Most of Jack Benny's original radio cast appeared on television with him, including Don Wilson, Eddie 'Rochester' Anderson, Dennis Day, and his real-life wife Mary Livingstone made several guest appearances. In one episode, Jack dreamed that he and Mary (his platonic friend on the show) were married and had a teenage daughter. Their daughter was played by their real daughter, Joan Benny.
A 1952 spoof of Gaslight (1944), Autolight (1959) co-starring Barbara Stanwyck, proved to be so popular that Jack Benny wanted to rebroadcast it. Legal wrangling with MGM resulted in this not happening until 1959.
Theme song is a standard violin étude written by Konradin Kreutzer. It's the second one in the famous Kreutzer book.
In the early years, this was originally titled "The Lucky Strike Program" after the show's sponsor, Lucky Strike cigarettes, which had also sponsored Jack Benny's radio program. The 16mm television syndication prints had the title cards replaced with ones that gave the title as either "The Jack Benny Program" or "The Jack Benny Show". Footage of Benny welcoming the audience to "The Lucky Strike Program" remained intact.