ATC aired a story by Lynn Neary on Batten, Barton, Durstine and Osborne, a venerable ad agency, and how they're adapting to modern advertising. Jack's used as an intro to the clip riffing on the agency name, with I think Bea Benaderet as a telephone operator. Not sure which program it's from, but apparently BBDO actually was in charge of advertising on at least one permutation of Jack's show, not sure if it was Jell-O, or Lucky Strike.
Link: http://www.npr.org/templates/story/stor ... d=10061997