"Hercules and the Big Show" is an episode in Hercules: The Animated Series.
After Hercules and Icarus humiliate Hades on the Merv Griffin show by screening some of Hercules' career highlights and defeats of Hades, the Lord of the Dead gives Hercules the boot, capturing Merv and Icarus. He then turns the show into The Hades Show where he highlights his victory after convincing Poseidon to extend the River Styx so that Greece was part of the Underworld; there is also a segment featuring Pain and Panic. Adonis and Helen are invited on the show, and Adonis supports Hades by showing how he has humiliated the hero. Helen, however, defends Hercules in a musical number about his exploits. Hercules meanwhile borrows Hermes' flying sandals and frees his friends. Zeus lends him a thunderbolt, and he smites Hades, reverting the show back to Merv Griffin. Zeus and Hercules are guests, and the show runs out of time just as Merv asks Zeus the meaning of life.