"There's no need to fear, Underdog is here!" Underdog was an animated series about a superhero dog named (Well, Underdog). He has a girlfriend named "Sweet Polly Purebread". And his alter ego is "Shoe Shine Boy". Underdog keeps his secret energy pill inside his ring. On the NBC-TV season, The supporting segment is "Tennessee Tuxedo and his Tales", About the penguin named Tennessee Tuxedo and his walrus friend, Chumley. The supporting segments for CBS-TV were "Go, Go, Gophers!", and "Klondike Kat." Go, Go, Gophers had two Indian gophers named Ruffled Feathers (the one who speaks gibberish) and Running Board. Klondike Kat features a Canadian Mountie cat who always catches the mouse named Savior-Faire. Another segment that was featured was The World of Commander McBragg (Aired on Both NBC and CBS). Commander McBragg was originally a supporting segment on Rocky and Bullwinkle.
NBC Season Format:
1. Underdog episode
2. Tennessee Tuxedo and His Tales
3. The World of Commander McBragg
4. Underdog episode continues
CBS Season Format:
1. Underdog episode
2. Go, Go, Gophers
3. Klondike Kat
4. The World of Commander McBragg
5. Underdog episode continues