Optimum Lightpath Extends 'Switch Now & Save Thousands' Offer to Cover Metro Ethernet Conversion Costs.

JERICHO, N.Y. -- Overwhelming Success of Marketing Campaign Highlights New York Metro Area Business Customers' Interest in Adopting New Technologies to Dramatically Lower Monthly Bills

The highly positive response from the business community in the New York metropolitan area to its 'Switch Now and Save Thousands' marketing campaign has prompted Optimum Lightpath(R), the business telecommunications services division of Cablevision Systems Corporation (NYSE: CVC), to extend the promotion until January 31st, 2006.

"Our goal, in extending the 'Switch Now and Save Thousands' campaign for another month, is to give even more businesses in the region the opportunity to use Metro Ethernet to dramatically improve performance, while realizing considerable cost savings compared to what they are currently being charged by 'traditional' telephone companies," said Dave Pistacchio, executive vice president and general manager of Optimum Lightpath.

Launched in October for a period of three months, the goal of this campaign was to encourage businesses across the New York metropolitan area to switch from their traditional telecommunications services to the unsurpassed reliability, efficiency and performance of Optimum Lightpath's Metro Ethernet voice and data communications services.

To achieve this, the campaign raises awareness of the dramatic cost savings possible through Metro Ethernet, while also lowering existing barriers to converting to the new technology through incentives that address the costs of converting to Metro Ethernet. As part of the promotion, Optimum Lightpath offers businesses across the metropolitan area a credit for up to $7,500 for conversion costs (i.e., installation fees, router costs, professional services, software, hardware, etc.), while also paying for the necessary fiber link to pre-qualified buildings - incentives that could be worth more than $30,000 to each business customer.

"We are extremely pleased by the terrific reaction to our 'Switch Now and Save Thousands' campaign," said Phil DeCabia, Optimum Lightpath's Senior Vice President of Sales. "The rate of response has already exceeded our initial goals, clearly demonstrating that businesses throughout the New York metropolitan area are interested in improving their ability to compete by utilizing dramatic increases in capacity to transform their networks, while also reducing their overall telecommunications costs by thousands of dollars."

Businesses interested in learning more about Optimum Lightpath's new Metro Ethernet services promotion can visit http://www.metroethernetnow.com/ or call 1-877-LIGHTPATH.

About Optimum Lightpath

Optimum Lightpath, a business telecommunications services division of Cablevision Systems Corporation, uses the power of its own reliable and resilient fully fiber optic network to deliver converged, IP-based data, Internet, and voice solutions to businesses throughout the New York metropolitan area. Over the past 17 years, Optimum Lightpath built an advanced Fiber-to-the-business-Premises network that has over 2400 route miles of fiber optic cables throughout the tri-state area. As a result of owning and maintaining this state-of-the-art network, Optimum Lightpath can better ensure the enterprise customer's quality of experience, while delivering reliable, high bandwidth business communications services at lower prices. Optimum Lightpath now provides its customers with scalable, high-capacity IP-based Metro Ethernet services (E-LAN and E-Line) to support high bandwidth data, Internet and voice applications, while also delivering highly personalized customer service unparalleled by traditional telephone companies.

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 Optimum 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.