In "Pizzaz", the Easter egg at the end of the toon shows a concept for a TV show called "The Strong Bad", whose theme song shares many traits with the show's
In "Dangeresque 3", the scene of the two Dangeresques climbing up the "skyscraper" is a parody of The Bat Climb, a running gag from the old Batman TV series
In "For Kids", the kids heard shouting the answers to Strong Bad's questions are taken from the show Blue's Clues. Strong Bad's show is actually a strange reversal of Blue's Clues; in Blue's Clues the kids know all the answers to the questions asked but the host is completely clueless