Lost in Space is a science fiction TV series created and produced by Irwin Allen, produced by 20th Century Fox Television, and broadcast on CBS. The show ran for three seasons, with 83 episodes airing between September 15, 1965 and March 6, 1968. Lost in Space was the second of Allen’s four science fiction television series. The show’s first season was in black and white, and the second and third seasons were filmed in colour.

Land of the Giants is an hour-long American science fiction television program lasting two seasons beginning on September 22, 1968 and ending in March 22, 1970. The show was created and produced by Irwin Allen. Land of the Giants was the fourth of Allen’s science fiction tv series. The show was aired on ABC and released by Fox Television. The series was filmed entirely in color and ran for 51 episodes. The show starred Gary Conway and Don Marshall. Author Murray Leinster also wrote three novels in 1968 and 1969 based on the television series.