sentences:  This occurred when the ownership structure was reorganized under a joint operating agreement by the UA-Columbia Cablevision cable system (now known as Cablevision Systems Corporation) and MCA (then the parent of Universal Studios, now owned by NBCUniversal).Things took a step further one year later when, Time Inc. (which eventually merged with Warner Communications to form Time Warner) and Paramount Pictures Corp. (then a division of Gulf+Western, now owned by Viacom) took minority ownership stakes in USA in 1981.G+W also owned the New York Knicks and the MSG regional sports television network (both later owned by Cablevision, but spun off in 2010).