Even earlier, he was famous on radio as a 10-year-old Quiz Kid.

Quiz Kids has been revived five times since the original television series:

Quiz Kids is played by two teams of three players each.

Beginning in 1945, he was heard on radio's Quiz Kids.

What ever happened to the Quiz Kids anyway?

Okay, Quiz Kids, at that rate you'll be ready for quantum theory and wave mechanics before long.

Brown had also appeared on the radio game show Quiz Kids.

As a child he was famous on radio as a "Quiz Kid."

Watson appeared on Quiz Kids, a popular radio show that challenged bright youngsters to answer questions.

In 1942 he began the program for which he is now best remembered, The Quiz Kids.