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Captain Video and His Video Rangers is an American science fiction television series, which was aired on the DuMont Television Network, and was the first series of its kind on American television. The series aired between June 27, 1949 and April 1, 1955, originally Monday through Saturday at 7pm ET, and then Monday through Friday at 7pm ET. A separate 30-minute spinoff series, The Secret Files of Captain Video, aired Saturday mornings, alternating with Tom Corbett, Space Cadet, from September 5, 1953 to May 29, 1954 for a total of 20 episodes.