 Rosencrans conceived the idea of a cable system after BOT purchased TelePrompTer in 1956 with the goal of expanding its closed-circuit programming.In 1961, he and other investors began acquiring cable systems in smaller towns.In 1975, Rosencrans' Columbia Cable Systems (which later became UA-Columbia Cablevision) invested nearly $100,000 to become the first cable operator to install a satellite receiving station.