CITV The Epic Tales of Captain Underpants Catch up on the ITV Hub Animated comedy featuring two friends who re-imagine their headmaster as a superhero. 2 episodes available to watch Share this programme: Copied to clipboard Share on Facebook Share on Twitter Copy link to share Series 1 Latest 5. Captain Underpants and the Terrifying Perilous Misfortune of the TP Mummy Fri Friday 10 Jan 5pm George and Harold are banned from buying toilet paper to stop them pulling a huge prank. 4. Captain Underpants and the Vexing Villainy of the Vile Vimpire Thu Thursday 9 Jan 5pm Erica becomes the latest villain in the comic.