BETHPAGE, N.Y.--(BUSINESS WIRE)--Cablevision Systems Corporation (NYSE: CVC) today announced that Bret Richter has been elevated to the position of executive vice president, corporate finance & development. He will continue to report to Cablevision vice chairman and chief financial officer, Gregg Seibert. In his expanded role, Mr. Richter oversees financial strategy and development, corporate financial planning, business planning, and mergers and acquisitions for the Company. He is also res