To Tell the Truth/YMMV
- Ear Worm: The 1969-78 theme. Ba-Ba-Buh-Ba-Buh-Ba-Buh-Baaaa! Ba-Ba-Buh-Ba-Buh-Ba-Buh-Baaaa!
- Funny Moment: In one episode involving contestants who had birds, Cullen remarked that he would excuse himself from the round because he had seen one of the contestants in the restroom. When asked how he knew it was one of the contestants, Cullen replied that "He had his bird in his hand!"
- Memetic Mutation: "Will the real [person's name] please stand up?". See also Weird Al Effect.
- Replacement Scrappy: Robin Ward on the 1980s version, who was generally hated for his stiff demeanor.
- Weird Al Effect: People today are more likely to assume the phrase "Will the real [person's name] please stand up?" is from Eminem's "The Real Slim Shady" than this show.
- What Do You Mean It Wasn't Made on Drugs?: The 1969-71 "psychedelic" set.