CSC Holdings Extends Exchange Offer Relating to 6-3/4% Senior Notes Due 2012.

BETHPAGE, N.Y. -- CSC Holdings, Inc., a subsidiary of Cablevision Systems Corporation (NYSE: CVC), today announced that, due to the matters discussed in its August 8, 2006 Form 8-K, it will extend until September 8, 2006, at 5:00 P.M., New York City time, its offer to exchange up to $500 million aggregate principal amount of its 6-3/4% Senior Notes due 2012, which were initially issued and sold in a private placement in April 2004, for an equal aggregate amount of its registered 6-3/4% Series B Senior Notes due 2012.

Prior to this extension, the exchange offer was scheduled to expire at 5:00 P.M., New York City time, on August 17, 2006. As of 5:00 P.M., New York City time, on August 15, 2006, $194,044,000 of the old notes had been tendered for exchange.

Except for the extension of the expiration date, all of the other terms of the exchange offer remain as set forth in the exchange offer prospectus dated July 18, 2006.

This press release is not an offer to exchange new notes for the old notes or the solicitation of an offer to exchange. Any offer will be made by CSC Holdings, Inc. only by means of the exchange offer prospectus.

Any holder of the old notes who would like to obtain copies of the exchange offer prospectus and related documents, or who has questions regarding the exchange offer, should contact CSC Holdings, Inc.'s exchange agent, The Bank of New York, at [phone].

CSC Holdings, Inc. is a subsidiary of Cablevision Systems Corporation, one of the nation's leading entertainment and telecommunications companies. Cablevision's cable television operations serve more than 3 million households in the New York metropolitan area. The company's advanced telecommunications offerings include its iO: Interactive Optimum digital television, Optimum Online high-speed Internet, Optimum Voice digital voice-over-cable, and its Optimum Lightpath integrated business communications services. Additional information about Cablevision is available on the Web at www.cablevision.com.

This release contains statements that constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Examples of forward-looking statements in this news release include, among others, the completion of the exchange offer. Investors are cautioned that any such forward-looking statements are not guarantees of future performance or results and involve risks and uncertainties, and that actual results or developments may differ materially from those in the forward-looking statements as a result of various factors, including the timing of CSC Holdings' completion of the work necessary to determine the amount of any adjustments to its financial statements as a result of its review of stock option and SAR matters and the investigations by the Securities and Exchange Commission and U.S. Attorneys' Office for the Eastern District of New York into those matters, which could delay the consummation of the exchange offer, as well as the factors described in CSC Holdings' filings with the Securities and Exchange Commission, including the sections entitled "Risk Factors" and "Management's Discussion and Analysis of Financial Condition and Results of Operations" contained therein. CSC Holdings disclaims any obligation to update the forward-looking statements contained herein.