Posted ByLarry Mayer on June 18, 2002 at 13:02:20:
I read somewhere (probably in one of the Jack Benny Biography books) that the NBC chimes were created for the Jack Benny show, to be used to keep Jack Benny's timing to come out to a half hour. If his show ran short NBC played the chimes and if it ran on time, the chimes were eliminated.
Anyway have more on this?
Larry Mayer--KUSC Radio, Los Angeles