CHICAGO--(BUSINESS WIRE)--Fitch Ratings has placed the 'BB-' Issuer Default Rating (IDR) for Cablevision Systems Corporation (CVC) and its wholly owned subsidiary CSC Holdings, LLC (CSCH) on Rating Watch Negative. In addition, Fitch has assigned recovery ratings and placed the specific issue ratings assigned to CVC and CSCH on Rating Watch Negative. A full list of ratings follows the end of this release. The Negative Watch arises from the September 17, 2015 announcement by Altice N.V. (Altice)