Warner Bros. Television is the television production arm of Warner Bros. Entertainment, itself part of Time Warner. Alongside CBS Television Studios, it serves as a television production arm of The CW Television Network , though it also produces shows for other networks, such as Shameless on Showtime and The Closer on TNT . The division was started on March 21, 1955 with its first and most successful head being Jack Warner's son-in-law William T. Orr. ABC had major success against its competition with Walt Disney's Disneyland and approached Warner Bros. initially with the idea of purchasing... the studio's film library . WB formally entered television production with the premiere of its self-titled anthology series Warner Bros. Presents on ABC. The one hour weekly show featured rotating episodes of television series based on the WB films, Casablanca and King's Row, as well as an original series titled Cheyenne with Clint Walker.
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