Ark II is an American live-action science fiction series, aimed at children, that aired on CBS, beginning on September 11, 1976 and ending on December 18, 1976 (went into reruns through November 13, 1977, but was returned on September 16, 1978 and ran all the way through August 25, 1979), as part of its weekend line-up. Only 15 half-hour episodes of Ark II were ever produced. The program's central characters (see below) were created by Martin Roth; Ted Post helped Roth develop its core format.