- Was abandoned as an infant and subsequently adopted by a preacher and his wife, John and Mary Linkletter.
- Is in the San Diego State University Hall of Fame as a basketball player. Also tried out for the 1936 Olympics as a swimmer.
- His hugely popular show Kids Say the Darndest Things actually started out as a segment on an earlier show called House Party.
- The popularity of Kids Say the Darndest Things led to a series of books of the same name which were illustrated by Charles M. Schulz, one of the rare non-Peanuts projects he worked on.
- Has never had an agent or a business manager.
- At one point, had shows on all three existing television networks at the same time.
- Was a close friend of Walt Disney and was asked by Disney to host the opening of his theme park, Disneyland.
- Was named Ambassador to Australia by President Ronald Reagan.
- Received a Daytime Emmy for lifetime achievement in 2003.