The Five Mysteries Program
The Five Mysteries Program is an audience participation radio series broadcast on the Mutual Broadcasting System August 10, 1947 – March 27, 1950. In 1947-48 it aired on Sundays at 2 p.m.
Wikipedia. CC BY-SA 4.0. Updated Mar 2, 2025.
The Five Mysteries Program. Radio program.
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“Today's Radio Program.” New York Times, January 1, 1927.