The Herculoids is a Saturday morning animated television series that was produced by Hanna-Barbera Productions. The show debuted on September 9, 1967 on CBS. Hanna-Barbera produced one season for the original airing of the show, although the original 18 episodes were rerun during the 1968–69 television season, with The Herculoids ending its run on September 6, 1969.
Eleven new episodes were produced in 1981 as part of the Space Stars show. The plotlines are rooted in science fiction, and have story direction and content similar to Jonny Quest and Space Ghost. This series is set on the distant planet Amzot (renamed Quasar in the Space Stars episodes). The name "Amzot" was first mentioned in the Space Ghost episode "The Molten Monsters of Moltar" (in which the Herculoids made a brief guest appearance) and in the series proper in the "Time Creatures" episode.