and each
party hereto shall use reasonable efforts to ensure that all press releases and
other public statements with respect to the transactions contemplated hereby
shall be consistent with such joint communications plan. Unless otherwise
required by applicable law or by obligations pursuant to any listing agreement
with or rules of any securities exchange, the National Association of
Securities Dealers, Inc. or the NASDAQ Stock Market, each party shall use
commercially reasonable efforts to consult with, and use commercially
reasonable efforts to accommodate the comments of the other parties before
issuing any press release or otherwise making any public statement with respect
to this Agreement or the transactions contemplated hereby.

         7.4 Conduct of the Company's Business Pending the Effective Time. The
Company shall, and shall cause each of its Subsidiaries to, except as
permitted, required or specifically contemplated by this Agreement, including
without limitation Sections 3.4(b), 3.4(e) and 7.5 hereof,


                                      52
<PAGE>


or consented to or approved in writing by Liberty alone (and, with respect to
the actions set forth in paragraphs (c)(i), (h)(i), (h)(ii), (h)(iii) and (i)
of this Section 7.4, by Parent also) during the period commencing on the date
hereof and ending at the Effective Time:

                  (a) conduct its business only in, and not take any action
except in, the ordinary and usual course of its business and consistent with
past practices;

                  (b) use reasonable efforts, in the ordinary and usual course
of business and consistent with past practices, to preserve intact its business
organization, to preserve its Licenses in full force and effect, to keep
available the services of its present officers and key employees, and to
preserve the good will of those having business relationships with it;

                  (c) not (i) make any change or amendments in its Charter,
Bylaws or partnership agreement (as the case may be); (ii) issue, grant, sell
or deliver any shares of its capital stock or any of its other equity interests
or securities (other than Company Options granted to directors of the Company
who are not employees of the Company in accordance with the Company Stock Plan,
shares of Company Class B Common Stock issued upon the exercise of any Company
Stock Options or securities issuable upon exercise of Rights), or any
Convertible Securities (other than TruePosition Options issued in the ordinary
course of TruePosition's business or securities issuable upon exercise of
Rights) or any phantom shares, phantom equity interests or stock or equity
appreciation rights; (iii) split, combine or reclassify the outstanding shares
of its capital stock or any of its other outstanding equity interests or
securities or issue any capital stock or other equity interests or securities
in exchange for any such shares or interests (except for any conversions of
shares of Company Class B Common Stock into an equal number of shares of
Company Class A Common Stock); (iv) redeem, purchase or otherwise acquire,
directly or indirectly, any shares of capital stock or any other securities of
the Company or any Subsidiary of the Company; (v) amend or modify any
outstanding options, warrants, or rights to acquire, or securities convertible
into shares of its capital stock or other equity interests or securities, or
any phantom shares, phantom equity interests or stock or equity appreciation
rights, or adopt or authorize any other stock or equity appreciation rights,
restricted stock or equity, stock or equity purchase, stock or equity bonus or
similar plan, arrangement or agreement; (vi) make any changes in its equity
capital structure; (vii) declare, set aside, pay or make any dividend or other
distribution or payment (whether in cash, property or securities) with respect
to its capital stock or other securities, except for dividends by a Subsidiary
of the Company paid ratably to its stockholders or the partners thereof, as the
case may be (provided in the case of any non-wholly owned Subsidiary of the
Company that the other stockholders of or partners in such Subsidiary are not
officers, directors, employees or affiliates of the Company or any of its
Subsidiaries); (viii) sell, transfer or otherwise dispose of, or pledge any
stock, equity or partnership interest owned by it in any Subsidiary of the
Company, except for dispositions permitted by Section 7.4(f) hereof; (ix) sell,
transfer or otherwise dispose of any interest in any Investment Securities or
the Company's interest in Teligent or create or permit to exist any Lien or
Restriction thereon not listed on Section 4.1 of the Company Disclosure
Schedule (other than any sale, Lien or Restriction arising from any change or
transaction affecting the holders of such



                                      53
<PAGE>





Investment Securities generally); or (x) enter into or assume any contract,
agreement, obligation, commitment or arrangement with respect to any of the
foregoing;

                  (d) not (i) modify or change in any material respect any
material License or other material Contract, other than in the ordinary course
of business; (ii) enter into any new employment, consulting, agency or
commission agreement, make any amendment or modification to any existing such
agreement or grant any increases in compensation, (A) in each case other than
in the ordinary course of business and consistent with past practice and with
or granted to persons who are not officers or directors of the Company or any
Subsidiary of the Company and which do not, in the aggregate, materially
increase the compensation or benefit expense of the Company or any Subsidiary
of the Company, and (B) other than the regular annual salary increase granted
in the ordinary course of business and consistent with past practice to
employees of the Company or its Subsidiaries who are not directors or executive
officers of the Company and; (iii) establish, amend or modify any employee
benefit plan of any kind referred to in Section 4.12(a), except to the extent
required by any applicable law, or increase the number of TruePosition Options
which may be granted under the TruePosition Stock Plan (except to the extent
permitted by Section 4.3), or as described in Section 7.4(d)(iii) of the
Company Disclosure Schedule; (iv) secure any of its outstanding unsecured
Indebtedness, provide additional security for any of its outstanding secured
Indebtedness or grant, create or suffer to exist any Lien on or with respect to
any property, assets or rights of the Company or any Subsidiary of the Company,
except in any such case for Permitted Encumbrances; (v) pay, discharge or
satisfy claims, liabilities or obligations (absolute, accrued, contingent or
otherwise), other than the payment, discharge or satisfaction in the ordinary
course of business consistent with past practice; (vi) cancel any Indebtedness
or waive any claims or rights, except in the ordinary course of business and
consistent with past practice or as described in Section 7.4(d)(vi) of the
Company Disclosure Schedule; (vii) except as described in Section 7.4(d)(vii)
of the Company Disclosure Schedule, make any material capital expenditures
(other than capital expenditures required in connection with the business of
TruePosition); (viii) accelerate the payment of, or otherwise prepay, any
existing outstanding Indebtedness (other than Indebtedness referred to in
clause (e) of the definition of Permitted Encumbrances) except in the ordinary
course of business consistent with past practice; (ix) other than as
contemplated or otherwise permitted by this Agreement and other than the normal
cash management practices of the Company and its Subsidiaries conducted in the
ordinary and usual course of their business and consistent with past practice,
make any advance or loan to or engage in any material transaction with any
director, officer, partner or Affiliate not required by the terms of an
existing Contract described in Section 4.18 of the Company Disclosure Schedule;
(x) guarantee or otherwise become responsible for any Indebtedness of any other
Person; (xi) except as described in Section 7.4(d)(xi) of the Company
Disclosure Schedule, contribute any additional capital to, or acquire any
additional interest in, Portatel or any of its Affiliates; or (xii) enter into
or assume any contract, agreement, obligation, commitment or arrangement with
respect to any of the foregoing;

                  (e) not acquire or agree to acquire by merging or
consolidating with, or by purchasing a substantial equity interest in or a
substantial portion of the assets of, or by any other manner, any business or
any corporation, partnership, association or other business organization or


                                      54
<PAGE>



division thereof or otherwise acquire or agree to otherwise acquire any assets
which are material, individually or in the aggregate, to the Company and its
Subsidiaries, taken as a whole;

                  (f) except as described on Section 7.4(f) of the Company
Disclosure Schedule and other than dispositions in the ordinary course of
business consistent with prior practice, not sell, lease or encumber or
otherwise voluntarily dispose of, or agree to sell, lease, encumber or
otherwise dispose of, any of its assets which are material, individually or in
the aggregate, to the Company and its Subsidiaries, taken as a whole;

                  (g) except as described in Section 7.4(g) of the Company
Disclosure Schedule, not incur any Indebtedness other than amounts required to
fund capital expenditures and operating losses of TruePosition and additional
amounts not to exceed $2 million per month (calculated on a cumulative basis)
and as may be required to pay expenses in connection with the transactions
contemplated hereby;

                  (h) not (i) sell, transfer or otherwise dispose of any shares
of Parent Common Stock (or any property, other than regular quarterly cash
dividends, received after the date hereof in respect of a distribution on or
otherwise in respect of any Parent Common Stock); (ii) authorize, sell or issue
any securities that are or may become convertible into or exchangeable for
(including upon consummation of the Merger) Parent Common Stock; (iii) enter
into any agreement that would (after the Effective Time) purport to bind Parent
or any of its Subsidiaries (other than the Company or any of its Subsidiaries);
or (iv) engage in any business other than a business engaged in as of the date
hereof; and

                  (i) not take any action that would cause its representations
and warranties contained in Section 4.1 to be untrue in any respect or, except
as otherwise contemplated by this Agreement (including Section 7.4(f) of the
Company Disclosure Schedule), make any changes to the corporate structure of
the Company and its Subsidiaries (including the structure of the ownership by
the Company of the direct and indirect interests in its Subsidiaries and of the
ownership by the Company and its Subsidiaries of their respective businesses,
properties and assets).

                  Notwithstanding the foregoing, but subject to the provisions
of Section 7.5 (to the extent applicable), the foregoing provisions of this
Section 7.4 shall not prohibit or restrict in any way the Company from
soliciting or taking other actions to pursue, or entering an agreement with
respect to, an Alternative Proposal.

         7.5      No Solicitation.  The Company agrees with Liberty as follows:

                  (a) After the date of the mailing of the Proxy Statement and,
except as set forth in Section 7.5(d) below, until the Effective Time, the
Company will not, directly or indirectly, through any Subsidiary, Affiliate,
officer, director, employee, agent or representative or otherwise (i) solicit
or initiate the submission of any Alternative Proposal, (ii) cooperate with, or
furnish or cause to be furnished any non-public information concerning the
business, properties, or assets of


                                      55
<PAGE>



the Company or any of the Company's Subsidiaries to any Person other than
Parent or Liberty in connection with any Alternative Proposal, (iii) negotiate
with any Person other than Parent or Liberty with respect to any Alternative
Proposal, or (iv) approve or recommend, or permit the Company or any Subsidiary
to enter into an agreement or understanding with any Person other than Parent
or Liberty relating to, any Alternative Proposal. The Company will immediately
give written notice to Parent and Liberty of the Company's receipt of any
Alternative Proposal or inquiry made to the Company with respect to making an
Alternative Proposal and provide Parent and Liberty with such information
regarding the Person making the Alternative Proposal or inquiry as Parent or
Liberty shall reasonably request and is reasonably available to the Company. As
used in this Section, "Alternative Proposal" shall mean any proposal, other
than as contemplated by this Agreement or otherwise proposed by Parent, Liberty
or their respective Affiliates, for a merger, consolidation, reorganization,
other business combination, or recapitalization involving the Company, for the
acquisition of a 25% or greater interest in the equity of the Company, for the
acquisition of the right to cast 25% or more of the votes on any matter with
respect to the Company, for the acquisition of more than 25% of the assets of
the Company and its Subsidiaries, taken as a whole.

                  (b) Notwithstanding clause (a) above or any other provision
of this Agreement, (i) it is acknowledged and agreed that Section 7.5(a) and
clause (iii) of Section 7.5(c) shall not apply in any manner or respect to, and
the Company shall have no obligation or liability under Section 7.5(a) or
clause (iii) of Section 7.5(c) in respect of, any action or inaction by
Teligent, any Subsidiary of Teligent, or any officer, director, employee, agent
or representative of Teligent or any Subsidiary of Teligent acting in his or
its capacity as such, (ii) if at any time prior to approval and adoption of
this Agreement and the Merger by the Company's stockholders at the Special
Meeting (the "Applicable Period") the Company Board reasonably determines in
good faith (after consultation with the Company's outside legal counsel) that
it is, or is reasonably likely to be, required to do so in order to discharge
properly its fiduciary duties under applicable law, the Company may, in
response to a Superior Proposal (as defined below) which was not solicited or
initiated in violation of Section 7.5(a), take any or all of the action
referred to in clauses (ii) through (iv) of Section 7.5(a) (and in connection
with the actions referred to in such clauses (ii) and (iii) the Company and any
Subsidiary of the Company may enter into one or more customary confidentiality
agreements with the Person or Persons making the Superior Proposal) with
respect to such Superior Proposal, (iii) in response to a Superior Proposal
which was not solicited or initiated in violation of Section 7.5(a), the
Company may withdraw or modify its recommendation of this Agreement and the
Merger if the Company Board reasonably determines in good faith (after
consultation with the Company's outside legal counsel) that it is, or is
reasonably likely to be, required to do so in order to discharge properly its
fiduciary duties under applicable law (provided that in such event this
Agreement and the Merger shall nevertheless be submitted to a vote of the
Company's stockholders at the Special Meeting), and (iv) nothing contained in
this Agreement shall prevent the Company Board or the Company from complying
with Rule l4d-9 and Rule l4e-2 promulgated under the Exchange Act with regard
to an Alternative Proposal. For all purposes of this Agreement, "Superior
Proposal" means any proposal made by a third party to acquire, directly or
indirectly, including pursuant to a tender offer, exchange offer, merger,
consolidation, business combination, asset purchase, recapitalization,
liquidation, dissolution or similar transaction, for consideration consisting
of cash and/or securities, more than



                                      56
<PAGE>





50% of the shares of Company Stock then outstanding or all or substantially all
the assets of the Company, on terms which the Board of Directors of the Company
reasonably determines in its good faith judgment (after consultation with a
financial advisor of nationally recognized reputation) to be more favorable to
the Company's stockholders than the Merger and for which financing, to the
extent required, is then committed or which, in the good faith judgment of the
Company Board, is reasonably capable of being obtained by such third party.

                  (c) Prior to the Effective Time the Company will not, and
will not cause or permit any Subsidiary of the Company to, (i) voluntarily
sell, dispose of, tender or exchange or agree to sell, dispose of, tender or
exchange any shares of Teligent Stock owned by the Company or any Subsidiary of
the Company on the date hereof or hereafter acquired (the "Company Teligent
Shares"), including, without limitation, any such sale or disposition in
connection with a tender offer, exchange offer or similar transaction, (ii)
vote, or execute a written consent or proxy with respect to, the Company
Teligent Shares which the Company or any such Subsidiary is entitled to vote,
in favor of any acquisition by any Person (other than a direct or indirect
wholly owned Subsidiary of Teligent) of Teligent, of a 25% or greater equity
interest in Teligent, or of a substantial portion of the assets of Teligent (a
"Teligent Alternative Transaction") or agree with any other person to vote, or
execute a written consent or proxy, with respect to any such Company Teligent
Shares or (iii) publicly express support for any Teligent Alternative
Transaction by any means including, without limitation, by publicly expressing
an intention to take any of the actions otherwise prohibited by this clause
(c).

                  (d) Notwithstanding the foregoing, the provisions of Section
7.5(a) shall not apply:

                           (i) from and after the date on which a Section
3.4(c)(ii) Delay Notice is given until the earlier of (A) the date of the
consummation or termination of the Parent May Transactions and receipt by the
Company of notice thereof (which shall be deemed to include the public
announcement of such consummation or termination) or (B) the delivery by Parent
of a Section 3.4(c)(ii) Resumption Notice;

                           (ii) from and after the date on which a Blocking
Approval Notice is given until the earlier of (A) the consummation or
termination of the Parent May Transactions and receipt by the Company of notice
thereof (which shall be deemed to include the public announcement of such
consummation or termination), or (B) the receipt of the Parent May Approval
with respect to which Parent delivered such Blocking Approval Notice;

                           (iii) from and after the date on which Parent or any
of its Subsidiaries or Affiliates enters into an agreement for a Parent
Impeding Transaction (which for purposes of this Section 7.5(d) shall not
include any Parent May Transaction) until (A) one business day after the date
of the termination of such Parent Impeding Transaction and receipt by the
Company of notice thereof (which shall be deemed to include the public
announcement of such termination) or (B) in the good faith judgment of the
Company, it is no longer reasonably likely that the applicable conditions to



                                      57
<PAGE>





closing set forth in the definition of "Parent Impeding Transaction" will not
be satisfied as a result of such transaction or prospective transaction; or

                           (iv) from and after November 25, 1999, if all
material Required Filings required to be made on the part of Parent shall not
have been made, filed or given by Parent or any of its Subsidiaries or
Affiliates, until such time as all of such Required Filings have been made,
filed or given by Parent and its Affiliates (provided that such failure shall
not be the result of a breach by the Company of its obligations under Section
3.4).

         7.6 Expenses. Except as otherwise provided in this Agreement, and
subject to any agreements with respect to reimbursement as may otherwise be
agreed by any of the parties hereto (solely with respect to such parties),
whether or not the Merger is consummated, all costs and expenses incurred in
connection with this Agreement and the transactions contemplated hereby shall
be paid by the party incurring such cost or expense, except that the costs and
expenses incurred in connection with printing and mailing the Proxy Statement,
the Registration Statement (and any amendment or supplement thereto) and any
prospectus included in the Registration Statement (and any amendment or
supplement thereto) and the costs of filing under the Hart-Scott Act shall be
borne one-half by Parent and one-half by the Company. Notwithstanding the
foregoing, but subject to Section 10.10, if this Agreement is terminated by a
party (the "non-breaching party") as a result of a material willful breach by
the other party (the "breaching party") of its covenants or agreements
contained herein or the representations and warranties made by it herein, the
breaching party shall reimburse the non-breaching party for all out-of-pocket
costs and expenses incurred in connection with the transactions contemplated by
this Agreement.

         7.7 Actions by Merger Sub. In its capacity as the sole stockholder of
Merger Sub and subject to the terms and conditions of this Agreement, Parent
shall cause Merger Sub to approve and adopt the Merger Proposal and to take all
corporate action necessary on its part to consummate the Merger and the
transactions contemplated hereby.

         7.8 Listing. Parent agrees to use its reasonable efforts to cause the
shares of Parent Common Stock and Class A Liberty Group Stock to be issued in
the Merger to be authorized for listing on the NYSE, subject to official notice
of issuance, and to cause the shares of Class A Liberty Group Stock issuable
upon the exercise of Rollover Options to be listed on the NYSE.

         7.9 Convertible Securities. The Company agrees to take such actions as
are necessary to ensure that, immediately prior to the Effective Time, all
rights to exercise, convert or exchange any Convertible Securities (other than
Rollover Options and TruePosition Options granted in accordance with this
Agreement), whether or not issued under any stock option or similar plans of
the Company or any Subsidiary, will have been exercised by the applicable
holders of such Convertible Securities (other than Rollover Options and
TruePosition Options) or the rights of the applicable holders thereof to so
exercise, convert or exchange such Convertible Securities (other than Rollover
Options and TruePosition Options) following the Effective Time shall have been
canceled, terminated or otherwise rendered null, void and of no further effect.


                                      58
<PAGE>


         7.10 Voting Agreement. Concurrently with the execution and delivery of
this Agreement, the Voting Agreement, a copy of the form of which is attached
hereto as Exhibit 7.10 (the "Voting Agreement"), is being executed by the
stockholders of the Company whose names appear on the signature pages of the
Voting Agreement.

         7.11 Voting of Company Stock Held by Parent or Liberty. Parent and
Liberty, severally and not jointly, agree to vote or cause to be voted all
shares of Company Stock held of record by either of them or their respective
Subsidiaries or controlled Affiliates in favor of approval and adoption of this
Agreement and the Merger.

         7.12 Indemnification of Directors and Officers; Insurance. (a) From
and after the Effective Time, Liberty and the Surviving Entity shall jointly
and severally indemnify, defend and hold harmless the present and former
officers, directors and employees of the Company and any of its Subsidiaries,
and any Person who is or was serving at the request of the Company as an
officer, director or employee or agent of another Person (each, an "Indemnified
Party" and together, the "Indemnified Parties") (and shall also, subject to
Section 7.12(b), advance expenses as incurred to the fullest extent permitted
under the DGCL, provided that the Person to whom expenses are advanced provides
an undertaking to repay such advances if it is ultimately determined that such
Person is not entitled to indemnification), against (i) all losses, costs,
expenses, claims, damages, judgments or liabilities arising out of, or in
connection with, any claim, action, suit, proceeding or investigation based in
whole or in part on the fact that the Indemnified Party is or was an officer,
director or employee of the Company or any of its Subsidiaries, or is or was
serving at the request of the Company as an officer, director or employee or
agent of another Person, pertaining to any matter existing or occurring before
or at the Effective Time and whether asserted or claimed before, at or after,
the Effective Time (the "Indemnified Liabilities") and (ii) all Indemnified
Liabilities based in whole or in part on, or arising in whole or in part out
of, or pertaining to this Agreement, the Merger or any other transactions
contemplated hereby or thereby, in each case to the fullest extent permitted
under the DGCL (notwithstanding the Charter, Bylaws or similar organizational
documents of the Company, the Surviving Entity, Parent or Liberty); provided,
however, that such indemnification shall be provided only to the extent any
directors' and officers' liability insurance policy of the Company or its
Subsidiaries does not provide coverage and actual payment thereunder with
respect to the matters that would otherwise be subject to indemnification
hereunder (it being understood that Liberty or the Surviving Entity shall,
subject to Section 7.12(b), advance expenses on a current basis as provided in
this paragraph (a) notwithstanding such insurance coverage to the extent that
payments thereunder have not yet been made, in which case Liberty or the
Surviving Entity, as the case may be, shall be entitled to repayment of such
advances from the proceeds of such insurance coverage). Liberty and Merger Sub
agree that all rights to indemnification, including provisions relating to
advances of expenses incurred in defense of any action, suit or proceeding,
whether civil, criminal, administrative or investigative (each, a "Claim"),
existing in favor of the Indemnified Parties as provided in the Company's
Charter or Bylaws or pursuant to other agreements, or certificates of
incorporation or bylaws or similar documents of any of the Company's
Subsidiaries, as in effect as of the date hereof, with respect to matters
occurring through the Effective Time, shall survive the Merger and shall
continue in full force and effect for a period of not less than


                                      59
<PAGE>


six years from the Effective Time; provided, however, that all rights to
indemnification in respect of any Claim asserted, made or commenced within such
period shall continue until the final disposition of such Claim. The Surviving
Entity shall, and Liberty shall cause the Surviving Entity to, maintain in
effect for not less than three years after the Effective Time the current
policies of directors' and officers' liability insurance maintained by the
Company and the Company's Subsidiaries with respect to matters occurring prior
to or at the Effective Time; provided, however, that (i) the Surviving Entity
may substitute therefor policies of at least the same coverage containing terms
and conditions which are no less advantageous to the Indemnified Parties with
an insurance company or companies, the claims paying ability of which is
substantially equivalent to the claims paying ability of the insurance company
or companies providing currently such insurance coverage for directors and
officers of the Company, and (ii) the Surviving Entity shall not be required to
pay an annual premium for such insurance in excess of three times the last
annual premium paid prior to the date hereof, but in such case shall purchase
as much coverage as possible for such amount.

                  (b) If any Claim relating hereto or to the transactions
contemplated by this Agreement is commenced before the Effective Time, the
Company, Liberty and the Surviving Entity hereto agree to cooperate and use
their respective reasonable efforts to vigorously defend against and respond
thereto. Any Indemnified Party wishing to claim indemnification under paragraph
(a) of this Section 7.12, upon learning of any such claim, action, suit,
proceeding or investigation (whether arising before, at or after the Effective
Time), shall promptly notify Liberty thereof (but the failure so to notify
shall not relieve the Company, Liberty or the Surviving Entity from any
liability which it may have under this Section 7.12 except to the extent such
failure materially prejudices such party), whereupon Liberty or the Surviving
Entity shall have the right, from and after the Effective Time, to assume from
such Indemnified Party and control the defense thereof on behalf of such
Indemnified Party, and upon such assumption, the Surviving Entity shall not be
liable to such Indemnified Parties for any legal expenses of other counsel or
any other expenses subsequently incurred by such Indemnified Parties in
connection with the defense thereof. Notwithstanding the foregoing, if counsel
for the Indemnified Parties advises that there are issues which raise conflicts
of interest between Liberty or the Surviving Entity and the Indemnified
Parties, the Indemnified Parties may retain separate counsel and Liberty shall
pay or cause to be paid all reasonable fees and expenses of such counsel;
provided that Liberty shall not be obligated pursuant to this Section 7.12(b)
to pay or cause to be paid for more than one firm or counsel to represent all
Indemnified Parties in any jurisdiction unless there is, under applicable
standards of professional conduct, a conflict on any significant issue between
the positions of any two or more Indemnified Parties. Neither Liberty nor the
Surviving Entity shall be liable for any settlement effected without its prior
written consent, which consent, however, shall not be unreasonably withheld.

                  (c) This Section 7.12 is intended to benefit the Indemnified
Parties and shall be enforceable by each Indemnified Party, his or her heirs
and representatives and shall be binding on all successors and assigns of
Liberty, Merger Sub and the Surviving Entity.

         7.13 Tax Matters. Each party represents and warrants to the other
parties that the statements in the proposed form of certificate of such party
(the "Party's Certificate") attached,



                                      60
<PAGE>





respectively, as Exhibits 7.13 (i) through (iii) to be delivered by such party
in connection with the opinions (or reliance letter) to be delivered pursuant
to Sections 8.2(j), 8.3(h) and 8.4(h), except for Parent with respect to
numbered paragraph 10 in its Party's Certificate, are true and correct as of
the date hereof, assuming for purposes of this sentence that the Merger had
been consummated on the date hereof. Each party agrees that, at and prior to
the Effective Time, it will not take any action that would cause any of the
statements in the Party's Certificate to be false; provided, that the parties
acknowledge that (i) the actions specified in Exhibit 7.15 attached hereto
would not have such an effect and (ii) the ownership of 90,000 shares of
Company Stock by Liberty Ventures Group LLC and the conversion of such stock
into the Merger Consideration pursuant to this Agreement would not have such an
effect. Unless and then only to the extent otherwise required by a
"determination" (as defined in Section 1313(a)(1) of the Code) or by a similar
applicable provision of state or local income or franchise tax or law, each
party agrees (i) to report the Merger and the Specified Post-Merger
Restructuring Transactions on all tax returns and other filings as a tax-free
reorganization within the meaning of Section 368(a) of the Code and (ii) not to
take any position in any audit, administrative proceeding or litigation that is
inconsistent with the characterization of the Merger and the Specified
Post-Merger Restructuring Transactions as such a reorganization.

         7.14 Certificates as to Indebtedness. The Company shall cause each
applicable lender with respect to any outstanding Indebtedness of the Company
as of the Effective Time to deliver a certificate to Parent and Liberty at the
Closing certifying the amount of outstanding Indebtedness of the Company to
such lender as of such time.

         7.15 Restructuring Transactions. To the extent permitted by applicable
Law, (i) the parties shall cause the Pre-Merger Restructuring Transactions to
be consummated and (ii) Parent and Liberty shall cause the Post-Merger
Restructuring Transactions to be consummated, in either case as described in
Exhibit 7.15, as the same may be modified or amended by mutual agreement of the
parties.


                                  ARTICLE VIII

                              CONDITIONS PRECEDENT

         8.1 Conditions Precedent to the Obligations of Parent, Merger Sub, and
the Company for the Benefit of Parent, Merger Sub, Liberty and the Company. The
respective obligations of Parent, Merger Sub and the Company to consummate the
Merger are subject to the satisfaction at or prior to the Closing Date of each
of the following conditions, any of which, to the extent permitted by
applicable law, may be waived by Parent (only with the concurrence of Liberty),
for itself and Merger Sub (but not for the Company), or by the Company for
itself (but not for Parent, Merger Sub or Liberty):

                  (a) Approval of Stockholders. This Agreement shall have been
approved and adopted by such vote of the stockholders of the Company as set
forth in Section 4.15.



                                      61
<PAGE>





                  (b) Registration. The Registration Statement (as amended or
supplemented) shall have become effective under the Securities Act and shall
not be subject to any stop order, and no action, suit, proceeding or
investigation by the Commission seeking a stop order or to suspend the
effectiveness of the Registration Statement shall have been initiated and be
continuing. Parent shall have received all state securities law or blue sky
permits and authorizations necessary to issue the Merger Consideration as
contemplated hereby and such permits and authorizations shall be in full force
and effect.

                  (c) Hart-Scott Act. Any applicable waiting period (and any
extension thereof) under the Hart-Scott Act shall have expired or been
terminated.

                  (d) NYSE Listing. The shares of Parent Common Stock and Class
A Liberty Group Stock to be issued in the Merger shall have been authorized for
listing on the NYSE subject only to official notice of issuance.

         8.2 Conditions Precedent to the Obligations of Parent and Merger Sub
for the Benefit of Liberty. The obligations of Parent and Merger Sub to
consummate the Merger are also subject to the satisfaction at or prior to the
Closing Date of each of the following conditions, which conditions are solely
for the benefit of Liberty, and any or all of which may be asserted or waived
solely by Liberty acting alone:

                  (a) Accuracy of Representations and Warranties. (i) The
aggregate effect of (A) all inaccuracies in the representations and warranties
of the Company set forth in this Agreement, other than clause (i) of Section
4.6, without taking into account any qualifications as to materiality (with the
exception of Sections 4.4(a) and (b) and 4.7) or Material Adverse Effect
contained in such representations and warranties, and (B) any adverse changes,
events occurring and/or conditions existing, with respect to the Company since
December 31, 1998 that is not set forth on Section 4.6 of the Company
Disclosure Schedule or disclosed in the Company SEC Reports filed prior to the
date hereof or the Teligent SEC Reports (it being understood, however, that for
purposes of this clause (i), the accuracy of any representations or warranty
which speaks as of the date of this Agreement or another date prior to the
Closing Date shall be determined solely as of the date of this Agreement or
such other date and not as of the Closing Date) does not and is not reasonably
likely to have a Material Adverse Effect or a Transaction Adverse Effect, and
(ii) the representations and warranties of the Company contained in Sections
4.1, 4.2 and 4.3 shall, if specifically qualified by materiality or Material
Adverse Effect, be true and correct and, if not so qualified, be true and
correct in all material respects, in each case as of the date hereof, and,
except to the extent such representations and warranties speak as of an earlier
date, on and as of the Closing Date as though made on and as of the Closing
Date, except for changes permitted or contemplated by this Agreement.

                  (b) Performance of Agreements. The Company shall have
performed in all material respects all obligations and agreements, and complied
in all material respects with all



                                      62
<PAGE>





covenants and conditions, contained in this Agreement to be performed or
complied with by it prior to or on the Closing Date.

                  (c) Compliance Certificate. The Company shall have delivered
to Liberty a certificate, dated the Closing Date, signed by the President or
any Vice President of the Company (but without personal liability thereto),
certifying as to the fulfillment of the conditions specified in Section 8.2(a)
and 8.2(b).

                  (d) Absence of Injunctions and Proceedings. No action or
proceeding by any Governmental Entity seeking a permanent or preliminary
Injunction or restraining order or other order by any court or other
Governmental Entity of competent jurisdiction or other legal restraint or
prohibition shall be pending which, if determined in a manner adverse to the
Company, Liberty or Parent, would have the effect of, and no such Injunction or
other order, restraint or prohibition in an action or proceeding (whether by a
Governmental Entity or otherwise) shall be in effect, (i) preventing
consummation of the transactions contemplated hereby as provided herein, or
permitting such consummation only subject to any condition or restriction that
has had or would have a Transaction Adverse Effect, a Teligent Material Adverse
Effect, a Teligent Interest Material Adverse Effect (but without regard to item
(k) set forth in Section 1.1(b) of the Company Disclosure Schedule) or a
Material Adverse Effect (or an effect on Liberty and its Subsidiaries and
Affiliates that, were the Company and its Subsidiaries subjected to the same
(or a materially similar) effect, would constitute a Material Adverse Effect),
(ii) requiring the divestiture, as a result of consummation of the Merger, of a
material portion of the business or assets of Liberty and its Subsidiaries and
Affiliates taken as a whole, (iii) imposing material limitations on the ability
of Liberty effectively to exercise full rights of ownership of shares of
capital stock or other ownership interests of the Surviving Entity (including
the right to vote such shares or other ownership interests on all matters
properly presented to the stockholders or other equity holders of the Surviving
Entity) or making the holding by Liberty of any such shares or other ownership
interests illegal or subject to any materially burdensome requirement or
condition or prohibiting the consummation of the Post-Merger Restructuring
Transactions, or (iv) requiring Liberty, its Subsidiaries or Affiliates or the
Company or any of its material Subsidiaries to cease or refrain from engaging
in any material business, including any material business conducted by the
Company or any of its Subsidiaries, as a result of the consummation of the
Merger.

                  (e) No Adverse Enactments. No statute, rule, regulation, Law,
order, judgment or decree enacted, promulgated, entered, issued, enforced or
deemed applicable by any foreign or United States federal, state or local
Governmental Entity of competent jurisdiction shall be in effect which (i)
makes this Agreement or the Merger illegal or imposes or is reasonably likely
to impose material damages or penalties in connection therewith, (ii) requires
or is reasonably likely to require, as a result of the consummation of the
Merger, the divestiture of or any restrictions or conditions on the conduct of
(A) a portion of the business or assets of the Company and its Subsidiaries,
taken as a whole, which would have a Material Adverse Effect, or (B) a material
portion of the business or assets of Liberty and its Subsidiaries and
Affiliates taken as a whole, (iii) imposes or is reasonably likely to result in
imposition of material limitations on the ability of Liberty effectively to
exercise


                                      63
<PAGE>



full rights of ownership of shares of capital stock or other ownership
interests of the Surviving Entity (including the right to vote such shares or
other ownership interests on all matters properly presented to the stockholders
or other equity holders of the Surviving Entity) or makes the holding by
Liberty of any such shares or other ownership interests illegal or subject to
any materially burdensome requirement or condition or prohibits the
consummation of the Post-Merger Restructuring Transactions, or (iv) requires or
is reasonably likely to require Liberty or its Subsidiaries or Affiliates or
the Company or any of its material Subsidiaries to cease or refrain from
engaging in any material business, including in the case of Liberty any
material business conducted by the Company or any of its Subsidiaries prior to
the Merger, as a result of the consummation of the Merger.

                  (f) Governmental Consents, Etc. Other than the filing of the
Certificate of Merger with the Delaware Secretary of State and filings due
after the Effective Time, all Local Approvals, and all other Governmental
Consents (other than those specified in Sections 8.1(c), 8.2(g) and 8.3(g) and
8.4(g)) as are required in connection with the consummation of the Merger shall
have been obtained and shall be in full force and effect without any condition,
limitation or restriction, all Governmental Filings as are required in
connection with the consummation of the Merger shall have been made, and all
waiting periods, if any, applicable to the consummation of the Merger imposed
by any Governmental Entity (other than those specified in Section 8.1(c)) shall
have expired, other than any of the foregoing which, if not so obtained, in
force or effect, made or expired (as the case may be) would not, either
individually or in the aggregate, have (i) a Material Adverse Effect (or an
effect on Liberty and its Subsidiaries and Affiliates that, were the Company
and its Subsidiaries subjected to the same (or a materially similar) effect,
would constitute a Material Adverse Effect), (ii) a Teligent Material Adverse
Effect or (iii) a Transaction Adverse Effect.

                  (g) FCC. All FCC Consents shall have been granted without any
condition, limitation or restriction that has or would have a Teligent Interest
Material Adverse Effect, a Teligent Material Adverse Effect, a Material Adverse
Effect (or an effect on Liberty and its Subsidiaries and Affiliates that, were
the Company and its Subsidiaries subjected to the same (or a materially
similar) effect, would constitute a Material Adverse Effect).

                  (h) Teligent Board. The person(s) designated by Liberty
pursuant to Section 3.8 shall have been elected to (and not removed from) the
board of directors of Teligent.

                  (i) Teligent Material Adverse Effect. The aggregate impact of
(i) any inaccuracies in the Company's representation and warranty contained in
Section 4.4(b), determined without regard to the qualifications therein based
on the knowledge of the Company and (ii) any adverse changes, events occurring,
and/or conditions arising after December 31, 1998 with respect to the business,
assets or financial condition of Teligent and its Subsidiaries that is not set
forth in Section 8.2(i) of the Company Disclosure Schedule or disclosed in the
Company SEC Reports or the Teligent SEC Reports, in each case as of the date
hereof, taken as a whole, shall not represent or, insofar as can be reasonably
foreseen, be reasonably likely to represent, a Teligent Material Adverse
Effect. No changes, events or conditions shall have occurred or arisen which
either individually or


                                      64
<PAGE>


in the aggregate represent or, insofar as can reasonably be foreseen, are
reasonably likely to represent a Teligent Interest Material Adverse Effect.

                  (j) Tax Opinion. Liberty shall be entitled to rely upon the
opinion of Baker & Botts, L.L.P., dated the Effective Time, delivered to Parent
pursuant to Section 8.3(h) to the effect that, for United States federal income
tax purposes, (i) the Merger and the Specified Post-Merger Restructuring
Transactions should be treated as a reorganization within the meaning of
Section 368(a) of the Code; (ii) each of Parent and the Company should be a
party to the reorganization within the meaning of Section 368(b) of the Code;
(iii) no gain or loss should be recognized by Parent or any member of its
consolidated group as a result of the Merger and the issuance of shares of
Parent Common Stock and Class A Liberty Group Stock in connection therewith
(other than any gain arising from the matters described in clause (ii) of the
proviso to the second sentence of Section 7.13); and (iv) no gain or loss
should be recognized by the Company as a result of the Merger (other than any
gain arising from the matters described in clause (ii) of the proviso to the
second sentence of Section 7.13). In rendering such opinion, Baker & Botts,
L.L.P. may require and rely upon (and may incorporate by reference) the
representations and covenants made by the parties in the certificates referred
to in Section 7.13.

                  (k) Teligent Alternative Transaction. There shall not have
occurred, nor shall Teligent or any Affiliate of Teligent (including for such
purposes the Company and its Subsidiaries) have entered into any agreement
providing for, a Teligent Alternative Transaction, other than (i) a Permitted
Teligent Disposition in accordance with clause (ii) of the proviso in Section
3.4(b) under the circumstances described therein or (ii) a Teligent Alternative
Transaction approved by the Company's representatives on the board of directors
of Teligent (but only if such representatives reasonably determine in good
faith (after consultation with the Company's outside legal counsel) that such
approval was, or was reasonably likely to be, required in order to discharge
properly their respective fiduciary duties under applicable law) after advising
Liberty of the proposed material terms of such potential Teligent Alternative
Transaction, unless the Company reasonably determines in its good faith
judgment, after consultation with the Company's outside legal counsel, that to
do so would be, or would be reasonably likely to be, inconsistent with the
proper discharge of fiduciary duties (of the Company's representatives on
Teligent's board of directors or otherwise) under applicable law.

                  (l) Pre-Merger Restructuring Transactions. The Pre-Merger
Restructuring Transactions described in clauses (i) and (ii) of Section 3.9
shall have been completed.

         8.3 Conditions Precedent to the Obligations of Parent and Merger Sub
for the Benefit of Parent. The obligations of Parent and Merger Sub to
consummate the Merger are also subject to the satisfaction at or prior to the
Closing Date of each of the following conditions, which conditions are solely
for the benefit of Parent, and any or all of which may be waived solely by
Parent acting alone:



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                  (a) Accuracy of Representations and Warranties. (i) The
aggregate effect of all inaccuracies in the representations and warranties of
the Company set forth in Sections 4.1 through 4.4, subsections (i), (ii), (iv)
and (v) of Section 4.5, Sections 4.7, 4.14 and Sections 4.18 through 4.23 of
this Agreement, without taking into account any qualifications as to
materiality (with the exception of Sections 4.4(a) and (b) and 4.7) or Material
Adverse Effect contained in such representations and warranties (it being
understood, however, that for purposes of this clause (i), the accuracy of any
representations or warranty which speaks as of the date of this Agreement or
another date prior to the Closing Date shall be determined solely as of the
date of this Agreement or such other date and not as of the Closing Date), does
not and is not reasonably likely to have a Parent Adverse Effect or a
Transaction Adverse Effect, and (ii) the representations and warranties of the
Company contained in Sections 4.1, 4.2 and 4.3 shall, if specifically qualified
by materiality or Material Adverse Effect, be true and correct and, if not so
qualified, be true and correct in all material respects, in each case as of the
date hereof, and, except to the extent such representations and warranties
speak as of an earlier date, on and as of the Closing Date as though made on
and as of the Closing Date, except for changes permitted or contemplated by
this Agreement.

                  (b) Performance of Agreements. The Company shall have
performed in all material respects all obligations and agreements, and complied
in all material respects with all covenants and conditions, contained in this
Agreement to be performed or complied with by it prior to or on the Closing
Date (other than those contained in Sections 3.8, 3.10, 7.4(a), (b) and (c)(ii)
through (c)(x) (except, in the case of (c)(x), to the extent applicable to
Sections 7.4(c)(i), 7.4(d) through (g), 7.5, 7.15 (with respect to any
Post-Merger Restructuring Transactions) and 9.2(a) through (d)).

                  (c) Compliance Certificate. The Company shall have delivered
to Parent a certificate, dated the Closing Date, signed by the President or any
Vice President of the Company (but without personal liability thereto),
certifying as to the fulfillment of the conditions specified in Section 8.3(a),
8.3(b), 8.3(i) and 8.3(j).

                  (d) Absence of Injunctions and Proceedings. No action or
proceeding by any Governmental Entity seeking a permanent or preliminary
Injunction or restraining order or other order by any court or other
Governmental Entity of competent jurisdiction or other legal restraint or
prohibition shall be pending which, if determined in a manner adverse to the
Company, Liberty or Parent, could have the effect of, and no such Injunction or
other order, restraint or prohibition in an action or proceeding (whether by a
Governmental Entity or otherwise) shall be in effect, preventing consummation
of the transactions contemplated hereby as provided herein, or permitting such
consummation only subject to any condition or restriction that has had or would
have a Transaction Adverse Effect or a Parent Adverse Effect.

                  (e) No Adverse Enactments. No statute, rule, regulation, Law,
order, judgment or decree enacted, promulgated, entered, issued, enforced or
deemed applicable by any foreign or United States federal, state or local
Governmental Entity of competent jurisdiction shall be in effect which (i)
makes this Agreement or the Merger illegal or imposes or is reasonably likely
to impose



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material damages or penalties in connection therewith, (ii) requires or is
reasonably likely to require, in Parent's reasonable judgment, the divestiture
of or any restrictions or conditions on the conduct of any portion of the
business or any assets of Parent or any of its Subsidiaries (or any
reorganization or restructuring thereof) that would have a Parent Adverse
Effect, in any such case as a result of the consummation of the Merger, (iii)
imposes or is reasonably likely to result in imposition of material limitations
on the ability of Parent or Liberty effectively to exercise full rights of
ownership of shares of capital stock or other ownership interests of the
Surviving Entity (including the right to vote such shares or other ownership
interests on all matters properly presented to the stockholders or other equity
holders of the Surviving Entity) to the extent necessary to effect the
Post-Merger Restructuring Transactions, or makes the holding by Parent or
Liberty of any such shares or other ownership interests illegal or subject to
any materially burdensome requirement or condition or in any way limits,
prohibits or places any burdens (other than any such burdens which are
insignificant in nature or consequence) on the consummation of the Post-Merger
Restructuring Transactions, (iv) requires or is reasonably likely to require
Parent or any of its material Subsidiaries to cease or refrain from engaging in
any material business, whether or not such business is conducted by the Company
or any of its Subsidiaries, as a result of the consummation of the Merger, or
(v) in Parent's reasonable judgment, otherwise would have a Parent Adverse
Effect, as a result of the consummation of the Merger.

                  (f) Governmental Consents, Etc. Other than the filing of the
Certificate of Merger with the Delaware Secretary of State and filings due
after the Effective Time, all Local Approvals, and all other Governmental
Consents (other than those specified in Sections 8.1(c), 8.2(g), 8.3(g) and
8.4(g)) as are required in connection with the consummation of the Merger shall
have been obtained and shall be in full force and effect without any condition,
limitation or restriction, all Governmental Filings as are required in
connection with the consummation of the Merger shall have been made, and all
waiting periods, if any, applicable to the consummation of the Merger imposed
by any Governmental Entity (other than those specified in Section 8.1(c)) shall
have expired, other than any of the foregoing which, if not so obtained, in
force or effect, made or expired (as the case may be) would not, in Parent's
reasonable judgement, either individually or in the aggregate, have (i) a
Transaction Adverse Effect or (ii) a Parent Adverse Effect.

                  (g) FCC. All FCC Consents shall have been granted without any
condition, limitation or restriction that has or would have, in Parent's
reasonable judgment, a Parent Adverse Effect.

                  (h) Tax Opinion. Parent shall have received the opinion of
Baker & Botts, L.L.P., dated the Effective Time, to the effect that, for United
States federal income tax purposes, (i) the Merger and the Specified
Post-Merger Restructuring Transactions should be treated as a reorganization
within the meaning of Section 368(a) of the Code; (ii) each of Parent and the
Company should be a party to the reorganization within the meaning of Section
368(b) of the Code; (iii) no gain or loss should be recognized by Parent or any
member of its consolidated group as a result of the Merger and the issuance of
shares of Parent Common Stock and Class A Liberty Group Stock in connection
therewith (other than any gain arising from the matters described in clause
(ii)


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<PAGE>


of the proviso to the second sentence of Section 7.13); and (iv) no gain or
loss should be recognized by the Company as a result of the Merger (other than
any gain arising from the matters described in clause (ii) of the proviso to
the second sentence of Section 7.13). In rendering such opinion, Baker & Botts,
L.L.P. may require and rely upon (and may incorporate by reference) the
representations and covenants made by the parties in the certificates referred
to in Section 7.13.

                  (i) Certain Agreements. None of the Company, Teligent or
Portatel or any Subsidiaries of any of them shall be a party to any contract,
agreement or understanding that would at the Effective Time be legally
enforceable against Parent or any of its Subsidiaries (other than Liberty, the
Liberty Affiliates, the Company, Teligent, Portatel and their respective
Subsidiaries), except as would not have a Parent Adverse Effect.

                  (j) Certain Licenses. Subject to the disclosure in Section
8.3 of the Company Disclosure Schedule (including the excerpts from the Company
SEC Reports and the Teligent 10-K included therein), the Company, Teligent and
Portatel and their respective Subsidiaries, shall hold, and be in compliance
with the terms of, and shall have duly and currently filed all reports and
other information required to be filed by them in connection with, all
licenses, franchises, ordinances, authorizations, permits, certificates,
variances, exceptions, concessions, leases, rights of way, easements,
instruments, orders and approvals of Governmental Entities required for the
ownership and operation of the assets and facilities of their respective
businesses, except for any failure to so hold, be in compliance with the terms
of, or have duly and currently filed, that in the reasonable judgment of Parent
would not have a Parent Adverse Effect.

                  (k) Pre-Merger Restructuring Transactions. The Pre-Merger
Restructuring Transactions described in clause (ii) of Section 3.9 and
paragraph 6(a) of Exhibit 7.15 shall have been completed (except to the extent
that the failure to be completed of the transactions described in such
paragraph 6(a) results from a breach by Parent of Section 7.15).

                  (l) No Liberty Notice. Parent shall not have been notified by
Liberty that any of the Conditions set forth in this Article VIII (other than
Section 8.4) shall remain unsatisfied.

                  (m) Performance of Agreements. Liberty shall have performed
in all material respects all obligations and agreements, and complied in all
material respects with all covenants and conditions, to be performed or
complied with by it hereunder, prior to or on the Closing Date and Liberty
shall have delivered to Parent a certificate dated as of the Closing Date,
signed by the President or any Vice President of Liberty (but without personal
liability thereto) certifying as to the matters described in this Section
8.4(m).

                  (n) Certain Restructuring Transactions. There shall exist no
material legal impediment to the consummation of the transactions and other
events contemplated by the first sentence of Paragraph 8 of Exhibit 7.15
immediately following the Effective Time (other than the prompt taking of
customary corporate actions within the control of Parent and/or Liberty and the


                                      68
<PAGE>



filing of an amended certificate of incorporation for the Surviving Entity with
the Delaware Secretary of State).

         8.4 Conditions Precedent to the Obligations of the Company. The
obligation of the Company to consummate the Merger is also subject to the
satisfaction at or prior to the Closing Date of each of the following
conditions, unless waived by the Company:

                  (a) Accuracy of Representations and Warranties. (i) The
aggregate effect of (A) all inaccuracies in the representations and warranties
of Parent and Liberty set forth in this Agreement other than in Section 6.6
(without taking into account any qualifications as to materiality, except as
used in Sections 5.7, 6.4 and 6.5, Parent Material Adverse Effect or Liberty
Material Adverse Effect contained in such representations and warranties), and
(B) any adverse changes in, events occurring and/or conditions existing with
respect to Liberty since December 31, 1998 that is not disclosed in the Liberty
Group Information (it being understood, however, that for purposes of this
clause (i) the accuracy of any representation or warranty which speaks as of
the date of this Agreement or another date prior to the Closing Date shall be
determined solely as of the date of this Agreement or such other date and not
as of the Closing Date) does not and will not have insofar as can be reasonably
foreseen a Parent Material Adverse Effect, a Liberty Material Adverse Effect or
a Transaction Adverse Effect, and (ii) the representations and warranties of
Parent contained in Sections 5.1, 5.2, 5.3 and 5.6 and of Liberty in Sections
6.1, 6.2 and 6.3 shall, if specifically qualified by materiality, be true and
correct and, if not so qualified, be true and correct in all material respects,
in each case as of the date hereof, and, except to the extent such
representations and warranties speak as of an earlier date, on and as of the
Closing Date as though made on and as of the Closing Date, except for changes
permitted or contemplated by this Agreement.

                  (b) Performance of Agreements. Each of Merger Sub, Liberty
and Parent shall have performed in all material respects all obligations and
agreements, and complied in all material respects with all covenants and
conditions, contained in this Agreement to be performed or complied with by it
prior to or on the Closing Date.

                  (c) Officers' Certificates. (i) Liberty shall have delivered
to the Company a certificate dated the Closing Date, signed by the President or
any Vice President of Liberty (but without personal liability thereto)
certifying as to the fulfillment of the conditions specified in Sections 8.4(a)
and 8.4(b) (insofar as each relates to Liberty) and (ii) Parent shall have
delivered to the Company a certificate, dated the Closing Date, signed by the
President or any Vice President of Parent (but without personal liability
thereto), certifying as to the fulfillment of the conditions specified in
Section 8.4(a) and 8.4(b) (insofar as each relates to Parent and Merger Sub).

                  (d) Absence of Injunctions. No permanent or preliminary
Injunction or restraining order or other by any court or other Government
Entity of competent jurisdiction, or other legal restraint or prohibition,
shall be in effect preventing consummation of the transactions contemplated
hereby as provided herein, or permitting such consummation only subject to any


                                      69
<PAGE>



condition or restriction that has had or would have a Liberty Material Adverse
Effect or a Transaction Adverse Effect.

                  (e) No Adverse Enactments. No statute, rule or regulation
enacted, promulgated, entered, issued, enforced or deemed applicable by any
foreign or United States federal, state or local Governmental Entity of
competent jurisdiction shall be in effect, and there shall be no action, suit
or proceeding brought by any such Governmental Entity and pending which (i)
makes or may make this Agreement or the Merger illegal or (ii) has or is
reasonably likely to have a Liberty Material Adverse Effect.

                  (f) Governmental Consents, Etc. Other than the filing of the
Certificate of Merger with the Delaware Secretary of State and filings due
after the Effective Time, all Local Approvals, and all other Governmental
Consents (other than those specified in Sections 8.1(c), 8.2(g), 8.3(g) and
8.4(g)) as are required in connection with the consummation of the Merger shall
have been obtained and shall be in full force and effect, all Governmental
Filings as are required in connection with the consummation of the Merger shall
have been made, and all waiting periods, if any, applicable to the consummation
of the Merger imposed by any Governmental Entity (other than those specified in
Section 8.1(d)) shall have expired, other than any of the foregoing which, if
not obtained, in force or effect, made or expired (as the case may be), would
not, either individually or in the aggregate, have a Liberty Material Adverse
Effect or a Transaction Adverse Effect.

                  (g) FCC. All FCC Consents shall have been granted without any
condition that has or would have a Liberty Material Adverse Effect.

                  (h) Tax Opinion. The Company shall have received an opinion
of Skadden, Arps, Slate, Meagher & Flom LLP, dated the Effective Time, to the
effect that, for United States federal income tax purposes, (i) the Merger and
the Specified Post-Merger Restructuring Transactions should be treated as a
reorganization within the meaning of Section 368(a) of the Code; (ii) each of
Parent and the Company should be a party to the reorganization within the
meaning of Section 368(b) of the Code; and (iii) no gain or loss should be
recognized by a stockholder of the Company as a result of the Merger and the
Specified Post-Merger Transactions with respect to the Company Stock converted
solely into Parent Common Stock or Class A Liberty Group Stock in the Merger.
In rendering such opinion, Skadden, Arps, Slate, Meagher & Flom LLP may require
and rely upon (and may incorporate by reference) the representations and
covenants made by the parties in the certificates referred to in Section 7.13.

                  (i) Specified Post-Merger Restructuring Transactions. All
documentation necessary to effect the Cayman Continuation, including all
Governmental Filings required to be made in connection therewith, shall be in
form and substance reasonably satisfactory to the Company and shall have been,
to the extent practicable, executed and, except for the making of such
Governmental Filings, all actions necessary to consummate the Cayman
Continuation shall have been duly taken.




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                                   ARTICLE IX

                                  TERMINATION

         9.1 Termination and Abandonment. This Agreement may be terminated and
the transactions contemplated hereby may be abandoned at any time prior to the
Effective Time, whether before or after approval and adoption of this Agreement
by the stockholders of the Company:

                  (i) by mutual consent of Parent, Liberty and the Company;

                  (ii) by any of the Company, Parent or Liberty: (A) if the
Merger shall not have been consummated on or before March 31, 2000, provided
that the right to terminate this Agreement pursuant to this clause (ii)(A)
shall not be available to any party whose failure to perform any of its
obligations under this Agreement has been the cause of or resulted in the
failure of the Merger to be consummated on or before such date, and provided
further that if the Merger has not been consummated on or before March 31, 2000
solely as a result of the failure of the conditions set forth in Sections
8.1(b) (if the failure to satisfy such condition is the result of any material
acquisition or other transaction, or agreement with respect thereto, engaged
in, or entered into, by Parent or Liberty or any of their respective Affiliates
whether prior to or after the date hereof), 8.1(c), 8.2(d), 8.2(f), 8.2(g),
8.3(d), 8.3(f), 8.3(g), 8.4(f) or 8.4(g) to be satisfied or waived, any party,
by written notice to each other party, may extend such date up to June 30, 2000
(or, in the case of a failure to be satisfied of the condition set forth in
8.1(b) under the circumstances described above in this sentence, such later
date (not later than six months following the date of the consummation or
termination of the Parent May Transactions and the receipt by the Company of
notice thereof (the Company shall be deemed to have received notice of the
consummation or termination of the Parent May Transactions if Parent discloses
such consummation or termination in a publicly available filing with the
Commission)) that is up to 45 days following the effectiveness of the
Registration Statement, and provided that in the case of a failure to be
satisfied of any of the other conditions specified in this clause (A) which is
caused by or results from a material acquisition or other transaction, or
agreement with respect thereto, engaged in, or entered into, by Parent or
Liberty or their respective Affiliates, whether prior to or after the date
hereof, the Company may extend such date up to December 31, 2000) (provided
that neither Parent nor Liberty shall terminate this Agreement pursuant to this
clause (A) until the later of (x) six months following the consummation or
termination of the Parent May Transactions or (y) December 31, 2000), (B) if
there has been a material breach of any representation, warranty, covenant or
agreement on the part of any other party contained in this Agreement, in each
case that is not curable, such that the conditions set forth in Sections 8.2(a)
or (b) or Sections 8.3(a) or (b), in the case of such a breach by the Company,
or Sections 8.4(a) or (b), in the case of such a breach by Parent, Merger Sub
or Liberty, cannot be satisfied, (C) if any court of competent jurisdiction or
other competent Governmental Entity shall have issued an order, decree or
ruling or taken any other action permanently restraining, enjoining or
otherwise prohibiting the Merger or any of the Post-Merger Restructuring
Transactions and such order, decree, ruling or other action shall have become
final and nonappealable, or (D) the stockholders of the Company fail to approve
and adopt the Merger Proposal by the requisite vote (I)


                                      71
<PAGE>

at the Special Meeting, or (II) by the date one day prior to the applicable
date referred to in (A) above, provided the Registration Statement became
effective (unless the failure of the Registration Statement to become effective
is the result of the Company's material breach of Section 3.2(a)) and remained
effective such that the Proxy Statement could be mailed to the Company
stockholders and the Special Meeting held prior to such applicable date
(provided that Parent shall not terminate this Agreement pursuant to this
clause (D) without the concurrence of Liberty);

                  (iii) by Liberty if (x) the Company Board withdraws or
modifies, in a manner adverse to Parent or Liberty, its approval or
recommendation of the Merger or (y) the Company Board approves or recommends,
or authorizes the Company to enter into an agreement with respect to, an
Alternative Proposal;

                  (iv) by the Company, if the Company determines in good faith
that it is reasonably likely that the conditions set forth in Sections 8.2(d),
(e), (f) or (g) or Sections 8.3(a), (d), (e), (f), (g), (i) or (j) or Sections
8.4(d), (e), (f), or (g) will not be satisfied;

                  (v) by the Company (A) at any time in connection with
entering into a definitive agreement with respect to an Alternative Proposal at
a time when, immediately prior to such termination, Section 7.5(a) was not in
effect, (B) pursuant to Section 3.4(c)(ii) or (C) pursuant to Section
3.4(c)(iv);

                  (vi) by Parent, pursuant to Section 3.4(c)(iv); or

                  (vii) by the Company, (A) pursuant to the last sentence of
Section 3.4(e) or (B) on ten business days notice, if the Company determines in
good faith that it is reasonably likely that the condition set forth in Section
8.3(h) will not be satisfied.

         9.2      Termination Fee; Effects of Termination.

                  (a) If at a time that 7.5(a) is in effect (i) a bona fide
Alternative Proposal shall have been made directly to the stockholders of the
Company generally or shall have otherwise become publicly known or any Person
shall have publicly announced an intention (whether or not conditional) to make
an Alternative Proposal and thereafter this Agreement is terminated pursuant to
Section 9.1(ii)(D) or (ii) this Agreement is terminated by Liberty pursuant to
Section 9.1(iii), then the Company shall promptly, but in no event later than
the date of such termination, pay Liberty a fee of $50 million (the
"Termination Fee"), payable by wire transfer of same day funds; provided,
however, that no Termination Fee shall be payable to Liberty in connection with
a termination of this Agreement as described in clause (i) of this Section
9.2(a) or in connection with a termination by Liberty pursuant to Section
9.1(iii) unless and until within six months after any such termination the
Company enters into any definitive agreement with respect to, or consummates, a
transaction pursuant to an Alternative Proposal (for the purposes of the
foregoing proviso and the next succeeding sentence only, the term "Alternative
Proposal" shall have the meaning assigned to such term in Section 7.5(a) except
that the references to "25% in the definition of "Alternative Proposal"



                                      72
<PAGE>

in Section 7.5(a) shall be deemed to be references to "50%"). Notwithstanding
the foregoing, (x) if an Alternative Proposal shall have been made as described
in clause (i) of this Section 9.2(a) and shall thereafter have been publicly
unconditionally withdrawn by the maker thereof prior to the event giving rise
to the termination of this Agreement referred to in clause (i) of this Section
9.2(a), no Termination Fee shall be payable by the Company to Liberty unless
the Company enters into any definitive agreement with respect to, or
consummates, any Alternative Proposal with the same maker or any of it
Affiliates within the period of time set forth in the proviso to the
immediately preceding sentence and (y) no Termination Fee shall be payable
pursuant to this clause (a) in connection with any definitive agreement
providing for, or the consummation of, an Alternative Transaction if such
definitive agreement was entered into at a time that Section 7.5(a) was not in
effect.

                  (b) If a Termination Fee becomes payable pursuant to Section
9.2(a), the Company will promptly take any actions necessary to cause all
shares of Class B Liberty Group Stock beneficially owned by the Company and its
Subsidiaries to be converted into shares of Class A Liberty Group Stock in
accordance with the terms of such securities.

                  (c) If this Agreement is terminated by the Company in
accordance with the last sentence of Section 3.4(e) as a result of a Liberty
Impeding Transaction or an agreement with respect thereto, then Liberty shall
pay to the Company on the date of such termination a fee of $50 million,
payable by wire transfer of same day funds.

                  (d) If this Agreement is terminated by the Company in
accordance with Section 9.1(iv) or 9.1(v) and prior to or within six months
following such termination the Company enters into a contract, agreement,
arrangement or understanding with respect to an Alternative Proposal and the
transaction contemplated by such Alternative Proposal (or any other Alternative
Proposal involving the same party or parties) is thereafter consummated, the
Company shall pay to Liberty on the date of the consummation of such
transaction a fee of $10 million, payable by wire transfer of same day funds.

                  (e) In the event of any termination of this Agreement by the
Company, Parent or Liberty pursuant to Section 9.1, this Agreement forthwith
shall become void and there shall be no liability or obligation on the part of
Parent, Merger Sub, Liberty, the Company or their respective affiliates,
stockholders, directors, officers, agents or representatives except (i) as
provided in Sections 7.2, 7.6, this Section 9.2 and Section 10.10, which shall
survive such termination; and (ii) that, subject to Section 10.10, termination
of this Agreement shall not relieve a party from liability for any breach of
this Agreement prior to such termination.

                                      73
<PAGE>



                                   ARTICLE X

                                 MISCELLANEOUS

         10.1 No Waiver or Survival of Representations and Warranties. The
respective representations and warranties of Parent, Merger Sub, Liberty and
the Company contained herein or in any certificate or other instrument
delivered pursuant hereto prior to or at the Closing shall not be deemed waived
or otherwise affected by any investigation made by any party hereto. All
representations and warranties made by each of the parties herein shall expire
at the Effective Time and shall thereafter be of no further force or effect.

         10.2 Notices. All notices, requests, demands, waivers and other
communications required or permitted to be given under this Agreement shall be
in writing and shall be deemed to have been duly given if delivered personally
or mailed, certified or registered mail with postage prepaid, or sent by
telegram or confirmed telex or telecopier, as follows:

                  (a)    If to Parent or Merger Sub:

                         AT&T Corp.
                         295 North Maple Avenue
                         Basking Ridge, NJ 07920
                         Attention: Vice President-Law and Corporate Secretary
                         Facsimile: (908) 221-6618

                         with a copy to:

                         Wachtell, Lipton, Rosen & Katz
                         51 W. 52nd Street
                         New York, NY 10019
                         Attention: David Silk, Esq.
                         Facsimile: (212) 403-2000

                  (b)    If to Liberty:

                         Liberty Media Corporation
                         9197 South Peoria Street
                         Englewood, CO 80112
                         Attention: Charles Y. Tanabe, Esq.
                         Facsimile: (720) 875-5382




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<PAGE>





                         with a copy to:

                         Baker & Botts, L.L.P.
                         599 Lexington Ave.
                         New York, NY 10022
                         Attention: John L. Graham, Esq.
                         Facsimile: (212) 705-5125

                  (c)    If to the Company:

                         The Associated Group, Inc.
                         Three Bala Plaza East
                         Suite 502
                         Bala Cynwyd, PA  19004
                         Attention: Scott G. Bruce, Esq.
                         Facsimile:  (610) 660-4920

                         with a copy to:

                         Skadden, Arps, Slate, Meagher & Flom LLP
                         One Beacon Street
                         Boston, MA  02108
                         Attention: Kent A. Coit, Esq.
                         Facsimile:  (617) 573-4822

                         and to:

                         Dechert Price & Rhoads
                         1717 Arch Street
                         Philadelphia, PA 19103
                         Attention: Barton J. Winokur, Esq.
                         Facsimile: (215) 994-2222

or to such other Person or address as any party shall specify by notice in
writing to the other party. All such notices, requests, demands, waivers and
communications shall be deemed to have been received on the date of delivery or
on the third business day after the mailing thereof, except that any notice of
a change of address shall be effective only upon actual receipt thereof.

         10.3 Entire Agreement. This Agreement (including the Schedules,
Annexes, Exhibits and other documents referred to herein) and, solely with
respect to certain matters affecting only Parent, Liberty and Merger Sub, the
Inter-Group Agreement and the Tax Sharing Agreement, constitute the entire
agreement between the parties and supersedes all prior agreements and
understandings, oral and written, between the parties with respect to the
subject matter hereof.



                                      75
<PAGE>





         10.4 Assignment; Binding Effect; Benefit. Neither this Agreement nor
any of the rights, benefits or obligations hereunder may be assigned by any
party (whether by operation of law or otherwise) without the prior written
consent of the other party. Subject to the preceding sentence, this Agreement
will be binding upon, inure to the benefit of and be enforceable by, the
parties and their respective successors and permitted assigns. Except for the
provisions of Section 3.6(a) (which may be enforced by the persons entitled to
the applicable cash payments) and Section 7.12 (which may be enforced by any
Indemnified Party referred to therein), nothing in this Agreement, expressed or
implied, is intended to confer on any person other than the parties or their
respective successors and permitted assigns, any rights, remedies, obligations
or liabilities under or by reason of this Agreement. Notwithstanding anything
to the contrary contained in this Agreement, the provisions of Section 7.12 (or
of this sentence of Section 10.4) may not be amended or altered in any manner
with respect to any Indemnified Party without the prior written consent of such
Indemnified Party.

         10.5 Amendment. This Agreement may be amended by action of all the
parties, by action taken or authorized by their respective Boards of Directors,
at any time before or after approval and adoption of this Agreement and the
Merger by the stockholders of the Company, but, after any such approval by the
stockholders of the Company, no amendment shall be made which by law requires
further approval by such stockholders of the Company without such further
approval. This Agreement may not be amended except by an instrument in writing
signed on behalf of each of the parties. Notwithstanding the foregoing, (a) the
provisions of Sections 7.4 (other than Sections 7.4(c)(i), 7.4(h)(i),
7.4(h)(ii), 7.4(h)(iii) or 7.4(i)) and 7.5 may be amended by an instrument
signed in writing by the Company and Liberty, without any action on the part of
Parent or Merger Sub and (b) following the Effective Time, the provisions of
Sections 3.11 and 7.15 (including Exhibit 7.15), and this sentence of Section
10.5 may only be amended by an instrument signed in writing by Parent, Liberty
and, on behalf of the Company, by at least one individual who was serving on
the board of directors of the Company immediately prior to the Effective Time.

         10.6 Extension; Waiver. At any time prior to the Effective Time, the
parties, by action taken or authorized by each such party's Board of Directors,
may, to the extent legally allowed, (i) extend the time specified herein for
the performance of any of the obligations of the other party, (ii) waive any
inaccuracies in the representations and warranties of the other party contained
herein or in any document delivered pursuant hereto, (iii) waive compliance by
the other party with any of the agreements or covenants of such other party
contained herein or (iv) waive any condition to such waiving party's obligation
to consummate the transactions contemplated hereby or to any of such waiving
party's other obligations hereunder. Any agreement on the part of a party
hereto to any such extension or waiver shall be valid only if set forth in a
written instrument signed on behalf of such party. Any such extension or waiver
shall be valid only if set forth in a written instrument signed on behalf of
such party. Any such extension or waiver by any party shall be binding on such
party but not on the other party entitled to the benefits of the provision of
this Agreement affected unless such other party also has agreed to such
extension or waiver. No such waiver shall constitute a waiver of, or estoppel
with respect to, any subsequent or other breach or failure to strictly comply
with the provisions of this Agreement. The failure of any party to insist on
strict compliance with this Agreement or to assert any of its rights or
remedies hereunder or with respect hereto shall not


                                      76
<PAGE>



constitute a waiver of such rights or remedies. Whenever this Agreement
requires or permits consent or approval by any party, such consent or approval
shall be effective if given in writing in a manner consistent with the
requirements for a waiver of compliance as set forth in this Section 10.6. Any
waiver by either Parent or Liberty shall require the consent of both Parent and
Liberty. Notwithstanding the foregoing, the provisions of Sections 7.4 (other
than Sections 7.4(c)(i), 7.4(h)(i), 7.4(h)(ii), 7.4(h)(iii) or 7.4(i)) and 7.5
may be waived by an instrument signed in writing by the Company and Liberty
without any action on the part of Parent or Merger Sub. In addition, following
the Effective Time, the provisions of Sections 3.11 and 7.15, (including
Exhibit 7.15) may only be waived by an instrument signed in writing by Parent,
Liberty and, on behalf of the Company, by at least one individual who was
serving on the board of directors of the Company immediately prior to the
Effective Time.

         10.7 Headings. The table of contents and headings contained in this
Agreement are for reference purposes only and shall not affect in any way the
meaning or interpretation of this Agreement. The phrase "made available" in
this Agreement shall mean that the information referred to has been made
available if requested by the party to whom such information is to be made
available.

         10.8 Counterparts. This Agreement may be executed in counterparts,
each of which shall be deemed to be an original, and all of which together
shall be deemed to be one and the same instrument.

         10.9 Applicable Law. This Agreement and the legal relations between
the parties hereunder shall be governed by and construed in accordance with the
laws of the State of Delaware, without regard to the conflict of laws rules
thereof.

         10.10 No Remedy in Certain Circumstances. Each party agrees that,
should any court or other competent governmental authority hold any provision
of this Agreement or part hereof to be null, void or unenforceable, or order
any party to take any action inconsistent herewith or not to take any action
required herein, the other party shall not be entitled to specific performance
of such provision or part hereof or to any other remedy, including but not
limited to money damages, for breach thereof or of any other provision of this
Agreement or part hereof as a result of such holding or order. Notwithstanding
any other provision of this Agreement or any other document executed in
connection herewith, the Company shall have no liability to Parent or Merger
Sub hereunder in respect of any representation, warranty, covenant, agreement
or any other obligation of the Company set forth herein, other than with
respect to the agreements and covenants set forth in Sections 3.2, 3.3, 3.4,
3.6, 3.7, 3.9, 7.1, 7.2, 7.3, 7.4(c)(i), 7.4(h)(i), 7.4(h)(ii), 7.4(h)(iii),
7.4(i), 7.6, 7.9, 7.13, 7.14, and 7.15.

         10.11 Enforcement. The parties agree that irreparable damage would
occur in the event that any of the provisions of this Agreement were not
performed in accordance with their specific terms or were otherwise breached.
It is accordingly agreed that the parties shall be entitled to seek an
injunction or injunctions to prevent breaches of this Agreement and to enforce
specifically the


                                      77
<PAGE>


terms and provisions of this Agreement in any court of the United States or in
Delaware state court, this being in addition to any other remedy to which they
are entitled at law or in equity. In addition, each of the parties hereto (a)
consents to submit itself to the non-exclusive jurisdiction of any Federal
court located in the State of Delaware or any Delaware state court in the event
any dispute arises out of this Agreement or any of the transactions
contemplated by this Agreement, and (b) agrees that it will not attempt to deny
or defeat such personal jurisdiction by motion or other request for leave from
any such court.

         10.12 Disclosure Schedule. The parties acknowledge that the Company
Disclosure Schedule to this Agreement (i) relates to certain matters concerning
the disclosures required and transactions contemplated by this Agreement, (ii)
is qualified in its entirety by reference to specific provisions of this
Agreement and (iii) is not intended to constitute and shall not be construed as
indicating that such matter is required to be disclosed, nor shall such
disclosure be construed as an admission that such information is material with
respect to the Company, or any of its Subsidiaries or to Teligent or any of its
Subsidiaries or will have or is likely to have a Material Adverse Effect, a
Teligent Material Adverse Effect, a Transaction Adverse Effect, a Teligent
Interest Material Adverse Effect or a Parent Adverse Effect. Disclosure of the
information contained in one section or part of the Company Disclosure Schedule
shall be deemed as proper disclosure for other sections or parts of the Company
Disclosure Schedule only if appropriately cross-referenced or if the relevance
thereof is reasonably apparent from the context in which it appears, provided
that information in the Company Disclosure Schedule shall be deemed to qualify
the representations in Sections 4.1, 4.2, 4.3 and 4.17 only if such information
is set forth in, or cross-referenced into, the applicable item or subsection of
Sections 4.1, 4.2, 4.3 or 4.17 (as appropriate) of the Company Disclosure
Schedule (except that information disclosed in Section 4.4(e) of the Company
Disclosure Schedule may be cross-referenced into Section 4.3(4) of the Company
Disclosure Schedule).




                                      78
<PAGE>







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

                                   AT&T CORP.


                                     By: /s/ Daniel E. Somers
                                        -------------------------------------
                                             Name:  Daniel E. Somers
                                             Title: Senior Executive Vice
                                                    President and CFO


                                     THE ASSOCIATED GROUP, INC.


                                     By: /s/ Myles P. Berkman
                                        -------------------------------------
                                             Name:  Myles P. Berkman
                                             Title: Chairman, President
                                                    Chief Executive Officer and
                                                    Treasurer


                                     LIBERTY MEDIA CORPORATION


                                     By: /s/ Gary S. Howard
                                        -------------------------------------
                                             Name:  Gary S. Howard
                                             Title: Executive Vice President
                                                    and Chief Operating Officer


                                     A-GROUP MERGER CORP.


                                     By: /s/ Daniel E. Somers
                                        -------------------------------------
                                             Name:  Daniel E. Somers
                                             Title:








<PAGE>


                       AMENDMENT NO. 2 TO RIGHTS AGREEMENT

                  This AMENDMENT NO. 2 TO RIGHTS AGREEMENT (this "Amendment") is
being entered into as of May 28, 1999 between The Associated Group, Inc., a
Delaware corporation (the "Company"), and ChaseMellon Shareholder Services,
L.L.C. (successor to Mellon Bank, N.A.) as rights agent (the "Rights Agent").

                  The Company and the Rights Agent are parties to a Rights
Agreement dated as of December 14, 1994, as heretofore amended by an Amendment
No. 1 thereto dated as of March 17, 1999 (as so amended, the "Rights
Agreement").

                  It is proposed that the Company enter into an Agreement and
Plan of Merger (the "Merger Agreement") by and among the Company, AT&T Corp., a
New York corporation (the "Parent"), Liberty Media Corporation, a Delaware
corporation ("Liberty"), and A-Group Merger Corp., a Delaware corporation and a
wholly owned subsidiary of Parent (the "Merger Subsidiary"), pursuant to which
the Merger Subsidiary will merge with and into the Company (the "Merger"), and
that Parent, Liberty and certain stockholders of the Company enter into a Voting
Agreement (the "Voting Agreement"), pursuant to which such stockholders agree to
vote certain of their shares of Common Stock of the Company in the manner
provided in the Voting Agreement.

                  Pursuant to Section 26 of the Rights Agreement, the Company
and the Rights Agent may supplement or amend the Rights Agreement in accordance
with the provisions of Section 26 thereof. The Company now desires to amend the
Rights Agreement as set forth in this Amendment and deems such amendments to be
necessary and desirable. Capitalized terms used but not defined herein shall
have the meanings ascribed to such terms in the Rights Agreement.

                  NOW, THEREFORE, in consideration of the premises and the
mutual agreement herein set forth, the parties hereby agree as follows:

                  1.   AMENDMENT OF SECTION 1(a). Section 1(a) of the Rights
Agreement is hereby amended to add the following sentence at the end thereof:

                  "Notwithstanding anything in this Rights Agreement to the
                  contrary, none of AT&T, Liberty or any of their existing or
                  future Affiliates or Associates shall be deemed to be an
                  Acquiring Person solely


<PAGE>

                  by virtue of (i) the execution of the Merger Agreement or the
                  Voting Agreement, (ii) the acquisition of Common Stock or
                  other capital stock of the Company pursuant to the Merger
                  Agreement or the consummation of the Merger, (iii) the
                  consummation of the other transactions contemplated by the
                  Merger Agreement or the Voting Agreement, (iv) the acquisition
                  of beneficial ownership (which acquisition is in addition to
                  and not pursuant to or in contemplation of the agreements or
                  events referred to in the preceding clauses (i) through (iii))
                  by AT&T or its Affiliates or Associates (excluding Liberty and
                  its Affiliates and Associates) of not more than an additional
                  10.0% of the total number of shares of Company Common Stock
                  outstanding immediately prior to the Amendment No. 2 Effective
                  Time, (v) the acquisition of beneficial ownership (which
                  acquisition is in addition to and not pursuant to or in
                  contemplation of the agreements or events referred to in the
                  preceding clauses (i) through (iii)) by Liberty or its
                  Affiliates or Associates (excluding AT&T and its Affiliates
                  and Associates) of not more than an additional 4.9% of the
                  total number of shares of Company Common Stock outstanding
                  immediately prior to the Amendment No. 2 Effective Time or
                  (vi) any combination of the foregoing."

                  2.   AMENDMENT OF SECTION 1(d).  Section 1(d) of the Rights
Agreement is hereby amended to add the following sentence at the end thereof:

                  "Notwithstanding anything in this Rights Agreement to the
                  contrary, none of AT&T, Liberty or any of their existing or
                  future Affiliates or Associates shall be deemed to be an
                  Adverse Person solely by virtue of (i) the execution of the
                  Merger Agreement or the Voting Agreement, (ii) the
                  acquisition of Common Stock or other capital stock of the
                  Company pursuant to the Merger Agreement or the consummation
                  of the Merger, (iii) the consummation of the other
                  transactions contemplated by the Merger Agreement or the
                  Voting Agreement, (iv) the acquisition of beneficial ownership
                  (which acquisition is in addition to and not pursuant to or
                  in contemplation of the agreements or events referred to in
                  the preceding clauses (i) through (iii)) by AT&T or its
                  Affiliates or Associates (excluding Liberty and its Affiliates
                  and Associates) of not more than an additional 10.0% of the
                  total number of shares of

                                        2
<PAGE>

                  Company Common Stock outstanding immediately prior to the
                  Amendment No. 2 Effective Time, (v) the acquisition of
                  beneficial ownership (which acquisition is in addition to and
                  not pursuant to or in contemplation of the agreements or
                  events referred to in the preceding clauses (i) through (iii))
                  by Liberty or its Affiliates or Associates (excluding AT&T and
                  its Affiliates and Associates) of not more than an additional
                  4.9% of the total number of shares of Company Common Stock
                  outstanding immediately prior to the Amendment No. 2 Effective
                  Time or (vi) any combination of the foregoing."

                  3.   AMENDMENT OF SECTION 1(e).  Section 1(e) of the Rights
Agreement is hereby amended to add the following sentence at the end thereof:

                  "Notwithstanding anything in this Rights Agreement to the
                  contrary, an Adverse Person Event shall not be deemed to have
                  occurred solely by virtue of (i) the execution of the Merger
                  Agreement or the Voting Agreement, (ii) the acquisition of
                  Common Stock or other capital stock of the Company pursuant
                  to the Merger Agreement or the consummation of the Merger,
                  (iii) the consummation of the other transactions contemplated
                  by the Merger Agreement or the Voting Agreement, (iv) the
                  acquisition of beneficial ownership (which acquisition is in
                  addition to and not pursuant to or in contemplation of the
                  agreements or events referred to in the preceding clauses (i)
                  through (iii)) by AT&T or its Affiliates or Associates
                  (excluding Liberty and its Affiliates and Associates) of not
                  more than an additional 10.0% of the total number of shares of
                  Company Common Stock outstanding immediately prior to the
                  Amendment No. 2 Effective Time, (v) the acquisition of
                  beneficial ownership (which acquisition is in addition to and
                  not pursuant to or in contemplation of the agreements or
                  events referred to in the preceding clauses (i) through (iii))
                  by Liberty or its Affiliates or Associates (excluding AT&T and
                  its Affiliates and Associates) of not more than an additional
                  4.9% of the total number of shares of Company Common Stock
                  outstanding immediately prior to the Amendment No. 2
                  Effective Time or (vi) any combination of the foregoing."

                                        3

<PAGE>

                  4.   AMENDMENT OF SECTION 1(ww).  Section 1(ww) of the Rights
Agreement is hereby amended to add the following proviso at the end thereof:

                  "; provided, however, that no Triggering Event shall result
                  solely by virtue of (i) the execution of the Merger Agreement
                  or the Voting Agreement, (ii) the acquisition of Common Stock
                  or other capital stock of the Company pursuant to the Merger
                  Agreement or the consummation of the Merger, (iii) the
                  consummation of the other transactions contemplated by the
                  Merger Agreement or the Voting Agreement, (iv) the acquisition
                  of beneficial ownership (which acquisition is in addition to
                  and not pursuant to or in contemplation of the agreements or
                  events referred to in the preceding clauses (i) through (iii))
                  by AT&T or its Affiliates or Associates (excluding Liberty and
                  its Affiliates and Associates) of not more than an additional
                  10.0% of the total number of shares of Company Common Stock
                  outstanding immediately prior to the Amendment No. 2
                  Effective Time, (v) the acquisition of beneficial ownership
                  (which acquisition is in addition to and not pursuant to or in
                  contemplation of the agreements or events referred to in the
                  preceding clauses (i) through (iii)) by Liberty or its
                  Affiliates or Associates (excluding AT&T and its Affiliates
                  and Associates) of not more than an additional 4.9% of the
                  total number of shares of Company Common Stock outstanding
                  immediately prior to the Amendment No. 2 Effective Time or
                  (vi) any combination of the foregoing."

                  5.   AMENDMENT OF SECTION 1. Section 1 of the Rights Agreement
is hereby further amended to add the following subparagraphs at the end thereof:

                           (xx)  "Amendment No. 2" shall mean the Amendment
                  No. 2 to Rights Agreement dated May 28, 1999, by and between
                  the Company and the Rights Agent.

                           (yy)  "Amendment No. 2 Effective Time" shall mean the
                  date and time the Amendment No. 2 is fully executed.

                           (zz)  "AT&T" shall mean AT&T Corp., a New York
                  corporation.

                           (aaa)  "Liberty" shall mean Liberty Media
                  Corporation, a Delaware corporation.

                                        4

<PAGE>

                           (bbb)  "Merger" shall have the meaning set forth in
                  the Merger Agreement.

                           (ccc) "Merger Agreement" shall have the meaning set
                  forth in Section 35 hereof.

                           (ddd) "Merger Agreement Termination Time" shall mean
                  the later of (i) the date and time of termination of the
                  Merger Agreement or (ii) the date and time of termination of
                  the Voting Agreement.

                           (eee) "Merger Subsidiary" shall have the meaning set
                  forth in Section 35 hereof.

                           (fff)  "Voting Agreement" shall mean the Voting
                  Agreement of even date with the Amendment No. 2, to be entered
                  into following the Amendment No. 2 Effective Time, by and
                  between AT&T, Liberty and the stockholders of the Company
                  listed as parties thereto.

                  6.   AMENDMENT OF SECTION 3(a).  Section 3(a) of the Rights
Agreement is hereby amended to add the following sentence at the end thereof:

                  "Notwithstanding anything in this Rights Agreement to the
                  contrary, a Distribution Date shall not be deemed to have
                  occurred solely by virtue of (i) the execution of the Merger
                  Agreement or the Voting Agreement, (ii) the acquisition of
                  Common Stock or other capital stock of the Company pursuant
                  to the Merger Agreement or the consummation of the Merger,
                  (iii) the consummation of the other transactions contemplated
                  by the Merger Agreement or the Voting Agreement, (iv) the
                  acquisition of beneficial ownership (which acquisition is in
                  addition to and not pursuant to or in contemplation of the
                  agreements or events referred to in the preceding clauses (i)
                  through (iii)) by AT&T or its Affiliates or Associates
                  (excluding Liberty and its Affiliates and Associates) of not
                  more than an additional 10.0% of the total number of shares of
                  Company Common Stock outstanding immediately prior to the
                  Amendment No. 2 Effective Time, (v) the acquisition of
                  beneficial ownership (which acquisition is in addition to and
                  not pursuant to or in contemplation of the agreements or
                  events referred to in the preceding clauses (i) through (iii))
                  by Liberty or its Affiliates or Associates (excluding AT&T and
                  its Affiliates and Associates)

                                        5

<PAGE>

                  of not more than an additional 4.9% of the total number of
                  shares of Company Common Stock outstanding immediately prior
                  to the Amendment No. 2 Effective Time or (vi) any combination
                  of the foregoing."

                  7.   AMENDMENT OF SECTION 7(a). Section 7(a) of the Rights
 Agreement is amended to add the following sentence at the end thereof:

                  "Notwithstanding anything in this Rights Agreement to the
                  contrary, none of (i) the execution of the Merger Agreement or
                  the Voting Agreement, (ii) the acquisition of Common Stock or
                  other capital stock of the Company pursuant to the Merger
                  Agreement or the consummation of the Merger, (iii) the
                  consummation of the other transactions contemplated by the
                  Merger Agreement or the Voting Agreement, (iv) the acquisition
                  of beneficial ownership (which acquisition is in addition to
                  and not pursuant to or in contemplation of the agreements or
                  events referred to in the preceding clauses (i) through (iii))
                  by AT&T or its Affiliates or Associates (excluding Liberty and
                  its Affiliates and Associates) of not more than an additional
                  10.0% of the total number of shares of Company Common Stock
                  outstanding immediately prior to the Amendment No. 2 Effective
                  Time, (v) the acquisition of beneficial ownership (which
                  acquisition is in addition to and not pursuant to or in
                  contemplation of the agreements or events referred to in the
                  preceding clauses (i) through (iii)) by Liberty or its
                  Affiliates or Associates (excluding AT&T and its Affiliates
                  and Associates) of not more than an additional 4.9% of the
                  total number of shares of Company Common Stock outstanding
                  immediately prior to the Amendment No. 2 Effective Time or
                  (vi) any combination of the foregoing, shall constitute an
                  event that would cause the Rights to become exercisable
                  pursuant to the provisions of this Section 7 or otherwise."

                  8.   AMENDMENT OF SECTION 11. Section 11 of the Rights
Agreement is amended to add the following sentence after the first sentence of
said Section:

                  "Notwithstanding anything in this Rights Agreement to the
                  contrary, none of (i) the execution of the Merger Agreement or
                  the Voting Agreement, (ii) the acquisition of Common Stock or
                  other capital stock of the Company pursuant to the Merger
                  Agreement or the consummation of the Merger, (iii) the


                                       6
<PAGE>

                  consummation of the other transactions contemplated by the
                  Merger Agreement or the Voting Agreement, (iv) the acquisition
                  of beneficial ownership (which acquisition is in addition to
                  and not pursuant to or in contemplation of the agreements or
                  events referred to in the preceding clauses (i) through (iii))
                  by AT&T or its Affiliates or Associates (excluding Liberty
                  and its Affiliates and Associates) of not more than an
                  additional 10.0% of the total number of shares of Company
                  Common Stock outstanding immediately prior to the Amendment
                  No. 2 Effective Time, (v) the acquisition of beneficial
                  ownership (which acquisition is in addition to and not
                  pursuant to or in contemplation of the agreements or events
                  referred to in the preceding clauses (i) through (iii)) by
                  Liberty or its Affiliates or Associates (excluding AT&T and
                  its Affiliates and Associates) of not more than an additional
                  4.9% of the total number of shares of Company Common Stock
                  outstanding immediately prior to the Amendment No. 2 Effective
                  Time or (vi) any combination of the foregoing, shall
                  constitute an event of the type described in this Section 11,
                  including without limitation, a Section 11(a)(ii) Event, or be
                  deemed to cause the Rights to be adjusted or to become
                  exercisable in accordance with this Section 11 or otherwise."

                  9.   AMENDMENT OF SECTION 13(d).  Section 13(d) of the Rights
Agreement is amended to add the following sentence at the end thereof:

                  "Notwithstanding anything in this Rights Agreement to the
                  contrary, none of (i) the execution of the Merger Agreement or
                  the Voting Agreement, (ii) the acquisition of Common Stock or
                  other capital stock of the Company pursuant to the Merger
                  Agreement or the consummation of the Merger, (iii) the
                  consummation of the other transactions contemplated by the
                  Merger Agreement or the Voting Agreement, (iv) the acquisition
                  of beneficial ownership (which acquisition is in addition to
                  and not pursuant to or in contemplation of the agreements or
                  events referred to in the preceding clauses (i) through (iii))
                  by AT&T or its Affiliates or Associates (excluding Liberty and
                  its Affiliates and Associates) of not more than an additional
                  10.0% of the total number of shares of Company Common Stock
                  outstanding immediately prior to the Amendment No. 2 Effective
                  Time, (v) the acquisition of beneficial ownership (which

                                        7


<PAGE>

                  acquisition is in addition to and not pursuant to or in
                  contemplation of the agreements or events referred to in the
                  preceding clauses (i) through (iii)) by Liberty or its
                  Affiliates or Associates (excluding AT&T and its Affiliates
                  and Associates) of not more than an additional 4.9% of the
                  total number of shares of Company Common Stock outstanding
                  immediately prior to the Amendment No. 2 Effective Time or
                  (vi) any combination of the foregoing, shall constitute an
                  event of the type described in this Section 13, including
                  without limitation, a Section 13 Event, or be deemed to cause
                  the Rights to be adjusted or to become exercisable in
                  accordance with this Section 13 or otherwise."

                  10.  ADDITION OF SECTION 35. The Rights Agreement is hereby
modified, supplemented and amended to add the following new Section 35:

                  "Section 35.  Merger With A-Group Merger Corp.

                           The Company, AT&T, Liberty and A-Group Merger Corp.,
                  a Delaware corporation and a wholly owned subsidiary of AT&T
                  ("Merger Subsidiary"), intend to enter into an Agreement and
                  Plan of Merger, of even date with the Amendment No. 2, to be
                  entered into following the Amendment No. 2 Effective Time (as
                  it may be amended from time to time, the "Merger Agreement"),
                  pursuant to which Merger Subsidiary shall merge with and into
                  the Company. Notwithstanding anything in this Rights Agreement
                  to the contrary, automatically upon the Merger Agreement
                  Termination Time (a) the last sentence of Section 1(a); (b)
                  the last sentence of Section 1(d); (c) the last sentence of
                  Section 1(e); (d) the proviso at the end of Section 1(ww); (e)
                  Sections 1(xx) through 1(fff); (f) the last sentence of
                  Section 3(a); (g) the last sentence of Section 7(a); (h) the
                  second sentence of Section 11; and (i) the last sentence of
                  Section 13(d) of this Agreement shall be deemed repealed and
                  deleted without any further action on the part of the Company
                  or the Rights Agent; provided, however, that any such repeal
                  or deletion shall not impair or invalidate the effectiveness
                  of any of the aforementioned provisions mentioned in the
                  preceding clauses (a) through (i) of this Section 35 from and
                  including the Amendment No. 2 Effective Time through and
                  including the Merger Agreement Termination Time. The Company
                  shall promptly notify the Rights Agent of the Merger


                                       8
<PAGE>

                  Agreement Termination Time and, until it receives such
                  written notification of such Merger Agreement Termination
                  Time, the Rights Agent shall incur no liability and shall be
                  fully protected in assuming the continued existence and
                  effectiveness of the Merger Agreement and the Voting
                  Agreement."

                  11. EFFECTIVENESS. This Amendment shall be deemed effective as
of the date first written above, as if executed on such date. Except as amended
hereby, the Rights Agreement shall remain in full force and effect and shall be
otherwise unaffected hereby.

                  12. MISCELLANEOUS. This Amendment shall be deemed to be a
contract made under the laws of the State of Delaware and for all purposes shall
be governed by and construed in accordance with the laws of the State of
Delaware applicable to contracts to be made and performed entirely within the
State of Delaware without giving effect to the principles of conflict of laws
thereof. This Amendment may be executed in any number of counterparts, each of
such counterparts shall for all purposes be deemed to be an original and all
such counterparts shall together constitute but one and the same instrument. If
any provision, covenant or restriction of this Agreement is held by a court of
competent jurisdiction or other authority to be invalid, illegal or
unenforceable, the remainder of the terms, provisions, covenants and
restrictions of this Amendment shall remain in full force and effect and shall
in no way be affected, impaired or invalidated.


                                       9
<PAGE>

                  IN WITNESS WHEREOF, this Amendment has been duly executed by
the Company and the Rights Agent as of the day and year first written above.

Attest:                                     THE ASSOCIATED GROUP, INC.


                                            By: /s/ Scott G. Bruce
- --------------------                           --------------------------
                                               Name:  Scott G. Bruce
                                               Title: Vice President and
                                                        General Counsel

Attest:                                     CHASEMELLON SHAREHOLDER SERVICES,

                                            L.L.C., as Rights Agent

                                            By: /s/ Anita Landreau
- --------------------                           -------------------------
                                               Name:  Anita Landreau
                                               Title: Assistant Vice President





<PAGE>


FOR IMMEDIATE RELEASE                                                  CONTACTS:
JUNE 1, 1999                                                         Vivian Carr
                                                             Liberty Media Group
                                                                    720/875-5406

                                                                  Scott G. Bruce
                                                      The Associated Group, Inc.
                                                                    610/660-4910


                  LIBERTY MEDIA TO ACQUIRE ASSOCIATED GROUP

          NEW YORK and ENGLEWOOD, Colo. - Liberty Media Group (NYSE:LMG.A and
LMG.B) and The Associated Group, Inc. (Nasdaq: AGRPA and AGRPB) announced today
that they have signed a definitive merger agreement pursuant to which Liberty
will acquire the business of Associated in an all-stock transaction valued
(including assumption of debt) at approximately $3 billion, based on current
prices. The transaction is structured to be tax-free to Associated
shareholders. Under the agreement, Associated shareholders will receive an
aggregate of 25,889,460 shares of Class A Liberty Media Group Common Stock
(51,778,920 shares following the distribution on or about June 11, 1999 of
shares effecting Liberty's recently declared two-for-one stock split), subject
to adjustment, and an aggregate of 19,719,274 shares of AT&T Corp. Common Stock,
or 0.6206 shares (1.2411 shares post split) of Class A Liberty Media Group
Common Stock and 0.4727 shares of AT&T Common Stock, for each share of
Associated Class A and Class B Common Stock, based upon the fully-diluted number
of shares of Associated Common Stock of 41,719,198. The AT&T Common Stock issued
in the transaction corresponds to an equal number of AT&T common shares held by
Associated that AT&T will receive and then retire.

          The estimated value of the transaction to Associated shareholders
reflects the assumption by Liberty Media Group of $187 million of Associated
debt. That debt threshold will be subject to increase over time depending upon
when the transaction is consummated. If the debt threshold is exceeded, the
number of Liberty Media Group shares issuable will be reduced.

         Myles P. Berkman, Chairman and CEO of Associated, stated that the
transaction "is the culmination of twenty years of value creation for our
shareholders, first as Associated Communications Corporation and later as The
Associated Group."

<PAGE>

         "The Associated transaction is a unique opportunity for Liberty," said
Robert Bennett, President and CEO of Liberty. "It allows us to obtain an
attractive investment in the very exciting and rapidly growing business of
Teligent. In addition, Associated has been a pioneer in the development and
commercialization of wireless location systems."

         The transaction was designed to be financially neutral to holders of
AT&T Common Stock and will not result in a net increase in the number of
outstanding shares of AT&T Common Stock. The net number of outstanding shares of
Class A Liberty Media Group Common Stock will be increased by approximately 23
million shares, after giving effect to the recently declared stock split.

         The transaction is subject to the approval of the stockholders of
Associated and approvals of various governmental authorities, including the
Federal Communications Commission and state regulatory agencies. Depending upon
the foregoing approvals, the transaction is expected to be completed in early
2000.

         Associated owns and operates interests in a diversified group of
communications-related businesses. Associated co-founded, and holds an
approximate 41% interest in, Teligent, Inc. (NASDAQ: TGNT), a premier provider
of broadband communications services -- local, long distance and Internet
access -- to small and medium-sized business customers in major markets
throughout the U.S. Other assets include TruePosition, Inc., a wholly-owned
subsidiary of Associated, with a patented wireless location system in the early
stages of commercialization, an interest in a Mexican cellular telephone
company, ownership of radio broadcasting properties and a portfolio of
marketable equity securities, primarily comprised of shares of Liberty Media and
AT&T Common Stock. Associated Class A and Class B Common Stock are traded on the
NASDAQ Stock Market under the symbols AGRPA and AGRPB, respectively.

         Liberty Media Group holds interests in a broad range of video
programming, communications, technology and Internet businesses in the United
States, Europe, South America and Asia. Liberty Media Group Class A and Class B
Common Stock are tracking stocks of AT&T Corp. and are traded on the New York
Stock Exchange under the symbols LMG.A and LMG.B, respectively.



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