Ark II is an American live-action science fiction television series, aimed at children, that aired on CBS from September 11 to December 18, 1976, (with reruns continuing through November 13, 1977 and reruns returning from September 16, 1978, through August 25, 1979) as part of its weekend line-up. Only 15 half-hour episodes were produced. The program's central characters were created by Martin Roth; Ted Post helped Roth develop its core format.