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Hace 14 horas · History Early years (1976–1982) Showtime was launched on July 1, 1976, on Times-Mirror Cable systems in Escondido, Long Beach, and Palos Verdes, California through the conversion of 10,000 subscribers of the previous Channel One franchise. Exactly a week later Showtime launched on Viacom Cablevision's system in Dublin, California; the channel was originally owned by Viacom.
