Gregg Seibert Appointed Vice Chairman of Cablevision Systems Corporation

  Gregg Seibert Appointed Vice Chairman of Cablevision Systems Corporation

        Seibert to serve as Vice Chairman and Chief Financial Officer

Business Wire

BETHPAGE, N.Y. -- March 11, 2013

Cablevision Systems Corporation (NYSE: CVC) today announced the appointment of
Gregg Seibert to vice chairman. In addition to this new leadership position,
he will continue to serve as the company’s chief financial officer, reporting
to James L. Dolan, Cablevision president and chief executive officer.

Gregg Seibert, Vice Chairman and Chief Financial Officer, Cablevision Systems
Corporation (Photo: Bu ...

Gregg Seibert, Vice Chairman and Chief Financial Officer, Cablevision Systems
Corporation (Photo: Business Wire)

As vice chairman, Mr. Seibert, 57, will collaborate with Mr. Dolan and the
senior management team on the formulation and implementation of Cablevision’s
overall strategy, helping to position the company for long-term success in an
increasingly competitive marketplace. He will work closely with Hank Ratner
who also serves as a vice chairman of Cablevision.

Mr. Dolan said, “Since joining Cablevision four years ago, Gregg has played an
instrumental role in helping to guide the company’s transformation through a
number of strategic initiatives, including the spin-offs of The Madison Square
Garden Company and AMC Networks. He has successfully addressed a multitude of
challenges and opportunities, consistently focusing on identifying ways to
build value for our shareholders. I look forward to Gregg’s ongoing
contributions in this important new role.”

Mr. Seibert will continue to serve as Cablevision’s chief financial officer,
overseeing the company’s financial and accounting matters, as well as its
investor relations, treasury, taxation, risk management, and business
development activities.

Before joining Cablevision in 2009, Mr. Seibert spent two decades at Merrill
Lynch working on various financial and strategic transactions for companies
across a number of industries. His work included banking activities for some
of today’s top media companies such as Cablevision, Comcast, Liberty Media,
News Corporation, and many others. Mr. Seibert’s last position prior to
joining Cablevision was senior vice president and vice chairman of Merrill
Lynch, which he joined in 1989 as a managing director and head of the Global
Media Group.

Mr. Seibert received his MBA from the Wharton School of the University of
Pennsylvania.

Cablevision Systems Corporation is one of the nation’s leading media and
telecommunications companies. In addition to delivering its Optimum-branded
cable, Internet, and voice offerings throughout the New York area, the company
owns and operates cable systems serving homes in four Western states.
Cablevision’s local media properties include News 12 Networks, MSG Varsity and
Newsday Media Group. Cablevision also owns and operates Clearview Cinemas.
Additional information about Cablevision is available on the Web at
www.cablevision.com.

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Contact:

Cablevision Systems Corporation
Kelly McAndrew
(516) 803-2351
kmcandre@cablevision.com
or
Lisa Anselmo
(516) 803-2362
lanselmo@cablevision.com