Form 4

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue.
See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C.

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility
Holding Company Act of 1935 or Section 30(f) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* NBC-Rainbow Holding, Inc. (Last) (First) (Middle) 30 Rockefeller Plaza (Street) New York, New York 10112 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol Cablevision Systems Corporation (NYSE - RMG)						6. Relationship of Reporting Person(s) to Issuer) (Check all applicable) Director X 10% Owner Officer (give Other (specify title below) below)
	3. IRS or Social Security Number of Reporting Person (Voluntary)			4. Statement for (Month/Year) 6 & 10/01
				5. If Amendment, Date of Original (Month/Year)			7. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X Form filed by More than One Reporting Person
	Table 1 - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Trans- action Date (Month/ Day/ Year)	3. Trans- action Code (Instr. 8)		4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned at End of Month (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Trans- action Date (Month/ Day/ Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Cablevision - Rainbow Media Group Class A Common Stock, $.01 par value ("Rainbow Tracking Stock")	06/29/01	X		2,159,104	A	(1)	2,159,104	D
Rainbow Tracking Stock	09/28/01	X		3,491,676	A	(1)	5,650,780	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

(1) Pursuant to a Stockholders' Agreement, previously filed with the SEC, dated Oct. 6, 2000 and effective as of March 29, 2001, by and among NBC-Rainbow Holding, Inc. ("NBC-Rainbow"), Cablevision Systems Corporation, CSC Holdings, Inc. and National Broadcasting Company, Inc., NBC-Rainbow was granted the right (the "Exchange Right") to exchange shares of Class A Common Stock of Rainbow Media Holdings, Inc. ("Holdings Stock") owned by it for shares of Rainbow Tracking Stock. Exercises of the Exchange Right to acquire shares of Rainbow Tracking Stock at the fixed exchange rate per share of Holdings Stock set forth above are exempt under Rule 16b-6(b) under the Securities Exchange Act of 1934, as amended (the "Exchange Act") from the operation of Section 16(b) of the Exchange Act. There is no public market for the shares of Holdings Stock.

(2) This number of shares of Holdings Stock is exchangeable for 42,511,577 shares of Rainbow Tracking Stock pursuant to the Exchange Right.

(3) This number of shares of Holdings Stock is exchangeable for 39,019,901 shares of Rainbow Tracking Stock pursuant to the Exchange Right.

National Broadcasting Company, Inc., a subsidiary of National Broadcasting Company Holding, Inc., through its direct wholly-owned subsidiary NBC-Rainbow Holding, Inc. ("NBC-Rainbow"), has an Indirect (I) beneficial ownership interest in (i) 2,159,104 shares of the Rainbow Media Group Class A Common Stock of Cablevision Systems Corporation ("Rainbow Tracking Stock") directly owned by NBC-Rainbow and acquired by it through exercise of the Exchange Right as reported in this form and (ii) the Exchange Right directly owned by NBC-Rainbow and exercisable for 42,511,577 shares of Rainbow Tracking Stock, all of the foregoing numbers being as of the end of the month reported on herein.

                 By: /s/ Elizabeth A. Newell
                 Name: Elizabeth A. Newell
                 Title: Assistant Secretary

National Broadcasting Company Holding Inc., a subsidiary of General Electric Company, through its indirect wholly-owned subsidiary NBC-Rainbow Holding, Inc. ("NBC-Rainbow"), has an Indirect (I) beneficial ownership interest in (i) 2,159,104 shares of the Rainbow Media Group Class A Common Stock of Cablevision Systems Corporation ("Rainbow Tracking Stock") directly owned by NBC-Rainbow and acquired by it through exercise of the Exchange Right as reported in this form and (ii) the Exchange Right directly owned by NBC-Rainbow and exercisable for 42,511,577 shares of Rainbow Tracking Stock, all of the foregoing numbers being as of the end of the month reported on herein.

                 By: /s/ Elizabeth A. Newell
                 Name: Elizabeth A. Newell
                 Title:Assistant Secretary

General Electric Company, through its indirect wholly-owned subsidiary NBC-Rainbow Holding, Inc. ("NBC-Rainbow"), has an Indirect (I) beneficial ownership interest in (i) 2,159,104 shares of the Rainbow Media Group Class A Common Stock of Cablevision Systems Corporation ("Rainbow Tracking Stock") directly owned by NBC-Rainbow and acquired by it through exercise of the Exchange Right as reported in this form and (ii) the Exchange Right directly owned by NBC-Rainbow and exercisable for 42,511,577 shares of Rainbow Tracking Stock, all of the foregoing numbers being as of the end of the month reported on herein.

                 By: /s/ Robert E. Healing
                 Name: Robert E. Healing
                 Title: Corporate Counsel

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.	Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.	(Over) SEC 1474 (3-99)
*If the form is filed by more than one reporting person, see Instruction 4(b) (v).