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The Starlost is a Canadian-produced science fiction television series devised by writer Harlan Ellison and broadcast in 1973 on CTV in Canada and syndicated to local stations in the United States. The show's setting is a huge generational colony spacecraft called The Ark, which has gone off-course. Many of the descendants of the original crew and colonists are unaware, however, that they are aboard a ship. The series experienced a number of production difficulties, and Ellison ended up disowning it before the first episode even aired.