Jack Armstrong, the All-American Boy was a radio adventure series which maintained its popularity from 1933 to 1951. The program originated at WBBM in Chicago on July 31, 1933, and was later carried on CBS, then NBC and finally ABC.
A short Jack Armstrong animated TV pilot was developed by Hanna-Barbera for a proposed television series. However, when negotiations for rights to the characters collapsed, the planned series was reworked into what became the animated adventure Jonny Quest (1964). Some of the Jack Armstrong footage survived in the closing credits for Jonny Quest.