The Mighty Hercules is an animated television series based loosely on the Greek mythology character of Heracles, under his Roman name Hercules. It debuted on television in 1963. The show ran until 1966, coinciding with the sword-and-sandal genre of films popular between 1958 and 1965. Each stand-alone episode runs 5½ minutes, and in syndication was aired either as part of a block with other cartoons, or with several episodes airing consecutively to fill 30-minute time slots.