Latest Value Enhancement From Optimum Online®: Essential PC Maintenance Protection From PCCare® At N

Maintenance & Security Protection Software Developed By Digiticians Joins Complimentary Online Security Tools Available Exclusively To Optimum Online Customers At

BETHPAGE, NY - September 7, 2005 - Optimum Online®, the New York metropolitan area's fastest and most reliable broadband service for the home, today announced that PCCare®, a new automated software application that improves the reliability and performance of personal computers, is now available exclusively to Optimum Online subscribers at no additional charge.

Developed by Digiticians®, a leading provider of automated managed computer services, PCCare relieves the time consuming, yet necessary, task of maintaining the PC by automatically running a series of tasks including hard drive cleaning and defragmenting, scanning for anti -virus software updates and deleting unneeded Internet, or temp files that cause sluggish processing time, errors and crashes.

'Optimum Online provides the New York metropolitan area's fastest, most reliable high -speed broadband service, and we are pleased to further enhance our customers' online experience with PCCare software, which will help improve computer performance,' says Patrick Donoghue, Cablevision's vice president of digital television and broadband development. 'Providing a proactive, automated maintenance and management solution builds upon Cablevision's commitment to providing innovative solutions that enhance the value of our broadband service for all of our Optimum Online customers.'

PCCare joins Optimum Online's comprehensive selection of software applications designed to provide essential protection and optimal PC performance at no additional charge. Additional tools available to Optimum Online customers include a full suite of antivirus, firewall and parental control software from Computer Associates. All PC protection and security tools are available for download at, a consumer portal which provides a gateway to the very best in broadband content, multimedia programming, local information, convenient access to round -the -clock award -winning technical support and much more.

'It has been a pleasure to work with Cablevision and combine our talents and resources to create software that addresses a growing demand among average PC users to make their PC work more efficiently,' says Anne Marie Biernacki, founder and chief technology officer for Digiticians, which developed PCCare in 2002. 'Consumers don't want to spend hours on PC maintenance. They don't want to run five different utility software tools themselves. They want PC maintenance and management to be automatic.'

Optimum Online, the New York metropolitan area's fastest and most reliable high -speed Internet service, is more than three times faster than DSL. With maximum downstream speeds of 10 Mbps, 1 Mbps upstream, Optimum Online received the highest overall rating in the 17th Annual PC Magazine Reader Satisfaction Survey of Internet service providers, and won the coveted PC Magazine Reader's Choice Award.

About Optimum
Optimum, Cablevision Systems Corporation's (NYSE: CVC) suite of advanced digital cable services includes iO: Interactive Optimum digital cable, Optimum Online high -speed Internet and Optimum Voice digital voice -over -cable. Built upon the company's state -of -the -art, fully rebuilt network, Optimum delivers the most highly reliable and comprehensive voice, high -speed Internet and video packages available throughout the New York metropolitan area. All Optimum services have achieved industry -leading penetrations with more than 1.7 million iO customers, or nearly 58 percent penetration of cable customers, more than 1.5 million Optimum Online customers at 34 percent penetration of homes -past and 478,000 Optimum Voice customers, with more than 1,000 new voice customers each day. Optimum customers receive unprecedented value from Optimum's award -winning digital cable service, the nation's top rated high -speed Internet service and a dependable and feature -rich voice service.

About Cablevision
Cablevision Systems Corporation is one of the nation's leading entertainment and telecommunications companies. Its cable television operations serve 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 Lightpath integrated business communications services. Cablevision's Rainbow Media Holdings LLC operates several successful programming businesses, including AMC, IFC, WE and other national and regional networks. In addition to its telecommunications and programming businesses, Cablevision owns Madison Square Garden and its sports teams, the New York Knicks, Rangers and Liberty. The company also operates New York's famed Radio City Music Hall, and owns and operates Clearview Cinemas.

Jim Maiella 516 -803 -3947
Marie Stenberg 516 -803 -2352

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