Battle of the Planets (1978) is the Westernize adaptation of the 1972 Japanese animated television series known as Kagaku ninja tai Gatchaman. Of the 105 original Gatchaman episodes, 85 were used in the Battle of the Planets adaptation, produced by Sandy Frank Entertainment. The adaptation is generally faithful to the plot and character development of the original Gatchaman series, but significant additions and reductions were made in order to increase appeal to the North American juvenile television market of the late 1970s.