The power of a cable company to dictate their selection to clients became relevant today when Showtime movies disappeared from the largest US cable provider, Time Warner Cable. The power of a cable company to dictate their selection to clients became relevant today when Showtime movies disappeared from the largest US cable provider, Time Warner Cable. At home and as a tourist in a hotel room, don’t look for CBS and Showtime these days. Showtime Networks’ customers nationwide have had their services disrupted by Time Warner Cable today. In addition, effective 5:00 PM Eastern Time, Time Warner Cable has dropped CBS in New York City, Los Angeles, Dallas and several other markets.