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David Valentine Osper, a longtime executive producer and showrunner for MTV, VH1 and History, has died. He was 47. Opser died December 30 of cancer in Los Angeles. Most recently serving as VP Unscripted Development at MTV, his roster of producing and exec producing credits stretches from the early 2000s to last yea…

William Shatner’s latest television enterprise is for History as the host and executive producer of the new Friday night series The UnXplained, which will seek out extra-terrestrial mysteries but won’t require a Galaxy-class starship to accomplish its small-screen mission. This weekend the Emmy-winning actor and Star T…