Showtime was launched on July 1, 1976, on Times-Mirror Cable systems in Escondido, Long Beach, and Palos Verdes, California. By the end of its first year on the air, Showtime had 55,000 subscribers nationwide. In 1982, Group W Cable, a subsidiary of Westinghouse Electric Corporation, sold its 50% stake in Showtime back to Viacom for $75 million. As of September 2018, Showtime's programming was available to approximately 28.567 million U.S. households.
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