The series was originally aired as 16 serialized installments on The Krofft Supershow (1976). They were later re-edited as eight standalone episodes, which went on to air sporadically on TV and blip on home video. The original "Supershow" edits are generally longer, but there are a few extended shots in the standalone versions. Only Empress of Evil: Part 2 (1976) is unchanged.
The series was originally conceived as an animated series.