Breakfast in Hollywood aired on the Blue Network from 1941 to 1948. The show originated daily from Tom Brenneman’s restaurant in Hollywood and featured Brenneman walking through the restaurant, chatting up the mostly female, and frequently tourist patrons.
In 1946, Harold Schuster made film by the same name, using the show (and Brenneman) as a backdrop for a series of intertwined melodramatic stories. You can watch on YouTube, or download it from The Internet Archiv.
The Breakfast in Hollywood radio show ended in 1948, soon after Brenneman’s untimely death.