ADELPHIA COMMUNICATIONS CORP
S-4/A, 1994-03-24
CABLE & OTHER PAY TELEVISION SERVICES
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<PAGE>
 
     
  AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MARCH 24, 1994     
                                                     
                                                  REGISTRATION NO. 33-52513     
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
 
                                 ------------
                                 
                              AMENDMENT NO. 1     
                                       
                                    TO     
                                    FORM S-4
                            REGISTRATION STATEMENT
                                     UNDER
                          THE SECURITIES ACT OF 1933
 
                                 ------------

                      ADELPHIA COMMUNICATIONS CORPORATION
             (Exact name of registrant as specified in its charter)
 
          DELAWARE                       4841                    23-2417713
(State or other jurisdiction (Primary Standard Industrial     (I.R.S. Employer
     of incorporation or      Classification Code Number)    Identification No.)
        organization)             
 
                       5 WEST THIRD STREET--P.O. BOX 472
                        COUDERSPORT, PENNSYLVANIA 16915
                                (814) 274-9830
  (Address, including zip code, and telephone number, including area code, of
                   registrant's principal executive offices)
 
                             COLIN HIGGIN, ESQUIRE
                            DEPUTY GENERAL COUNSEL
                      ADELPHIA COMMUNICATIONS CORPORATION
                       5 WEST THIRD STREET--P.O. BOX 472
                        COUDERSPORT, PENNSYLVANIA 16915
                                (814) 274-9830
 (Name, address, including zip code, and telephone number, including area code,
                             of agent for service)
 
                                 ------------
 
                PLEASE ADDRESS A COPY OF ALL COMMUNICATIONS TO:
 
                      CARL E. ROTHENBERGER, JR., ESQUIRE
                  BUCHANAN INGERSOLL PROFESSIONAL CORPORATION
                         58TH FLOOR, 600 GRANT STREET
                        PITTSBURGH, PENNSYLVANIA 15219
                                (412) 562-8826
 
                                 ------------
 
    APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO PUBLIC: AS SOON AS
        PRACTICABLE AFTER THE REGISTRATION STATEMENT BECOMES EFFECTIVE.
 
  If the Securities being registered on this Form are being offered in
connection with the formation of a holding company and there is compliance with
General Instruction G, check the following box.[_]
 
                                 ------------
 
  The Registrant hereby amends this Registration Statement on such date or
dates as may be necessary to delay its effective date until the Registrant
shall file a further amendment which specifically states that this Registration
Statement shall thereafter become effective in accordance with Section 8(a) of
the Securities Act of 1933 or until the Registration Statement shall become
effective on such date as the Commission, acting pursuant to said Section 8(a),
may determine.
 
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
 
           ADELPHIA COMMUNICATIONS CORPORATION CROSS-REFERENCE SHEET
 
    CROSS-REFERENCE SHEET PURSUANT TO ITEM 501(B) OF REGULATION S-K SHOWING
      LOCATION IN PROSPECTUS OF INFORMATION REQUIRED BY ITEMS OF FORM S-4.
 
<TABLE>
<CAPTION>
               FORM S-4 ITEM NUMBER                          LOCATION IN PROSPECTUS
               --------------------                          ----------------------
 <C> <S>                                           <C>
 A.  INFORMATION ABOUT THE TRANSACTION
  1. Forepart of Registration Statement and        Outside Front Cover Page
      Outside Front Cover Page of Prospectus
  2. Inside Front and Outside Back Cover Pages     Inside Front Cover Page; Forepart; Outside
      of Prospectus                                 Back Cover Page
  3. Risk Factors, Ratio of Earnings to Fixed      Risk Factors; Selected Consolidated
      Charges and Other Information                 Financial Data; Prospectus Summary
  4. Terms of the Transaction                      Prospectus Summary; The Exchange Offer;
                                                    Capitalization; Description of New Notes;
                                                    Certain United States Income Tax
                                                    Considerations; Plan of Distribution
  5. Pro Forma Financial Information               Inapplicable
  6. Material Contacts with the Company being      Inapplicable
      Acquired
  7. Additional Information Required For           Plan of Distribution
      Reoffering by Persons and Parties Deemed
      to be Underwriters
  8. Interests of Named Experts and Counsel        Experts
  9. Disclosure of Commission Position on          Inapplicable
      Indemnification for Securities Act
      Liabilities
 B.  INFORMATION ABOUT THE REGISTRANT
 10. Information with Respect to S-3 Registrants   Incorporation of Certain Documents
                                                    by Reference; Risk Factors; Recent
                                                    Developments; Selected Consolidated
                                                    Financial Data
 11. Incorporation of Certain Information by       Incorporation of Certain Documents
      Reference                                     by Reference
 12. Information with Respect to S-2 or S-3        Inapplicable
      Registrants
 13. Incorporation of Certain Information by       Inapplicable
      Reference
 14. Information with Respect to Registrants       Inapplicable
      other than S-3 or S-2 Registrants
 C.  INFORMATION ABOUT THE COMPANY BEING
      ACQUIRED
 15. Information with Respect to S-3 Companies     Inapplicable
 16. Information with Respect to S-2 or S-3        Inapplicable
      Companies
 17. Information with Respect to Companies other   Inapplicable
      than S-2 or S-3 Companies
 D.  VOTING AND MANAGEMENT INFORMATION
 18. Information if Proxies, Consents or           Inapplicable
      Authorizations are to be Solicited
 19. Information if Proxies, Consents or           Inside Front Cover Page
      Authorizations are not to be Solicited or
      in an Exchange Offer
</TABLE>
<PAGE>
 
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT. A         +
+REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE   +
+SECURITIES AND EXCHANGE COMMISSION. THESE SECURITIES MAY NOT BE SOLD NOR MAY  +
+OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT        +
+BECOMES EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR   +
+THE SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE      +
+SECURITIES IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE    +
+UNLAWFUL PRIOR TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF  +
+ANY SUCH STATE.                                                               +
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
                   
PROSPECTUS      SUBJECT TO COMPLETION, DATED MARCH 24, 1994     
 
                      ADELPHIA COMMUNICATIONS CORPORATION
 
[LOGO OF ADELPHIA
 COMMUNICATIONS CORP.]
                             OFFER TO EXCHANGE ITS
 
              9 1/2% SENIOR PAY-IN-KIND NOTES DUE 2004, SERIES B
             WHICH HAVE BEEN REGISTERED UNDER THE SECURITIES ACT
                      FOR ANY AND ALL OF ITS OUTSTANDING
              9 1/2% SENIOR PAY-IN-KIND NOTES DUE 2004, SERIES A
                                  ------------
 
       THE EXCHANGE OFFER WILL EXPIRE AT 5:00 P.M., NEW YORK CITY TIME,
                      ON       , 1994, UNLESS EXTENDED.
                                  ------------
 
  Adelphia Communications Corporation, a Delaware corporation ("Adelphia"),
hereby offers upon the terms and subject to the conditions set forth in this
Prospectus and the accompanying Letter of Transmittal (the "Letter of
Transmittal") (which together constitute the "Exchange Offer"), to exchange its
9 1/2% Senior Pay-In-Kind Notes due 2004, Series B (the "New Notes") for an
equal principal amount of its outstanding 9 1/2% Senior Pay-In-Kind Notes due
2004, Series A (the "Old Notes"), of which an aggregate of $150,000,000 in
principal amount is outstanding as of the date hereof. The form and terms of
the New Notes will be substantially the same as the form and terms of the Old
Notes except that the New Notes will be registered under the Securities Act of
1933, as amended (the "Securities Act") and hence will not bear legends
restricting the transfer thereof. The New Notes will evidence the same debt as
the Old Notes and will be entitled to the benefits of the same Indenture, dated
as of February 22, 1994 by and between Adelphia and The Bank of Montreal Trust
Company, as trustee (the "Indenture"). See "Description of New Notes." The New
Notes and the Old Notes are sometimes referred to herein collectively as the
"Notes."
 
  Adelphia will accept for exchange any and all validly tendered Old Notes on
or prior to 5:00 p.m., New York City time, on      , 1994 (if and as extended,
the "Expiration Date"). Tenders of Old Notes may be withdrawn at any time prior
to 5:00 p.m., New York City time, on the Expiration Date. The Exchange Offer is
not conditioned upon any minimum principal amount of Old Notes being tendered
for exchange. See "The Exchange Offer."
 
  The New Notes will bear interest at a rate of 9 1/2% per annum from their
date of issuance. Interest on the New Notes will be payable semi-annually on
February 15 and August 15 of each year, commencing on August 15, 1994. Accrued
interest on the Old Notes that are accepted for exchange will be paid, on the
date of the first interest payment on the New Notes (August 15, 1994), to the
holders of the New Notes as of the first record date for the payment of
interest on the New Notes (August 1, 1994). Interest on the Old Notes accepted
for exchange will cease to accrue upon issuance of the New Notes. See
"Description of New Notes."
                                                        (Continued on next page)
                                  ------------
   
  SEE "RISK FACTORS" FOR A DISCUSSION OF CERTAIN FACTORS WHICH INVESTORS SHOULD
CONSIDER IN CONNECTION WITH THIS EXCHANGE OFFER AND AN INVESTMENT IN THE NEW
NOTES.     
 
  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS
A CRIMINAL OFFENSE.
 
                  THE DATE OF THIS PROSPECTUS IS       , 1994.
<PAGE>
 
   
  Based upon no-action letters issued by the staff of the Securities and
Exchange Commission (the "Commission") to third parties, Adelphia believes that
the New Notes issued pursuant to the Exchange Offer in exchange for the Old
Notes may be offered for resale, resold and otherwise transferred by holders
thereof (other than any such holder that is an "affiliate" of Adelphia within
the meaning of Rule 405 under the Securities Act) without compliance with the
registration and prospectus delivery provisions of the Securities Act provided
that such New Notes are acquired in the ordinary course of such holders'
business and such holders have no arrangement with any person to participate 
in the distribution of such New Notes. Holders of Old Notes wishing to accept 
the Exchange Offer must represent to Adelphia that such conditions have
been met. Each broker-dealer that receives New Notes for its own account
pursuant to the Exchange Offer must acknowledge that it will deliver a
prospectus in connection with any resale of such New Notes. The Letter of
Transmittal states that by so acknowledging and by delivering a prospectus, a
broker-dealer will not be deemed to admit that it is an "underwriter" within
the meaning of the Securities Act. This Prospectus, as it may be amended or
supplemented from time to time, may be used by a broker-dealer in connection
with resales of New Notes received in exchange for Old Notes where such Old
Notes were acquired by such broker-dealer as a result of market-making
activities or other trading activities. Adelphia has agreed that, until the
earlier of 180 days after the Expiration Date or December 31, 1994, it will
make this Prospectus available to any broker-dealer for use in connection with
any such resale. See "Plan of Distribution."     
  
  Prior to this Exchange Offer, there has been no public market for the Notes.
Adelphia does not intend to list the New Notes on any securities exchange. Any
Old Notes not tendered will remain outstanding. There can be no assurance that
an active market for the Old Notes or New Notes will develop. To the extent
that a market for the New Notes does develop, the market value of the New Notes
will depend on market conditions (such as yields on alternative investments),
general economic conditions, Adelphia's financial condition and other
conditions. Such conditions might cause the New Notes, to the extent that they
are actively traded, to trade at a discount from face value. See "Risk
Factors--Absence of Public Market."
   
  Adelphia will not receive any cash proceeds from this Exchange Offer.
Adelphia has agreed to bear the expenses of this Exchange Offer. No underwriter
is being used in connection with this Exchange Offer.     
 
  THE EXCHANGE OFFER IS NOT BEING MADE TO, NOR WILL ADELPHIA ACCEPT SURRENDERS
FOR EXCHANGE FROM, HOLDERS OF OLD NOTES IN ANY JURISDICTION IN WHICH THE
EXCHANGE OFFER OR THE ACCEPTANCE THEREOF WOULD NOT BE IN COMPLIANCE WITH THE
SECURITIES LAWS OF SUCH JURISDICTION.
    
    
<PAGE>
 
  NO PERSON IS AUTHORIZED IN CONNECTION WITH ANY OFFERING MADE HEREBY TO GIVE
ANY INFORMATION OR TO MAKE ANY REPRESENTATION NOT CONTAINED IN THIS PROSPECTUS
OR THE ACCOMPANYING LETTER OF TRANSMITTAL, AND, IF GIVEN OR MADE, SUCH
INFORMATION OR REPRESENTATION MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED
BY THE COMPANY. NEITHER THIS PROSPECTUS NOR THE ACCOMPANYING LETTER OF
TRANSMITTAL NOR BOTH TOGETHER CONSTITUTE AN OFFER TO SELL OR A SOLICITATION OF
AN OFFER TO BUY ANY SECURITY OTHER THAN THE NEW NOTES OFFERED HEREBY, NOR DOES
IT CONSTITUTE AN OFFER TO SELL OR A SOLICITATION OF AN OFFER TO BUY ANY OF THE
SECURITIES OFFERED HEREBY TO ANY PERSON IN ANY JURISDICTION IN WHICH IT IS
UNLAWFUL TO MAKE ANY SUCH OFFER OR SOLICITATION TO SUCH PERSON. NEITHER THE
DELIVERY OF THIS PROSPECTUS NOR THE ACCOMPANYING LETTER OF TRANSMITTAL NOR BOTH
TOGETHER NOR ANY SALE MADE HEREBY SHALL UNDER ANY CIRCUMSTANCES IMPLY THAT THE
INFORMATION CONTAINED HEREIN IS CORRECT AS OF ANY DATE SUBSEQUENT TO THE DATE
HEREOF.
 
                             AVAILABLE INFORMATION
   
  Adelphia is subject to the informational requirements of the Securities
Exchange Act of 1934, as amended (the "Exchange Act"), and, in accordance
therewith, files reports, proxy statements and other information with the
Commission. Such reports, proxy statements and other information may be
inspected and copied at the Public Reference Section of the Commission at Room
1024, Judiciary Plaza, 450 Fifth Street, N.W., Washington, D.C. 20549, and at
the Commission's regional offices at Northwestern Atrium Center, 500 West
Madison Street, Chicago, Illinois 60661-2511, and Seven World Trade Center,
13th Floor, New York, New York 10048. Copies of such reports, proxy statements
and other information can be obtained from the Public Reference Section of the
Commission at 450 Fifth Street, N.W., Washington, D.C. 20549, at prescribed
rates.     
 
  Adelphia has filed with the Commission a Registration Statement under the
Securities Act with respect to the securities offered by this Prospectus. As
permitted by the rules and regulations of the Commission, this Prospectus does
not contain all of the information set forth in the Registration Statement. For
further information about Adelphia and the securities offered hereby, reference
is made to the Registration Statement and to the financial statements, exhibits
and schedules filed therewith. The statements contained in this Prospectus
about the contents of any contract or other document are not necessarily
complete, and in each instance reference is made to the copy of each such
contract or other document filed as an exhibit to the Registration Statement,
each such statement being qualified in all respects by such reference. Copies
of the Registration Statement and the exhibits and schedules thereto may be
inspected without charge and copied at prescribed rates at the public reference
facilities maintained by the Commission at Room 1024, Judiciary Plaza, 450
Fifth Street, N.W., Washington, D.C., 20549.
 
                INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE
 
  Adelphia hereby incorporates by reference into this Prospectus the following
documents or information filed with the Commission: (a) Adelphia's Annual
Report on Form 10-K for the fiscal year ended March 31, 1993 (the "Form 10-K");
(b) Adelphia's Quarterly Report on Form 10-Q for the fiscal quarter ended June
30, 1993; (c) Adelphia's Quarterly Report on Form 10-Q for the fiscal quarter
ended September 30, 1993; (d) Adelphia's Quarterly Report on Form 10-Q for the
fiscal quarter ended December 31, 1993 (the "December Form 10-Q"); (e)
Adelphia's Current Reports on Form 8-K filed September 3, 1993 and January 18,
1994; and (f) Adelphia's Proxy Statement dated August 23, 1993.
 
 
                                       3
<PAGE>
 
  All documents filed by Adelphia pursuant to Section 13(a), 13(c), 14 or 15(d)
of the Exchange Act on or after the date of this Prospectus and prior to the
termination of the offering made hereby shall be deemed to be incorporated by
reference in this Prospectus and to be a part hereof from the date of filing of
such documents.
 
  Any statement contained herein or in any documents incorporated or deemed to
be incorporated by reference herein shall be deemed to be modified or
superseded for the purpose of this Prospectus to the extent that a subsequent
statement contained herein or in any subsequently filed document which also is
or is deemed to be incorporated by reference herein modifies or supersedes such
statement. Any such statement shall not be deemed, except as so modified or
superseded, to constitute a part of this Prospectus.
 
  THIS PROSPECTUS INCORPORATES DOCUMENTS BY REFERENCE WHICH ARE NOT PRESENTED
HEREIN OR DELIVERED HEREWITH. THESE DOCUMENTS (OTHER THAN EXHIBITS UNLESS SUCH
EXHIBITS ARE SPECIFICALLY INCORPORATED BY REFERENCE INTO SUCH DOCUMENTS) ARE
AVAILABLE WITHOUT CHARGE UPON WRITTEN OR ORAL REQUEST FROM MICHAEL C. MULCAHEY,
DIRECTOR OF INVESTOR RELATIONS OF ADELPHIA AT ADELPHIA'S PRINCIPAL EXECUTIVE
OFFICE LOCATED AT 5 WEST THIRD STREET, COUDERSPORT, PENNSYLVANIA 16915,
TELEPHONE NUMBER (814) 274-9830. IN ORDER TO ENSURE TIMELY DELIVERY OF SUCH
DOCUMENTS, ANY REQUEST SHOULD BE MADE BY        , 1994.
 
  As used herein, the term "Consolidated Financial Statements" refers to
consolidated financial statements and the notes thereto incorporated by
reference from the Form 10-K, and the term "Management's Discussion and
Analysis" refers to Management's Discussion and Analysis of Financial Condition
and Results of Operations incorporated by reference from the Form 10-K and the
Forms 10-Q for the quarters ended December 31, 1993, September 30, 1993 and
June 30, 1993, as applicable, except to the extent updated by any filing made
subsequent to the date thereof.
 
                                       4
<PAGE>
 
                               PROSPECTUS SUMMARY
 
  The following information is qualified in its entirety by the more detailed
information and financial statements appearing elsewhere in this Prospectus or
incorporated by reference herein. Prospective investors should carefully
consider the factors set forth herein under the caption "Risk Factors."
 
                                  THE COMPANY
 
  Adelphia Communications Corporation ("Adelphia" and, collectively with its
subsidiaries, the "Company") is one of the largest cable television operators
in the United States. As of December 31, 1993, cable television systems owned
or managed by the Company (the "Systems") served 1,294,230 basic subscribers.
John J. Rigas, the Chairman, President, Chief Executive Officer and founder of
Adelphia, has owned and operated cable television systems since 1952.
 
  The Company's wholly-owned cable systems (the "Company Systems") are located
in eight states and are organized into seven regional clusters: Western New
York, Virginia, Western Pennsylvania, New England, Eastern Pennsylvania, Ohio
and Coastal New Jersey. The Company Systems are located primarily within the 50
largest television markets. As of December 31, 1993, the Company Systems passed
1,131,979 homes and served 831,880 basic subscribers.
 
  The Company owns a 50% voting interest and nonvoting preferred limited
partnership interests entitling the Company to a 16.5% priority return in
Olympus Communications, L.P. ("Olympus"). Olympus is a joint venture which owns
cable systems (the "Olympus Systems") primarily located in some of the fastest
growing areas of Florida. The Olympus Systems in Florida form a substantial
part of an eighth regional cluster, Southeastern Florida. The Company is the
managing general partner of Olympus and receives a fee for providing management
services. As of December 31, 1993, the Olympus Systems passed 453,901 homes and
served 269,726 basic subscribers.
 
  The Company also provides, for a fee, management and consulting services to
certain partnerships (the "Managed Partnerships"). John J. Rigas and certain
members of his immediate family, including entities they own or control
(collectively, the "Rigas Family"), control or have substantial ownership
interests in the Managed Partnerships. As of December 31, 1993, cable systems
owned by the Managed Partnerships (the "Managed Systems") passed 265,618 homes
and served 192,624 basic subscribers.
 
  The Company's strategy has been to provide superior customer service while
maximizing operating cash flow. By clustering its systems in geographic
proximity, the Company has been able to realize significant operating
efficiencies through the consolidation of many managerial, administrative and
technical functions while maintaining a strong community presence in its
service areas. At December 31, 1993, approximately 642,000, or 50%, of the
Systems' basic subscribers were served from only ten headends and approximately
1,027,000, or 80%, of such subscribers were served from only 27 headends. In
addition, approximately 65% of the Systems' basic subscribers were served by
systems serving more than 50,000 subscribers while, nationwide, only 39% were
served by systems as large. Over 99% of the subscribers to the Company Systems
are served by systems with "addressable capable" technology.
 
  Since April 1, 1988, the Company has invested more than $375,000,000 to
modernize and expand the Company Systems. In particular, the Company has
replaced approximately 18% of the total installed trunk cable for the Systems
with fiber optic cable. In addition, the Company has installed over 400 miles
of fiber optic plant for point-to-point applications such as connecting or
eliminating headends or microwave link sites. Through the use of fiber optic
cable and other technological improvements, the Company has increased system
reliability, channel capacity and its ability to deliver advanced cable
television services. These improvements have enhanced customer service, reduced
operating expenses and allowed the Company to introduce additional services,
such as impulse-ordered pay-per-view programming, which expand customer
 
                                       5
<PAGE>
 
choices and increase Company revenues. The Company believes that the
installation of fiber optic cable plant will better position the Company to
deliver new or enhanced services in the future.
 
  Management believes that the telecommunications industry, including the cable
television and telephone industries, is in a period of consolidation
characterized by mergers, joint ventures, acquisitions, sales of all or part of
cable companies or their assets, and other partnering and investment
transactions of various structures and sizes involving cable or other
telecommunications companies. The Company continues to evaluate new
opportunities that allow for expansion of its business through the acquisition
of additional cable television systems in geographic proximity to its existing
regional markets or in locations that can serve as a basis for new market
areas. Management also believes that the Company is well positioned to
participate in this consolidation trend due to its well-clustered cable
systems, the quality of its cable plant, its management strengths and its
relationships within the cable industry. The Company, like other cable
television companies, has participated from time to time and is participating
in preliminary discussions with third parties regarding a variety of potential
transactions, and the Company has considered and expects to continue to
consider and explore potential transactions of various types with other cable
and telecommunications companies. However, the Company has not reached any
agreements, in principal or otherwise, with respect to any material transaction
and no assurances can be given as to whether any such transaction may be
consummated or, if so, when.
 
  Adelphia was incorporated in Delaware on July 1, 1986 for the purpose of
reorganizing five cable television companies, then principally owned by the
Rigas Family, into a holding company structure in connection with the initial
public offering of Adelphia's Class A Common Stock and its 13% Senior
Subordinated Notes due 1996 ("Senior Subordinated Notes"). The Company's
executive offices are located at 5 West Third Street, Coudersport, Pennsylvania
16915, and its telephone number is (814) 274-9830.
 
                               THE EXCHANGE OFFER
 
<TABLE>
<S>                              <C>
The Exchange Offer.............  A principal amount of New Notes in exchange for an equal
                                 principal amount of Old Notes. As of the date hereof,
                                 $150,000,000 in aggregate principal amount of Old Notes
                                 were outstanding. Adelphia will issue the New Notes
                                 promptly after the Expiration Date.
 
                                 Based on no-action letters issued by the staff of the
                                 Commission to third parties, Adelphia believes that the
                                 New Notes issued pursuant to the Exchange Offer in
                                 exchange for Old Notes may be offered for resale, resold
                                 and otherwise transferred by holders thereof (other than
                                 any such holder that is an "affiliate" of Adelphia within
                                 the meaning of Rule 405 under the Securities Act) without
                                 compliance with the registration and prospectus delivery
                                 provisions of the Securities Act, provided that such New
                                 Notes are acquired in the ordinary course of such
                                 holders' business and such holders have no arrangement
                                 with any person to participate in the distribution of
                                 such New Notes. Each broker-dealer that receives New
                                 Notes for its own account pursuant to the Exchange Offer
                                 must acknowledge that it will deliver a prospectus in
                                 connection with any resale of such New Notes. This
                                 Prospectus, as it may be amended or supplemented from
                                 time to time, may be used by a broker-dealer in
                                 connection with resales of the New Notes received in
                                 exchange for Old Notes where such Old Notes were acquired
                                 by such broker-dealer as a result of market-making
                                 activities or other trading activities. Adelphia has
                                 agreed that, until the earlier of 180 days after the
                                 Expiration Date or December 31, 1994, it will make this
                                 Prospectus available to any
</TABLE>
 
                                       6
<PAGE>
 
<TABLE>
 <S>                              <C>
                                  broker-dealer for use in connection with any such resale.
                                  See "The Exchange Offer--Purpose and Effect of the
                                  Exchange Offer" and "Plan of Distribution."
 
 Expiration Date................. 5:00 p.m., New York City time, on       , 1994, unless
                                  the Exchange Offer is extended, in which case "Expiration
                                  Date" means the latest date and time to which the
                                  Exchange Offer is extended. See "The Exchange Offer--
                                  Expiration Date; Extensions; Amendments."
 
 Interest on the New
  Notes and Old Notes............ The New Notes will bear interest at a rate of 9 1/2% per
                                  annum from their issuance date. Accrued interest on the
                                  Old Notes that are accepted for exchange will be paid, on
                                  the date of the first interest payment on the New Notes
                                  (August 15, 1994), to the holders of the New Notes as of
                                  the first record date for the payment of interest on the
                                  New Notes (August 1, 1994). Interest on the Old Notes
                                  accepted for exchange will cease to accrue upon
                                  cancellation of the Old Notes and issuance of the New
                                  Notes. Holders of Old Notes whose Old Notes are not
                                  exchanged will receive the accrued interest payable on
                                  August 15, 1994, on such date in accordance with the
                                  terms of the Indenture and thereafter interest on the Old
                                  Notes not accepted for exchange will continue to accrue
                                  in accordance with the terms of the Indenture. The
                                  interest rate on the Old Notes was 10% prior to the date
                                  of this Prospectus. From and including the date of this
                                  Prospectus, the Old Notes will accrue interest at a rate
                                  of 9 1/2% per annum. On or prior to February 15, 1999,
                                  interest on the Old Notes and New Notes may, at the
                                  Company's option, be paid in cash, through the issuance
                                  of additional Notes valued at 100% of their principal
                                  amount, or in any combination thereof. See "The Exchange
                                  Offer--Interest on the New Notes" and "Description of New
                                  Notes--Registration Rights Agreement."
 
 Conditions to the
  Exchange Offer................. The Exchange Offer is subject to certain customary
                                  conditions. The conditions generally are that the
                                  Exchange Offer does not violate applicable law or any
                                  applicable interpretation of the Commission. The Exchange
                                  Offer is not conditioned upon any minimum aggregate
                                  principal amount of Old Notes being tendered for
                                  exchange. See "The Exchange Offer--Conditions."
 
 Withdrawal Rights............... Tenders may be withdrawn at any time prior to 5:00 p.m.,
                                  New York City time on the Expiration Date. See "The
                                  Exchange Offer--Withdrawal of Tenders."
 
 Acceptance of Old Notes and
  Delivery of New Notes.......... Subject to certain conditions, Adelphia will accept for
                                  exchange any and all Old Notes which are properly
                                  tendered in the Exchange Offer prior to 5:00 p.m., New
                                  York City time, on the Expiration Date. The New Notes
                                  issued pursuant to the Exchange Offer will be delivered
                                  promptly following the Expiration Date. Any Old Notes not
                                  accepted for exchange will be returned without expense to
                                  the tendering holder thereof as promptly as practicable
                                  after the expiration or termination of the Exchange
                                  Offer. See "The Exchange Offer--Terms of the Exchange
                                  Offer."
 
 Certain Tax Considerations.....  For a discussion of certain United States income tax
                                  considerations relating to the exchange of New Notes for
                                  Old Notes, see "Certain United States Income Tax
                                  Considerations."
</TABLE>
 
                                       7
<PAGE>
 
<TABLE>
<S>                              <C>
Exchange Agent.................  The Bank of Montreal Trust Company, the Trustee under the
                                 Inden- ture, is serving as Exchange Agent in connection
                                 with the Exchange Offer.
 
Consequences to Non-Tendering
 Holders of Old Notes..........  Upon consummation of the Exchange Offer, the Company will
                                 have no further obligation to register the Old Notes
                                 under the Securities Act (other than those held by the
                                 Initial Purchaser). Holders of Old Notes who do not
                                 tender their Old Notes in the Exchange Offer or whose Old
                                 Notes are not accepted for exchange will continue to hold
                                 such Old Notes and will be entitled to all the rights and
                                 preferences and will be subject to the limitations
                                 applicable thereto under the Indenture, except for any
                                 such rights or limitations which, by their terms,
                                 terminate or cease to be effective as a result of the
                                 Exchange Offer. All untendered and tendered but
                                 unaccepted Old Notes will continue to be subject to the
                                 restrictions on transfer provided therein. To the extent
                                 that Old Notes are tendered and accepted in the Exchange
                                 Offer, the trading market for untendered and tendered but
                                 unaccepted Old Notes could be adversely affected. See
                                 "Risk Factors--Consequences to Non-Tendering Holders of
                                 Old Notes and Broker-Dealers."
</TABLE>
 
                               TERMS OF NEW NOTES
 
  The Exchange Offer applies to up to $150,000,000 aggregate principal amount
of Adelphia's Old Notes. The New Notes will be obligations of Adelphia
evidencing the same debt as the Old Notes and will be entitled to the benefits
of the Indenture. The form and terms of the New Notes are the same as the form
and terms of the Old Notes in all material respects except that the New Notes
have been registered under the Securities Act and hence do not include certain
transfer restrictions or certain rights to registration thereunder. See
"Description of New Notes."
 
<TABLE>
<S>                              <C>
Maturity Date..................  The New Notes will mature on February 15, 2004.
Interest Payment Dates.........  February 15 and August 15, commencing August 15, 1994.
Interest Payments..............  On or prior to February 15, 1999, all interest
                                 on the New Notes may, at the option of
                                 Adelphia, be paid in cash, through the issuance
                                 of additional New Notes valued at 100% of their
                                 principal amount, or in any combination
                                 thereof. The New Notes will bear cash interest
                                 from February 16, 1999 until maturity.
Optional Redemption............  The New Notes will be redeemable at the option
                                 of Adelphia, in whole or in part, at any time
                                 on or after February 15, 1999, initially at
                                 103.56% of their principal amount, plus accrued
                                 interest, and declining to 100.00% of such
                                 principal amount, plus accrued interest, on or
                                 after February 15, 2002. In addition, in the
                                 event of a sale by the Company prior to
                                 February 15, 1996 of at least $100 million of
                                 its capital stock (an "Equity Event") to a
                                 Strategic Equity Investor (as defined herein),
                                 up to 33 1/3% of the aggregate principal amount
                                 of Notes then outstanding may be redeemed, at
                                 the Company's option, from the net cash
                                 proceeds of the Equity Event at 109.50% of such
                                 principal amount, plus accrued interest, upon
                                 not less than 30 nor more than 60 days' prior
                                 written notice to holders given within 30 days
                                 after the Equity Event. See "Description of the
                                 New Notes--Optional Redemption."
</TABLE> 
                                       8
<PAGE>
<TABLE> 
<S>                         <C>
Ranking...................  The New Notes are unsecured indebtedness of
                            Adelphia ranking pari passu with other
                            unsubordinated indebtedness of Adelphia,
                            including Adelphia's $400,000,000 of 12 1/2%
                            Senior Notes due 2002 (the "12 1/2% Notes"),
                            Adelphia's $125,000,000 of 11 7/8% Senior
                            Debentures due 2004 (the "11 7/8% Debentures"),
                            Adelphia's $130,000,000 of 9 7/8% Senior
                            Debentures due 2005 (the "9 7/8% Debentures")
                            and Adelphia's $110,000,000 of 10 1/4% Senior
                            Notes due 2000 (the "10 1/4% Notes"), and
                            senior in right of payment to all existing and
                            future subordinated indebtedness of Adelphia.
                            The operations of Adelphia are conducted
                            through Adelphia's subsidiaries and, therefore,
                            Adelphia is dependent on the earnings and cash
                            flow of and distributions from its subsidiaries
                            to meet its debt obligations, including its
                            obligations with respect to the New Notes.
                            Because the assets of Adelphia's subsidiaries
                            constitute substantially all of the assets of
                            Adelphia, and because those subsidiaries will
                            not guarantee the payment of principal of and
                            interest on the New Notes, the claims of
                            holders of the New Notes effectively will be
                            subordinated to the claims of creditors of the
                            Company's subsidiaries. At December 31, 1993,
                            the total amount of long-term debt of
                            Adelphia's subsidiaries was $937,809,000. See
                            "Risk Factors--Holding Company Structure" and
                            "Description of the New Notes."
 
Certain Covenants.........
                            The New Notes will be issued under the
                            Indenture which imposes certain restrictions
                            on, among other things, the incurrence of
                            indebtedness, mergers and sales of assets,
                            change of control, the payment of dividends on
                            capital stock, and the repurchase of
                            subordinated debt of Adelphia. In addition, the
                            Indenture restricts certain other payments by
                            Adelphia and its subsidiaries and certain
                            transactions with, and investments in,
                            affiliates. The convenants are substantially
                            similar to those set forth in the indenture
                            pursuant to which Adelphia's 10 1/4% Notes were
                            issued.
 
Original Issue Discount...  For federal income tax purposes, each New Note
                            will be treated as having been issued with
                            original issue discount. See "Certain United
                            States Income Tax Considerations."
 
Exchange Rights...........  Holders of New Notes are not entitled to any
                            exchange rights with respect to the New Notes.
                            Holders of Old Notes are entitled to certain
                            exchange rights pursuant to the Registration
                            Rights Agreement. Under the Registration Rights
                            Agreement, Adelphia is required to use its best
                            efforts to offer to exchange the Old Notes for
                            new notes having substantially identical terms
                            which have been registered under the Securities
                            Act. This Exchange Offer is intended to satisfy
                            such obligation. Once the Exchange Offer is
                            consummated, Adelphia will have no further
                            obligations to register any of the Old Notes
                            not tendered by the holders thereof, other than
                            the initial purchaser of the Old Notes (the
                            "Initial Purchaser"), for exchange. See "Risk
                            Factors--Consequences to Non-Tendering Holders
                            of Old Notes and Broker-Dealers."
 
Use of Proceeds...........  Adelphia wil not receive any cash proceeds from
                            the Exchange Offer. See "Use of Proceeds."
</TABLE> 
                                       9
<PAGE>
 
SELECTED CONSOLIDATED FINANCIAL DATA (DOLLARS IN THOUSANDS EXCEPT PER SHARE AND
                              PER SUBSCRIBER DATA)
 
  The selected consolidated financial data as of and for each of the five years
in the period ended March 31, 1993 have been derived from the audited
consolidated financial statements of the Company. These data should be read in
conjunction with the Consolidated Financial Statements and related notes for
each of the three years in the period ended March 31, 1993, the Financial
Statements and related notes for the nine month period ended December 31, 1993
and "Management's Discussion and Analysis." The statement of operations data
with respect to fiscal years ending March 31, 1989 and 1990, and the balance
sheet data at March 31, 1989, 1990 and 1991, have been derived from audited
consolidated financial statements of the Company not included herein. Results
of operations for the South Dade Systems are reflected on a consolidated basis
up to the date of transfer (December 19, 1989) of such systems to Olympus. The
selected consolidated financial data with respect to the nine months ended
December 31, 1992 and 1993 are unaudited; however, in the opinion of
management, such data reflect all adjustments (consisting only of normal
recurring adjustments) necessary to fairly present the data for such interim
periods. Operating results for interim periods are not necessarily indicative
of the results that may be expected for a full year.
 
<TABLE>
<CAPTION>
                                                                                     NINE MONTHS ENDED
                                         YEAR ENDED MARCH 31,                          DECEMBER 31,
                          --------------------------------------------------------  --------------------
                            1989       1990         1991        1992       1993       1992       1993
<S>                       <C>        <C>          <C>        <C>         <C>        <C>        <C>
STATEMENT OF OPERATIONS
DATA:
Revenues................  $ 186,379  $ 228,643    $ 248,586  $  273,630  $ 305,222  $ 225,921  $ 239,865
Direct Operating and
 Programming............     52,966     63,381       66,007      74,787     82,377     61,110     67,370
Selling, General and
 Administrative.........     33,236     35,326       41,421      44,427     49,468     35,628     38,152
                          ---------  ---------    ---------  ----------  ---------  ---------  ---------
Operating Income before
 Depreciation
 and Amortization.......    100,177    129,936      141,158     154,416    173,377    129,183    134,343
Depreciation and
 Amortization...........    114,009    122,107(a)    79,427      84,817     90,406     66,145     67,516
                          ---------  ---------    ---------  ----------  ---------  ---------  ---------
Operating Income (Loss).    (13,832)     7,829       61,731      69,599     82,971     63,038     66,827
Interest Income from
 Affiliates.............      1,257        933        1,596       3,085      5,216      3,960      3,755
Other Income............        261        122        1,750         968      1,447      1,002        570
Priority Investment In-
 come (b)...............         --      9,797       19,175      22,300     22,300     16,725     16,725
Interest Expense........   (111,331)  (150,263)    (163,637)   (164,839)  (164,859)  (120,318)  (136,757)
Equity in Net Loss of
 Olympus................         --    (25,357)     (61,975)    (52,718)   (46,841)   (36,309)   (23,408)
                          ---------  ---------    ---------  ----------  ---------  ---------  ---------
Loss before Income
 Taxes, Extraordinary
 Loss and Cumulative
 Effect of Change in
 Accounting Principle
 (c)....................   (123,645)  (156,939)    (141,360)   (121,605)   (99,766)   (71,902)   (72,288)
Income Tax Expense......         --         --           --          --     (3,143)        --     (2,601)
Extraordinary Loss (c)..         --         --           --          --    (14,386)   (14,386)        --
Cumulative Effect of
 Change in
 Accounting Principle
 (c)....................         --         --           --          --    (59,500)        --    (89,660)
                          ---------  ---------    ---------  ----------  ---------  ---------  ---------
Net Loss................  $(123,645) $(156,939)   $(141,360)  $(121,605) $(176,795) $ (86,288) $(164,549)
                          =========  =========    =========  ==========  =========  =========  =========
Loss per Share of Common
 Stock before
 Extraordinary Loss and
 Cumulative
  Effect of Change in
 Accounting  Principle..  $   (8.94) $  (11.36)   $  (10.23) $    (8.80) $   (6.80) $   (4.77) $   (4.89)
Net Loss per Share of
 Common Stock...........  $   (8.94) $  (11.36)   $  (10.23) $    (8.80) $  (11.68) $   (5.72) $  (10.74)
Cash Dividends Declared
 per Common Share.......         --         --           --          --         --         --         --
EBITDA (d)..............  $ 101,695  $ 140,788    $ 163,679   $ 180,769  $ 202,340  $ 150,870  $ 155,393
Deficiency of Earnings
 Available to
 Cover Fixed Charges
 (e)....................  $ 127,079  $ 134,612    $  82,377   $  70,385  $  53,934  $  36,515  $  49,888
</TABLE>
 
<TABLE>
<CAPTION>
                                               MARCH 31,                                DECEMBER 31,
                         ---------------------------------------------------------  ---------------------
                            1989        1990        1991        1992       1993       1992        1993
<S>                      <C>         <C>         <C>         <C>         <C>        <C>        <C>
BALANCE SHEET DATA:
Cash and Cash
 Equivalents............ $   43,662  $   15,287  $   18,592  $   11,173  $  38,671  $ 113,992    $  3,821
Investment in and
 Amounts Due from
 Olympus (f)............         --      87,337      79,030      64,972      7,692     67,572      (7,129)
Total Assets............    897,555     971,792     981,960     925,791    949,593  1,104,247     957,709
Total Debt..............  1,121,796   1,355,330   1,495,025   1,554,270  1,731,099  1,790,551   1,798,284
Debt Net of Cash (g)....  1,078,134   1,340,043   1,476,433   1,543,097  1,692,428  1,676,559   1,794,463
Stockholders' Equity
 (Deficiency)...........   (293,640)   (450,579)   (591,939)   (713,544)  (868,614)  (778,107) (1,033,163)
</TABLE>
 
 
                                       10
<PAGE>
 
<TABLE>
<CAPTION>
                                         MARCH 31,                      DECEMBER 31,
                          -------------------------------------------  ----------------
                           1989     1990     1991     1992     1993     1992     1993
<S>                       <C>      <C>      <C>      <C>      <C>      <C>      <C>
FINANCIAL RATIOS AND
 OTHER DATA:
Total Debt to EBITDA
 (h)....................     9.87x    8.69x    8.85x    8.09x    8.41x    8.72x    8.66x
Debt Net of Cash to
 EBITDA.................     9.48x    8.59x    8.74x    8.03x    8.22x    8.17x    8.64x
EBITDA to Total Interest
 Expense................     0.91     0.94     1.00     1.10     1.23     1.25     1.14
Operating Margin (i)....     53.7%    56.8%    56.8%    56.4%    56.8%    57.2%    56.0%
Capital Expenditures....  $58,501  $75,619  $77,851  $52,808  $70,975  $57,302  $48,248
Average Monthly Revenue
 per Basic Subscriber
 (j)....................  $ 25.07  $ 26.61  $ 28.63  $ 29.82  $ 32.40  $ 31.73  $ 32.22
</TABLE>
- --------
(a) Reflects an increase in the estimated useful lives of certain intangible
    assets effective January 1990. See Note 1 to the Adelphia Communications
    Corporation Consolidated Financial Statements.
 
(b) The Company's return on its priority investment in Olympus is based on a
    16.5% return on its nonvoting preferred limited partnership interests ("PLP
    Interests"), although the Company recognizes priority investment income
    only to the extent received. At March 31, 1993 and December 31, 1993,
    $68,702,000 and $95,930,000, respectively, of accumulated priority return
    remained unpaid.
 
(c) "Extraordinary loss" relates to loss on the early retirement of the Senior
    Discount Notes. "Cumulative Effect of Change in Accounting Principle"
    refers to a change in accounting principle for Olympus and the Company.
    Effective January 1, 1993 and April 1, 1993, respectively, Olympus and the
    Company adopted the provisions of Statement of Financial Accounting
    Standards No. 109, "Accounting for Income Taxes" (SFAS 109), which requires
    an asset and liability approach for financial accounting and reporting for
    income taxes. SFAS 109 resulted in the cumulative recognition of an
    additional liability by Olympus and the Company of approximately
    $59,500,000 and $89,660,000, respectively.
 
(d) Earnings before interest, income taxes, depreciation and amortization,
    equity in net loss of Olympus, extraordinary loss and cumulative effect of
    change in accounting principle. The use of the term "EBITDA" is consistent
    with the use of the same term in the Indenture under which the New Notes
    will be issued and the indentures for the Old Notes, the 10 1/4% Notes, the
    9 7/8% Debentures, the 11 7/8% Debentures and the 12 1/2% Notes. EBITDA and
    similar measurements of cash flow are commonly used in the cable television
    industry to analyze and compare cable television companies on the basis of
    operating performance, leverage and liquidity.
 
(e) Earnings consist of operating income before income taxes and fixed charges
    (excluding capitalized interest). Fixed charges consist of (i) interest,
    whether expensed or capitalized; (ii) amortization of debt issuance costs
    and discount relating to any indebtedness, whether expensed or capitalized;
    and (iii) the assumed interest component of rent expense.
 
(f) Investment in and amounts due from Olympus at December 31, 1993 is
    comprised of the following:
 
<TABLE>
       <S>                                                       <C>
       Gross Investment in PLP Interests and General Partner's
        Equity.................................................. $ 283,002,000
       Excess of Ascribed Value of Contributed Property over
        Historical Cost.........................................   (98,303,000)
       Cumulative Equity in Net Loss of Olympus.................  (269,799,000)
                                                                 -------------
          Investments in Olympus................................   (85,100,000)
       Amounts due from Olympus.................................    77,971,000
                                                                 -------------
            Total............................................... $  (7,129,000)
                                                                 =============
</TABLE>
 
(g) Total debt less cash and cash equivalents.
 
(h) Based on annualized EBITDA for the quarter ending the period presented. The
    Company believes that this presentation is consistent with the covenant
    test which limits the incurrence of indebtedness in the Indenture under
    which the New Notes will be issued and the indentures for the Old Notes,
    the 10 1/4% Notes, the 9 7/8% Debentures, the 11 7/8% Debentures and the
    12 1/2% Notes and that this ratio is commonly used in the cable television
    industry as a measure of leverage.
 
(i) Percentage representing operating income before depreciation and
    amortization divided by revenues.
 
(j) Average for the last quarter of each period presented, including revenues
    and subscribers for the South Dade Systems up to the date of transfer to
    Olympus. The Company believes that this presentation provides meaningful
    trend information over the periods presented and is commonly used in the
    cable television industry to present such data on a comparative basis.
 
 
                                       11
<PAGE>
 
                                  RISK FACTORS
 
  Prior to making an investment decision, prospective investors should
carefully consider, along with other matters referred to herein or incorporated
by reference herein, the following:
 
REGULATION AND COMPETITION IN THE CABLE TELEVISION INDUSTRY
   
  The cable television operations of the Company may be adversely affected by
changes and developments in governmental regulation, competitive forces and
technology. The cable television industry and the Company are subject to
extensive regulation at the federal, state and local levels. Many aspects of
such regulation are currently the subject of judicial proceedings and
administrative or legislative proceedings or proposals. On October 5, 1992,
Congress passed the Cable Television Consumer Protection and Competition Act of
1992 (the "1992 Cable Act") which significantly expands the scope of regulation
of certain subscriber rates and a number of other matters in the cable
industry, such as mandatory carriage of local broadcast stations and
retransmission consent, and which will increase the administrative costs of
complying with such regulations. The Federal Communications Commission (the
"FCC") has adopted rate regulations that establish, on a system-by-system
basis, maximum allowable rates for (i) basic and cable programming services
(other than programming offered on a per-channel or per-program basis), based
upon a benchmark methodology, and (ii) associated equipment and installation
services, based upon cost plus a reasonable profit. Under the FCC rules,
franchising authorities are authorized to regulate rates for basic services and
associated equipment and installation services, and the FCC will regulate rates
for regulated cable programming services in response to complaints filed with
the agency. The original rate regulations became effective on September 1,
1993. Amendments to the rate regulations, which were announced by the FCC on
February 22, 1994, are scheduled to become effective on or about May 15, 1994.
The text of these amendments is expected to become available within
approximately 30 days of February 22, 1994. The FCC ordered an interim rate
freeze effective April 5, 1993 which has been extended through May 15, 1994.
    
  The original rate regulations required a reduction of existing rates charged
for basic services and regulated cable programming services to the greater of
(i) the applicable benchmark level or (ii) the rates in force as of September
30, 1992 reduced by 10%, adjusted forward for inflation. The amended
regulations apparently will eventually require a reduction of 17 percent,
adjusted forward for inflation, from the rates in force as of September 30,
1992. Rate reductions are not required to the extent that a cable operator at
its option elects to use an alternative cost-of-service methodology and shows
that rates for basic and cable programming services are reasonable. The FCC has
adopted interim rules to govern cost-of-service showings by cable operators.
Refunds with interest will be required to be paid by cable operators who are
required to reduce regulated rates after September 1, 1993, calculated from the
effective date of the FCC's rate regulations with regard to basic rates, and
from the date a complaint is filed with the FCC with regard to the rates
charged for regulated programming services. The FCC has reserved the right to
reduce or increase the benchmarks it has established. The rate regulations will
also limit future increases in regulated rates to an inflation indexed amount
plus increases above the inflation index in certain costs such as taxes,
franchise fees, costs associated with specific franchise requirements and
increased programming costs. Cost-based adjustments to these capped rates can
also be made in the event a cable operator adds or deletes channels. Because of
the limitation on rate increases for regulated services, future revenue growth
from cable services will rely to a much greater extent than has been true in
the past on increased revenues from unregulated services and new subscribers
than from increases in previously unregulated rates.
 
  The FCC has adopted regulations implementing most of the requirements of the
1992 Cable Act and is in the process of completing certain additional
rulemaking proceedings before the 1992 Cable Act can be fully implemented. As
noted above, amendments to the rate regulations were recently announced and the
FCC is also likely to continue to modify, clarify or refine the rate
regulations and benchmark methodology. In addition, litigation has been
instituted challenging various portions of the 1992 Cable Act and the
rulemaking proceedings including the rate regulations. The Company cannot
predict the effect or outcome of the future rulemaking proceedings, changes to
the rate regulations, or litigation. Further, because the FCC
 
                                       12
<PAGE>
 
has not yet issued its interim rules or adopted final cost-of-service rules,
the Company cannot predict whether it would be able to utilize cost-of-service
showings to justify rates.
 
  Effective as of September 1, 1993, in accordance with the 1992 Cable Act, the
Company repackaged certain existing cable services by adjusting rates for basic
service and introducing a new method of offering certain cable services. The
Company adjusted the basic service rates and related equipment and installation
rates in all of its systems in order for such rates to be in compliance with
the applicable benchmark or equipment and installation cost levels. The amended
rules may require further adjustments to the Company's rates. The Company also
implemented a program in all of its systems called "CableSelect" under which
most of the Company's satellite-delivered programming services are now offered
individually on a per channel basis, or as a group at a price of approximately
15% to 20% below the sum of the per channel prices of all such services. For
subscribers who elect to customize their channel lineup, the Company will
provide, for a monthly rental fee, an electronic device located on the cable
line outside the home, enabling a subscriber's television to receive only those
channels selected by the subscriber. These basic service rate adjustments and
the CableSelect program have also been implemented in all systems managed by
the Company. The Company believes CableSelect provides increased programming
choices to the Company's subscribers while providing flexibility to the Company
to respond to future changes in areas such as customer demand and programming.
Certain programmers have taken the position that the Company's new method of
offering services is inconsistent with their programming agreements. The
Company disagrees and is in discussions with these programmers. Revenues from
regulated programming services and equipment, and revenues from CableSelect
services per subscriber for the quarter ended December 31, 1993 (the first full
quarter reflecting the impact of the implementation of rate regulations on
September 1, 1993) declined 3.0% compared to the quarter ended June 30, 1993
(the last quarter not impacted by the implementation of rate regulations on
September 1, 1993). The decline in revenue was partially offset by increases in
prices for HBO, Cinemax, TMC, Disney, Showtime, and Prism; and by increases in
the average number of basic subscribers. A letter of inquiry, one of at least
63 sent by the FCC to numerous cable operators, was received by an Olympus
System regarding the implementation of this new method of offering services.
The Company has responded in writing to the FCC's inquiry.
 
  The FCC, in announcing the amendments to the original rate regulations,
stated that it was revising the rules governing such "a la carte" packages and
would be scrutinizing the regulatory treatment of such packages on a case-by-
case basis based on a number of factors. The FCC has indicated that "a la
carte" packages which are determined to be evasions of rate regulations rather
than true enhancements of subscriber choice will be treated as regulated tiers,
and cable operators engaging in such practices may be subject to fines and/or
further rate adjustments.
 
  The Company is currently unable to predict the effect that the amended
regulations, future FCC treatment of "a la carte" packages or other future FCC
rulemaking proceedings will have on its business and results of operations in
future periods. No assurance can be given at this time that such matters will
not have a material adverse effect on the Company's business and results of
operations in the future. Also, no assurance can be given as to what other
future actions Congress, the FCC or other regulatory authorities may take or
the effects thereof on the Company.
 
  Cable television companies operate under franchises granted by local
authorities which are subject to renewal and renegotiation from time to time.
Because such franchises are generally non-exclusive, there is a potential for
competition with the Systems from other operators of cable television systems,
including public systems operated by municipal franchising authorities
themselves, and from other distribution systems capable of delivering
television programming to homes. The 1992 Cable Act contains provisions which
encourage competition from such other sources. Additionally, recent court and
administrative decisions have removed certain of the restrictions that have
limited entry into the cable television business by potential competitors such
as telephone companies, and proposals now under consideration by the FCC, and
which are being and from time to time have been considered by Congress, could
result in the elimination of other
 
                                       13
<PAGE>
 
such restrictions. The Company cannot predict the extent to which competition
will materialize from other cable television operators, other distribution
systems for delivering television programming to the home, or other potential
competitors, or, if such competition materializes, the extent of its effect on
the Company.
 
  FCC rules permit local telephone companies to offer "video dialtone" service
for video programmers, including channel capacity for the carriage of video
programming and certain non-common carrier activities such as video processing,
billing and collection and joint marketing agreements. On December 15, 1992,
New Jersey Bell Telephone Company filed an application with the FCC to operate
a "video dialtone" service in portions of Dover County, New Jersey, in which
the Company serves approximately 20,000 subscribers. The Company opposed the
application. On July 28, 1993, the FCC sent a letter to New Jersey Bell stating
that the application appeared to be inconsistent with the FCC's video dialtone
requirements in that insufficient capacity to serve multiple programmers was to
be made available. New Jersey Bell was given the opportunity to amend its
application which, it subsequently did. The Company then filed a further
opposition to the application. The matter has not yet been decided by the FCC.
 
  On December 17, 1992, the Chesapeake and Potomac Telephone Company of
Virginia and Bell Atlantic Video Service Company ("Bell Atlantic Video") filed
suit in U.S. District Court in Alexandria, Virginia seeking to declare
unconstitutional the provisions in the Cable Communications Policy Act of 1984
(the "1984 Cable Act") that prohibit telephone companies from owning a cable
television system in their telephone service areas. On August 24, 1993, the
court held that the 1984 Cable Act cross-ownership provision is
unconstitutional, and it issued an order enjoining the FCC from enforcing the
cross-ownership ban. The U.S. Justice Department has appealed this decision to
the U.S. Court of Appeals for the Fourth Circuit. Similar suits have been filed
in other federal district courts. In addition, legislation which would alter or
eliminate the cross-ownership ban has been introduced in Congress and is under
active consideration.
 
  The Company cannot predict the outcome of the New Jersey Bell video dialtone
proceeding or the Bell Atlantic Video litigation. However, the Company believes
that the provision of video programming by telephone companies with
considerable financial resources in competition with the Company's existing
operations could have an adverse effect on the Company's financial condition
and results of operations. At this time, the magnitude of any such effect is
not known or estimable.
 
SUBSTANTIAL LEVERAGE/DEFICIENCY OF EARNINGS AVAILABLE TO COVER FIXED CHARGES
 
  The Company is highly leveraged and has incurred substantial indebtedness,
primarily to finance acquisitions and expansion of its operations and, to a
lesser extent, for investments in and advances to affiliates. At December 31,
1993, the Company's total debt aggregated approximately $1,798,284,000 which
included approximately $937,809,000 of subsidiary debt and approximately
$860,475,000 of parent debt. The Company's total debt has varying maturities to
2005, including as of December 31, 1993 an aggregate of approximately
$584,724,000 maturing on or prior to March 31, 1998. The Company's financing
strategy has been to maintain its public long-term debt at the holding company
level while borrowing in the private debt markets (e.g., bank and insurance
company debt) through the Company's wholly-owned subsidiaries. The Company's
subsidiary financings are effected through separate borrowing groups, and
substantially all of the indebtedness in these borrowing groups is non-recourse
to Adelphia. The subsidiary credit arrangements have varied revolving credit
and term periods and contain separately-negotiated covenants relating to cross-
defaults and the incurrence of additional debt for each borrowing group. See
"Management's Discussion and Analysis."
 
  The total stockholders' deficiency at March 31, 1993 and at December 31, 1993
was $868,614,000 and $1,033,163,000, respectively. However, the total
stockholders' deficiency has been reduced as a result of the Stock Offering
completed on January 14, 1994. See "Recent Development" and "Capitalization."
The stockholders' deficiency generally has resulted from the Company's reported
net losses which have been caused primarily by high levels of depreciation and
amortization and interest expense. The Company reported net losses of
approximately $141,400,000, $121,600,000 and $176,800,000, respectively, for
the years ended
 
                                       14
<PAGE>
 
March 31, 1991, 1992 and 1993 and $86,288,000 and $164,549,000, respectively,
for the nine months ended December 31, 1992 and 1993. The increase in net loss
for the year ended March 31, 1993 and the nine months ended December 31, 1993
compared to the respective prior year periods was primarily due to the
cumulative effect of the change in accounting principle for Olympus and the
Company. Effective January 1, 1993 and April 1, 1993, Olympus and the Company,
respectively, adopted the provisions of Statement of Financial Accounting
Standards (SFAS) No. 109, "Accounting for Income Taxes." The cumulative effect
of adopting SFAS No. 109 was to increase the net loss by $59,500,000 and
$89,660,000 for the year ended March 31, 1993 and the nine months ended
December 31, 1993, respectively. The Company expects to incur significant
losses for the next several years. See "Management's Discussion and Analysis."
 
  For the year ended March 31, 1993 and for the nine months ended December 31,
1993, the Company's earnings were insufficient to cover its fixed charges by
$53,934,000 and $49,888,000, respectively, and, in addition, after giving pro
forma effect to the issuance of the Old Notes and the 10 1/4% Notes and to the
Stock Offering (as defined herein) and to the application of net proceeds
therefrom as if all such events had occurred on April 1, 1992 and April 1,
1993, the Company's earnings would have been insufficient to cover its fixed
charges by $51,966,000 and $43,770,000 for the year ended March 31, 1993 and
the nine months ended December 31, 1993, respectively. However, such amounts
reflect non-cash charges totalling $90,570,000 and $67,570,000, respectively,
consisting of depreciation and amortization, and accretion of original issue
discount. Historically, the Company's cash generated from operating activities
and borrowings has been sufficient to meet its requirements for debt service,
working capital, capital expenditures, acquisitions, and investments in and
advances to affiliates. The Company believes that it will continue to generate
cash and obtain financing sufficient to meet such requirements. However, the
Company's ability to incur additional indebtedness is limited by covenants in
its parent company indentures and its subsidiary credit agreements. If the
Company were unable to meet its debt service obligations, the Company would
have to consider refinancing its indebtedness or obtaining new financing.
Although in the past the Company has been able both to refinance its
indebtedness and to obtain new financing, there can be no assurance that the
Company would be able to do so in the future or that, if the Company were able
to do so, the terms available would be favorable to the Company. In the event
that the Company were unable to refinance its indebtedness or obtain new
financing under these circumstances, the Company would likely have to consider
various options such as the sale of certain assets to meet its required debt
service, negotiation with its lenders to restructure applicable indebtedness or
other options available to it under applicable law. See "Selected Consolidated
Financial Data" and "Management's Discussion and Analysis."
 
HOLDING COMPANY STRUCTURE
 
  As a holding company, Adelphia holds no significant assets other than its
investments in and advances to its subsidiaries. Adelphia's ability to make
interest and principal payments when due to holders of debt of Adelphia is
dependent upon the receipt of sufficient funds from its subsidiaries. Under the
terms of various debt agreements between the Adelphia subsidiaries and their
respective lending institutions, upon the occurrence of an event of default
(including certain cross-defaults resulting from defaults under Adelphia's debt
agreements) or unless certain financial performance tests are met, the Adelphia
subsidiaries are restricted from distributing funds to Adelphia. In addition,
because Adelphia's subsidiaries do not guarantee the payment of principal of
and interest on debt of Adelphia, the claims of holders of such debt
effectively will be subordinated to the claim of creditors of such entities. At
December 31, 1993, the total amount of long-term debt of such subsidiaries was
$937,809,000. See "Management's Discussion and Analysis" and "Description of
New Notes."
 
POTENTIAL CONFLICTS OF INTEREST
 
  The Rigas Family holds substantially all of Adelphia's Class B Common Stock
and 93.7% of the combined voting power of both classes of Adelphia's Common
Stock and currently has the power to elect all seven members of Adelphia's
Board of Directors. John J. Rigas and the other executive officers of Adelphia
 
                                       15
<PAGE>
 
(including other members of the Rigas Family) hold direct and indirect
ownership interests in the Managed Partnerships, which are managed by the
Company for a fee. Subject to the restrictions contained in the Business
Opportunity Agreement regarding future acquisitions, Rigas Family members and
the executive officers are free to continue to own these interests and acquire
additional interests in cable television systems. Such activities could present
a conflict of interest with the Company in the allocation of management time
and resources of the executive officers. In addition, there have been and will
continue to be transactions between the Company and the executive officers or
other entities in which the executive officers have ownership interests or with
which they are affiliated. The Indenture under which the Notes will be issued
and indentures under which the 10 1/4% Notes, 9 7/8% Debentures, 11 7/8%
Debentures and 12 1/2% Notes of Adelphia were issued contain covenants that
place certain restrictions on transactions between the Company and its
affiliates. See "Description of New Notes--Covenants: Limitation on
Transactions with Affiliates."
 
TAXABLE INCOME WITHOUT CASH PAYMENTS
 
  Holders of the Notes will be required to report taxable income, for federal
income tax purposes, as original issue discount accrues thereon (regardless of
whether stated interest thereon is paid in cash or through the issuance of
additional Notes). As a result, such holders may be required to report interest
income before receiving the cash to which such interest is attributable. See
"Certain Federal Income Tax Considerations."
 
ABSENCE OF ACTIVE TRADING MARKET
 
  The New Notes are a new issue of securities for which there is currently no
active trading market, and there can be no assurance that an active trading
market for the New Notes will exist. If the New Notes are traded after their
initial issuance, they may trade at a discount from their initial offering
price, depending upon prevailing interest rates, the market for similar
securities and other factors, including general economic conditions and the
financial condition of the Company. The Company does not intend to apply for
listing of the Notes on any securities exchange or authorization for quotation
on the National Association of Securities Dealers Automated Quotations System.
No assurance can be given as to the liquidity of the trading market for the New
Notes or that an active public market will develop for the New Notes.
   
CONSEQUENCES TO NON-TENDERING HOLDERS OF OLD NOTES AND BROKER-DEALERS     
 
  Upon consummation of the Exchange Offer, the Company will have no further
obligation to register the Old Notes under the Securities Act, other than those
held by the Initial Purchaser. Thereafter, Old Notes which are not tendered or
which are tendered but not accepted will remain subject to the existing
restrictions upon transfer of such Old Notes. To the extent that Old Notes are
tendered and accepted in the Exchange Offer, the trading market for untendered
and tendered but unaccepted Old Notes could be adversely affected. In addition,
any holder of Old Notes who tenders in the Exchange Offer for the purpose of
participating in a distribution of such New Notes will be required to comply
with the registration and prospectus delivery requirements of the Securities
Act in connection with any resale transaction. Each broker-dealer that receives
New Notes for its own account in exchange for Old Notes, where such Old Notes
were acquired by such broker-dealer as a result of market-making activities or
other trading activities, must acknowledge that it will deliver a prospectus in
connection with any resale of such New Notes. See "The Exchange Offer" and
"Plan of Distribution."
 
                               RECENT DEVELOPMENT
 
  On January 14, 1994, the Company completed a public offering of 9,132,604
shares of Class A Common Stock (the "Stock Offering"), which included 300,000
shares of Class A Common Stock sold to the underwriter in the Stock Offering
pursuant to an over-allotment option. Upon completion of the Stock Offering,
there were 13,507,604 shares of Class A Common Stock outstanding and a total of
24,452,080 shares
 
                                       16
<PAGE>
 
of Class A Common Stock and Class B Common Stock outstanding. Certain
provisions of this Prospectus present information that gives effect to the
completion of the Stock Offering with net proceeds, before offering expenses,
of $156,579,000 or $17.145 per share to the Company. The net proceeds from the
Stock Offering were used to redeem all the Company's outstanding Senior
Subordinated Notes and to reduce bank debt of Adelphia's subsidiaries. Of the
9,132,604 shares of Class A Common Stock sold in the Stock Offering, 3,300,000
shares were sold to the public at $18.00 per share and 5,832,604 shares were
sold directly by Adelphia to partnerships controlled by members of the Rigas
Family, at the public offering price less the underwriting discount. Highland
Holdings and Syracuse Hilton Head Holdings, L.P., which purchased 4,374,453 and
1,458,151 of such 5,832,604 shares, respectively, hold and control the Managed
Systems. See "Management's Discussion and Analysis" in the December Form 10-Q.
 
                                USE OF PROCEEDS
 
  Adelphia will not receive any cash proceeds from the issuance of the New
Notes offered hereby. In consideration for the issuance of New Notes as
contemplated hereby, Adelphia will receive in exchange Old Notes in like
principal amount which will be retired and cancelled. The net proceeds received
by Adelphia from the offering of Old Notes of approximately $147,000,000 were
used to repay outstanding bank debt of subsidiaries in order to extend the
scheduled maturities of the Company's long-term debt. As of December 31, 1993,
the effective interest rates charged on such debt ranged from 4.375% to 5.0%,
and such debt requires amortization of principal from September 1994 through
September 1999.
 
                               THE EXCHANGE OFFER
 
PURPOSE AND EFFECT OF THE EXCHANGE OFFER
 
  On February 22, 1994, Adelphia issued $150,000,000 aggregate principal amount
of Old Notes to Salomon Brothers Inc, the Initial Purchaser. The issuance was
not registered under the Securities Act in reliance upon the exemption provided
by Section 4(2) of the Securities Act. In connection with the issuance and sale
of the Old Notes, Adelphia entered into a Registration Rights Agreement with
the Initial Purchaser dated as of February 22, 1994 (the "Registration Rights
Agreement"), which requires Adelphia to cause the Old Notes to be registered
under the Securities Act or to file with the Commission a registration
statement under the Securities Act with respect to an issue of new notes of
Adelphia identical in all material respects to the Old Notes, and use its best
efforts to cause such registration statement to become effective under the
Securities Act and, upon the effectiveness of that registration statement, to
offer to the holders of the Old Notes the opportunity to exchange their Old
Notes for a like principal amount of New Notes, which will be issued without a
restrictive legend and may be reoffered and resold by the holder without
restrictions or limitations under the Securities Act. A copy of the
Registration Rights Agreement has been filed as an exhibit to the Registration
Statement of which this Prospectus is a part. The Exchange Offer is being made
pursuant to the Registration Rights Agreement to satisfy Adelphia's obligations
thereunder.
 
  Based on no-action letters issued by the staff of the Commission to third-
parties, Adelphia believes that the New Notes issued pursuant to the Exchange
Offer in exchange for Old Notes may be offered for resale, resold and otherwise
transferred by any holder of such New Notes (other than any such holder which
is an "affiliate" of Adelphia within the meaning of Rule 405 under the
Securities Act) without compliance with the registration and prospectus
delivery provisions of the Securities Act, provided that such New Notes are
acquired in the ordinary course of such holder's business and such holder has
no arrangement or understanding with any person to participate in the
distribution of such New Notes. Any holder who tenders in the Exchange Offer
for the purpose of participating in a distribution of the New Notes cannot rely
on such interpretation by the staff of the Commission and must comply with the
registration and prospectus delivery requirements of the Securities Act in
connection with any resale transaction. Each broker dealer that receives New
Notes for its own account in exchange for Old Notes, where such Old Notes were
acquired by such broker-dealer as a result of market-making activities or other
trading activities, must acknowledge that it will deliver a prospectus in
connection with any resale of such New Notes. See "Plan of Distribution."
 
                                       17
<PAGE>
 
TERMS OF THE EXCHANGE OFFER
 
  Upon the terms and subject to the conditions set forth in this Prospectus and
in the accompanying Letter of Transmittal (which together constitute the
Exchange Offer), Adelphia will accept any and all Old Notes validly tendered
and not withdrawn prior to 5:00 p.m., New York City time, on the Expiration
Date. The Company will issue a principal amount of New Notes in exchange for an
equal principal amount of outstanding Old Notes tendered and accepted in the
Exchange Offer. Holders may tender some or all of their Old Notes pursuant to
the Exchange Offer.
 
  The form and terms of the New Notes will be the same as the form and terms of
the Old Notes except that the New Notes will be registered under the Securities
Act and hence will not bear legends restricting the transfer thereof. The New
Notes will evidence the same debt as the Old Notes. The New Notes will be
issued under and entitled to the benefits of the Indenture pursuant to which
the Old Notes were issued.
 
  As of the date of this Prospectus, $150,000,000 aggregate principal amount of
the Old Notes are outstanding. This Prospectus, together with the Letter of
Transmittal, is being sent to all registered holders.
 
  Holders of Old Notes do not have any appraisal or dissenters' rights under
the General Corporation Law of Delaware or the Indenture in connection with the
Exchange Offer. Adelphia intends to conduct the Exchange Offer in accordance
with the provisions of the Registration Rights Agreement and the applicable
requirements of the Exchange Act, and the rules and regulations of the
Commission thereunder. Old Notes which are not tendered for exchange in the
Exchange Offer will remain outstanding and continue to accrue interest, but
will not be entitled to any rights or benefits under the Registration Rights
Agreement.
 
  Upon satisfaction or waiver of all the conditions to the Exchange Offer,
Adelphia will accept, promptly after the Expiration Date, all Old Notes
properly tendered and will issue the New Notes promptly after acceptance of the
Old Notes. For purposes of the Exchange Offer, Adelphia shall be deemed to have
accepted properly tendered Old Notes for exchange when, as and if Adelphia has
given oral or written notice thereof to the Exchange Agent. The Exchange Agent
will act as agent for the tendering holders for the purposes of receiving the
New Notes from Adelphia.
 
  In all cases, issuance of New Notes for Old Notes that are accepted for
exchange pursuant to the Exchange Offer will be made only after timely receipt
by the Exchange Agent of such Old Notes, a properly completed and duly executed
Letter of Transmittal and all other required documents; provided, however, that
Adelphia reserves the absolute right to waive any defects or irregularities in
the tender or conditions of the Exchange Offer. If any tendered Old Notes are
not accepted for any reason set forth in the terms and conditions of the
Exchange Offer or if Old Notes are submitted for a greater principal amount
than the holder desires to exchange, such unaccepted or non-exchanged Old Notes
or substitute Old Notes evidencing the unaccepted portion, as appropriate, will
be returned without expense to the tendering holder thereof as promptly as
practicable after the expiration or termination of the Exchange Offer.
 
  Holders who tender Old Notes in the Exchange Offer will not be required to
pay brokerage commissions or fees or, subject to the instructions in the Letter
of Transmittal, transfer taxes with respect to the exchange of Old Notes
pursuant to the Exchange Offer. Adelphia will pay all charges and expenses,
other than certain applicable taxes described below, in connection with the
Exchange Offer. See "Fees and Expenses."
 
EXPIRATION DATE; EXTENSIONS; AMENDMENTS
 
  The term "Expiration Date," shall mean 5:00 p.m., New York City time, on
          , 1994, unless Adelphia, in its sole discretion, extends the Exchange
Offer, in which case the term "Expiration Date" shall mean the latest date and
time to which the Exchange Offer is extended.
 
  In order to extend the Expiration Date, Adelphia will notify the Exchange
Agent of any extension by oral or written notice and will mail to the
registered holders an announcement thereof, prior to 9:00 a.m., New York City
time, on the next business day after the then Expiration Date.
 
                                       18
<PAGE>
 
  Adelphia reserves the right, in its sole discretion, (i) to delay accepting
any Old Notes, to extend the Exchange Offer or to terminate the Exchange Offer
if any of the conditions set forth below under "Conditions" shall not have been
satisfied, by giving oral or written notice of such delay, extension or
termination to the Exchange Agent or (ii) to amend the terms of the Exchange
Offer. Any such delay in acceptance, extension, termination or amendment will
be followed as promptly as practicable by oral or written notice thereof. If
the Exchange Offer is amended in a manner determined by Adelphia to constitute
a material change, Adelphia will promptly disclose such amendment in a manner
reasonably calculated to inform the holders of Old Notes of such amendment.
 
  Without limiting the manner in which Adelphia may choose to make a public
announcement of any delay, extension, amendment or termination of the Exchange
Offer, Adelphia shall have no obligation to publish, advertise, or otherwise
communicate any such public announcement, other than by making a timely release
to an appropriate news agency.
 
INTEREST ON THE NEW NOTES
 
  The New Notes will bear interest from their date of issuance. Accrued
interest on Old Notes that are accepted for exchange will be paid, on the date
of the first interest payment on the New Notes (August 15, 1994), to the
holders of the New Notes as of the first record date for the payment of
interest on the New Notes (August 1, 1994). Interest on the Old Notes accepted
for exchange will cease to accrue upon issuance of the New Notes. Interest on
Old Notes not accepted for exchange will continue to accrue in accordance with
the Indenture.
 
  The New Notes will bear interest at a rate of 9 1/2% per annum. Interest on
the New Notes will be payable semi-annually on each February 15 and August 15,
commencing on August 15, 1994.
 
CONDITIONS
 
  Notwithstanding any other term of the Exchange Offer, Adelphia will not be
required to exchange any New Notes for any Old Notes, and may terminate or
amend the Exchange Offer before the acceptance of any Old Notes for exchange,
if:
 
  (a) any action or proceeding is instituted or threatened in any court or
      by or before any governmental agency with respect to the Exchange
      Offer which, in Adelphia's judgment, would materially impair the
      ability of Adelphia to proceed with the Exchange Offer; or
 
  (b) any law, statute, rule or regulation is proposed, adopted or enacted,
      or any existing law, statute, rule or regulation is interpreted by the
      staff of the Commission, which in Adelphia's judgment, would
      materially impair the ability of Adelphia to proceed with the Exchange
      Offer; or
 
  (c) the Exchange Offer would otherwise violate applicable law.
 
  If Adelphia determines in its sole discretion that any of these conditions
are not satisfied, Adelphia may (i) refuse to accept any Old Notes and return
all tendered Old Notes to the tendering holders, (ii) extend the Exchange Offer
and retain all Old Notes tendered prior to the expiration of the Exchange
Offer, subject, however, to the rights of holders who tendered such Old Notes
to withdraw their tendered Old Notes, or (iii) waive such unsatisfied
conditions with respect to the Exchange Offer and accept all properly tendered
Old Notes which have not been withdrawn. If such waiver constitutes a material
change to the Exchange Offer, Adelphia will promptly disclose such waiver by
means of a prospectus supplement that will be distributed to the registered
holders, and Adelphia will extend the Exchange Offer for a period of five to
ten business days, depending upon the significance of the waiver and the manner
of disclosure to the registered holders, if the Exchange Offer would otherwise
expire during such five to ten business day period.
 
                                       19
<PAGE>
 
  The foregoing conditions are for the sole benefit of Adelphia and may be
asserted by Adelphia regardless of the circumstances giving rise to any such
condition or may be waived by Adelphia in whole or in part at any time and from
time to time in its sole discretion. The failure by Adelphia at any time to
exercise any of the foregoing rights shall not be deemed a waiver of any such
right and each such right shall be deemed an ongoing right which may be
asserted at any time and from time to time. Any determination by Adelphia
concerning the events described above shall be final and binding on all
parties.
 
PROCEDURES FOR TENDERING
 
  The tender of Old Notes by a holder as set forth below and the acceptance
thereof by Adelphia will constitute an agreement between such holder and
Adelphia in accordance with the terms and subject to the conditions set forth
herein and in the Letter of Transmittal.
 
  Only a holder of Old Notes may tender such Old Notes in the Exchange Offer.
To tender in the Exchange Offer, a holder must complete, sign and date the
Letter of Transmittal, or a facsimile thereof, have the signatures thereon
guaranteed if required by the Letter of Transmittal, and mail or otherwise
deliver such Letter of Transmittal or such facsimile, together with the Old
Notes (unless such tender is being effected pursuant to the procedure for book-
entry transfer described below) and any other required documents, to the
Exchange Agent prior to 5:00 p.m., New York City time, on the Expiration Date,
or by complying with the guaranteed delivery procedures described below.
 
  DELIVERY OF ALL DOCUMENTS MUST BE MADE TO THE EXCHANGE AGENT AT ITS ADDRESS
SET FORTH HEREIN. THE METHOD OF DELIVERY OF OLD NOTES AND THE LETTER OF
TRANSMITTAL AND ALL OTHER REQUIRED DOCUMENTS TO THE EXCHANGE AGENT IS AT THE
ELECTION AND RISK OF THE HOLDER. INSTEAD OF DELIVERY BY MAIL, IT IS RECOMMENDED
THAT HOLDERS USE AN OVERNIGHT OR HAND DELIVERY SERVICE. IN ALL CASES,
SUFFICIENT TIME SHOULD BE ALLOWED TO ASSURE DELIVERY TO THE EXCHANGE AGENT
BEFORE THE EXPIRATION DATE. NO LETTER OF TRANSMITTAL OR OLD NOTES SHOULD BE
SENT TO ADELPHIA. HOLDERS MAY REQUEST THEIR RESPECTIVE BROKERS, DEALERS,
COMMERCIAL BANKS, TRUST COMPANIES OR NOMINEES TO EFFECT THE ABOVE TRANSACTIONS
FOR SUCH HOLDERS.
 
  Any beneficial owner whose Old Notes are registered in the name of a broker,
dealer, commercial bank, trust company or other nominee and who wishes to
tender should contact the registered holder promptly and instruct such
registered holder to tender on such beneficial owner's behalf. If such
beneficial owner wishes to tender on such owner's own behalf, such owner must,
prior to completing and executing the Letter of Transmittal and delivering of
such owner's Old Notes, either make appropriate arrangements to register
ownership of the Old Notes in such owner's name or obtain a properly completed
bond power from the registered holder. The transfer of registered ownership may
take considerable time.
 
  Signatures on a Letter of Transmittal or a notice of withdrawal, as the case
may be, must be guaranteed by any Eligible Institution (as defined below)
unless the Old Notes tendered pursuant thereto are tendered (i) by a registered
holder who has not completed the box entitled "Special Payment Instructions" or
"Special Delivery Instructions" on the Letter of Transmittal or (ii) for the
account of an Eligible Institution (as defined below). In the event that
signatures on a Letter of Transmittal or a notice of withdrawal, as the case
may be, are required to be guaranteed, such guarantee must be by a member firm
of a registered national securities exchange or of the National Association of
Securities Dealers, Inc., a commercial bank or trust company having an office
or correspondent in the United States or an "eligible guarantor institution"
within the meaning of Rule 17Ad-15 under the Exchange Act (an "Eligible
Institution").
 
  If the Letter of Transmittal is signed by a person other than the registered
holder of any Old Notes listed therein, such Old Notes must be endorsed or
accompanied by a properly completed bond power, signed by such registered
holder as such registered holder's name appears on such Old Notes with the
signature thereon guaranteed by an Eligible Institution. If the Letter of
Transmittal or any Old Notes or bond powers are signed by trustees, executors,
administrators, guardians, attorneys-in-fact, officers of corporations or
others acting in a fiduciary or representative capacity, such persons should so
indicate when signing, and
 
                                       20
<PAGE>
 
unless waived by Adelphia, evidence satisfactory to Adelphia of their authority
to so act must be submitted with the Letter of Transmittal.
 
  Any financial institution that is a participant in the book-entry transfer
facility for the Old Notes, The Depository Trust Company ("DTC"), may make
book-entry delivery of Old Notes by causing DTC to transfer such Old Notes into
the Exchange Agent's account with respect to the Old Notes in accordance with
DTC's procedures for such transfer. Although delivery of Old Notes may be
effected through book-entry transfer into the Exchange Agent's account at DTC,
an appropriate Letter of Transmittal with any required signature guarantee and
all other required documents must in each case be transmitted to and received
and confirmed by the Exchange Agent at its address set forth below on or prior
to the Expiration Date, or, if the guaranteed delivery procedures described
below are complied with, within the time period provided under such procedures.
 
  All questions as to the validity, form, eligibility (including time of
receipt), acceptance of tendered Old Notes and withdrawal of tendered Old Notes
will be determined by Adelphia in its sole discretion, which determination will
be final and binding. Adelphia reserves the absolute right to reject any and
all Old Notes not properly tendered or any Old Notes Adelphia's acceptance of
which would, in the opinion of counsel for Adelphia, be unlawful. Adelphia also
reserves the right to waive any defects, irregularities or conditions of tender
as to particular Old Notes. Adelphia's interpretation of the terms and
conditions of the Exchange Offer (including the instructions in the Letter of
Transmittal) will be final and binding on all parties. Unless waived, any
defects or irregularities in connection with tenders of Old Notes must be cured
within such time as Adelphia shall determine. Although Adelphia intends to
notify holders of defects or irregularities with respect to tenders of Old
Notes, neither Adelphia, the Exchange Agent nor any other person shall incur
any liability for failure to give such notification. Tenders of Old Notes will
not be deemed to have been made until such defects or irregularities have been
cured or waived. Any Old Notes received by the Exchange Agent that are not
properly tendered and as to which the defects or irregularities have not been
cured or waived will be returned by the Exchange Agent to the tendering
holders, unless otherwise provided in the Letter of Transmittal, as soon as
practicable following the Expiration Date.
 
  In addition, Adelphia reserves the right in its sole discretion to purchase
or make offers for any Old Notes that remain outstanding subsequent to the
Expiration Date or, as set forth below under "Conditions," to terminate the
Exchange Offer and, to the extent permitted by applicable law, purchase Old
Notes in the open market, in privately negotiated transactions or otherwise.
The terms of any such purchases or offers could differ from the terms of the
Exchange Offer.
 
  By tendering, each holder will represent to Adelphia that, among other
things, the New Notes acquired pursuant to the Exchange Offer are being
obtained in the ordinary course of business of the person receiving such New
Notes, whether or not such person is the holder, that neither the holder nor
any such person has an arrangement or understanding with any person to
participate in the distribution of such New Notes and that neither the holder
nor any such other person is an "affiliate," as defined in Rule 405 under the
Securities Act, of Adelphia.
 
GUARANTEED DELIVERY PROCEDURES
 
  Holders who wish to tender their Old Notes and (i) whose Old Notes are not
immediately available, (ii) who cannot deliver their Old Notes, the Letter of
Transmittal or any other required documents to the Exchange Agent prior to the
Expiration Date, or (iii) who cannot complete the procedures for book-entry
transfer of Old Notes to the Exchange Agent's account with DTC prior to the
Expiration Date, may effect a tender if:
 
  (a) The tender is made through an Eligible Institution;
 
  (b) On or prior to the Expiration Date, the Exchange Agent receives from
      such Eligible Institution a properly completed and duly executed
      Notice of Guaranteed Delivery (by facsimile transmission,
 
                                       21
<PAGE>
 
      mail or hand delivery) setting forth the name and address of the
      holder, the certificate number(s) of such Old Notes (if possible) and
      the principal amount of Old Notes tendered, stating that the tender is
      being made thereby and guaranteeing that, within five business trading
      days after the Expiration Date, (i) the Letter of Transmittal (or
      facsimile thereof) together with the certificate(s) representing the
      Old Notes and any other documents required by the Letter of Transmittal
      will be deposited by the Eligible Institution with the Exchange Agent,
      or (ii) that book-entry transfer of such Old Notes into the Exchange
      Agent's account at DTC will be effected and confirmation of such book-
      entry transfer will be delivered to the Exchange Agent; and
 
  (c) Such properly completed and executed Letter of Transmittal (or
      facsimile thereof), as well as the certificate(s) representing all
      tendered Old Notes in proper form for transfer and all other documents
      required by the Letter of Transmittal, or confirmation of book-entry
      transfer of the Old Notes into the Exchange Agent's account at DTC,
      are received by the Exchange Agent within five business trading days
      after the Expiration Date.
 
  Upon request to the Exchange Agent, a Notice of Guaranteed Delivery will be
sent to holders who wish to tender their Old Notes according to the guaranteed
delivery procedures set forth above.
 
WITHDRAWAL OF TENDERS
 
  Except as otherwise provided herein, tenders of Old Notes may be withdrawn at
any time prior to 5:00 p.m., New York City time, on the Expiration Date.
 
  To withdraw a tender of Old Notes in the Exchange Offer, a telegram, telex,
facsimile transmission or letter indicating notice of withdrawal must be
received by the Exchange Agent at its address set forth herein prior to 5:00
p.m., New York City time, on the Expiration Date. Any such notice of withdrawal
must (i) specify the name of the person having tendered the Old Notes to be
withdrawn (the "Depositor"), (ii) identify the Old Notes to be withdrawn
(including the certificate number or numbers and principal amount of such Old
Notes), (iii) be signed by the holder in the same manner as the original
signature on the Letter of Transmittal by which such Old Notes were tendered
(including any required signature guarantees) or be accompanied by documents of
transfer sufficient to have the Trustee with respect to the Old Notes register
the transfer of such Old Notes into the name of the person withdrawing the
tender and (iv) specify the name in which any such Old Notes are to be
registered, if different from that of the Depositor. If Old Notes have been
tendered pursuant to the procedure for book-entry transfer, any notice of
withdrawal must specify the name and number of the account at DTC to be
credited with the withdrawn Old Notes or otherwise comply with DTC's
procedures. All questions as to the validity, form and eligibility (including
time of receipt) of such notices will be determined by Adelphia, whose
determination shall be final and binding on all parties. Any Old Notes so
withdrawn will be deemed not to have been validly tendered for purposes of the
Exchange Offer and no New Notes will be issued with respect thereto unless the
Old Notes so withdrawn are validly retendered. Any Old Notes which have been
tendered but which are not accepted for payment will be returned to the holder
thereof without cost to such holder as soon as practicable after withdrawal,
rejection of tender or termination of the Exchange Offer. Properly withdrawn
Old Notes may be retendered by following one of the procedures described above
under "Procedures for Tendering" at any time prior to the Expiration Date.
 
UNTENDERED OLD NOTES
 
  Holders of Old Notes whose Old Notes are not tendered or are tendered but not
accepted in the Exchange Offer will continue to hold such Old Notes and will be
entitled to all the rights and preferences and subject to the limitations
applicable thereto under the Indenture. Following consummation of the Exchange
Offer, the holders of Old Notes will continue to be subject to the existing
restrictions upon transfer thereof and Adelphia will have no further
obligations to such holders, other than the Initial Purchaser, to
 
                                       22
<PAGE>
 
provide for the registration under the Securities Act of the Old Notes held by
them. To the extent that Old Notes are tendered and accepted in the Exchange
Offer, the trading market for untendered and tendered but unaccepted Old Notes
could be adversely affected.
 
EXCHANGE AGENT
 
  Bank of Montreal Trust Company has been appointed as Exchange Agent of the
Exchange Offer. Questions and requests for assistance, requests for additional
copies of this Prospectus or of the Letter of Transmittal and requests for
Notices of Guaranteed Delivery should be directed to the Exchange Agent
addressed as follows:
 
By Registered or Certified Mail, by hand           By Facsimile:
        or by Overnight Courier:
 
 
   Bank of Montreal Trust Company           Bank of Montreal Trust Company
          77 Water Street               Attention: Corporate Trust Department
        New York, NY 10005                         (212) 701-7684
Attention: Corporate Trust Department
 
                                               Confirm by Telephone:
                                                   (212) 701-7653
 
FEES AND EXPENSES
 
  The expenses of soliciting tenders will be borne by Adelphia. The principal
solicitation is being made by mail; however, additional solicitation may be
made by telegraph, telephone or in person by officers and regular employees of
Adelphia and its affiliates.
 
  Adelphia has not retained any dealer-manager in connection with the Exchange
Offer and will not make any payments to brokers, dealers or others soliciting
acceptances of the Exchange Offer. Adelphia, however, will pay the Exchange
Agent reasonable and customary fees for its services and will reimburse it for
its reasonable out-of-pocket expenses in connection therewith and will pay the
reasonable fees and expenses of holders in delivering their Old Notes to the
Exchange Agent.
 
  The cash expenses to be incurred in connection with the Exchange Offer will
be paid by Adelphia. Such expenses include fees and expenses of the Exchange
Agent and Trustee, accounting and legal fees and printing costs, among others.
 
  Adelphia will pay all transfer taxes, if any, applicable to the exchange of
Old Notes pursuant to the Exchange Offer. If, however, certificates
representing New Notes or Old Notes for principal amounts not tendered or
accepted for exchange are to be delivered to, or are to be issued in the name
of, any person other than the registered holder of the Old Notes tendered, or
if tendered Old Notes are registered in the name of any person other than the
person signing the Letter of Transmittal, or if a transfer tax is imposed for
any reason other than the exchange of Old Notes pursuant to the Exchange Offer,
then the amount of any such transfer taxes (whether imposed on the registered
holder or any other persons) will be payable by the tendering holder. If
satisfactory evidence of payment of such taxes or exemption therefrom is not
submitted with the Letter of Transmittal, the amount of such transfer taxes
will be billed directly to such tendering holder.
 
ACCOUNTING TREATMENT
 
  The New Notes will be recorded at the same carrying value as the Old Notes as
reflected in Adelphia's accounting records on the date of the exchange.
Accordingly, no gain or loss for accounting purposes will be recognized by
Adelphia. The expenses of the Exchange Offer will be expensed over the terms of
the New Notes.
 
 
                                       23
<PAGE>
 
                                 CAPITALIZATION
 
  The following table sets forth the actual capitalization of the Company at
December 31, 1993 and as adjusted to give effect to the Stock Offering and to
the Offering of Notes, and to the application of the net proceeds therefrom.
 
<TABLE>
<CAPTION>
                                                       DECEMBER 31, 1993
                                                    ------------------------
                                                      ACTUAL     AS ADJUSTED
                                                    -----------  -----------
                                                    (DOLLARS IN THOUSANDS)
<S>                                                 <C>          <C>
Total Debt (a):
  Notes of subsidiaries to banks................... $   402,775  $   199,541(b)
  Notes of subsidiaries to institutions ...........     516,500      516,500
                                                    -----------  -----------
    Total subsidiaries' debt.......................     919,275      716,041
   9 1/2% Senior Pay-In-Kind Notes Due 2004........          --      150,000(b)
  10 1/4% Senior Notes Due 2000....................     108,731      108,731
  12 1/2% Senior Notes Due 2002....................     400,000      400,000
  11 7/8% Senior Debentures Due 2004...............     124,435      124,435
   9 7/8% Senior Debentures Due 2005...............     127,856      127,856
      13% Senior Subordinated Notes Due 1996.......      99,453          -- (b)
  Other debt.......................................      18,534       18,534
                                                    -----------  -----------
    Total Debt.....................................   1,798,284    1,645,597
 
Stockholders' Equity (Deficiency):
  Preferred Stock, $.01 par value, 5,000,000 shares
   authorized, none issued.........................     --           --
  Class A Common Stock, $.01 par value, 50,000,000
   shares authorized, 4,375,000 and 13,507,604
   shares issued and outstanding, liquidation
   preference, $1.00 per share (c).................          44          135(d)
  Class B Common Stock, $.01 par value, 25,000,000
   shares authorized, 10,944,476 shares issued and
   outstanding.....................................         109          109
  Paid-in capital..................................      60,112      216,254(d)
  Accumulated deficit..............................  (1,093,428)  (1,094,242)(e)
                                                    -----------  -----------
    Stockholders' Equity (Deficiency)..............  (1,033,163)    (877,744)
                                                    -----------  -----------
    Total Capitalization........................... $   765,121  $   767,853
                                                    ===========  ===========
</TABLE>
- --------
(a) Reference is made to Note 3 to the Adelphia Communications Corporation
    Consolidated Financial Statements for a description of Notes of
    subsidiaries to banks and institutions. See "Management's Discussion and
    Analysis--Liquidity and Capital Resources."
 
(b) Gives effect to the application of $100,000,000 of the net proceeds from
    the Stock Offering for the redemption of the Senior Subordinated Notes, and
    to the application of the remainder of the proceeds from the Stock Offering
    ($56,234,000) and to the estimated net proceeds from the Offering of Notes
    ($147,000,000) to reduce bank debt of subsidiaries.
 
(c) Does not include an aggregate of 700,000 shares of Class A Common Stock
    reserved for issuance to officers and other key employees pursuant to
    Adelphia's Stock Option Plan of 1986 and Restricted Stock Bonus Plan.
 
(d) Gives effect to the issuance of 9,132,604 shares of Class A Common Stock
    pursuant to the Stock Offering.
 
(e) Gives effect to the redemption at par of the Senior Subordinated Notes,
    with accretion requirements of $547,000, and the treatment as an expense of
    deferred debt cost of $267,000.
 
                                       24
<PAGE>
 
                           DESCRIPTION OF NEW NOTES
 
  The Old Notes were issued pursuant to the Indenture between Adelphia and The
Bank of Montreal Trust Company, as trustee (the "Trustee"). The New Notes will
be issued under and entitled to the benefits of the Indenture. The form and
terms of the New Notes will be substantially the same as the form and terms of
the Old Notes except that the New Notes will be registered under the
Securities Act and, therefore, will not contain registration rights or bear
legends restricting the transfer thereof. The following is a summary of the
material provisions of the Indenture. References in this Section to the
"Notes" refer to the Old Notes and the New Notes. The terms of the Notes
include those stated in the Indenture and those made part of the Indenture by
reference to the Trust Indenture Act of 1939, as amended (the "Trust Indenture
Act"), as in effect on the date of the Indenture. The Notes are subject to all
such terms, and holders of the Notes are referred to the Indenture and the
Trust Indenture Act for a statement of those terms. The statements under this
caption relating to the Notes and the Indenture are summaries and do not
purport to be complete. Such summaries may make use of certain terms defined
in the Indenture and are qualified in their entirety by express reference to
the Indenture. A copy of the form of Indenture will be provided upon request
without charge to any prospective investor.
 
GENERAL
 
  The Indenture authorizes the issuance of $150,000,000 in aggregate principal
amount of the Notes plus Notes in the aggregate principal amount necessary to
pay interest, at the option of the Company, in additional Notes. The Notes are
general unsecured obligations of Adelphia and are effectively subordinate in
right of payment to the liabilities of Adelphia's subsidiaries. See
"Subordination to Subsidiary Debt" and "Certain Definitions" below.
 
  The Notes will mature on February 15, 2004. Adelphia will pay interest on
February 15 and August 15 of each year, commencing August 15, 1994, to the
persons who are registered holders at the close of business on the February 1
and August 1 immediately preceding the interest payment date. On or prior to
February 15, 1999, interest on the Notes may be paid in cash, through the
issuance of additional Notes (valued at 100% of their principal amount) or in
any combination thereof at the option of the Company, in accordance with the
terms of the Indenture.
 
  The principal of, premium, if any, and interest on the Notes will be payable
at the office or agency to be maintained by Adelphia, which, unless otherwise
provided by Adelphia, will be the offices of the Trustee. The principal of and
interest payments on the Notes may be paid by check. Except as described
below, the Notes may be presented for registration of transfer and exchange at
such offices.
 
  The Notes will be issued in fully registered form only.
 
  The Indenture and the existing indentures under which the 12 1/2% Notes, the
11 7/8% Debentures, the 9 7/8% Debentures and the 10 1/4% Notes of Adelphia
were issued contain covenants which may afford holders of Notes, the 12 1/2%
Notes, the 11 7/8% Debentures, the 9 7/8% Debentures and the 10 1/4% Notes
certain protections regarding leverage and the incurrence of indebtedness.
These include covenants which limit the amount of additional indebtedness that
may be incurred by Adelphia and its subsidiaries, which restrict mergers and
consolidations by Adelphia unless after giving effect to the transaction the
consolidated fixed charge ratio of the surviving entity satisfies certain
compliance tests, and which require such Notes, 12 1/2% Notes, 11 7/8%
Debentures, 9 7/8% Debentures and 10 1/4% Notes to be secured equally and
ratably with other indebtedness in certain circumstances where Adelphia
creates or assumes liens on its property or assets in connection therewith.
See "Covenants" below.
 
 
                                      25
<PAGE>
 
REDEMPTION
 
  Optional Redemption. The Notes will be redeemable at the option of Adelphia,
in whole or in part, at any time on or after February 15, 1999 at the following
redemption prices (expressed as a percentage of principal amount) if redeemed
during the twelve-month period beginning on the dates indicated below:
 
<TABLE>
      <S>                                                                <C>
      February 15, 1999................................................. 103.56%
      February 15, 2000................................................. 102.38%
      February 15, 2001................................................. 101.19%
</TABLE>
 
and from February 15, 2002 and thereafter at 100% of the principal amount,
together, in each case, with accrued interest to the redemption date. In the
event of redemption of fewer than all of the Notes, the Trustee shall select by
lot or in such other manner as it shall deem fair and equitable the Notes to be
redeemed. The Notes will be redeemable in whole or in part upon not less than
30 nor more than 60 days' prior written notice, mailed by first class mail to a
holder's last address as it shall appear on the register of Notes maintained by
the Registrar. On and after any redemption date, interest will cease to accrue
on the Notes or portions thereof called for redemption unless Adelphia shall
fail to redeem any such Note.
 
  In addition, in the event of a sale by the Company prior to February 15, 1996
of at least $100 million of its Capital Stock to a Strategic Equity Investor
(an "Equity Event"), up to 33 1/3% of the aggregate principal amount of Notes
then outstanding may be redeemed, at the Company's option, upon not less than
30 nor more than 60 days' prior written notice given to holders within 30 days
after the Equity Event, from the net cash proceeds of the Equity Event at
109.50% of such principal amount, together with accrued interest to the
redemption date.
 
BOOK-ENTRY; DELIVERY AND FORM
 
  The certificates representing the Notes will be issued in fully registered
form without coupons. The Old Notes were and the New Notes, except as directed
herein, will be initially represented by a global note in fully registered form
without interest coupons (the "Global Old Note" and "Global New Note",
respectively, and each a "Global Note") and were and will be deposited with the
Trustee as custodian for The Depository Trust Company, New York, New York
("DTC") and registered in the name of a nominee of DTC.
 
  Old Notes represented by beneficial interests in the Global Old Note are
exchangeable for Old Notes represented by physical certificates. Notes
initially purchased by or transferred to persons who elect to take physical
delivery of certificates instead of holding their interest through a Global
Note (and which are thus ineligible to trade through DTC) (collectively
referred to herein as the "Non-Global Purchasers") will be issued in registered
form without interest coupons (the "Certificated Notes").
 
  Old Notes represented by the Global Old Note, to the extent directed by the
holders thereof in their Letter of Transmittal, will be exchanged through book-
entry electronic transfer for a Global New Note. Interests in the Global New
Note will, upon request, be exchangeable for Certificated New Notes in
accordance with DTC's customary procedures.
 
  Upon the issuance of a Global Note, DTC or its custodian will credit, on its
internal system, the respective principal amount of the individual beneficial
interests represented by such Global Note to the accounts of institutions that
have accounts with such depositary ("participants"). Ownership of beneficial
interests in the Global Note will be limited to participants or persons who
hold interests through participants. Ownership of beneficial interests in the
Global Note will be shown on, and the transfer of that ownership will be
affected only through, records maintained by DTC or its nominee (with respect
to interests of participants) and the records of participants (with respect to
interests of persons other than participants).
 
  So long as DTC or its nominee is the registered owner or holder of a Global
Note, DTC or such nominee, as the case may be, will be considered the sole
owner or holder of the Notes represented by such Global Note
 
                                       26
<PAGE>
 
for all purposes under the Indenture and the Notes. No beneficial owner of an
interest in a Global Note will be able to transfer the interest except in
accordance with DTC's applicable procedures, in addition to those provided for
under the Indenture or described elsewhere herein.
 
  Payments of the principal of, and interest on, a Global Note will be made to
DTC or its nominee, as the case may be, as the registered owner and holder
thereof. Neither the Company, the Trustee nor any Paying Agent will have any
responsibility or liability for any aspect of the records relating to or
payments made on account of beneficial ownership interests in the Global Note
or for maintaining, supervising or reviewing any records relating to such
beneficial ownership interests.
 
  Transfers between participants in DTC will be effected in the ordinary way in
accordance with DTC rules. If a holder requires physical delivery of a
Certificated Note for any reason such holder must transfer its interest in a
Global Note in accordance with the normal procedures of DTC and the procedures
set forth in the Indenture.
 
  DTC has advised the Company that it will take any action permitted to be
taken by a holder of Notes (including the presentation of Notes for exchange as
described below) only at the direction of one or more participants to whose
account the DTC interests in a Global Note is credited and only in respect of
such portion of the aggregate principal amount of the Notes as to which such
participant or participants has or have given such direction. However, if there
is an Event of Default (as defined below) under the Notes, DTC will exchange
the Global Note for Certificated Notes, which it will distribute to its
participants. If DTC is at any time unwilling or unable to continue as a
depositary for a Global Note and a successor depositary is not appointed by the
Company within 90 days, the Company will issue Certificated Notes in exchange
for such Global Note.
 
CERTAIN DEFINITIONS
 
  Set forth below is a summary of certain of the defined terms used in the
covenants contained in the Indenture. Reference is made to the Indenture for
the full definition of all such terms as well as any other capitalized terms
used herein for which no definition is provided.
 
  "Affiliate" means a Person (i) which directly or indirectly through one or
more intermediaries controls, or is controlled by, or is under common control
with, Adelphia, (ii) which beneficially owns or holds 10% or more of any class
of the voting Capital Stock of Adelphia, or (iii) of which 10% or more of the
voting Capital Stock is beneficially owned or held by Adelphia, a Restricted
Subsidiary or an Unrestricted Subsidiary of Adelphia. Without limitation, an
Affiliate also includes any director or executive officer of Adelphia. As used
herein, "Affiliate" shall not include a Restricted Subsidiary.
 
  "Aggregate Excess Restricted Investments" means for any fiscal quarter the
aggregate of Excess Restricted Investments with respect to the Restricted
Investments in all of the Unrestricted Subsidiaries and Affiliates of Adelphia.
 
  "Allowable Securities" means (i) cash equivalents, (ii) common or preferred
Capital Stock in a Person which (x) has Investment Grade Senior Debt or (y)
whose ratio of Indebtedness plus Preferred Stock to Annualized Pro Forma EBITDA
is less than 7.75:1, or (iii) debt securities issued by a Person which (x) has
Investment Grade Senior Debt or (y) whose Leverage Ratio is less than 7.75:1,
provided that the securities in (ii)(y) and (iii)(y) above shall only be deemed
to be Allowable Securities if the principal business of the Person is owning
and operating cable television systems.
 
  "Annualized Pro Forma EBITDA" means, with respect to any Person, (i) such
Person's Pro Forma EBITDA for the latest fiscal quarter multiplied by four,
minus (ii) in the case of Adelphia only, Adelphia's Aggregate Excess Restricted
Investments for such fiscal quarter.
 
 
                                       27
<PAGE>
 
  "Asset Sale" means the sale, transfer or other disposition (other than to
Adelphia or any of its Restricted Subsidiaries) in any single transaction or
series of related transactions of (a) any Capital Stock of or other equity
interest in any Restricted Subsidiary, (b) all or substantially all of the
assets of Adelphia or of any Restricted Subsidiary, or (c) all or
substantially all of the assets of a Company system or part thereof serving at
least 5,000 basic subscribers, a division, line of business or comparable
business segment of Adelphia or any Restricted Subsidiary.
 
  "Capital Stock" means, with respect to any Person, any and all shares or
other equivalents (however designated) of corporate stock, partnership
interests or any other participation, right or other interest in the nature of
an equity interest in such Person or any option, warrant or other security
convertible into any of the foregoing.
 
  "Capital Stock Sale Proceeds" means the aggregate net sale proceeds
(including the fair market value of property, other than cash, as determined
by an independent appraisal firm) received by Adelphia from the issue or sale
(other than to a Subsidiary) by Adelphia of any class of its Capital Stock on
or after January 1, 1993 (including Capital Stock of Adelphia issued after
January 1, 1993 upon conversion of or in exchange for other securities of
Adelphia).
 
  "Capitalized Lease Obligations" means Indebtedness represented by
obligations under a lease that is required to be capitalized for financial
reporting purposes in accordance with generally accepted accounting principles
and the amount of such Indebtedness shall be the capitalized amount of such
obligations determined in accordance with generally accepted accounting
principles.
 
  "Change of Control" means such time as (i) (a) a "person" or "group" (within
the meaning of Sections 13(d) and 14(d)(2) of the Exchange Act), other than
the Rigas Family and its affiliates, becomes the "beneficial owner" (as
defined in Rule 13d-3 under the Exchange Act) of more than 35% of the total
voting power required to elect or designate for election a majority of
Adelphia's Board of Directors and attaching to the then outstanding voting
Capital Stock of Adelphia and (b) the Rigas Family, together with its
affiliates, is not at such time the "beneficial owner" (as defined in Rule
13d-3 under the Exchange Act) of more than 35% of the total voting power
required to elect or designate for election a majority of Adelphia's Board of
Directors and attaching to the then outstanding voting Capital Stock of
Adelphia, or (ii) during any period of two consecutive calendar years,
individuals who at the beginning of such period constituted Adelphia's Board
of Directors (together with any new directors whose election by Adelphia's
Board of Directors or whose nomination for election by Adelphia's stockholders
was approved by a vote of at least two-thirds of the directors then still in
office who either were directors at the beginning of such period or whose
election or nomination for election was previously so approved or approved by
the Rigas Family and its affiliates at a time when they had the right or
ability by voting right, contract or otherwise to elect or designate for
election a majority of Adelphia's Board of Directors) cease for any reason to
constitute a majority of the directors then in office.
 
  "Change of Control Triggering Event" means the occurrence of both a Change
of Control and a Rating Decline.
 
  "Closing Price" on any Trading Day with respect to the per share price of
any shares of Capital Stock means the last reported sale price regular way or,
in case no such reported sale takes place on such day, the average of the
reported closing bid and asked prices regular way, in either case on the New
York Stock Exchange or, if such shares of Capital Stock are not listed or
admitted to trading on such exchange, on the principal national securities
exchange on which such shares are listed or admitted to trading or, if not
listed or admitted to trading on any national securities exchange, on the
National Association of Securities Dealers Automated Quotations National
Market System or, if such shares are not listed or admitted to trading on any
national securities exchange or quoted on such automated quotations system but
the issuer is a Foreign Issuer (as defined in Rule 3b-4(b) under the Exchange
Act) and the principal securities exchange on which such shares are listed or
admitted to trading is a Designated Offshore Securities Market (as defined in
Rule 902(a) under the Securities Act), the average of the reported closing bid
and asked prices regular way on
 
                                      28
<PAGE>
 
such principal exchange, or, if such shares are not listed or admitted to
trading on any national securities exchange or quoted on such automated
quotation system and the issuer and principal securities exchange do not meet
such requirements, the average of the closing bid and asked prices in the over-
the-counter market as furnished by any New York Stock Exchange member firm that
is selected from time to time by the Company for that purpose and is reasonably
acceptable to the Trustee.
 
  "Common Stock" of any Person means Capital Stock of such Person that does not
rank prior, with respect to dividends, distributions or liquidation proceeds of
such Person, to shares of Capital Stock of any other class of such Person.
 
  "Consolidated Fixed Charge Ratio" means, for any Person, for any period, the
ratio of (i) Annualized Pro Forma EBITDA to (ii) Consolidated Interest Expense
for such period multiplied by four.
 
  "Consolidated Interest Expense" means, for any Person, for any period, the
amount of interest in respect of Indebtedness (including amortization of
original issue discount, amortization of debt issuance costs, and non-cash
interest payments on any Indebtedness and the interest portion of any deferred
payment obligation and after taking into account the effect of elections made
under any Interest Rate Agreement, however denominated, with respect to such
Indebtedness), the amount of Redeemable Dividends and the interest component of
rentals in respect of any Capitalized Lease Obligation paid, accrued or
scheduled to be paid or accrued by such Person during such period, determined
on a consolidated basis in accordance with generally accepted accounting
principles. For purposes of this definition, interest on a Capitalized Lease
Obligation shall be deemed to accrue at an interest rate reasonably determined
by such Person to be the rate of interest implicit in such Capitalized Lease
Obligation in accordance with generally accepted accounting principles
consistently applied.
 
  "Cumulative Credit" means the sum of (i) Capital Stock Sale Proceeds plus
(ii) cumulative EBITDA of Adelphia from and after January 1, 1993 to the end of
the fiscal quarter immediately preceding the date of a proposed Restricted
Payment, or, if such cumulative EBITDA for such period is negative, minus the
amount by which such cumulative EBITDA is less than zero.
 
  "Cumulative Interest Expense" means the aggregate amount of Consolidated
Interest Expense paid, accrued or scheduled to be paid or accrued by Adelphia
from January 1, 1993 to the end of the fiscal quarter immediately preceding a
proposed Restricted Payment, determined on a consolidated basis in accordance
with generally accepted accounting principles.
 
  "EBITDA" means, for any Person, for any period, an amount equal to (A) the
sum of (i) consolidated net income for such period (exclusive of any gain or
loss realized in such period upon an Asset Sale), plus (ii) the provision for
taxes for such period based on income or profits to the extent such income or
profits were included in computing consolidated net income and any provision
for taxes utilized in computing net loss under clause (i) hereof, plus (iii)
Consolidated Interest Expense for such period, plus (iv) depreciation for such
period on a consolidated basis, plus (v) amortization of intangibles for such
period on a consolidated basis, plus (vi) any other non-cash items reducing
consolidated net income for such period, minus (B) all non-cash items
increasing consolidated net income for such period, all for such Person and its
Subsidiaries determined in accordance with generally accepted accounting
principles consistently applied, except that with respect to Adelphia each of
the foregoing items shall be determined on a consolidated basis with respect to
Adelphia and its Restricted Subsidiaries only.
 
  "Excess Restricted Investment" means, with respect to any particular
Unrestricted Subsidiary or Affiliate of Adelphia for a fiscal quarter, the
lesser of the amounts described in the following clauses (i) and (ii), or, if
such amounts are equal, such amount:
 
  (i) the aggregate amount of any Restricted Investments (other than the
      Initial Investment) made by Adelphia or any Restricted Subsidiary with
      respect to such Unrestricted Subsidiary or Affiliate
 
                                       29
<PAGE>
 
       after the date of the Indenture and during the twelve-month period
       ending on the last day of such fiscal quarter;
 
  (ii) cash income received during such quarter by Adelphia with respect to
       its Restricted Investments in such Unrestricted Subsidiary or
       Affiliate multiplied by four;
 
and provided that cash income from a particular Restricted Investment shall be
included only (x) if cash income has been received by Adelphia with respect to
such Restricted Investment during each of the previous two fiscal quarters, or
(y) if the cash income derived from such Restricted Investment is attributable
to Allowable Securities.
 
  "Exchange Act" means the Securities Exchange Act of 1934, as amended.
 
  "Indebtedness" is defined to mean (without duplication), with respect to any
Person, any indebtedness, secured or unsecured, contingent or otherwise, which
is for borrowed money (whether or not the recourse of the lender is to the
whole of the assets of such Person or only to a portion thereof), or evidenced
by bonds, notes, debentures or similar instruments or representing the balance
deferred and unpaid of the purchase price of any property (excluding, without
limitation, any balances that constitute subscriber advance payments and
deposits, accounts payable or trade payables, and other accrued liabilities
arising in the ordinary course of business) if and to the extent any of the
foregoing indebtedness would appear as a liability upon a balance sheet of such
Person prepared in accordance with generally accepted accounting principles,
and shall also include, to the extent not otherwise included (i) any
Capitalized Lease Obligations, (ii) obligations secured by a lien to which the
property or assets owned or held by such Person is subject, whether or not the
obligation or obligations secured thereby shall have been assumed, (iii)
guaranties of items of other Persons which would be included within this
definition for such other Persons (whether or not such items would appear upon
the balance sheet of the guarantor), (iv) in the case of Adelphia, Preferred
Stock of its Restricted Subsidiaries and (v) obligations of any such Person
under any Interest Rate Agreement applicable to any of the foregoing.
Notwithstanding the foregoing, Indebtedness shall not include any interest or
accrued interest until due and payable.
 
  "Initial Investment" means the Restricted Investment in a Person made by
Adelphia or a Restricted Subsidiary that first results in such Person becoming
an Unrestricted Subsidiary or Affiliate of Adelphia, except that in the case of
Olympus, "Initial Investment" shall mean any Restricted Investment made in
Olympus since the date of the Indenture, but only to the extent that such
Restricted Investment when aggregated with the other Restricted Investments
made in Olympus since such date does not exceed $25,000,000.
 
  "Interest Rate Agreement" means, for any Person, any interest rate swap
agreement, interest rate cap agreement, interest rate collar agreement or other
similar agreement designed to protect the party indicated therein against
fluctuations in interest rates.
 
  "Investment Grade Senior Debt" means, with respect to any Person,
Indebtedness of such Person which has been rated with an investment grade
rating by Moody's or Standard & Poor's Corporation.
 
  "Leverage Ratio" is defined as the ratio of (i) the outstanding Indebtedness
of a Person and its Subsidiaries (or in the case of Adelphia, its Restricted
Subsidiaries) divided by (ii) the Annualized Pro Forma EBITDA of such Person.
 
  "Lien" means with respect to any property or assets of Adelphia (it being
understood that for purposes of this definition property or assets of Adelphia
do not include property or assets of any Subsidiary of Adelphia) any mortgage
or deed of trust, pledge, hypothecation, assignment, deposit arrangement,
security interest, lien, charge, easement (other than any easement not
materially impairing usefulness or marketability), encumbrance, preference,
priority, or other security agreement or preferential arrangement of any kind
or nature whatsoever on or with respect to such property or assets (including
without limitation,
 
                                       30
<PAGE>
 
any Capitalized Lease Obligation, conditional sale, or other title retention
agreement having substantially the same economic effect as any of the
foregoing) except for (i) liens for taxes, assessments or governmental charges
or levies on property if the same shall not at the time be delinquent or
thereafter can be paid without penalty, or are being contested in good faith
and by appropriate proceedings; (ii) liens imposed by law, such as carriers',
warehousemen's and mechanics' liens and other similar liens arising in the
ordinary course of business which secure payment of obligations not more than
sixty (60) days past due or obligations that are being contested in good faith
and by appropriate proceedings; (iii) other liens incidental to the conduct of
its business or the ownership of its property and assets which were not
incurred in connection with the borrowing of money or the obtaining of advances
or credit and which do not in the aggregate materially detract from the value
of its property or assets or materially impair the use thereof in the operation
of its business; (iv) utility easements, building restrictions and such other
encumbrances or charges against real property as are of a nature generally
existing with respect to properties of a similar character; or (v) liens
arising upon entry of a confession of judgment in Pennsylvania courts in
connection with borrowings not in excess of $1,000,000 in aggregate.
 
  "Permitted Investments" means, for any Person, Restricted Investments made on
or after the date of the Indenture, consisting of (i) advances for less than
one year issued in the ordinary course of business for working capital purposes
or for the purchase of property, plant and equipment in an amount not to exceed
$5,000,000 in the aggregate outstanding, (ii) with respect to a Restricted
Investment in Olympus, $25,000,000 plus the aggregate amount of cash income
received by Adelphia from Olympus, minus the aggregate amount of all Restricted
Investments made since the date of the Indenture, with respect to Olympus,
(iii) $20,000,000 plus the cash proceeds from the sale or redemption of, or
income from, any Restricted Investments made on or after the date of the
Indenture, minus the aggregate amount of all Restricted Investments (excluding
Restricted Investments made with respect to Olympus) since the date of the
Indenture, (iv) non-cash Restricted Investments made with the non-cash proceeds
from the sale or redemption of, or income from, any Restricted Investments, or
(v) an amount which, at the time of such Restricted Investment, does not exceed
the amount of Restricted Payments that could then be made by Adelphia and its
Restricted Subsidiaries under the covenant set forth under "Limitations on
Restricted Payments"; provided further that no Restricted Investments may be
made under subsections (ii), (iii), (iv) or (v) of this paragraph unless after
giving pro forma effect to such Restricted Investment Adelphia could incur $1
of debt under the first paragraph of the covenant set forth under "Limitation
on Indebtedness."
 
  "Permitted Refinancing Indebtedness" means any renewals, extensions,
substitutions, refinancings or replacements of any Indebtedness, including any
successive extensions, renewals, substitutions, refinancings or replacements so
long as (i) the aggregate amount of Indebtedness represented thereby is not
increased by such renewal, extension, substitution, refinancing or replacement,
(ii) in the case of Indebtedness of Adelphia, the average life and the date
such Indebtedness is scheduled to mature is not shortened and (iii) in the case
of Indebtedness of Adelphia, the new Indebtedness shall not be senior in right
of payment to the Indebtedness that is being extended, renewed, substituted,
refinanced or replaced.
 
  "Preferred Stock" means any Capital Stock of a Person, however designated,
which entitles the holder thereof to a preference with respect to dividends,
distributions or liquidation proceeds of such Person over the holders of other
Capital Stock issued by such Person.
 
  "Pro Forma EBITDA" means for any Person, for any period, the EBITDA of such
Person as determined on a consolidated basis in accordance with generally
accepted accounting principles consistently applied after giving effect to the
following: (i) if, during or after such period, such Person or any of its
Subsidiaries shall have made any Asset Sale, Pro Forma EBITDA of such Person
and its Subsidiaries for such period shall be reduced by an amount equal to the
Pro Forma EBITDA (if positive) directly attributable to the assets which are
the subject of such Asset Sale for the period or increased by an amount equal
to the Pro Forma EBITDA (if negative) directly attributable thereto for such
period and (ii) if, during or after such period, such Person or any of its
Subsidiaries completes an acquisition of any Person or business which
immediately after such
 
                                       31
<PAGE>
 
acquisition is a Subsidiary of such Person or whose assets are held directly by
such Person or a Subsidiary of such Person, Pro Forma EBITDA shall be computed
so as to give pro forma effect to the acquisition of such Person or business;
and provided further that, with respect to Adelphia, all of the foregoing
references to "Subsidiary" or "Subsidiaries" shall be deemed to refer only to a
"Restricted Subsidiary" or "Restricted Subsidiaries" of Adelphia.
 
  "Rating Date" means the date which is 90 days prior to the earlier of (i) a
Change of Control and (ii) public notice of the occurrence of a Change of
Control or of the intention of Adelphia to effect a Change of Control.
 
  "Rating Decline" means the occurrence of the following on, or within 90 days
after, the date of public notice of the occurrence of a Change of Control or of
the intention by Adelphia to effect a Change of Control (which period shall be
extended so long as the rating of the Notes is under publicly announced
consideration for possible downgrade by Moody's or Standard & Poor's
Corporation): (a) in the event the Notes are rated by either Moody's or
Standard & Poor's Corporation on the Rating Date as Investment Grade Senior
Debt, the rating of the Notes by both Moody's and Standard & Poor's Corporation
shall be below Investment Grade Senior Debt; or (b) in the event the Notes are
rated below Investment Grade Senior Debt by both Moody's and Standard & Poor's
Corporation on the Rating Date, the rating of the Notes by either Moody's or
Standard and Poor's Corporation shall be decreased by one or more gradations
(including gradations within rating categories as well as between rating
categories).
 
  "Redeemable Dividend" means, for any dividend with regard to Redeemable
Stock, the quotient of the dividend divided by the difference between one and
the maximum statutory federal income tax rate (expressed as a decimal number
between 1 and 0) then applicable to the issuer of such Redeemable Stock.
 
  "Redeemable Stock" means, with respect to any Person, any Capital Stock that
by its terms or otherwise is required to be redeemed or is redeemable at the
option of the holder at any time prior to the maturity of the Debentures.
 
  "Restricted Investment" means any advance, loan, account receivable (other
than an account receivable arising in the ordinary course of business), or
other extension of credit (excluding, however, accrued and unpaid interest in
respect of any advance, loan or other extension of credit) or any capital
contribution to (by means of transfers of property to others, payments for
property or services for the account or use of others, or otherwise), any
purchase or ownership of any stocks, bonds, notes, debentures or other
securities (including, without limitation, any interests in any partnership or
joint venture) of, or any bank accounts with or guarantee of any Indebtedness
or other obligations of, any Unrestricted Subsidiary or Affiliate of Adelphia.
 
  "Restricted Payment" means (i) any dividend or distribution (whether made in
cash, property or securities), on or with respect to any shares of Capital
Stock of Adelphia or Capital Stock of any Subsidiary which is consolidated with
Adelphia in accordance with generally accepted accounting principles
consistently applied, except for any dividend or distribution which is made
solely to Adelphia or another Subsidiary or dividends or distributions payable
solely in shares of Common Stock of Adelphia, or (ii) any redemption,
repurchase, retirement or other direct or indirect acquisition of (a)
Indebtedness of Adelphia which is subordinate in right of payment to the Notes,
except, within one year of or on the original maturity date (August 15, 1996)
of Adelphia's 13% Senior Subordinated Notes Due 1996, without regard to any
subsequent extension of such maturity date, or prior to such original maturity
date (August 15, 1996) by exchange for or out of the proceeds of the
substantially concurrent issuance of Permitted Refinancing Indebtedness or from
the proceeds of a sale of Capital Stock by Adelphia, or (b) shares of Capital
Stock of Adelphia or any warrants, rights or options to directly or indirectly
purchase or acquire any such Capital Stock of Adelphia or any securities
exchangeable for or convertible into any such shares, other than options issued
or shares purchased or granted under Adelphia's Stock Option Plan of 1986 or
Adelphia's Restricted Stock Bonus Plan,
 
                                       32
<PAGE>
 
from any employee of Adelphia or any of its Subsidiaries who, together with any
Person that, directly or indirectly, controls (other than by virtue of being
directly or indirectly the employer of such employee), is controlled by or is
under common control with such employee, owns less than 1% of the outstanding
Capital Stock of Adelphia, except for the purchase, redemption, retirement or
other acquisition of any shares of Adelphia's Capital Stock by exchange for, or
out of the proceeds of the substantially concurrent sale of, other shares of
its Capital Stock other than any capital stock which, by its terms (or by the
terms of any security into which it is convertible or for which it is
exchangeable), or upon the happening of any event, matures or is mandatorily
redeemable, pursuant to a sinking fund obligation or otherwise, or redeemable
at the option of the holder thereof, in whole or in part, on or prior to
February 15, 2004.
 
  "Restricted Subsidiary" means (a) any Subsidiary of Adelphia, whether
existing on or after the date of the Indenture, unless such Subsidiary is an
Unrestricted Subsidiary or shall have been classified as an Unrestricted
Subsidiary by a resolution adopted by the Board of Directors of Adelphia and
(b) an Unrestricted Subsidiary which is reclassified as a Restricted Subsidiary
by a resolution adopted by the Board of Directors of Adelphia, provided that on
and after the date of such reclassification such Unrestricted Subsidiary shall
not incur Indebtedness other than that permitted to be incurred by a Restricted
Subsidiary under the provisions of the Indenture.
 
  "Rigas Family" means collectively John J. Rigas and members of his immediate
family, any of their respective spouses, estates, lineal descendants, heirs,
executors, personal representatives, administrators, trusts for any of their
benefit and charitable foundations to which shares of Adelphia's Capital Stock
beneficially owned by any of the foregoing have been transferred.
 
  "Strategic Equity Investor" means, with respect to any sale of the Company's
Capital Stock, any Person engaged in the telecommunications business which,
both as of the Trading Day, with respect to any class of such Person's Capital
Stock, immediately before the day of such sale and the Trading Day, with
respect to any class of such Person's Capital Stock, immediately after the day
of such sale, has a Total Market Capitalization of at least $2 billion and the
long-term senior debt of which is rated BBB- or above by Standard & Poor's
Corporation and Baa3 or above by Moody's, after giving effect to such Person's
purchase of the Company's Capital Stock on a pro forma basis. In calculating
Total Market Capitalization for the purpose of this definition, the
consolidated Indebtedness of such Person, solely when calculated as of the
Trading Day, with respect to any class of such Person's Capital Stock,
immediately after the day of such sale, will be calculated after giving effect
to such sale (including any Indebtedness incurred in connection with such sale)
and the average Closing Price of the Common Stock of such Person, solely when
calculated as of the Trading Day, with respect to any class of such Person's
Capital Stock, immediately after the day of such sale, will be deemed to be the
Closing Price of such Common Stock on such Trading Day, subject to the last
sentence of the definition of "Total Market Capitalization."
 
  "Subsidiary" of any specified Person means any corporation, partnership,
joint venture, association or other business entity, whether now existing or
hereafter organized or acquired, (i) in the case of a corporation, of which
more than 50% of the total voting power of the Capital Stock entitled (without
regard to the occurrence of any contingency) to vote in the election of
directors, officers or trustees thereof is held by such first-named Person or
any of its Subsidiaries; or (ii) in the case of a partnership, joint venture,
association or other business entity, with respect to which such first-named
Person or any of its Subsidiaries has the power to direct or cause the
direction of the management and policies of such entity by contract or
otherwise, if in accordance with generally accepted accounting principles such
entity is consolidated with the first-named Person for financial statement
purposes.
 
  "Total Market Capitalization" of any Person means, as of any day of
determination (and as modified for purposes of the definition of "Strategic
Equity Investor"), the sum of (1) the consolidated Indebtedness of such Person
and its Subsidiaries on such day, plus (2) the product of (i) the aggregate
number of outstanding primary shares of Common Stock of such Person on such day
(which shall not include any options or warrants on, or securities convertible
or exchangeable into, shares of Common Stock of such Person) and
 
                                       33
<PAGE>
 
(ii) the average Closing Price of such Common Stock over the 20 consecutive
Trading Days immediately preceding such day, plus (3) the liquidation value of
any outstanding shares of Preferred Stock of such Person on such day. If no
such Closing Price exists with respect to shares of any such class, the value
of such shares for purposes of clause (2) of the preceding sentence shall be
determined by the Company's Board of Directors in good faith and evidenced by a
resolution of the Board of Directors filed with the Trustee.
 
  "Trading Day" means, with respect to a security listed or admitted to trading
on a securities exchange or automated quotation system, a day on which such
exchange or system is open for a full day of trading, and with respect to a
security not so listed or admitted to trading, a day on which such security has
traded at least once.
 
  "Unrestricted Subsidiary" means (a) any Subsidiary of an Unrestricted
Subsidiary and (b) any Subsidiary of Adelphia which is classified after the
date of the Indenture as an Unrestricted Subsidiary by a resolution adopted by
the Board of Directors of Adelphia; provided that a Subsidiary organized or
acquired after the date of the Indenture may be so classified as an
Unrestricted Subsidiary only if immediately after the date of such
classification, any investment by Adelphia and its Restricted Subsidiaries in
such Subsidiary made at the time of the organization or acquisition of such
Subsidiary would be a Restricted Investment permissible under the Indenture.
The Trustee shall be given prompt notice by Adelphia of each resolution adopted
by its Board of Directors under this provision, together with a copy of each
such resolution adopted.
 
SUBORDINATION TO SUBSIDIARY DEBT
 
  All liabilities of Adelphia's subsidiaries will be effectively senior in
right of payment to the Notes. As of December 31, 1993, the total indebtedness
of such subsidiaries to banks and institutions, on a consolidated basis,
aggregated $919,275,000.
 
COVENANTS
 
  The Indenture will contain, among others, the following covenants. Except as
otherwise specified, all of the covenants described below will appear in the
Indenture.
 
  Limitation on Indebtedness. The Indenture will provide that Adelphia will
not, and will not permit any Restricted Subsidiary to, directly or indirectly,
create, incur, issue, assume or become liable for, contingently or otherwise
(collectively an "incurrence"), any Indebtedness (other than the Notes)
unless, after giving effect to such incurrence on a pro forma basis,
Indebtedness of Adelphia and its Restricted Subsidiaries, on a consolidated
basis, shall not be more than the product of the Annualized Pro Forma EBITDA
for the latest fiscal quarter preceding such incurrence for which financial
statements are available, multiplied by 8.75.
 
  Notwithstanding the above, the Indenture will not limit the incurrence of
Indebtedness which is incurred by Adelphia or its Restricted Subsidiaries for
working capital purposes or capital expenditures with respect to plant,
property and equipment of Adelphia and its Restricted Subsidiaries in an
aggregate amount not to exceed $50,000,000. Further, the Indenture will not
limit Permitted Refinancing Indebtedness, subject to the provisions of the
covenant set forth under "Limitation on Restricted Payments."
 
  Limitation on Restricted Payments. The Indenture will provide that, so long
as any of the Notes remain outstanding, Adelphia shall not make, and shall not
permit any Restricted Subsidiary to make, any Restricted Payment (as defined
above) if (a) at the time of such proposed Restricted Payment, a Default or
Event of Default shall have occurred and be continuing or shall occur as a
consequence of such Restricted Payment, or (b) immediately after giving effect
to any such Restricted Payment, the aggregate of all Restricted Payments which
shall have been made on or after January 1, 1993 (the amount of any Restricted
Payment, if other than cash, to be based upon fair market value as determined
in good faith by Adelphia's Board of Directors whose determination shall be
conclusive) would exceed an amount equal to the greater of (i) the
 
                                       34
<PAGE>
 
sum of $5,000,000 or (ii) the difference between (a) the Cumulative Credit (as
defined above) and (b) the sum of the aggregate amount of all Restricted
Payments, and all Permitted Investments made pursuant to clause (v) of the
definition of "Permitted Investments," made on or after January 1, 1993 plus
1.2 times Cumulative Interest Expense (as defined above).
 
  Mergers and Consolidations. The Indenture will provide that Adelphia may not
consolidate with, merge with or into, or transfer all or substantially all of
its assets (as an entirety or substantially as an entirety in one transaction
or a series of related transactions), to any Person unless: (i) Adelphia shall
be the continuing Person, or the Person (if other than Adelphia) formed by such
consolidation or into which Adelphia is merged or to which the properties and
assets of Adelphia are transferred shall be a corporation organized and
existing under the laws of the United States or any State thereof or the
District of Columbia and shall expressly assume, by a supplemental indenture,
executed and delivered to the Trustee, in form satisfactory to the Trustee, all
of the obligations of Adelphia under the Notes and the Indenture, and the
obligations under the Indenture shall remain in full force and effect; (ii)
immediately before and immediately after giving effect to such transaction, no
Default or Event of Default shall have occurred and be continuing; and (iii)
immediately after giving effect to such transaction on a pro forma basis for
the most recent quarter, the pro forma Consolidated Fixed Charge Ratio of the
surviving entity shall be at least 1:1 provided that, if the Consolidated Fixed
Charge Ratio of Adelphia for the most recent quarter preceding such transaction
is within the range set forth in Column A below, then the pro forma
Consolidated Fixed Charge Ratio of the surviving entity after giving effect to
such transaction shall be at least equal to the greater of the percentage of
the Consolidated Fixed Charge Ratio of Adelphia for the most recent quarter
preceding such transaction set forth in Column B or the ratio set forth in
Column C below:
 
<TABLE>
      <S>                                 <C>                          <C>
               A                            B                            C
             -----                        -----                        ------
      1.1111:1 to 1.4999:1                 90%                         1.00:1
         1.5 and higher                    80%                         1.35:1
</TABLE>
 
and provided, further, that if the pro forma Consolidated Fixed Charge Ratio of
the surviving entity is 2:1 or more, the calculation in the preceding proviso
shall be inapplicable and such transaction shall be deemed to have complied
with the requirements of such proviso.
 
  In connection with any consolidation, merger or transfer contemplated by this
provision, Adelphia shall deliver, or cause to be delivered, to the Trustee, in
form and substance reasonably satisfactory to the Trustee, an Officers'
Certificate and an Opinion of Counsel, each stating that such consolidation,
merger or transfer and the supplemental indenture in respect thereto comply
with this provision and that all conditions precedent herein provided for
relating to such transaction or transactions have been complied with.
 
  Limitations on Investment in Affiliates and Unrestricted Subsidiaries. After
the date of the Indenture, Adelphia may not, nor will Adelphia allow any
Restricted Subsidiary to, make a Restricted Investment other than by way of
Permitted Investments unless pro forma for such Restricted Investment the
Leverage Ratio of Adelphia does not exceed 7.75:1.
 
  Covenant to Secure Notes Equally. The Indenture will provide that except for
Liens created or assumed by Adelphia in connection with the acquisition of real
property or equipment to be used by Adelphia in the operation of its business
which do not secure Indebtedness in excess of the purchase price of such real
property or equipment, Adelphia covenants that, if it shall create or assume
any Lien upon any of its property or assets, whether now owned or hereafter
acquired, it will make or cause to be made effective provisions whereby the
Notes will be secured by such Lien equally and ratably with all other
Indebtedness of Adelphia secured by such Lien, as long as any such other
Indebtedness of Adelphia shall be so secured. The restriction imposed by this
covenant shall not apply with respect to a Lien, including a pledge of Capital
Stock of a Subsidiary or an Affiliate, to secure Indebtedness which is an
obligation of such Subsidiary or Affiliate and not an obligation of Adelphia.
 
                                       35
<PAGE>
 
  Limitation on Transactions with Affiliates. The Indenture will provide that
Adelphia will not, and will not permit any Restricted Subsidiary to, engage in
any transaction with any Affiliate upon terms which would be any less favorable
than those obtainable by Adelphia or a Restricted Subsidiary in a comparable
arm's-length transaction with a person which is not an Affiliate. The Indenture
will provide that Adelphia will not, and will not permit any Restricted
Subsidiary to, engage in any transaction (or series of related transactions)
involving in the aggregate $1,000,000 or more with any Affiliate except for (i)
the making of any Restricted Payment, (ii) any transaction or series of
transactions between Adelphia and one or more of its Restricted Subsidiaries or
between two or more of its Restricted Subsidiaries (provided that no more than
5% of the equity interest in any of its Restricted Subsidiaries is owned by an
Affiliate), and (iii) the payment of compensation (including, without
limitation, amounts paid pursuant to employee benefit plans) for the personal
services of officers, directors and employees of Adelphia or any of its
Restricted Subsidiaries, so long as the Board of Directors of Adelphia in good
faith shall have approved the terms thereof and deemed the services theretofore
or thereafter to be performed for such compensation or fees to be fair
consideration therefor; and provided further that for any Asset Sale, or a
sale, transfer or other disposition (other than to Adelphia or any of its
Restricted Subsidiaries) of an interest in a Restricted Investment, involving
an amount greater than $25,000,000, such Asset Sale or transfer of interest in
a Restricted Investment is for fair value as determined by an opinion of a
nationally recognized investment banking firm filed with the Trustee.
Notwithstanding the foregoing, the Indenture provides that such provision will
not prohibit any such transaction which is determined by the independent
members of the Board of Directors of Adelphia, in their reasonable, good faith
judgment (as evidenced by a Board Resolution filed with the Trustee) to be (a)
in the best interests of Adelphia or such Restricted Subsidiary, and (b) upon
terms which would be obtainable by Adelphia or a Restricted Subsidiary in a
comparable arm's-length transaction with a Person which is not an Affiliate.
 
  Limitation on Sale of Assets. The Indenture provides that neither Adelphia
nor a Restricted Subsidiary shall sell an asset (including Capital Stock of
Restricted Subsidiaries) or reclassify a Restricted Subsidiary existing on the
date of the Indenture as an Unrestricted Subsidiary (a "Reclassification")
unless (a) in the case of an asset sale, (i) at least 75% of the net proceeds
received by Adelphia or such Restricted Subsidiary is in cash, cash equivalents
or common or preferred Capital Stock or debt securities issued by a Person
which has Investment Grade Senior Debt, and (ii) cash proceeds from the asset
sale are used to reduce Indebtedness and such Indebtedness reduction results in
Adelphia's Leverage Ratio being lower pro forma after such asset sale than
prior to such asset sale, or (b) in the case of an asset sale or
Reclassification, pro forma for such asset sale or Reclassification the
Indebtedness of Adelphia and its Restricted Subsidiaries, on a consolidated
basis, shall not be more than 7.75 multiplied by Annualized Pro Forma EBITDA,
provided that in no case under either clause (a) or (b) shall Adelphia
undertake an asset sale or Reclassification, if pro forma for such an asset
sale or Reclassification Adelphia and its Restricted Subsidiaries would be the
owners of fewer than 75% of the cable systems (measured on the basis of basic
subscribers as of the date of the Indenture) owned by Adelphia and its
Restricted Subsidiaries as of the date of the Indenture, provided however, that
Adelphia and its Restricted Subsidiaries may sell additional assets of up to
10% of assets held as of the date of the Indenture if the consideration
received from such sale is (i) cash which is used within 12 months to purchase
additional systems of equivalent value or (ii) other cable systems of
equivalent value.
 
  Change of Control Offer. Within 50 days of (i) the proposed occurrence of a
Change of Control or (ii) the occurrence of a Change of Control Triggering
Event, Adelphia shall notify the Trustee in writing of such proposed occurrence
or occurrence, as the case may be, and shall make an offer to purchase (the
"Change of Control Offer") the Notes at a purchase price equal to 100% of the
principal amount thereof plus any accrued and unpaid interest thereon (which
interest must be paid in cash) to the Change of Control Payment Date (as
hereinafter defined) (the "Change of Control Purchase Price") in accordance
with the procedures set forth in this covenant.
 
  Within 50 days of (i) the proposed occurrence of a Change of Control or (ii)
the occurrence of a Change of Control Triggering Event, Adelphia also shall (a)
cause a notice of the Change of Control Offer to be sent
 
                                       36
<PAGE>
 
at least once to the Dow Jones News Service or similar business news service in
the United States and (b) send by first-class mail, postage prepaid, to the
Trustee and to each holder of the Notes, at his address appearing in the
register of the Notes maintained by the Registrar, a notice stating:
 
  (1) that the Change of Control Offer is being made pursuant to this
      covenant and that all Notes tendered will be accepted for payment,
      provided that a Change of Control Triggering Event has occurred and
      otherwise subject to the terms and conditions set forth herein;
 
  (2) the Change of Control Purchase Price and the purchase date (which
      shall be a Business Day no earlier than 50 days from the date such
      notice is mailed and no later than 15 days after the date of the
      corresponding Change of Control Triggering Event) (the "Change of
      Control Payment Date");
 
  (3) that any Note not tendered will continue to accrue interest;
 
  (4) that, unless Adelphia defaults in the payment of the Change of Control
      Purchase Price, any Notes accepted for payment pursuant to the Change
      of Control Offer shall cease to accrue interest after the Change of
      Control Payment Date;
 
  (5) that holders accepting the offer to have their Notes purchased
      pursuant to a Change of Control Offer will be required to surrender
      the Notes to the Paying Agent at the address specified in the notice
      prior to the close of business on the Business Day preceding the
      Change of Control Payment Date;
 
  (6) that holders will be entitled to withdraw their acceptance if the
      Paying Agent receives, not later than the close of business on the
      third Business Day preceding the Change of Control Payment Date, a
      telegram, telex, facsimile transmission or letter setting forth the
      name of the holder, the principal amount of the Notes delivered for
      purchase, and a statement that such holder is withdrawing his election
      to have such Notes purchased;
 
  (7) that holders whose Notes are being purchased only in part will be
      issued new Notes equal in principal amount to the unpurchased portion
      of the Notes surrendered; and
 
  (8) any other procedures that a holder must follow to accept a Change of
      Control Offer or effect withdrawal of such acceptance.
 
  Notwithstanding any other provision of this covenant, in the case of a notice
of a Change of Control Offer that is being furnished by Adelphia with respect
to a proposed Change of Control that has not yet actually occurred, the Company
may specify in such notice that holders of the Notes shall be required to
notify Adelphia, by a date not later than the date (the "Proposed Change of
Control Response Date") which is 30 days from the date of such notice, as to
whether such holders will tender their Notes for payment pursuant to the Change
of Control Offer and to notify Adelphia of the principal amount of such Notes
to be so tendered (with the failure of any holder to so notify Adelphia within
such 30-day period to be deemed an election of such holder not to accept such
Change of Control Offer). In such event, Adelphia shall have the option, to be
exercised by a subsequent written notice to be sent, no later than 15 days
after the Proposed Change of Control Response Date, to the same Persons to whom
the original notice of the Change of Control Offer was sent, to cancel or
otherwise effect the termination of the proposed Change of Control and to
rescind the related Change of Control Offer, in which case the then outstanding
Change of Control Offer shall be deemed to be null and void and of no further
effect.
 
  On the Change of Control Payment Date, Adelphia shall (a) accept for payment
Notes or portions thereof tendered pursuant to the Change of Control Offer, (b)
deposit with the Paying Agent money sufficient to pay the Change of Control
Purchase Price of all Notes or portions thereof so tendered and (c) deliver or
cause to be delivered to the Trustee Notes so accepted together with an
Officers' Certificate stating the Notes or portions thereof tendered to
Adelphia. The Paying Agent shall promptly mail to each holder of Notes so
 
                                       37
<PAGE>
 
accepted payment in an amount equal to the Change of Control Purchase Price for
such Notes, and the Trustee shall promptly authenticate and mail to such holder
a new Note equal in principal amount to any unpurchased portion of the Notes
surrendered.
 
  There shall be no purchase of any Notes pursuant to this covenant if there
has occurred (prior to, on or after, as the case may be, the tender of such
Notes pursuant to the Change of Control Offer, by the holders of such Notes)
and is continuing an Event of Default. The Paying Agent will promptly return to
the respective holders thereof any Notes (a) the tender of which has been
withdrawn in compliance with the Indenture or (b) held by it during the
continuance of an Event of Default (other than a default in the payment of the
Change of Control Purchase Price with respect to such Notes).
 
  Because a "Change of Control" for purposes of this covenant is defined in
terms of "beneficial ownership" (as defined in Rule 13d-3 under the Exchange
Act) of voting power, there may be circumstances in which the Rigas Family
could beneficially own (for purposes of Rule 13d-3) more than 35% of the
outstanding voting Capital Stock of Adelphia through options, warrants or other
purchase rights while directly holding 35% or less of the total voting power
required to elect or designate for election a majority of Adelphia's Board of
Directors, without a Change of Control Triggering Event occurring. Further, a
change in the composition of the Board of Directors of Adelphia could occur
without the occurrence of a Change of Control Triggering Event if either the
election or the nomination of the new directors was approved by two-thirds of
the continuing directors or by the Rigas Family and its Affiliates. See
"Certain Definitions--Change of Control."
 
  The indentures for the 12 1/2% Notes, the 11 7/8% Debentures, the 9 7/8%
Debentures and the 10 1/4% Notes, which together represent outstanding
indebtedness in the aggregate principal amount of $765,000,000, provide that
Adelphia must make an offer to purchase such Notes and Debentures,
respectively, at a purchase price equal to 100% of the principal amount
thereof, plus any accrued but unpaid interest thereon, in the event of
circumstances identical to those which trigger a Change of Control Offer under
this covenant. In addition, the credit agreements of Adelphia's subsidiaries
generally contain provisions under which circumstances that would trigger a
Change of Control Offer under this covenant would constitute an event of
default under such credit agreements. In the event that Adelphia is required to
purchase 12 1/2% Notes, 11 7/8% Debentures, 9 7/8% Debentures, the 10 1/4%
Notes and Notes in accordance with such provisions, and the indebtedness under
such subsidiary credit agreements were to be accelerated, the source of funds
for such purchases or payments will be Adelphia's available cash, cash
generated from Adelphia's operating activities, and other sources including
borrowings, asset sales or equity sales. There can be no assurance that
sufficient funds would be available to make any required repurchases under the
Indenture and under the indentures for the 12 1/2% Notes, the 11 7/8%
Debentures, the 9 7/8% Debentures and the 10 1/4% Notes or any such required
payments under such credit agreements. Although in the past Adelphia has been
able to both refinance its indebtedness or obtain new financing, there can be
no assurance that Adelphia would be able to do so under such circumstances or
that, if Adelphia were able to do so, the terms would be favorable to Adelphia.
In the event that Adelphia is required to make a Change of Control Offer,
Adelphia will comply with all applicable tender offer rules including Rule
14e-1 under the Exchange Act, to the extent applicable.
 
EVENTS OF DEFAULT
 
  The following events are defined in the Indenture as "Events of Default": (i)
default in payment of any principal of, or premium, if any, on the Notes; (ii)
default for 30 days in payment of any interest on the Notes; (iii) default by
Adelphia in the observance or performance of any other covenant in the Notes or
the Indenture for 60 days after written notice from the Trustee or the holders
of not less than 25% in aggregate principal amount of the Notes then
outstanding; (iv) failure to pay when due principal, interest or premium
aggregating $10,000,000 or more with respect to any Indebtedness of Adelphia or
any Restricted Subsidiary or the acceleration of any such Indebtedness which
default shall not be cured or waived, or such acceleration shall not be
rescinded or annulled, within ten days after written notice as provided in the
Indenture; (v) any final judgment or judgments for the payment of money in
excess of $10,000,000 shall be rendered against Adelphia or any Restricted
Subsidiary and shall not be discharged for any period of 60 consecutive days
 
                                       38
<PAGE>
 
during which a stay of enforcement shall not be in effect; or (vi) certain
events involving bankruptcy, insolvency or reorganization of Adelphia or any
Restricted Subsidiary with liabilities of greater than $10,000,000 under
generally accepted accounting principles as of the date of such bankruptcy,
insolvency or reorganization. The Indenture provides that the Trustee may
withhold notice to the holders of the Notes of any default (except in payment
of principal or premium, if any, or interest on the Notes) if the Trustee
considers it to be in the best interest of the holders of the Notes to do so.
 
  The Indenture will provide that if an Event of Default (other than an Event
of Default resulting from certain events of bankruptcy, insolvency or
reorganization) shall have occurred and be continuing, the Trustee or the
holders of not less than 25% in aggregate principal amount of the Notes then
outstanding may declare to be immediately due and payable the principal amount
of all the Notes then outstanding plus accrued but unpaid interest to the date
of acceleration; provided, however, that after such acceleration but before a
judgment or decree based on acceleration is obtained by the Trustee, the
holders of a majority in aggregate principal amount of outstanding Notes may,
under certain circumstances, rescind and annul such acceleration if all Events
of Default, other than the nonpayment of accelerated principal, premium or
interest, have been cured or waived as provided in the Indenture. In case an
Event of Default resulting from certain events of bankruptcy, insolvency or
reorganization shall occur, such amount with respect to all of the Notes shall
be due and payable immediately without any declaration or other act on the
part of the Trustee or the holders of Notes.
 
  The holders of a majority in principal amount of the Notes then outstanding
shall have the right to waive any existing default or compliance with any
provision of the Indenture or the Notes and to direct the time, method and
place of conducting any proceeding for any remedy available to the Trustee,
subject to certain limitations specified in the Indenture.
 
  No holder of any Note will have any right to institute any proceeding with
respect to the Indenture or for any remedy thereunder, unless such holder
shall have previously given to the Trustee written notice of a continuing
Event of Default and unless also the holders of at least 25% in aggregate
principal amount of the outstanding Notes shall have made written request and
offered reasonable indemnity to the Trustee to institute such proceeding as a
trustee, and unless the Trustee shall not have received from the holders of a
majority in aggregate principal amount of the outstanding Notes a direction
inconsistent with such request and shall have failed to institute such
proceeding within 60 days. However, such limitations do not apply to a suit
instituted by a holder of a Note for enforcement of payment of the principal
of and premium, if any, or interest on such Note on or after the respective
due dates expressed in such Note.
 
DEFEASANCE AND COVENANT DEFEASANCE
 
  The Indenture provides Adelphia may elect either (a) to defease and be
discharged from any and all obligations with respect to the Notes (except for
the obligations to register the transfer or exchange of such Notes, to replace
temporary or mutilated, destroyed, lost or stolen Notes, to maintain an office
or agency in respect of the Notes and to hold monies for payment in trust)
("defeasance") or (b) to be released from its obligations with respect to the
Notes under certain covenants contained in the Indenture and described above
under "Covenants" ("covenant defeasance"), upon the deposit with the Trustee
(or other qualifying trustee), in trust for such purpose, of money and/or U.S.
Government Obligations which through the payment of principal and interest in
accordance with their terms will provide money, in an amount sufficient to pay
the principal of, premium, if any, and interest on the Notes, on the scheduled
due dates therefor in accordance with the terms of the Indenture. Such a trust
may only be established if, among other things, Adelphia has delivered to the
Trustee an Opinion of Counsel (as specified in the Indenture) to the effect
that the holders of the Notes or persons in their positions will not recognize
income, gain or loss for federal income tax purposes as a result of such
defeasance or covenant defeasance and will be subject to federal income tax on
the same amounts, in the same manner and at the same times as would have been
the case if such defeasance or covenant defeasance had not occurred. Such
opinion, in the case of defeasance under clause (a) above, must
 
                                      39
<PAGE>
 
refer to and be based upon a private ruling of the Internal Revenue Service
concerning the Notes or a ruling of general effect published by the Internal
Revenue Service.
 
MODIFICATION OF INDENTURE
 
  From time to time, Adelphia and the Trustee may, without the consent of
holders of the Notes, amend the Indenture or the Notes or supplement the
Indenture for certain specified purposes, including providing for
uncertificated Notes in addition to certificated Notes, and curing any
ambiguity, defect or inconsistency, or making any other change that does not
materially and adversely affect the rights of any holder. The Indenture
contains provisions permitting Adelphia and the Trustee, with the consent of
holders of at least one-half in principal amount of the outstanding Notes, to
modify or supplement the Indenture or the Notes, except that no such
modification shall, without the consent of each holder affected thereby, (i)
reduce the amount of Notes whose holders must consent to an amendment,
supplement, or waiver to the Indenture or the Notes, (ii) reduce the rate of
interest, or change the time for or permissible method of any payment of
interest on any Note, (iii) reduce the principal of or premium on or change the
stated maturity of any Note, (iv) make any Note payable in money other than
that stated in the Note or change the place of payment from New York, New York,
(v) change the amount or time of any payment required by the Notes or provide
for the redemption of the Notes prior to maturity other than as stated in the
Indenture, (vi) waive a default on the payment of the principal of, interest
on, or redemption payment with respect to any Note, or (vii) take any other
action otherwise prohibited by the Indenture to be taken without the consent of
each holder affected thereby.
 
REPORTS TO HOLDERS
 
  So long as Adelphia is subject to the periodic reporting requirements of the
Exchange Act it will continue to furnish the information required thereby to
the Commission and to the holders of the Notes. The Indenture provides that
even if Adelphia is entitled under the Exchange Act not to furnish such
information to the Commission or to the holders of the Notes, it will
nonetheless continue to furnish such information to the Commission (at such
time as it would be required to file such reports under the Exchange Act) and
to the Trustee and the holders of the Notes (within 15 days thereafter as
required by the Indenture) as if it were subject to such periodic reporting
requirements.
 
COMPLIANCE CERTIFICATE
 
  Adelphia will deliver to the Trustee on or before 105 days after the end of
its fiscal year and on or before 50 days after the end of its second fiscal
quarter in each year an Officer's Certificate stating whether or not the
signers know of any Default or Event of Default that has occurred. If they do,
the certificate will describe the Default or Event of Default and its status.
 
THE TRUSTEE
 
  Bank of Montreal Trust Company is to be the Trustee under the Indenture and
has been appointed by Adelphia as Registrar and Paying Agent with regard to the
Notes. Bank of Montreal Trust Company also serves as Registrar and Paying Agent
and Trustee under the indentures with respect to the 12 1/2% Notes, the 11 7/8%
Debentures, the 9 7/8% Debentures and the 10 1/4% Notes. The Indenture provides
that, except during the continuance of an Event of Default, the Trustee will
perform only such duties as are specifically set forth in the Indenture. During
the existence of an Event of Default, the Trustee will exercise such rights and
powers vested in it under the Indenture and use the same degree of care and
skill in its exercise as a prudent person would exercise under the
circumstances in the conduct of such person's own affairs.
 
TRANSFER AND EXCHANGE
 
  Holders may transfer or exchange Notes in accordance with the Indenture. The
Registrar under such Indenture may require a holder, among other things, to
furnish appropriate endorsements and transfer documents, and to pay any taxes
and fees required by law or permitted by the Indentures.
 
                                       40
<PAGE>
 
  The registered holder of a Note may be treated as the owner of it for all
purposes.
 
REGISTRATION RIGHTS AGREEMENT
 
  Adelphia agreed pursuant to the Registration Rights Agreement for the benefit
of the holders of the Notes, that Adelphia will use its best efforts to cause
to become effective (i) a registration statement with respect to an offer to
exchange the Old Notes for an issue of senior notes (which herein have been
referred to as the New Notes) of Adelphia having terms substantially identical
to the Old Notes or (ii) a shelf registration statement with respect to the
resale of the Old Notes by the holders thereof. This Prospectus is part of the
Registration Statement filed with respect to the exchange offer referred to in
clause (i) above. Pursuant to this Prospectus and the Letter of Transmittal,
Adelphia is offering the New Notes in return for surrender of the Old Notes.
Pursuant to the Registration Rights Agreement, Adelphia has agreed that the
Exchange Offer shall remain open for not less than 30 days after the date
notice of the Exchange Offer is mailed to holders of the Old Notes, and that it
shall be consummated within 120 days after such registration statement has been
declared effective (unless the Initial Purchaser agrees to or requests an
extension of such period). For each Old Note surrendered to Adelphia under the
Exchange Offer, the holder will receive a New Note of equal principal amount.
Holders of New Notes are not entitled to any exchange rights with respect to
the New Notes. Once the Exchange Offer is consummated, Adelphia will have no
further obligations to register any of the Old Notes not tendered by the
holders (other than the Initial Purchaser) thereof.
 
  Adelphia has also agreed that, until the earlier of 180 days after the
closing of a registered Exchange Offer or December 31, 1994, it will have the
Exchange Offer registration statement remain effective and will make the
related Exchange Offer prospectus available for use upon request by broker-
dealers in connection with resales by a broker-dealer of New Notes that such
broker-dealer receives for its own account in the Exchange Offer for Old Notes
that were acquired by such broker-dealer as a result of market-making
activities or other trading activities.
 
  In the event that applicable interpretations of the staff of the Commission
do not permit Adelphia to effect the Exchange Offer, Adelphia shall, at its
cost, use its best efforts to have a shelf registration statement covering
resales of the Old Notes declared effective and kept effective until three
years after the effective date of such registration statement.
 
  The interest rate on the Old Notes was 10% prior to the date of this
Prospectus, at and from which date the interest rate on the Old Notes decreased
to 9 1/2%. The interest rate on the New Notes will be 9 1/2%. The Registration
Statement of which this Prospectus is a part was declared effiective on the
date of this Prospectus.
 
  The summary herein of the Registration Rights Agreement does not purport to
be complete and is subject to, and is qualified in its entirety by reference
to, all the provisions of the Registration Rights Agreement.
 
                                       41
<PAGE>
 
                CERTAIN UNITED STATES INCOME TAX CONSIDERATIONS
 
  The discussion set forth in this summary is based on the provisions of the
Internal Revenue Code of 1986, as amended (the "Code"), Treasury regulations
promulgated thereunder ("Treasury Regulations"), and administrative and
judicial interpretations thereof, all as in effect on the date hereof and all
of which are subject to change (possibly on a retroactive basis). Legislative,
judicial or administrative changes or interpretations may be forthcoming that
could affect the tax consequences to holders of the New Notes.
 
  This summary is for general information only and does not purport to address
all of the United States federal income tax consequences that may be applicable
to the exchange of the Old Notes for the New Notes and the ownership and
disposition of the New Notes. This discussion assumes that the Old Notes and
New Notes are held as capital assets. The tax treatment of a holder may vary
depending on the holder's particular situation. For example, certain holders,
including individual retirement and other tax-deferred accounts, insurance
companies, tax-exempt organizations, financial institutions, broker-dealers,
foreign corporations, and non-U.S. persons, may be subject to special rules not
discussed below. A ruling from the Internal Revenue Service ("IRS") on the
matters discussed below has not been requested.
 
  Thus, no assurance can be provided that the statements set forth herein would
be sustained by a court if contested by the IRS. The costs of any contest with
the IRS will be borne directly or indirectly by each holder or prospective
holder.
 
  The IRS has recently issued final regulations dealing with the inclusion of
original issue discount in income by holders of debt instruments (the
"Regulations"). The Regulations apply to debt instruments issued on or after
April 4, 1994 and to sales and exchanges that occur on or after such date.
However, taxpayers may rely on the Regulations for debt instruments issued
after December 21, 1992 and for sales and exchanges that occur after such date.
The following discussion reflects the Regulations. Holders should consult their
own tax advisors regarding the application of the Regulations to them.
 
  EACH HOLDER SHOULD CONSULT ITS OWN TAX ADVISOR WITH RESPECT TO THE UNITED
STATES FEDERAL INCOME TAX CONSEQUENCES SET FORTH BELOW AND ANY OTHER FEDERAL,
STATE, LOCAL, OR FOREIGN TAX CONSEQUENCES TO IT OF EXCHANGING THE OLD NOTES FOR
THE NEW NOTES AND HOLDING AND DISPOSING OF THE NEW NOTES.
 
EXCHANGE OFFER
   
  Because the New Notes should not be considered to differ materially either in
kind or in extent from the Old Notes, the exchange of the New Notes for the Old
Notes pursuant to the Exchange Offer should not be treated as an "exchange" for
federal income tax purposes and each New Note should be treated as a
continuation of the corresponding Old Note. As a result, holders should not
recognize gain or loss with respect to the exchange of Old Notes for New Notes.
The following discussion assumes that the exchange of the New Notes for the Old
Notes is not an "exchange" for federal income tax purposes. However, if the
date of this Prospectus is not April 27, 1994, then the Notes will be deemed to
be reissued solely to determine the yield of the Notes in order to calculate
the accrual of original issue discount. See "Original Issue Discount" below. As
used herein, the term "Note" refers both to an Old Note and a New Note received
in exchange therefor.     
 
                                       42
<PAGE>
 
ORIGINAL ISSUE DISCOUNT
 
  The following discussion is based on the Regulations. Because the Company may
issue additional Notes (the "Additional Notes") in lieu of paying cash interest
on the Notes on or prior to February 15, 1999, the Notes are issued with
original issue discount within the meaning of Section 1273 of the Code, and no
payment of interest on the Notes is treated as "qualified stated interest".
Accordingly, each holder of a Note will recognize, as ordinary income, through
the accrual of original issue discount, the full amount of interest with
respect to the Note and such holder will not recognize ordinary income upon
receipt of an Additional Note or upon a cash payment of stated interest. As
discussed below, each holder of a Note will be required to include such
original issue discount in income on a constant yield to maturity basis,
regardless of the holder's method of tax accounting.
 
  The total amount of original issue discount with respect to a Note will be
the excess of its stated redemption price at maturity over its issue price. The
issue price of a Note is the first price at which a substantial amount of the
Notes are sold to investors. The stated redemption price at maturity of a Note
is the sum of all amounts payable over the life of the Note (determined as if
all interest will be paid in cash and not in Additional Notes).
   
  Under the Regulations, the portion of original issue discount includible in
the income of a holder of a Note for any accrual period is equal to the product
of (x) the "adjusted issue price" of the Note at the beginning of the accrual
period and (y) the yield of the Note. The "adjusted issue price" of a Note is
equal to the original issue price, plus any previously accrued original issue
discount, minus any cash payments previously made on the Note or an Additional
Note issued with respect to such Note. An accrual period may be of any length
and may vary in length, provided that each accrual period is no longer than one
year and February 15 and August 15 in each year occur at the beginning or end
of an accrual period. For purposes of calculating the yield on the Notes, the
Company assumed that a registration statement with respect to an exchange offer
for the Notes or a shelf registration statement with respect to the resale of
the Notes by investors would be declared effective on April 27, 1994. Thus, the
Company's calculation of the yield of the Notes initially reflects interest
payable at 9 1/2 percent following such date. Under the Regulations, this
assumption is binding on holders of the Notes unless a holder explicitly
discloses that its determination of the yield of the Notes is different than
the Company's determination. This disclosure must be made on a statement
attached to the holder's timely filed income tax return for the taxable year
that includes the acquisition date of the Note. If, however, the date of this
Prospectus is not April 27, 1994, then solely for purposes of the accrual of
original issue discount, the yield of the Notes will be redetermined by
treating the Notes as if they were reissued on the date of this Prospectus (and
also on April 27, 1994, if the date of this Prospectus is after April 27, 1994)
for an amount equal to its adjusted issue price on such date or dates.     
 
  Original issue discount as determined above will be allocated ratably to each
day in the accrual period, and the amount includable in a holder's income
(whether such holder is on the cash or accrual method of accounting) with
respect to the Note will be the sum of the resulting daily portions of original
issue discount for each day of the taxable year on which the holder holds the
Note. The amount of original issue discount required to be accrued annually
with respect to a Note will increase each year, reflecting the compounding of
original issue discount on the Note. In addition, the amount of original issue
discount for any accrual period may be greater than the amount of cash payments
denominated as interest that are made during the accrual period. Generally, the
tax basis of a Note in the hands of the holder will be increased by the amount
of any original issue discount on the Note that is included in the holder's
income pursuant to these rules and will be decreased by the amount of any cash
payments received with respect to the Note whether such payments are
denominated as principal or interest.
 
MARKET DISCOUNT
 
  If a holder acquires a Note at a market discount (i.e., at a price less than
the stated redemption price at maturity of the Note), the Note is subject to
the market discount rules of the Code unless the market discount
 
                                       43
<PAGE>
 
is de minimis. Market discount is de minimis if it is less than one quarter of
one percent of the principal amount of the Note multiplied by the number of
complete years to maturity after the holder acquires the Note. Notes that have
more than de minimis market discount are herein referred to as "Market Discount
Notes."
 
  Any gain recognized on the maturity or disposition of a Market Discount Note
will be treated as ordinary income to the extent that such gain does not exceed
the accrued market discount on the Market Discount Note. In addition, the
holder could be required to defer the deduction of a portion of the interest
paid on any indebtedness incurred or continued to purchase a Market Discount
Note.
 
  A holder of a debt instrument acquired at a market discount may elect to
include the market discount in income as the discount thereon accrues, either
on a straight line basis or, if elected, on a constant interest rate basis. The
current inclusion election, once made, applies to all market discount
obligations acquired by such holder on or after the first day of the first
taxable year to which the election applies, and may not be revoked without the
consent of the IRS. If a holder of a Market Discount Note elects to include
market discount in income in accordance with the preceeding sentence, the
foregoing rules with respect to the recognition of ordinary income on a sale or
certain other dispositions of such Market Discount Note and the deferral of
interest deductions on indebtedness related to such Market Discount Note would
not apply.
 
AMORTIZABLE BOND PREMIUM
 
  A holder that purchases a Note for an amount in excess of its principal
amount may elect to treat such excess as "amortizable bond premium," in which
case the amount required to be included in the holder's income each year with
respect to interest on the Note will be reduced by the amount of amortizable
bond premium allocable (based on the yield to maturity of the Note) to such
year. Any election to amortize bond premium shall apply to all debt instruments
(other than debt instruments the interest on which is excludable from gross
income) held by the holder at the beginning of the first taxable year to which
the election applies or thereafter acquired by the holder, and is irrevocable
without the consent of the IRS.
 
DISPOSITION OF A NOTE OR AN ADDITIONAL NOTE
 
  In general, a holder of a Note will recognize gain or loss upon the sale,
exchange, redemption or other taxable disposition of the Note measured by the
difference between (i) the amount of cash and the fair market value of property
received and (ii) the holder's tax basis in the Note (i.e., such holder's
original purchase price as increased by any original issue discount and market
discount previously included in income by the holder and decreased by any cash
payments received with respect to the Note). If a holder has received
Additional Notes in lieu of cash payments of interest on the Note and
separately disposes of such Note or Additional Notes, the tax basis in the Note
generally will be allocated among the Note and such Additional Notes in
proportion to their respective principal amounts. Subject to the original issue
discount and market discount rules discussed above, any such gain or loss will
generally be long-term capital gain or loss, provided the Note had been held
for more than one year.
 
BACKUP WITHHOLDING
 
  A holder of a Note may be subject to backup withholding at the rate of 31%
with respect to interest paid on, original issue discount accrued on, and gross
proceeds of a sale of, the Note, unless such holder (a) is a corporation or
comes within certain other exempt categories and, when required, demonstrates
this fact or (b) provides a correct taxpayer identification number, certifies
as to no loss of exemption from backup withholding and otherwise complies with
applicable requirements of the backup withholding rules. A holder of a Note who
does not provide the Company with its correct taxpayer identification number
may be subject to penalties imposed by the IRS. Any amount withheld under these
rules will be creditable against the holder's federal income tax liability.
 
  The Company will report to the holders of the Notes and the IRS the amount of
any "reportable payments" (including any interest paid and any original issue
discount accrued on the Notes) and any amount withheld with respect to the
holders during the calendar year.
 
                                       44
<PAGE>
 
  THE FOREGOING DISCUSSION OF CERTAIN FEDERAL INCOME TAX CONSEQUENCES IS FOR
GENERAL INFORMATION ONLY AND IS NOT TAX ADVICE. ACCORDINGLY, EACH HOLDER OF
NOTES SHOULD CONSULT ITS OWN TAX ADVISOR WITH RESPECT TO THE TAX CONSEQUENCES
TO IT OF THE ACQUISITION, OWNERSHIP AND DISPOSITION OF THE NOTES, INCLUDING THE
APPLICABILITY AND EFFECT OF STATE, LOCAL, FOREIGN AND OTHER TAX LAWS.
 
                              PLAN OF DISTRIBUTION
 
  Each broker-dealer that receives New Notes for its own account pursuant to
the Exchange Offer must acknowledge that it will deliver a prospectus in
connection with any resale of such New Notes. This Prospectus, as it may be
amended or supplemented from time to time, may be used by a broker-dealer in
connection with resales of New Notes received in exchange for Old Notes where
such Old Notes were acquired as a result of market-making activities or other
trading activities. The Company has agreed that, until the earlier of 180 days
after the Expiration Date or December 31, 1994 (the "Resale Prospectus
Period"), it will make this Prospectus, as amended or supplemented, available
to any broker-dealer for use in connection with any such resale.
 
  The Company will not receive any proceeds from any sale of New Notes by
broker-dealers. New Notes received by broker-dealers for their own account
pursuant to the Exchange Offer may be sold from time to time in one or more
transactions in the over-the-counter market, in negotiated transactions,
through the writing of options on the New Notes or a combination of such
methods of resale, at market prices prevailing at the time of resale, at prices
related to such prevailing market prices or negotiated prices. Any such resale
may be made directly to purchasers or to or through brokers or dealers who may
receive compensation in the form of commissions or concessions from any such
broker-dealer and/or the purchasers of any such New Notes. Any broker-dealer
that resells New Notes that were received by it for its own account pursuant to
the Exchange Offer and any broker or dealer that participates in an
distribution of such New Notes may be deemed to be an "underwriter" within the
meaning of the Securities Act and any profit on any such resale of New Notes
and any commissions or concessions received by any such persons may be deemed
to be underwriting compensation under the Securities Act. The Letter of
Transmittal states that by acknowledging that it will deliver and by delivering
a prospectus, a broker-dealer will not be deemed to admit that it is an
"underwriter" within the meaning of the Securities Act.
 
  During the Resale Prospectus Period, the Company will promptly send
additional copies of this Prospectus and any amendment or supplement to this
Prospectus to any broker-dealer that requests such documents in the Letter of
Transmittal. The Company has agreed to pay all expenses incident to the
Exchange Offer other than commissions or concessions of any brokers or dealers
and will indemnify the holders of the Notes (including any broker-dealers)
against certain liabilities, including liabilities under the Securities Act.
 
                                 LEGAL MATTERS
 
  The legality of the New Notes offered hereby will be passed upon for Adelphia
by Buchanan Ingersoll Professional Corporation, Pittsburgh, Pennsylvania.
 
                                    EXPERTS
 
  The consolidated financial statements and financial statement schedules of
the Company and its subsidiaries as of March 31, 1992 and 1993, and for each of
the three years in the period ended March 31, 1993, and the consolidated
financial statements of Olympus Communications, L.P. and its subsidiaries as of
December 31, 1991 and 1992, and for each of the three years in the period ended
December 31, 1992 that are incorporated in this Prospectus by reference have
been audited by Deloitte & Touche, independent auditors, as stated in their
reports incorporated by reference herein and have been incorporated herein in
reliance upon the reports of such firm given upon their authority as experts in
accounting and auditing.
 
                                       45
<PAGE>
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
 
   NO PERSON HAS BEEN AUTHORIZED TO GIVE ANY INFORMATION OR TO MAKE ANY REPRE-
SENTATIONS OTHER THAN THOSE CONTAINED IN THIS PROSPECTUS OR THE ACCOMPANYING
LETTER OF TRANSMITTAL AND, IF GIVEN OR MADE, SUCH INFORMATION OR REPRESENTA-
TIONS MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY ADELPHIA. NEITHER
THE DELIVERY OF THIS PROSPECTUS OR THE ACCOMPANYING LETTER OF TRANSMITTAL NOR
ANY SALE MADE HEREUNDER SHALL UNDER ANY CIRCUMSTANCES CREATE ANY IMPLICATION
THAT THERE HAS BEEN NO CHANGE IN THE AFFAIRS OF ADELPHIA SINCE THE DATE HERE-
OF. NEITHER THIS PROSPECTUS NOR THE ACCOMPANYING LETTER OF TRANSMITTAL CONSTI-
TUTES AN OFFER OR SOLICITATION BY ANYONE IN ANY JURISDICTION IN WHICH SUCH OF-
FER OR SOLICITATION IS NOT AUTHORIZED OR IN WHICH THE PERSON MAKING SUCH OFFER
OR SOLICITATION IS NOT QUALIFIED TO DO SO OR TO ANYONE TO WHOM IT IS UNLAWFUL
TO MAKE SUCH OFFER OR SOLICITATION.
 
                                 ------------
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                            Page
                                                                            ----
<S>                                                                         <C>
Available Information......................................................   3
Incorporation of Certain Documents by Reference............................   3
Prospectus Summary.........................................................   5
Risk Factors...............................................................  12
Recent Development.........................................................  16
Use of Proceeds............................................................  17
The Exchange Offer.........................................................  17
Capitalization.............................................................  24
Description of New Notes...................................................  25
Certain United States Income Tax Considerations............................  42
Plan of Distribution.......................................................  45
Legal Matters..............................................................  45
Experts....................................................................  45
</TABLE>
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
 
                                 $150,000,000
                        [LOGO OF ADELPHIA COMM. CORP.]
 
                      ADELPHIA COMMUNICATIONS CORPORATION
 
                        9 1/2% SENIOR PAY-IN-KIND NOTES
                              DUE 2004, SERIES B
 
                              ------------------
 
                              P R O S P E C T U S
 
                              ------------------
 
 
                                       , 1994
 
 
- -------------------------------------------------------------------------------
- -------------------------------------------------------------------------------
<PAGE>
 
                                    PART II
 
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 20. INDEMNIFICATION OF DIRECTORS AND OFFICERS
 
  Section 145 of the Delaware General Corporation Law provides in general that
a corporation may indemnify its directors, officers, employees or agents
against expenditures (including judgments, fines, amounts paid in settlement
and attorneys' fees) made by them in connection with certain lawsuits to which
they may be made parties by reason of their being directors, officers,
employees or agents and shall so indemnify such persons against expenses
(including attorneys' fees) if they have been successful on the merits or
otherwise. The bylaws of Adelphia provide for indemnification of the officers
and directors of Adelphia to the full extent permissible under Delaware law.
 
  Adelphia's Certificate of Incorporation also provides, pursuant to Section
102(b)(7) of the Delaware General Corporation Law, that directors of Adelphia
shall not be personally liable to Adelphia or its stockholders for monetary
damages for breach of fiduciary duty as a director for acts or omissions after
July 1, 1986, provided that directors shall nonetheless be liable for breaches
of the duty of loyalty, bad faith, intentional misconduct, knowing violations
of law, unlawful distributions to stockholders, or transactions from which a
director derived an improper personal benefit.
 
ITEM 21. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES
 
  (a) The following is a complete list of Exhibits filed as part of this
Registration Statement, which are incorporated herein:
 
<TABLE>
<CAPTION>
 EXHIBIT NO.                                                      REFERENCE
 -----------                                                      ---------
 <C>     <S>                                       <C>
   4.01  Indenture, dated as of May 7, 1992,       Incorporated herein by reference is
         with respect to the Registrant's 12       Exhibit 4.03 to Registrant's Annual
         1/2% Senior Notes Due 2002                Report on Form 10-K for the fiscal year
                                                   ended March 31, 1992.
   4.02  Indenture, dated as of September 2,       Incorporated herein by reference is
         1992,                                     Exhibit 4.03 to Registration Statement
         with respect to the Registrant's 11       No. 33-52630 on Form S-1.
         7/8% Senior Debentures Due 2004
   4.03  Amended and Restated Indenture, dated     Incorporated herein by reference is
         as of May 11, 1993, with respect to       Exhibit 4.01 to Registrant's Annual
         Registrant's 9 7/8% Senior Debentures     Report on Form 10-K for the fiscal year
         Due 2005                                  ended March 31, 1993.
   4.04  Indenture, dated as of July 28, 1993,     Incorporated herein by reference is
         with respect to the Registrant's 10       Exhibit 4.01 to Registrant's Quarterly
         1/4% Senior Notes Due 2000, Series A      Report on Form 10-Q for the Quarter
         and B                                     ended June 30, 1993.
   4.05  Indenture, dated as of February 22,       Previously filed.
         1994, with respect to the Registrant's
         9 1/2% Senior Pay-In-Kind Notes Due
         2004, Series A and B
   5.01  Opinion of Buchanan Ingersoll             Previously filed.
         Professional Corporation with regard to
         the legality of the securities being
         registered
  10.01  Purchase Agreement relating to 9 1/2%     Previously filed.
         Senior Pay-In-Kind Notes Due 2004,
         Series A, by and between Adelphia
         Communications Corporation and the
         Purchaser, dated February 14, 1994
</TABLE>
 
                                      II-1
<PAGE>
 
<TABLE>
<CAPTION>
 EXHIBIT NO.                                                      REFERENCE
 -----------                                                      ---------
 <C>     <S>                                       <C>
  10.02  Registration Rights Agreement relating    Previously filed.
         to 9 1/2% Senior Pay-In-Kind Notes Due
         2004, Series A, by and between Adelphia
         Communications Corporation and the
         Purchaser, dated February 22, 1994
  12.01  Computation of Ratio of Earnings to       Previously filed.
         Fixed Charges
  23.01  Consent of Deloitte & Touche              Filed herewith.
  23.02  Consent of Buchanan Ingersoll             Previously filed.
         Professional Corporation (contained in
         its opinion filed as Exhibit 5.01
         hereto)
  24.01  Power of Attorney (appearing on the       Previously filed.
         Signature Page)
  25.01  Form T-1 Statement of Eligibility of      Previously filed.
         Trustee
  99.01  Form of Letter of Transmittal             Previously filed.
  99.02  Form of Notice of Guaranteed Delivery     Previously filed.
</TABLE>
 
  The Registrant will furnish to the Commission upon request copies of
instruments not filed herewith which authorize the issuance of long-term
obligations of Registrant not in excess of 10% of the Registrant's total assets
on a consolidated basis.
 
ITEM 22. UNDERTAKINGS
 
  Insofar as indemnification for liabilities arising under the Securities Act
may be permitted to directors, officers and controlling persons of the
Registrant pursuant to the foregoing provisions, or otherwise, the Registrant
has been advised that in the opinion of the Securities and Exchange Commission
such indemnification is against public policy as expressed in the Securities
Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
Registrant of expenses incurred or paid by a director, officer or controlling
person of the Registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the Registrant will, unless in
the opinion of its counsel the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question of
whether such indemnification by it is against public policy as expressed in the
Securities Act and will be governed by the final adjudication of such issue.
 
  The Registrant hereby undertakes to respond to requests for information that
is incorporated by reference into the prospectus pursuant to Item 4, 10(b), 11,
or 13 of this form, within one business day of receipt of such request, and to
send the incorporated documents by first class mail or other equally prompt
means. This includes information contained in documents filed subsequent to the
effective date of the registration statement through the date of responding to
the request.
 
  The Registrant hereby undertakes to supply by means of a post-effective
amendment all information concerning a transaction, and the company being
acquired involved therein, that was not the subject of and included in the
registration statement when it became effective.
 
  The undersigned Registrant hereby undertakes that:
 
  (1) For purposes of determining any liability under the Securities Act of
1933, the information omitted from the form of prospectus filed as part of a
Registration Statement in reliance upon Rule 430A and contained in the form of
prospectus filed by the Registrant pursuant to Rule 424(b)(1) or (4) or 497(h)
under the Securities Act of 1933 shall be deemed part of the Registration
Statement as of the time it was declared effective.
 
                                      II-2
<PAGE>
 
  (2) For purposes of determining any liability under the Securities Act of
1933, each post-effective amendment that contains a form of prospectus shall be
deemed to be a new Registration Statement relating to the securities offered
therein, and the offering of such securities at such time shall be deemed to be
the initial bona fide offering thereof.
 
  The undersigned Registrant hereby undertakes to the extent applicable
hereunder:
 
  (1) To file, during any period in which offers or sales are being made, a
post-effective amendment to this registrant statement:
 
    (i) To include any prospectus required by section 10(a)(3) of the Act;
 
    (ii) To reflect in the prospectus any facts or events arising after the
  effective date of the registration statement (or the most recent post-
  effective amendment thereof) which, individually or in the aggregate,
  represent a fundamental change in the information set forth in the
  registration statement;
 
    (iii) To include any material information with respect to the plan of
  distribution not previously disclosed in the registration statement or any
  material change to such information in the registration statement;
 
Provided, however, that paragraphs (1)(i) and (1)(ii) above do not apply if the
registration statement is on Form S-3 or Form S-8, and the information required
to be included in a post-effective amendment by those paragraphs is contained
in periodic reports filed by the registrant pursuant to section 13 or section
15(d) of the Securities Exchange Act of 1934 that are incorporated by reference
in the Registration Statement.
 
  (2) That, for the purpose of determining any liability under the Act, each
such post-effective amendment shall be deemed to be a new registration
statement relating to the securities offered therein, and the offering of such
securities at that time shall be deemed to be the initial bona fide offering
thereof.
 
  (3) To remove from registration by means of a post-effective amendment any of
the securities being registered which remain unsold at the termination of the
offering.
 
  The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
Registrant's annual report pursuant to section 13(a) or Section 15(d) of the
Securities Exchange Act of 1934 (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to Section 15(d) of the
Securities Exchange Act of 1934) that is incorporated by reference in the
registration statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.
 
                                      II-3
<PAGE>
 
                                   SIGNATURES
   
  Pursuant to the requirements of the Securities Act of 1933, the Registrant
has duly caused this Registration Statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Coudersport,
Commonwealth of Pennsylvania, on the 24th day of March 1994.     
 
                                        ADELPHIA COMMUNICATIONS CORPORATION
                                                   
                                          By:   /s/ Timothy J. Rigas     
                                             ----------------------------------
                                                 
                                              Timothy J. Rigas, Senior Vice
                                              President and Chief Financial
                                                      Officer     
                                                    
  Pursuant to the requirements of the Securities Act, this Amendment to the
Registration Statement has been signed by the following persons in the
capacities and on the dates indicated.     
 
          SIGNATURES                        TITLE                  DATE
 
                                 Chairman, President and           
            *                     Chief Executive Officer              
- -------------------------------
         JOHN J. RIGAS
 
                                 Senior Vice President and        
            *                    Director                              
- -------------------------------
       MICHAEL J. RIGAS
 
     /s/ Timothy J. Rigas        Senior Vice President,          
- -------------------------------  Chief  Financial Officer,    March 24, 1994
       TIMOTHY J. RIGAS          Chief  Accounting Officer,            
                                 Treasurer  and Director
 
                                 Vice President and               
            *                    Director                              
- -------------------------------
        JAMES P. RIGAS
 
                                 Vice President, Secretary            
            *                    and  Director                         
- -------------------------------
 
      DANIEL R. MILLIARD
                                 Director                          
            *                                                          
- -------------------------------
      PERRY S. PATTERSON
 
                                 Director                          
            *                                                          
- -------------------------------
        PETE J. METROS
   
*By:
                                                         
     /s/ Timothy J. Rigas                                    March 24, 1994
  ---------------------------                                      
        Timothy J.
     Rigas Attorney-
       in-Fact     
 
 
                                      II-4
<PAGE>
 
                                 EXHIBIT INDEX
 
<TABLE>
<CAPTION>
 EXHIBIT NO.                                                      REFERENCE
 -----------                                                      ---------
 <C>     <S>                                       <C>
   4.01  Indenture, dated as of May 7, 1992,       Incorporated herein by reference is
         with respect to the Registrant's 12       Exhibit 4.03 to Registrant's Annual
         1/2% Senior Notes Due 2002                Report on Form 10-K for the fiscal year
                                                   ended March 31, 1992.
   4.02  Indenture, dated as of September 2,       Incorporated herein by reference is
         1992,                                     Exhibit 4.03 to Registration Statement
         with respect to the Registrant's 11       No. 33-52630 on Form S-1.
         7/8% Senior Debentures Due 2004
   4.03  Amended and Restated Indenture, dated     Incorporated herein by reference is
         as of May 11, 1993, with respect to       Exhibit 4.01 to Registrant's Annual
         Registrant's 9 7/8% Senior Debentures     Report on Form 10-K for the fiscal year
         Due 2005                                  ended March 31, 1993.
   4.04  Indenture, dated as of July 28, 1993,     Incorporated herein by reference is
         with respect to the Registrant's 10       Exhibit 4.01 to Registrant's Quarterly
         1/4% Senior Notes Due 2000, Series A      Report on Form 10-Q for the Quarter
         and B                                     ended June 30, 1993.
   4.05  Indenture, dated as of February 22,       Previously filed.
         1994, with respect to the Registrant's
         9 1/2% Senior Pay-In-Kind Notes Due
         2004, Series A and B
   5.01  Opinion of Buchanan Ingersoll             Previously filed.
         Professional Corporation with regard to
         the legality of the securities being
         registered
  10.01  Purchase Agreement relating to 9 1/2%     Previously filed.
         Senior Pay-In-Kind Notes Due 2004,
         Series A, by and between Adelphia
         Communications Corporation and the
         Purchaser, dated February 14, 1994
  10.02  Registration Rights Agreement relating    Previously filed.
         to 9 1/2% Senior Pay-In-Kind Notes Due
         2004, Series A, by and between Adelphia
         Communications Corporation and the
         Purchaser, dated February 22, 1994
  12.01  Computation of Ratio of Earnings to       Previously filed.
         Fixed Charges
  23.01  Consent of Deloitte & Touche              Filed herewith.
  23.02  Consent of Buchanan Ingersoll             Previously filed.
         Professional Corporation (contained in
         its opinion filed as Exhibit 5.01
         hereto)
  24.01  Power of Attorney (appearing on the       Previously filed.
         Signature Page)
  25.01  Form T-1 Statement of Eligibility of      Previously filed.
         Trustee
  99.01  Form of Letter of Transmittal             Previously filed.
  99.02  Form of Notice of Guaranteed Delivery     Previously filed.
</TABLE>

<PAGE>
 
                                                                   EXHIBIT 23.01
 
INDEPENDENT AUDITORS' CONSENT
   
  We consent to the incorporation by reference in this Amendment No. 1 to
Registration Statement No. 33-52513 of Adelphia Communications Corporation on
Form S-4 of our reports dated June 25, 1993 and March 17, 1993 for Adelphia
Communications Corporation and subsidiaries and Olympus Communications, L.P.
and subsidiaries, respectively, appearing in the Annual Report on Form 10-K of
Adelphia Communications Corporation for the year ended March 31, 1993, and to
the reference to us under the heading "Experts" in the Prospectus, which is
part of this Registration Statement.     
 
DELOITTE & TOUCHE
   
March 24, 1994     
Pittsburgh, Pennsylvania


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