Document:

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                                 FIRST AMENDMENT
                                       TO
                      AGREEMENT, DATED SEPTEMBER 13, 1999,
                                  BY AND AMONG
                        ADS ALLIANCE DATA SYSTEMS, INC.,
                       PEGASUS SATELLITE TELEVISION, INC.,
                                       AND
                        DIGITAL TELEVISION SERVICES, INC.

         This First Amendment ("First Amendment") to the agreement, dated
September 13, 1999 (the "Agreement"), by and among ADS Alliance Data Systems,
Inc. ("Alliance"), Pegasus Satellite Television, Inc. ("PST") and Digital
Television Services, Inc. ("DTS" and together with PST, the "Customer") is dated
as of December 30, 1999.

                                    RECITALS

         WHEREAS, Alliance and Customer entered into the Agreement on September
13, 1999;

         WHEREAS, Section 1.2 (Procedures/Reporting) of the Agreement provides
for the establishment of certain policies, procedures and standard reporting
concerning call center activities, performance, escalation and recovery no later
than December 31, 1999;

         WHEREAS, Section 5 (Performance/Call Forecasting) of the Agreement
provides for Alliance and Customer to mutually agree upon certain performance
targets, a call forecasting process, and a methodology to allocate call volume
no later than December 31, 1999; and

         WHEREAS, Alliance and Customer desire to amend the Agreement with this
First Amendment to reflect their mutual agreement as to the items to be agreed
upon pursuant to Section 1.2 and Section 5 of the Agreement.

         NOW THEREFORE, for good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, the Parties agree as follows:

         1. Unless otherwise defined in this First Amendment, including the
            attachment hereto, capitalized terms used but not otherwise defined
            herein shall have the meaning set forth in the Agreement.

         2. Section 1.2 of the Agreement is hereby amended in its entirety to
            read as follows: "1.2 Procedures/Reporting. The Parties will follow
            the policies, procedures, and standard reporting concerning call
            center activities, performance, escalation and recovery procedures
            set forth on Exhibit C to this Agreement."

         3. Section 5 of the Agreement is hereby amended in its entirety to read
            as follows: "5. PERFORMANCE/CALL FORECASTING. Prior to January 1,
            2000 (or such later date they may be mutually agreed upon in writing
            by Alliance and Customer), Alliance will use commercially reasonable

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            efforts to answer eighty-five percent (85%) of calls offered within
            30 seconds and to maintain an abandon rate of less than or equal to
            ten percent (10%). Beginning on January 1, 2000 (or such later date
            as agreed upon above), the customer care performance targets set
            forth in Exhibit C to this Agreement shall become effective."

         4. The following sentence from Section 7.1 of the Agreement shall be
            deleted in its entirety: "In addition, if the Customer and Alliance
            cannot mutually agree, prior to the applicable deadlines set forth
            in this Agreement or any mutually agreed upon extension of those
            deadlines, upon (i) the procedures and reporting policies pursuant
            to Section 1.2 or (ii) pursuant to Section 5, performance targets, a
            call forecasting process and a method to allocate call volume,
            Customer shall have the right to terminate this Agreement, without
            penalty (notwithstanding any other provision of this Agreement),
            upon forty-five (45) days' notice to Alliance."

         5. The Agreement is amended by the addition of an Exhibit C as set
            forth in Attachment 1 to this First Amendment.

         6. In all other respects, the Agreement remains unchanged.

         IN WITNESS WHEREOF, the Parties have caused this First Amendment to be
execute by and through their duly authorized representatives.

                            PEGASUS SATELLITE TELEVISION, INC.

                            By: /s/ Howard E. Verlin
                                    ------------------------
                                    Name: Howard E. Verlin
                                    Title: Vice President

                            DIGITAL TELEVISION SERVICES, INC.

                            By: /s/ Howard E. Verlin
                                    ------------------------
                                    Name: Howard E. Verlin
                                    Title: Vice President

                            ADS ALLIANCE DATA SYSTEMS, INC.

                            By: /s/ Richard J. Jerrier
                                    ------------------------
                                    Name: Richard J. Jerrier
                                    Title:   Director

                                      -2-
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                                  ATTACHMENT 1

                                    EXHIBIT C
                        CUSTOMER CARE PERFORMANCE TARGETS

[omitted and filed separately with the Commission]

                                    Exhibit C
                                  Attachment 1

[omitted and filed separately with the Commission]

                                      -3-<PAGE>

         AMENDMENT NO. 1, dated January 24, 2000, and effective as provided
below, to Class B Preferred Unit Subscription Agreement dated as of January 10,
2000 (the "Subscription Agreement"), between PERSONALIZED MEDIA COMMUNICATIONS,
L.L.C. ("PMC") and PEGASUS DEVELOPMENT CORPORATION (the "Subscriber"), and to
Series PMC Warrant Agreement dated as of January 13, 2000 (the "Warrant
Agreement"), between PMC and PEGASUS COMMUNICATIONS CORPORATION ("Pegasus").

         IN CONSIDERATION OF the mutual covenants contained herein, and for
other good and valuable consideration the receipt of which is hereby
acknowledged, and intending to be legally bound, the parties agree as follows.

         1. Section 2.2 of the Subscription Agreement is amended by striking out
"At the Closing" and inserting in its place "At the Closing, or as otherwise
provided in Section 2.4".

         2. Section 2.3 of the Subscription Agreement is amended (a) by striking
out "and Warrants" from the caption and (b) by striking out "and the Warrants"
at the end thereof.

         3. The Subscription Agreement is amended by adding the following new
section immediately after Section 2.3:

                  "2.4 Issuance of Warrants. The Subscriber shall cause Pegasus
         to execute and deliver a warrant agreement (the "Warrant Agreement") as
         provided in Section 6.6. The Subscriber shall cause Pegasus to issue to
         the Company the Warrants provided for in the Warrant Agreement, and to
         execute and deliver the Warrant Certificate(s) evidencing the Warrants
         as contemplated by the Warrant Agreement, on the first to occur of:

                          "(a) three business days after the stockholders of
                  Pegasus shall have approved the issuance of the Warrants, or

                          "(b) three business days after the occurrence of any
                  event that causes the approval of the stockholders of Pegasus
                  not to be required under the rules of the Nasdaq Stock Market.

         "If no event described in clause (a) or (b) shall have occurred on or
         before July 1, 2000, the transactions contemplated by this Agreement
         and the other documents delivered pursuant to this Agreement shall be
         rescinded; provided, however, that in no event shall the Company be
         required to reimburse the Subscriber for the Stock or the cash in the
         amount of $14,250,000 payable at the Closing."

         4. Section 6.6 of the Subscription Agreement is amended by striking out
"by the Subscriber" and replacing it with "by Pegasus".

         5. Section 1 of the Warrant Agreement is amended by (a) striking out
"On the date hereof" and replacing it with "On the date specified in Section 2.4
of the Subscription

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Agreement", (b) striking out "hereby issues" and replacing it with "will issue",
and (c) striking out "hereby acquires" and replacing it with "will acquire".

         6. The first paragraph of Section 6 of the Warrant Agreement is amended
by striking out "from (and including) the date of this Agreement" and replacing
it with "from (and including) the date of issuance of each such Warrant".

         7. The amendments effected by paragraphs 1 through 4 are effective
January 10, 2000. The amendments effected by paragraphs 5 and 6 are effective
January 13, 2000. The warrant certificate dated January 13, 2000, shall be
deemed not to have been issued and shall be returned to Pegasus promptly after
the execution of this Amendment. Except as expressly amended by this Amendment,
the Subscription Agreement, the Warrant Agreements and the other agreements
referred to therein or executed and delivered pursuant thereto remain in full
force and effect in accordance with their terms.

         IN WITNESS WHEREOF, the parties hereto have executed this Agreement the
date first written above, effective the dates specified in paragraph 7.

                                    PERSONALIZED MEDIA COMMUNICATIONS, L.L.C.

                                    By:  /s/ John C. Harvey
                                       ----------------------------
                                             John C. Harvey,
                                             Managing Member

                                    PEGASUS DEVELOPMENT CORPORATION

                                    By:  /s/ Ted S. Lodge
                                       ----------------------------
                                             Ted S. Lodge,
                                             Senior Vice President

                                    PEGASUS COMMUNICATIONS CORPORATION

                                    By:  /s/ Ted S. Lodge
                                       ----------------------------
                                             Ted S. Lodge,
                                             Senior Vice President

                                      -2-
<PAGE>

                   JOINDER BY CERTAIN SHAREHOLDERS OF PEGASUS

The undersigned (a) represent and warrant to Personalized Media Communications,
L.L.C. that the shares of Class B Common Stock of Pegasus held by them carry
sufficient voting power to approve the issuance of the Warrants if stockholder
approval is sought, without the need to obtain the vote of any other
stockholder; and (b) agree to vote all their shares of Class B Common Stock in
favor of the issuance of the Warrants at a meeting of stockholders of Pegasus to
be held not later than June 30, 2000, unless prior to that time an event occurs
that makes stockholder approval not required under the rules of the Nasdaq Stock
Market.

                                    PEGASUS COMMUNICATIONS HOLDINGS, INC.

                                    By:  /s/ Ted S. Lodge
                                       ----------------------------
                                             Ted S. Lodge,
                                             Senior Vice President

                                    PEGASUS CAPITAL, LTD., general partner

                                    By:  /s/ Ted S. Lodge
                                       ----------------------------
                                             Ted S. Lodge,
                                             Senior Vice President

                                      -3-

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