Cablevision Systems Corporation Announces Regular Quarterly Dividend On Preferred Stock.

Business Editors

BETHPAGE, NY--(BUSINESS WIRE)--September 7, 2001

Cablevision Systems Corporation (NYSE:CVC) today announced quarterly dividends on CSC Holdings, Inc.'s two series of preferred stock:

-- 11 3/4% Series H Redeemable Exchangeable Preferred Stock - ($2.9375 per
preferred share paid in cash)

-- 11 1/8% Series M Redeemable Exchangeable Preferred Stock - ($2.78125 per
depositary share paid in cash)

The record date for dividends on the two issues of preferred stock will be September 21, 2001. The payment date will be October 1, 2001.

Cablevision Systems Corporation is one of the nation's leading entertainment and telecommunications companies. Its cable television operations serve more than 3 million households located primarily in the New York metropolitan area. The company's advanced telecommunications offerings include its Lightpath integrated business communications services and its Optimum-branded high-speed Internet service. Cablevision's Rainbow Media Holdings, Inc. subsidiary operates programming businesses including American Movie Classics, Bravo, Fox Sports Net and other national and regional services. Cablevision also owns a controlling interest and operates Madison Square Garden and its sports teams including the Knicks and Rangers. The company operates New York's famed Radio City Music Hall and owns and operates THE WIZ consumer electronics stores and Clearview Cinemas in the New York metropolitan area. Additional information about Cablevision Systems Corporation is available on the Web at www.cablevision.com.