Cablevision Systems Corp, the fifth-largest US cable operator, has agreed to buy Bresnan Communications for USD1.36 billion, according to a report carried by Bloomberg. Cablevision competed against bids from TPG Capital, BC Partners, Suddenlink Communications and Ascent Media Corp. Bresnan Communications was founded in 1984. The company initially operated cable systems both in the Upper Midwest and internationally, before focusing on the Rocky Mountain states.