CABLEVISIONS SYSTEM CORP /NY
S-8 POS, 1998-04-03
CABLE & OTHER PAY TELEVISION SERVICES
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      AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON APRIL 3, 1998

                                                    Registration No. 333-5987-99
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                    ----------------------------------------
                                 POST-EFFECTIVE
                                 AMENDMENT NO. 5
                                   TO FORM S-8

                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933
                    ----------------------------------------

                         CABLEVISION SYSTEMS CORPORATION
             (Exact Name of Registrant as Specified in Its Charter)

                                    DELAWARE
         (State or Other Jurisdiction of Incorporation or Organization)

                                   11-3415180
                        (IRS Employer Identification No.)

                               ONE MEDIA CROSSWAYS
                            WOODBURY, NEW YORK 11797
                            TELEPHONE: (516) 364-8450
               (Address of Principal Executive Offices) (Zip Code)

              -----------------------------------------------------
                         CABLEVISION SYSTEMS CORPORATION
                    AMENDED AND RESTATED EMPLOYEE STOCK PLAN
                            (Full Title of the Plans)
              -----------------------------------------------------

                                 ROBERT S. LEMLE
             EXECUTIVE VICE PRESIDENT, GENERAL COUNSEL AND SECRETARY
                         CABLEVISION SYSTEMS CORPORATION
                               ONE MEDIA CROSSWAYS
                            WOODBURY, NEW YORK 11797
                     (Name and Address of Agent for Service)

                                 (516) 364-8450
          (Telephone Number, Including Area Code, of Agent for Service)

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


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





<PAGE>



                   POST-EFFECTIVE AMENDMENT NO. 5 TO FORM S-8

    INTRODUCTORY STATEMENT

    On  March  4,  1998,  CSC  Holdings,   Inc.  (formerly  Cablevision  Systems
Corporation) ("Old Cablevision")  effected a holding company  restructuring (the
"Holding   Company   Restructuring")   pursuant  to  an  Amended  and   Restated
Contribution  and  Merger  Agreement,  dated  as of June 6,  1997  (the  "Merger
Agreement") by and among Old  Cablevision,  CSC Parent  Corporation,  a Delaware
corporation (as renamed Cablevision Systems Corporation, the "Registrant"),  CSC
Merger   Corporation,   a  Delaware   corporation   ("Merger   Sub"),   and  TCI
Communications,  Inc.  Pursuant to the Merger  Agreement,  Merger Sub was merged
(the  "Merger")  with and  into Old  Cablevision,  with Old  Cablevision  as the
surviving  corporation.  Following the Merger,  Old  Cablevision was renamed CSC
Holdings, Inc.

    As a result of the Merger,  Old  Cablevision  became a direct  wholly  owned
subsidiary of the Registrant.  In addition, the Registrant changed its name from
CSC Parent Corporation to Cablevision Systems Corporation. Each share of Class A
Common  Stock,  par  value  $0.01  per  share,  of Old  Cablevision  issued  and
outstanding  was  converted  into one share of Class A Common  Stock,  par value
$0.01 per share ("Class A Common  Stock"),  of the  Registrant and each share of
Class B Common Stock,  par value $0.01 per share, of Old Cablevision  issued and
outstanding  was  converted  into and  exchanged for one share of Class B Common
Stock, par value $0.01 per share, of the Registrant.

    POST-EFFECTIVE AMENDMENT

    This post-effective  amendment is being filed pursuant to Rule 414 under the
Securities Act of 1933, as amended (the  "Securities  Act"),  in connection with
the  Holding  Company  Restructuring.  In  accordance  with  Rule 414  under the
Securities  Act, the  Registrant,  as the successor  issuer to Old  Cablevision,
hereby expressly adopts this registration  statement as its own for all purposes
of the Securities Act and the Securities  Exchange Act of 1934, as amended.  The
Cablevision  Systems  Corporation  Amended and Restated  Employee  Stock Plan to
which this  registration  statement  relates (the "Plan")  shall be known as the
Cablevision  Systems  Corporation  Amended  and  Restated  Employee  Stock Plan.
Subsequent to the Holding Company Restructuring, the Plan will continue to cover
employees  or  directors,  as the  case  may  be,  of Old  Cablevision  and  its
subsidiaries. However, awards issued in accordance with the Plan shall be shares
of stock, and options to purchase shares of stock, of the Registrant rather than
shares of stock,  and options to purchase shares of stock,  of Old  Cablevision.
Additionally,  the sponsor of the Plan shall be the  Registrant  rather than Old
Cablevision.

    The  applicable  registration  fees  were  paid at the time of the  original
filing of this registration statement.

    EXPLANATORY NOTE

    This Post-Effective  Amendment contains a "re-offer  prospectus" relating to
shares of Class A Common Stock  received in restricted  form or upon exercise of
options  granted to directors or employees of  Cablevision  Systems  Corporation
pursuant  to its  Amended  and  Restated  Employee  Stock Plan  (which  amended,
restated and consolidated the 1985 Employee Stock Plan with other employee stock
plans of the  Corporation).  In addition to those  directors or employees  named
herein  in  respect  of the  number of shares  set  forth  herein,  the names of
additional  directors or employees  who shall  reoffer  shares  pursuant to this
Prospectus  and the amounts of  additional  shares to be reoffered  shall be set
forth in one or more supplements to this re-offer prospectus.




<PAGE>




PROSPECTUS
- ----------






                         CABLEVISION SYSTEMS CORPORATION


                                    SHARES OF

                              CLASS A COMMON STOCK

                           (PAR VALUE $.01 PER SHARE)


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


    The shares of Class A Common  Stock (par value $.01 per share) (the "Class A
Common Stock") of Cablevision Systems Corporation ("Cablevision") offered hereby
(the  "Shares")  may be offered or sold from time to time as  described  in this
Prospectus by individuals  who are deemed  "affiliates"  of Cablevision  Systems
Corporation (the "Selling  Stockholders").  Such shares were originally issuable
under the Cablevision  Systems  Corporation  Amended and Restated Employee Stock
Plan (which amended, restated and consolidated the 1985 Employee Stock Plan with
other employee stock plans of Cablevision).

    Holders  of  Class  A  Common  Stock  are  entitled,  except  under  limited
circumstances,  to elect 25 percent of the total  number of members of the Board
of Directors of Cablevision.  Holders of Cablevision's Class B Common Stock, par
value $0.01 per share (the "Class B Common Stock" and, together with the Class A
Common  Stock,  the  "Common  Stock"),   are  entitled,   except  under  limited
circumstances,  to elect the  remaining 75 percent of  directors.  Except in the
election of  directors,  in certain  other  limited  circumstances  described in
Cablevision's Certificate of Incorporation,  and as may be otherwise required by
statute,  the  holders  of Class A Common  Stock and Class B Common  Stock  vote
together as a single  class.  Each share of Class A Common  Stock  entitles  the
holder  thereof  to cast one vote at a meeting  of  stockholders.  Each share of
Class B Common Stock  entitles the holder thereof to cast ten votes at a meeting
of stockholders.

    Holders of Class A Common  Stock and Class B Common  Stock are  entitled  to
receive equally on a per share basis any dividends or distributions  declared by
the Board of  Directors.  In the event of  liquidation,  holders  of Class A and
Class B Common Stock share with each other on a ratable  basis as a single class
in the net assets of Cablevision  available for  distribution in respect of such
stock.

    Each  Selling  Stockholder  may offer and sell the Shares from time to time,
directly or through  agents,  dealers or  underwriters  designated  from time to
time,  on terms to be  determined  at the time of offer or sale.  The  aggregate
proceeds  to the  Selling  Stockholders  from the sale of the Shares will be the
total purchase price of the Shares sold, less the aggregate agents'  commissions
and  underwriters'  discounts,  if any,  and other  expenses of the offering not
borne by  Cablevision.  None of the proceeds from the sale of Shares pursuant to
this Prospectus will be received by  Cablevision.  Cablevision  will pay certain
expenses,  estimated at  $10,000,  in connection  with the offering and sales of
Shares  pursuant  hereto.  Cablevision  has  agreed to  indemnify  each  Selling
Stockholder  against  certain  liabilities,   including  liabilities  under  the
Securities Act of 1933. See "Selling  Stockholders",  "Plan of Distribution" and
"Statement of Indemnification".

    To the extent  required,  the purchase price or public offering price of any
Shares,  the  names of any  agent,  dealer  or  underwriter  and any  applicable
commission,  discount or  concessions  allowed or  reallowed  with  respect to a
particular offer will be set forth in an accompanying Prospectus Supplement.

    INVESTMENT IN THE SHARES  INVOLVES  SIGNIFICANT  RISKS DISCUSSED UNDER "RISK
FACTORS"  BEGINNING ON PAGE 4 OF THIS  PROSPECTUS  WHICH SHOULD BE CONSIDERED BY
PROSPECTIVE PURCHASERS.




<PAGE>




    The  Selling  Stockholders  and any  agents,  dealers or  underwriters  that
participate with a Selling  Stockholder in the distribution of the Shares may be
deemed to be  "underwriters"  within the meaning of the  Securities Act of 1933,
and any  commission  received by them and any profit on the resale of the Shares
purchased  by them may be deemed to be  underwriting  commissions  or  discounts
under the Act. See "Plan of Distribution" and "Statement of Indemnification" for
indemnification arrangements.

    The Class A Common Stock is currently  traded on the American Stock Exchange
under the symbol "CVC".

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

  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
   EXCHANGE  COMMISSION  OR  ANY  STATE  SECURITIES  COMMISSION  NOR  HAS THE
    COMMISSION  OR ANY STATE SECURITIES COMMISSION PASSED UPON  THE ACCURACY
     OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS
                               A CRIMINAL OFFENSE.


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


    No  person  has  been  authorized  to give  any  information  or to make any
representations,  other than those contained in this  Prospectus,  in connection
with the  offers  described  in this  Prospectus  and,  if  given or made,  such
information or representations must not be relied upon as having been authorized
by Cablevision Systems Corporation. This Prospectus does not constitute an offer
to sell, or the solicitation of an offer to buy,  securities in any jurisdiction
to any person to whom it is unlawful to make such an offer in such jurisdiction.

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

                  The date of this Prospectus is April 3, 1998.






























                                       -2-



<PAGE>



                               TABLE OF CONTENTS

                                                                           PAGE
                                                                           ----

Available Information.......................................................3
Incorporation of Certain Documents by Reference.............................3
Purpose of This Prospectus..................................................4
Risk Factors................................................................4
Use of Proceeds.............................................................8
Selling Stockholders........................................................8
Plan of Distribution........................................................9
Experts....................................................................10
Validity of Class A Common Stock...........................................10
Statement of Indemnification...............................................10



                              AVAILABLE INFORMATION

    Cablevision Systems Corporation 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 Securities and Exchange Commission (the "Commission").  Such reports,  proxy
statements  and other  information  filed by  Cablevision  may be inspected  and
copied at the  public  reference  facilities  of the  Commission  at Room  1024,
Judiciary  Plaza,  450 Fifth Street,  N.W.,  Washington,  D.C. 20549, and at the
following regional offices: 7 World Trade Center, 13th Floor, New York, New York
10048;  and 230 South Dearborn  Street,  Chicago,  Illinois 60604,  and are also
available on the Commission's World Wide Web site at  http:/www.sec.gov.  Copies
of such  material  can be  obtained  from the  Public  Reference  Section of the
Commission at Judiciary Plaza, 450 Fifth Street, N.W., Washington, D.C. 20549 at
prescribed rates. Such reports,  proxy statements and other information also may
be inspected at the offices of the American  Stock  Exchange,  86 Trinity Place,
New York, New York.


                 INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

    Cablevision  hereby  incorporates  by  reference  into this  Prospectus  the
following documents or information filed with the Commission:

    (a)  Cablevision's  Annual  Report on Form 10-K for the  fiscal  year  ended
December 31, 1997 (the "Form 10-K");

    (b) the description of the Class A Common Stock  contained in  Cablevision's
Registration  Statement on Form S-4 (No. 333-44547),  including any amendment or
report filed for the purpose of updating such description; and

    (c) all documents filed by Cablevision  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.

    As  used  herein,   unless  the  context   otherwise   requires,   the  term
"Consolidated   Financial  Statements"  refers  to  the  Consolidated  Financial
Statements and the notes thereto of CSC Holdings, Inc. incorporated by reference
from Cablevision's  Form 10-K, the term  "Management's  Discussion and Analysis"
refers to the  Management's  Discussion and Analysis of Financial  Condition and
Results of  Operations  incorporated  by reference  from the Form 10-K,  and the
"Corporation"  shall mean Cablevision  Systems  Corporation and its consolidated
subsidiaries, including CSC Holdings, 





                                       -3-

<PAGE>



Inc.,  after  giving  pro forma  effect  to the  holding  company  restructuring
pursuant to an Amended and Restated  Contribution  and Merger  Agreement,  dated
June 6, 1997.

    All share and  per-share  information  included  herein  gives effect to the
one-for-one stock dividend paid on March 30, 1998.

    Any statement contained herein, in any accompanying prospectus supplement or
in any document  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, in any accompanying
prospectus  supplement 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 so modified or  superseded  shall not be deemed,
except as so modified or superseded, to constitute a part of this Prospectus.

    Cablevision  will  provide  without  charge  to each  person,  to whom  this
Prospectus  is delivered,  on the written or oral request of any such person,  a
copy of any or all of the documents or any other information incorporated herein
by reference or in the Registration  Statement to which this Prospectus  relates
(not including  exhibits to the  information  that is  incorporated by reference
unless  such  exhibits  are  specifically  incorporated  by  reference  into the
information  that  this  Prospectus   incorporates).   Cablevision's   principal
executive offices are located at One Media Crossways,  Woodbury, New York 11797,
and its telephone  number is (516) 364-8450.  Requests for such copies should be
directed to the Secretary of Cablevision at its executive offices.


                           PURPOSE OF THIS PROSPECTUS

    This Prospectus  relates to resales of, or offers to sell, if any, the Class
A Common Stock of  Cablevision  received in restricted  form or upon exercise of
options granted under the Cablevision  Systems  Corporation Amended and Restated
Employee Stock Plan (which amended,  restated and consolidated the 1985 Employee
Stock Plan with other employee stock plans of the  Corporation)  (the "Plan") by
directors or employees of Cablevision who are deemed "affiliates" of Cablevision
as the term "affiliate" is used in Rule 405 under the Securities Act of 1933, as
amended (the "Securities Act").


                                  RISK FACTORS

    Purchase of the Class A Common Stock involves  various risks,  including the
following,  which,  together  with the other  matters  set forth  herein or in a
supplement  hereto or  incorporated  by  reference  herein,  should be carefully
considered by prospective investors.

    Substantial  Indebtedness  and High Degree of Leverage.  The Corporation has
incurred substantial  indebtedness and issued substantial amounts of mandatorily
redeemable  preferred stock,  primarily to finance acquisitions and expansion of
its operations,  to refinance outstanding  indebtedness and, to a lesser extent,
for  investments in and advances to affiliate.  The  Corporation's  consolidated
debt plus the Corporation's 11 3/4% Series H Redeemable  Exchangeable  Preferred
Stock and 11 1/8% Series M Redeemable Exchangeable  Preferred  Stock  aggregated
approximately  $5.8  billion  at  December 31, 1997.  See Note 5 of Notes to the
Consolidated  Financial Statements.  As a result of the Corporation's high level
of indebtedness  and the significant  amount of redeemable  preferred stock, the
Corporation has significant cash requirements to service indebtedness and to pay
dividends and redemption amounts on redeemable  preferred stock,  increasing the
Corporation's  vulnerability to adverse developments in its business and adverse
economic and industry conditions.  Based on currently  outstanding  obligations,
the Corporation's  quarterly cash obligations for the first,  second,  third and
fourth  quarters  of 1998 are  currently  expected  to be (i) for debt  service,
approximately  $30.5 million,  $61.5  million,  $30.5 million and $61.5 million,
respectively,  and (ii)  for  dividends  on the  Corporation's  8 1/2%  Series I
Cumulative  Convertible   Exchangeable  Preferred  Stock  ("Series  I  Preferred
Stock"),


                                       -4-



<PAGE>



approximately  $7.3 million per quarter.  The  Corporation  also has outstanding
cash redemption  obligations for 1998, if the Corporation elects to pay in cash,
of  approximately  $151  million  in  respect  of the  repayment  of the  Senior
Subordinated  Notes due 1998/2003 of Cablevision MFR, Inc. when due in the third
quarter of 1998.

    Net Losses and Stockholders' Deficiency. The Corporation reported net losses
applicable to common  stockholders  for the years ended December 31, 1997,  1996
and 1995 of $12.1 million, $459.9 million and $337.7 million,  respectively.  At
December  30, 1997,  the  Corporation  had a  stockholders'  deficiency  of $2.4
billion.  The net losses  primarily  reflect high levels of interest expense and
depreciation  and  amortization  charges  relating to the depreciation of assets
obtained through, and debt incurred to finance,  acquisitions.  Interest expense
and depreciation  and  amortization  charges remained at a high level throughout
1995, 1996 and 1997 and will continue at high levels  throughout 1998 and future
years as a result of  previously  completed,  pending  and future  acquisitions,
expected capital  expenditures and additional  investments in the  Corporation's
programming   operations.   The  Corporation   expects  to  continue   incurring
substantial  losses  for at least  the next  several  years.  See  "Management's
Discussion and Analysis--Liquidity and Capital Resources" in the Form 10-K.

    Intangible  Assets. The Corporation had total assets at December 31, 1997 of
approximately $5.6 billion,  of which approximately $2.3 billion were intangible
assets,  principally subscriber lists, franchises,  excess costs over fair value
of net assets  acquired,  deferred  financing  acquisition  and other  costs and
deferred interest expense. It is possible that no cash would be recoverable from
the voluntary or involuntary sale of these intangible assets.

    Need  for  Additional  Financing.   The  Corporation's   businesses  require
substantial investment on a continuing basis to finance capital expenditures and
related  expenses for, among other things,  upgrade of cable plant, the offering
of new services and further  participation in existing services,  the funding of
costs of cable programming services and other businesses prior to their becoming
cash-flow  positive,  and  the  servicing,   repayment  or  refinancing  of  its
indebtedness  and mandatorily  redeemable  preferred stock. The Corporation will
require significant additional financing,  through debt and/or equity issuances,
to meet its capital  expenditure  plans and to pay the principal of and interest
on its debt and to pay dividends and make  redemption  payments on its preferred
stock.  The Corporation also intends to incur additional costs to facilitate the
startup of such adjunct  businesses  as high speed data  service,  digital video
service and  residential  telephony.  Depending upon the timing and scope of the
rollout of these businesses,  as to which the Corporation has made no definitive
decision, the Corporation may require significant additional capital.  Depending
on the  scope of the  Corporation's  participation  in  personal  communications
services ("PCS") and direct broadcasting satellite ("DBS") ventures, as to which
the Corporation has made no definitive decision,  significant additional capital
may also be required for these businesses. The Corporation is not currently able
to estimate the amounts of such capital expenditures,  which would depend highly
upon,  among  other  things,  the timing and scope  thereof.  In  addition,  the
Corporation  may  require  additional  capital  if (i) it  elects to pay cash to
acquire ITT  Corporation's  remaining  interest in Madison Square  Garden,  L.P.
("MSG")  following  an  exercise  by  ITT  Corporation  of  its  put  rights  at
approximately $188 million in cash or by the Corporation of its call rights with
respect  to  such  interests  (see   "Business--Programming   and  Entertainment
Operations--Madison  Square  Garden"  in the Form 10-K) or (ii) it elects to pay
cash of up to $151 million in order to repay the Senior  Subordinated  Notes due
1998/2003 of  Cablevision  MFR,  Inc.  when due in August 1998.  There can be no
assurance that the Corporation  will be able to issue  additional debt or obtain
additional  equity capital on satisfactory  terms, or at all, to meet its future
financing  needs.  See  "Management's  Discussion  and  Analysis--Liquidity  and
Capital Resources".

    Future Capital Expenditures and Commitments. The Corporation intends to make
substantial capital expenditures,  including major system upgrades, with respect
to its cable  television  systems over the next several years. In addition,  the
Corporation,  through Rainbow Media  Holdings,  Inc.  ("Rainbow  Media") and its
subsidiaries,  has entered into numerous  contracts relating to cable television
programming,  including  rights  agreements with  professional  and other sports
teams.  These contracts  typically  require  substantial  payments over extended
periods of time. See Note 12 of Notes to the Consolidated  Financial  Statements
for a  discussion  of  commitments.  For  further  commitments,  see "--Need for
Additional Financing."



                                       -5-



<PAGE>


     Voting  Control by Majority  Stockholders;  Disparate  Voting  Rights.  The
following section describes the voting and ownership structure of Cablevision as
of September  20, 1997 giving pro forma effect to a one-for-one  stock  dividend
distributed by Cablevision on March 30, 1998. As of September 30, 1997,  Charles
F. Dolan  beneficially  owned and  possessed  sole voting  power with respect to
15,610  shares or 0.1% of  Cablevision's  outstanding  Class A Common  Stock and
9,718,562 shares or 43.7% of Cablevision's outstanding Class B common stock (the
"Class B Common  Stock" and,  collectively  with the Class A Common  Stock,  the
"Common Stock").  In addition,  an aggregate of 2,480,000 shares or 11.2% of the
outstanding  Class B Common Stock were held by a grantor  retained annuity trust
(the "GRA Trust")  established by Mr. Dolan for estate  planning  purposes.  Mr.
Dolan may be deemed to have beneficial ownership of the shares of Class B Common
Stock  held by the GRA Trust due to his  right to  reacquire  the Class B Common
Stock held by the GRA Trust by substituting  other property of equivalent value,
but, until such event, the GRA Trust, through its co-trustees (who are Mr. Dolan
and his  spouse),  has the power to vote and  dispose  of the  shares of Class B
Common Stock held by it. As a result of his direct  holdings and his  beneficial
ownership  of the shares held by the GRA Trust,  Mr.  Dolan  beneficially  owned
15,610  shares or 0.1% of  Cablevision's  outstanding  Class A Common  Stock and
12,198,562 shares or 54.9% of Cablevision's outstanding Class B Common Stock. On
a combined basis,  these shares  represented 24.5% of the total number of shares
of both  classes  of Common  Stock and  48.8% of the total  voting  power of the
Common Stock.  Other trusts  established by Mr. Dolan for the benefit of certain
Dolan family members, and as to which Mr. Dolan disclaims beneficial  ownership,
owned an additional 78,000 shares of Class A Common Stock or 0.3% of the Class A
Common Stock and  10,033,856  shares of the Class B Common Stock or 45.1% of the
Class B Common  Stock and 40.1% of the total  voting power of all classes of the
Common Stock. As a result of this stock ownership, Dolan family members have the
power to elect all the  directors  subject to election by holders of the Class B
Common Stock, which directors constitute 75% of the entire Board of Directors of
Cablevision.  Moreover,  because holders of Class B Common Stock are entitled to
ten votes per share while  holders of Class A Common  Stock are  entitled to one
vote per share,  Dolan  family  members may  control  stockholder  decisions  on
matters in which  holders of Class A and Class B Common Stock vote together as a
class.   These  matters   include  the   amendment  of  certain   provisions  of
Cablevision's  certificate of incorporation (the "Certificate of Incorporation")
and the approval of fundamental  corporate  transactions,  including mergers. In
addition,  because the affirmative vote or consent of the holders of at least 66
2/3% of the outstanding shares of the Class B Common Stock, voting separately as
a class,  is  required  to approve  (i) the  authorization  of  issuance  of any
additional shares of Class B Common Stock and (ii) any amendment,  alteration or
repeal  of any of the  provisions  of the  Certificate  of  Incorporation  which
adversely affects the powers, preferences or rights of the Class B Common Stock,
Dolan family  members also have the power to prevent such issuance or amendment.
The voting  rights of the Class B Common Stock  beneficially  owned by the Dolan
family  members  will not be  modified  as a result of any  transfer of legal or
beneficial ownership thereof.  Dolan family members and other holders of Class B
Common Stock are parties to a stockholders  agreement  with TCI  Communications,
which  agreement  provides for certain rights of and  limitations on the Class B
stockholders,  TCI  Communications,  Inc.  and  Cablevision  with respect to the
Common Stock.  None of the figures or  percentages  contained in this  paragraph
give effect to the 12,235,543  shares of Class A Common Stock issued pursuant to
the Amended and Restated  Contribution  and Merger Agreement dated June 6, 1997,
or any other  issuances of common stock that has taken place since September 30,
1997. See "Business--The  Holding Company Reorganization and TCI Transactions --
TCI Transactions" in the Form 10-K.


    Restrictive  Covenants.  Certain  of  the  Corporation's  debt  instruments,
including its principal bank credit agreement (the "Credit Agreement"),  contain
various financial and operating covenants which, among other things, require the
maintenance of certain financial ratios and restrict the  Corporation's  ability
to borrow funds from other  sources and to utilize  funds for various  purposes,
including investments in certain subsidiaries. Violation of the covenants in the
Credit   Agreement   or  in   the   indentures   governing   the   Corporation's
publicly-issued  debentures and notes could result in a default under the Credit
Agreement  which would  permit the bank lenders  thereunder  (i) to restrict the
Corporation's  ability to borrow  undrawn  funds under the Credit  Agreement and
(ii) to accelerate  the maturity of  borrowings  thereunder.  See  "Management's
Discussion and Analysis--Liquidity and Capital Resources".


    Risks Related to Regulation.  The Corporation's cable television  operations
may be adversely  affected by government  regulation,  the impact of competitive
forces and technological  changes. In 1992, Congress enacted the 1992 Cable Act,
which represented a significant  change in the regulatory  framework under which
cable television systems operate.  In 1993 and 1994, the Federal  Communications
Commission  ("FCC")  ordered  reductions in cable  television  rates. In 1995, a
Federal  appeals court upheld the material  aspects of the FCC's rate regulation
scheme. Congress


                                       -6-



<PAGE>



subsequently  enacted  legislation (the  "Telecommunications  Act of 1996") that
relaxes the regulation of cable television rates;  however, the most significant
rate regulation  relaxation affecting the Corporation will not occur until after
March 31, 1999.  Recently,  certain  members of Congress  have proposed that the
relaxation  of rate  regulation  after March 31, 1999 should be  reevaluated  in
light  of  market  conditions.   The  Corporation  cannot  predict  whether  any
legislation  related  thereto will be  considered  by Congress and what form any
legislation,  if enacted into law, would take. See  "Business--Cable  Television
Operations--Competition" and "Business--Cable Television Operations--Regulation"
in the Form 10-K.

    Risk of Competition.  Cable operators compete with a variety of distribution
systems,  including broadcast television stations,  DBS, multichannel multipoint
distribution  services ("MMDS"),  satellite master antenna systems ("SMATV") and
private  home  dish  earth  stations.  For  example,  four DBS  systems  are now
operational  in the  United  States,  some with  investment  by  companies  with
substantial  resources  such as Hughes  Electronics  Corp.  Certain  members  of
Congress  have called for changes in the  federal  copyright  laws to permit DBS
systems to retransmit local broadcast signals to DBS customers. If enacted, such
amendments could enhance the competitive position of DBS systems.

    The  1992  Cable  Act  prohibits  a cable  programmer  that is  owned  by or
affiliated  with a cable  operator  (such as Rainbow  Media)  from  unreasonably
discriminating  among or between cable  operators and other  multichannel  video
distribution  systems with respect to the price, terms and conditions of sale or
distribution  of  the   programmer's   satellite-delivered   services  and  from
unreasonably  refusing  to sell  any  such  service  to any  multichannel  video
programming distributor. In several instances, Rainbow Media has been ordered by
the  FCC to  provide  satellite-delivered  programming  to  multi-channel  video
programmers  after such  multi-channel  video  programmers have filed complaints
pursuant to these  program-access  rules. The FCC has recently sought comment on
whether  it can and  should  extend  these  program-access  rules to cover  some
terrestrial-delivered  programming  by  programmers  such as Rainbow  Media.  In
addition,  proposals  have been made to Congress in support of such  extensions.
The Corporation  cannot predict whether such an extension will be adopted by the
FCC or  considered  by  Congress  and,  if so,  what effect it might have on the
Corporation's operations. Cable systems also compete with the entities that make
videotaped movies and programs available for home rental.

    The 1992 Cable Act regulates  the  ownership by cable  operators of MMDS and
SMATV. Under the Telecommunications Act of 1996, the cross-ownership  provisions
do not apply to any cable operator in a franchise area in which a cable operator
faces competition from video programming  distributors meeting certain statutory
requirements.  The  Telecommunications Act of 1996 gives telephone companies and
other video providers the option of providing  video  programming to subscribers
through "open video systems" ("OVS"), a wired video delivery system similar to a
cable television system that would not require a local cable franchise.  Several
OVS operators have sought to enter New York City, Boston and Westchester County,
New York.  Additional  video  competition  to cable systems is possible from new
wireless local multipoint  distribution services ("LMDS") authorized by the FCC,
for which spectrum will be auctioned by the FCC in early 1998.

    Competition from Telephone Companies. The 1984 Cable Act barred co-ownership
of  telephone  companies  and cable  television  systems  operating  in the same
service areas. The  Telecommunications  Act of 1996 repeals this restriction and
permits a telephone company to provide video programming directly to subscribers
in its telephone service territory,  subject to certain regulatory requirements,
but generally  prohibits a telephone  company from acquiring an in-region  cable
operator, except in certain small markets under certain circumstances. Telephone
companies  (Ameritech  Corp.  in Ohio and Southern New England  Telephone Co. in
Connecticut)  have  obtained or applied for local  franchises  to construct  and
operate cable television systems in several communities in which the Corporation
currently  holds  cable  franchises,  and in certain  locations  have  commenced
offering  service.  Neither  the 1984  Cable  Act nor the 1992  Cable Act bars a
telephone  company from acquiring  cable systems  outside its telephone  service
area.  Several  Regional  Bell  operating   companies  have  purchased  or  made
investments   in   such   cable   systems.   See   "Business--Cable   Television
Operations--Regulation" in the Form 10-K.



                                       -7-



<PAGE>



    Risk of Non-Exclusive  Franchises and Franchise Renewals.  The Corporation's
cable television  systems are operated primarily under  non-exclusive  franchise
agreements with local government franchising authorities, in some cases with the
approval of state cable television  authorities.  The Corporation's  business is
dependent  on its  ability  to obtain  and renew its  franchises.  Although  the
Corporation  has never  lost a  franchise  as a result of a failure  to obtain a
renewal,  its franchises are subject to non-renewal or termination under certain
circumstances.  In certain cases, franchises have not been renewed at expiration
and the  Corporation  operates under either  temporary  operating  agreements or
without  a  license  while  negotiating   renewal  terms  with  the  franchising
authorities. See "Business--Cable Television Operations--Franchises" in the Form
10-K.

    No  Dividends  Paid or to be Paid.  Cablevision  has never  declared or paid
dividends on any of its Common Stock and has no intention to pay cash  dividends
on such stock in the foreseeable  future. In addition,  certain debt instruments
to which the Corporation is a party contain covenants which effectively prohibit
the payment of such dividends.

    Shares  Eligible for Future Sale. On March 24, 1998,  52,672,196  shares of
Class A Common Stock were  outstanding  giving effect to the  one-for-one  stock
dividend paid on March 30, 1998.  Cablevision  has granted to each of Mr. Dolan,
certain  Dolan family  interests,  the Dolan Family  Foundation,  John Tatta,  a
director  of CSC  Holdings,  Inc.  and  Cablevision,  and certain  Tatta  family
interests  registration  rights with respect to 874,375 shares of Class A Common
Stock held by them on such date, as well as with respect to 12,423,532 shares of
Class A Common Stock issuable upon conversion of shares of Class B Common Stock.
The direct or indirect subsidiaries of Tele-Communications, Inc. holding Class A
Common  Stock have  certain  registration  rights with respect to such shares of
Class A Common Stock.  Sales of a substantial number of shares of Class A Common
Stock or Class B Common  Stock could  adversely  affect the market  price of the
Class A Common Stock and could impair the Corporation's  future ability to raise
capital through an offering of its equity securities.


                                 USE OF PROCEEDS

    The  Shares  may be  sold  hereunder  from  time  to  time  by  the  Selling
Stockholders,  and  Cablevision  will not receive any of the proceeds  from such
sales.


                              SELLING STOCKHOLDERS

    The  Shares  may be  offered  from time to time by each  individual  Selling
Stockholder  listed in the table below up to the amount set forth  opposite such
individual's  name under the column captioned "Shares of Class A Common Stock to
be  Offered  Hereby"  or such  additional  amount  as  shall  be set  forth in a
supplement  or  supplements  to this  Prospectus  or by such other  employees of
Cablevision as may be named in a supplement or  supplements to this  Prospectus.
The  following  table sets  forth the  relationship  which each such  individual
Selling  Stockholder has had with  Cablevision  during the past three years, the
number of shares of Class A Common Stock which each such  individual owns or for
which  such  individual  holds  options  pursuant  to the Plan and  which may be
offered  hereby,  the  number of shares  of Class A Common  Stock  owned by such
individual and the number of options to purchase  shares of Class A Common Stock
which such individual holds other than pursuant to the Plan.

    Because  each  Selling  Stockholder  may  offer  some  or all of the  Shares
pursuant to the offerings contemplated by this Prospectus, because the offerings
of the Shares are not  necessarily  being  made on a firm  commitment  basis and
because each Selling  Stockholder could purchase additional Class A Common Stock
from time to time,  no estimate  can be given as to the amount of Class A Common
Stock that will be held by the Selling  Stockholders  after  completion  of this
offering. See "Plan of Distribution".


                                       -8-



<PAGE>



<TABLE>
<CAPTION>
                                                               Shares
                                                                 of               Shares of   
                                                              Class A              Class A     
                                                            Common Stock         Common Stock  
                                                           to be Offered           Currently   
          Name                      Position                   Hereby*              Owned**    
- ----------------------     -------------------------       -------------         ------------  
<S>                        <C>                             <C>                   <C>           

Margaret Albergo           Senior Vice President                                               
                             Planning and Performance            250                26,431

William J. Bell            Vice Chairman and                  92,600               268,198
                             Director

Marc A. Lustgarten         Vice Chairman and                  92,600               274,626
                             Director

Robert S. Lemle            Executive Vice                     78,000               237,248
                             President,
                             General Counsel,
                             Secretary and
                             Director

Andrew Rosengard           Executive Vice                      2,750                39,284
                             President, Financial
                             Planning and
                             Controller

Barry J. O'Leary           Senior Vice President-             36,200                71,200
                             Finance and
                             Treasurer

Sheila A. Mahony           Senior Vice President              27,800                63,084
                             and Director

Joseph Cece                Senior Vice President,              3,125                13,126
                             Strategic Planning
</TABLE>


                              PLAN OF DISTRIBUTION

    Any of or all of the  Shares  may be sold  from  time to time to  purchasers
directly by the Selling  Stockholders.  Alternatively,  the Selling Stockholders
may from time to time offer the Shares through  underwriters,  dealers or agents
who  may  receive  compensation  in  the  form  of  discounts,   concessions  or
commissions  from the Selling  Stockholders  and/or the purchasers of Shares for
whom they may act. The Selling  Stockholders and any such underwriters,  dealers
or agents that  participate  in the  distribution  of Shares may be deemed to be
underwriters  under the Securities Act, and any profit on the sale of the Shares
by them and any discounts,  commissions  or concessions  received by them may be
deemed to be underwriting discounts and commissions under the Securities Act. To
the  extent  required,  at the  time a  particular  offer  of  Shares  is made a
supplement  to this  Prospectus  will be  distributed  which  will set forth the
number of Shares being offered and the terms of the offering, including the name
or names of any underwriters,  dealers or agents, any 


- -------- 
*    Certain of the employee stock options are not yet exercisable.

**   Including shares under options to purchase Class A Common Stock.


                                       -9-

<PAGE>


discounts,  commissions  and  other  items  constituting  compensation  from the
Selling  Stockholders and any discounts,  commissions or concessions  allowed or
reallowed  or paid to  dealers,  including  the  proposed  selling  price to the
public.

    The  Shares may be sold from time to time in one or more  transactions  at a
fixed offering price,  which may be changed,  or at varying prices determined at
the time of sale or at negotiated prices.

    Cablevision is paying certain expenses (not including commissions of dealers
or agents) incident to the offering and sale of the Shares to the public,  which
are estimated to be approximately  $10,000.  If and when Cablevision is required
to update this  Prospectus,  it may incur  additional  expenses in excess of the
amount estimated above.

    In order to comply with certain states' securities laws, if applicable,  the
Shares will be sold in such  jurisdictions  only through  registered or licensed
brokers  or  dealers.  In certain  states the Shares may not be sold  unless the
Shares have been  registered or qualified for sale in such state or an exemption
from registration or qualification is available and is met.

    Pursuant to the Plan, Cablevision agreed to use its best efforts to keep the
Registration  Statement  of  which  this  Prospectus  forms a part  continuously
effective  for a period  of at least  two years  from the date the  Shares  were
issued by  Cablevision.  Cablevision  has also agreed to  indemnify  the Selling
Stockholders  against  certain  liabilities,  including  liabilities  under  the
Securities Act. See "Statement of Indemnification".


                                     EXPERTS

    The consolidated  financial statement of Cablevision Systems Corporation and
subsidiary  as of December 31, 1997 that is included in the Form 10-K,  which is
incorporated in this Prospectus by reference has been incorporated herein and in
the Registration Statement in reliance upon the report of KPMG Peat Marwick LLP,
independent certified public accountants,  incorporated by reference herein, and
upon the authority of said firm as experts in accounting and auditing.

    The consolidated financial statements and schedule of CSC Holdings, Inc. and
subsidiaries  as of December  31, 1997 and 1996 and for each of the years in the
three year period  ended  December  31, 1997 that are  included in the Form 10-K
which is  incorporated  in this  Prospectus by reference have been  incorporated
herein and in the  Registration  Statement  in reliance  upon the report of KPMG
Peat Marwick LLP,  independent  certified  public  accountants,  incorporated by
reference  herein,  and upon the authority of said firm as experts in accounting
and auditing.


                        VALIDITY OF CLASS A COMMON STOCK

    The  validity  of shares of Class A Common  Stock  offered  hereby  has been
passed upon for Cablevision by Robert S. Lemle, Esq.,  Executive Vice President,
General Counsel and Secretary of Cablevision. As of the date of this Prospectus,
Mr.  Lemle owned 448 shares of Class A Common Stock and held options to purchase
78,000 shares of Class A Common Stock  pursuant to the Plan and other options to
purchase an additional 158,800 shares of Class A Common Stock.


                          STATEMENT OF INDEMNIFICATION

    Under provisions of the Certificate of  Incorporation  of Cablevision,  each
person who is or was a director or officer of  Cablevision  shall be indemnified
by  Cablevision  to the fullest  extent  permitted by Section 145 of the General
Corporation  Law of Delaware,  which provides that a corporation  shall have the
power to indemnify an agent,  officer or director who was or is threatened to be
made a party to any proceedings,  against certain  expenses,  judgments,  fines,
settlements  and other  accounts  under  certain  circumstances.  The By-laws of
Cablevision provide that the Board of Directors may advance expenses incurred by
an officer or director  in  defending  certain  proceedings  upon  receipt of an
undertaking to repay such amount under certain  circumstances.  The stockholders
of Cablevision, at the annual meeting held on September 23, 1987, authorized and
approved a form of Indemnification Agreement.  Cablevision has entered into such
Indemnification


                                      -10-



<PAGE>



Agreement  with  approximately  15 officers and  directors of Cablevision.  Such
Indemnification  Agreement  provides that Cablevision  will,  subject to certain
exceptions, indemnify each such person in respect of losses or expenses incurred
as a result of threatened, pending or completed actions or proceedings involving
such person and relating to such  person's  service as an officer or director of
Cablevision,  including losses and expenses in respect of actions or proceedings
brought under the Securities Act.

    Insofar as indemnification  for liabilities arising under the Securities Act
may be permitted  for  directors,  officers or persons  controlling  Cablevision
pursuant to the foregoing provisions,  the Corporation has been informed that in
the opinion of the Commission such  indemnification  is against public policy as
expressed in the Securities Act and is therefore unenforceable.




























                                      -11-



<PAGE>



                                     PART II

                   INFORMATION NOT REQUIRED IN THE PROSPECTUS


ITEM 6.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.

    Section  145  of  the  Delaware  General  Corporation  Law  provides  that a
corporation may indemnify  directors and officers as well as other employees and
individuals against expenses (including attorneys' fees),  judgments,  fines and
amounts paid in  settlement  in  connection  with  specified  actions,  suits or
proceedings,  whether civil,  criminal,  administrative or investigative  (other
than an action by or in the right of the corporation--a "derivative action"), if
they acted in good faith and in a manner  they  reasonably  believed to be in or
not opposed to the best interests of the  corporation,  and, with respect to any
criminal action or proceeding,  had no reasonable cause to believe their conduct
was  unlawful.  A  similar  standard  is  applicable  in the case of  derivative
actions,  except  that  indemnification  only  extends  to  expenses  (including
attorneys'  fees)  incurred in  connection  with defense or  settlement  of such
action,  and  the  statute  requires  court  approval  before  there  can be any
indemnification  where the person seeking  indemnification has been found liable
to the  corporation.  The statute  provides  that it is not  exclusive  of other
rights to which those seeking  indemnification may be entitled under any by-law,
agreement, vote of stockholders or disinterested directors or otherwise.

    The  first  paragraph  of  Article  Ninth of  Cablevision's  Certificate  of
Incorporation provides:

         The corporation  shall, to the fullest extent  permitted by Section 145
    of the General Corporation Law of the State of Delaware,  as the same may be
    amended and supplemented, or by any successor thereto, indemnify any and all
    persons  whom it shall have power to  indemnify  under said section from and
    against any and all of the expenses,  liabilities or other matters  referred
    to in or  covered  by said  section.  Such  right to  indemnification  shall
    continue as to a person who has ceased to be a director,  officer,  employee
    or agent  and  shall  inure  to the  benefit  of the  heirs,  executors  and
    administrators  of such a person.  The  indemnification  provided for herein
    shall not be deemed  exclusive  of any other  rights to which those  seeking
    indemnification  may be  entitled  under  any  By-Law,  agreement,  vote  of
    stockholders or disinterested directors or otherwise.

    Article VIII of the By-Laws of Cablevision provides:

         A. The  corporation  shall  indemnify  each person who was or is made a
    party  or is  threatened  to be  made  a  party  to or is  involved  in  any
    threatened,  pending or completed action, suit or proceeding, whether civil,
    criminal,  administrative or investigative (hereinafter a "proceeding"),  by
    reason  of the fact  that he or she,  or a  person  of whom he or she is the
    legal representative,  is or was a director or officer of the corporation or
    is or was serving at the request of the corporation as a director,  officer,
    employee or agent of another corporation or of a partnership, joint venture,
    trust or other  enterprise,  including  service  with  respect  to  employee
    benefit plans,  whether the basis of such proceeding is alleged action in an
    official  capacity  as a  director,  officer,  employee  or agent or alleged
    action in any other capacity while serving as a director,  officer, employee
    or  agent,  to  the  maximum  extent  authorized  by  the  Delaware  General
    Corporation Law, as the same exists or may hereafter be amended (but, in the
    case of any such amendment, only  to the extent that such amendment  permits
    the  corporation  to provide  broader  indemnification  rights than said law
    permitted the corporation to provide prior to such  amendment),  against all
    expense,  liability and loss (including attorney's fees,  judgments,  fines,
    ERISA  excise  taxes  or  penalties  and  amounts  paid  or  to be  paid  in
    settlement)  reasonably  incurred  by such  person in  connection  with such
    proceeding.  Such  indemnification  shall  continue  as to a person  who has
    ceased to be a director,  officer,  employee or agent and shall inure to the
    benefit  of his or her heirs,  executors  and  administrators.  The right to
    indemnification  conferred  in this  Article  shall be a contract  right and
    shall include the right to be paid by the corporation the expenses  incurred
    in  defending  any such  proceeding  in  advance  of its final  disposition;
    provided  that, if the Delaware  General  Corporation  Law so requires,  the
    payment of such expenses


                                      -12-



<PAGE>



    incurred by a director or officer in advance of the final  disposition  of a
    proceeding  shall  be  made  only  upon  receipt  by the  corporation  of an
    undertaking  by or on behalf of such person to repay all amounts so advanced
    if it shall  ultimately be determined that such person is not entitled to be
    indemnified by the corporation as authorized in this Article or otherwise.

         B. The right to  indemnification  and advancement of expenses conferred
    on any person by this Article shall not limit the corporation from providing
    any other indemnification  permitted by law nor shall it be deemed exclusive
    of any other right which any such person may have or hereafter acquire under
    any  statute,  provision  of  the  Certificate  of  Incorporation,   by-law,
    agreement, vote of stockholders or disinterested directors or otherwise.

         C. The corporation may purchase and maintain insurance, at its expense,
    to  protect  itself  and any  director,  officer,  employee  or agent of the
    corporation or another  corporation,  partnership,  joint venture,  or other
    enterprise  against  any  expense,  liability  or loss,  whether  or not the
    corporation  would have the power to  indemnify  such  person  against  such
    expense, liability or loss under the Delaware General Corporation Law.

    Cablevision has entered into indemnification  agreements with certain of its
officers and directors indemnifying such officers and directors from and against
certain  expenses,  liabilities  or other  matters  referred to in or covered by
Section  145 of the  Delaware  General  Corporation  Law. 

    Section  102(b)(7)  of  the  Delaware  General  Corporation  Law  permits  a
corporation to provide in its certificate  of  incorporation  that a director of
the  corporation  shall  not be  personally  liable  to the  corporation  or its
stockholders  for monetary  damages for breach of fiduciary  duty as a director,
except for liability (i) for any breach of the director's duty of loyalty to the
corporation or its stockholders, (ii) for acts or omissions not in good faith or
which involve  intentional  misconduct or a knowing  violation of law, (iii) for
payments of unlawful dividends or unlawful stock repurchases or redemptions,  or
(iv) for any transaction  from which the director  derived an improper  personal
benefit.  The second paragraph of Article Ninth of Cablevision's  Certificate of
Incorporation provides for such limitation of liability.

ITEM 8.  EXHIBITS

4.2      Certificate  of  Designations  for  Cablevision's  Series L  Redeemable
         Exchangeable  Preferred  Stock  (incorporated  herein by  reference  to
         Exhibit 3.1G to  Cablevision's  Annual Report on Form 10-K for the year
         ended December 31, 1995).

4.3      Certificate  of  Designations  for  Cablevision's  Series M  Redeemable
         Exchangeable  Preferred  Stock  (incorporated  herein by  reference  to
         Exhibit  4.1(f) to  Cablevision's  Registration  Statement on Form S-4,
         Registration No. 333-00527).

4.4      Indenture  dated as of  December  1,  1997  relating  to  Cablevision's
         $500,000,000  7 7/8% Senior Notes due 2007 and its  $300,000,000 7 7/8%
         Senior Debentures due 2018 (incorporated herein by reference to Exhibit
         4.4 to the S-4).



                                      -13-



<PAGE>



4.5      Indenture  dated as of  February  15, 1993  relating  to  Cablevision's
         $200,000,000  9 7/8%  Senior  Subordinated  Debentures due February 15,
         2013  (incorporated  herein  by  reference  to  Exhibit 4.3 to the 1992
         10-K).

4.6      Indenture  dated  as  of  April  1,  1993  relating  to   Cablevision's
         $150,000,000  9 7/8%   Senior   Subordinated    Debentures   due   2023
         (incorporated   herein  by  reference  to  Cablevision's   Registration
         Statement on Form S-4, Registration No. 33-61814).

4.7      Supplemental Indenture dated as of November 1, 1995 between Cablevision
         and The Bank of New York,  Trustee to the Indenture  dated  November 1,
         1995 (incorporated herein by reference to Exhibit 99.6 to Cablevision's
         Current Report on Form 8-K (File No. 1-9046), filed November 1, 1995).

4.8      Indenture dated August 15, 1997 relating to Cablevision's  $400,000,000
         8 1/8% Senior Debentures due 2009 (incorporated  herein by reference to
         Cablevision's  Registration  Statement  on Form S-4,  Registration  No.
         333-38013).

4.9      Indenture  dated as of  November  1,  1995  relating  to  Cablevision's
         $150,000,000  9 7/8%  Senior Subordinated Notes due 2006,  $300,000,000
         9 1/4%  Senior  Subordinated  Notes  due 2005 and $250,000,000  10 1/2%
         Senior  Subordinated   Debentures  due  2016  (incorporated  herein  by
         reference to Exhibit 99.6 to  Cablevision's  Current Report on Form 8-K
         filed November 1, 1995).

4.10     Certificate  of  Designations  for  Cablevision's  Series E  Redeemable
         Exchangeable   Convertible  Preferred  Stock  (incorporated  herein  by
         reference to  Cablevision's  Annual  Report on Form 10-K/A for the year
         ended December 31, 1993, filed on April 13, 1994).

4.11     Certificate  of  Designations  for  Cablevision's  Series F  Redeemable
         Preferred  Stock  (incorporated  herein by reference  to  Cablevision's
         Annual  Report on Form  10-K/A for the year ended  December  31,  1993,
         filed on April 13, 1994).

4.12     Certificate  of  Designations  for  Cablevision's  Series G  Redeemable
         Preferred  Stock  (incorporated  herein by reference to Exhibit 3.1D to
         Cablevision's  Registration  Statement  on Form S-4,  Registration  No.
         33-62717).

4.13     Certificate  of  Designations  for  Cablevision's  Series H  Redeemable
         Exchangeable  Preferred  Stock  (incorporated  herein by  reference  to
         Exhibit  4.1E to  Cablevision's  Registration  Statement  on Form  S-4,
         Registration No. 33-63691).

4.14     Certificate  of  Designations  for  Cablevision's  Series I  Cumulative
         Convertible   Exchangeable  Preferred  Stock  (incorporated  herein  by
         reference to Exhibit 99.3 to  Cablevision's  Current Report on Form 8-K
         (File No. 1-9046) dated November 7, 1995).

5.       Opinion  of Robert S.  Lemle as to the  validity  of the Class A Common
         Stock.*

23.1.    Consent of KPMG Peat Marwick LLP.

23.2.    Consent of Robert Lemle (included in Exhibit 5).

24.      Power of Attorney (included in the signature page).



- --------
*  Previously filed.


                                      -14-



<PAGE>



ITEM 9.  REQUIRED UNDERTAKINGS

    (a) The undersigned registrant hereby undertakes;

        (1)  To file, during any period in which offers or sales are being made,
     a post-effective amendment to this registration statement:

             (i)   To include any prospectus required by section 10(a)(3) of the
        Securities Act of 1933;

             (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 (a)(1)(i) and (a)(1)(ii) do not apply
    if 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 this registration statement;

        (2)  That,  for the  purpose  of  determining  any  liability  under the
    Securities Act of 1933, 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; and

        (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.

    (b) 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.

    (c) Insofar as indemnification  for liabilities arising under the Securities
Act may be  permitted to  directors,  officers  and  controlling  persons of the
registrant  pursuant to any  arrangement  or provision,  the registrant has been
advised  that in the opinion of the  Securities  and  Exchange  Commission  such
indemnification  is against public policy as expressed in the Securities Act and
is,  therefore,  unenforceable.  In the event  that a claim for  indemnification
against such  liabilities  (other than the payment by the registrant of expenses
incurred or paid by a director,  officer or controlling person of the registrant
in the successful defense of any action, suit or proceeding) is asserted by such
director,  officer or controlling person in connection with the securities being
registered, the registrant will, unless in the opinion of its counsel the matter
has been  settled by  controlling  precedent,  submit to a court of  appropriate
jurisdiction the question whether such  indemnification  by it is against public
policy as  expressed  in the  Securities  Act and will be  governed by the final
adjudication of such issue.








                                      -15-



<PAGE>

                                   SIGNATURES

    Pursuant to the requirements of the Securities Act of 1933, as amended,  the
registrant  has duly  caused  this  Registration  Statement  to be signed on its
behalf by the undersigned,  thereunto duly  authorized,  in the Town of Woodbury
and the State of New York, on the 2nd day of April, 1998.

                                        CABLEVISION SYSTEMS CORPORATION


                                        By: /s/ William J. Bell
                                           ----------------------------
                                        Name:  William J. Bell
                                        Title: Vice Chairman and Director


                               POWER OF ATTORNEY

    KNOW ALL MEN BY THESE  PRESENTS,  that each person whose  signature  appears
below  constitutes  and appoints  William J. Bell,  Robert S. Lemle and Barry J.
O'Leary,  and each of them,  his true and lawful  attorneys-in-fact  and agents,
with full power of substitution and  resubstitution,  for him in his name, place
and stead, in any and all capacities,  to sign any and all amendments (including
post-effective  amendments) to this Registration  Statement,  and file the same,
with all exhibits thereto and other documents in connection therewith,  with the
Securities and Exchange  Commission,  granting unto said  attorneys-in-fact  and
agents,  full power and authority to do and perform each and every act and thing
requisite  and  necessary  to be done as fully to all intents and purposes as he
might or could do in  person,  hereby  ratifying  and  confirming  all that said
attorneys-in-fact  and agents or any of them may lawfully do or cause to be done
by virtue hereof.

    Pursuant to the requirements of the Securities Act of 1933, as amended, this
registration  statement  has  been  signed  by  the  following  persons  in  the
capacities indicated on April 2, 1998.


<TABLE>
<CAPTION>
         SIGNATURE                                                    TITLE
         ---------                                                    -----
<S>                                     <C>


 /s/  James L. Dolan                    Chief Executive Officer and Director (Principal Executive Officer)
- ---------------------------------
      James L. Dolan


 /s/ William J. Bell                    Vice Chairman and Director (Principal Financial Officer)
- ---------------------------------
    William J. Bell


 /s/ Andrew B. Rosengard                Executive Vice President, Financial Planning and Controller (Principal
- ---------------------------------       Accounting Officer)
  Andrew B. Rosengard                   


 /s/ Charles F. Dolan                   Chairman of the Board of Directors
- ---------------------------------
    Charles F. Dolan


 /s/ Thomas C. Dolan                    Senior Vice President, Chief Information Officer and Director
- ---------------------------------
    Thomas C. Dolan


 /s/ Marc A. Lustgarten                 Vice Chairman and Director
- ---------------------------------
    Marc A. Lustgarten


                                        Director
- ---------------------------------
   Leo J. Hindrey, Jr.


 /s/ Robert S. Lemle                    Executive Vice President, General Counsel, Secretary and Director
- ---------------------------------
     Robert S. Lemle


 /s/ Sheila A. Mahony                   Senior Vice President and Director
- ---------------------------------
    Sheila A. Mahony

                                      -16-

<PAGE>


         SIGNATURE                                                    TITLE
         ---------                                                    -----




                                        Director and Chairman of the Executive Committee
- ---------------------------------
         John Tatta



                                        Director
- ---------------------------------
     Patrick F. Dolan



                                        Director
- ---------------------------------
       John C. Malone



 /s/ Charles D. Ferris                  Director
- ---------------------------------
    Charles D. Ferris



 /s/ Richard H. Hochman                 Director
- ---------------------------------
   Richard H. Hochman



 /s/ Victor Oristano                    Director
- ---------------------------------
     Victor Oristano



                                        Director
- ---------------------------------
       Vincent Tese
</TABLE>




















                                      -17-



                                                                    Exhibit 23.1


                         CONSENT OF INDEPENDENT AUDITORS



The Board of Directors
Cablevision Systems of Corporation, and
         CSC Holdings, Inc.



         We  consent  to the  incorporation  by  reference  in the  registration
statement on Form S-8 of  Cablevision  Systems  Corporation of our reports dated
March 20, 1998,  relating to the (i)  consolidated  balance sheet of Cablevision
Systems   Corporation   and  subsidiary  as  of  December  31,  1997,  and  (ii)
consolidated  balance  sheets  of CSC  Holdings,  Inc.  and  subsidiaries  as of
December  31,  1997  and  1996  and  the  related  consoldiated   statements  of
operations, stockholders' deficiency and cash flows for each of the years in the
three-year  period  ended  December 31, 1997,  and the related  schedule,  which
reports  appear  in the  December  31,  1997  annual  report  on  Form  10-K  of
Cablevision Systems Corporation and CSC Holdings,  Inc. and to the references to
our firm under the heading "experts" in the prospectus.





                                                       /s/ KPMG Peat Marwick LLP

                                                       KPMG Peat Marwick LLP



Jericho, New York
April 2, 1998



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