“Richard Diamond, Private Detective” was a radio drama series that aired from 1949 to 1953, starring actor Dick Powell as the titular character. The show followed Diamond, a suave, quick-witted private investigator, as he solved crimes and interacted with his secretary, Helen Asher, and Lieutenant Walt Levinson of the New York Police Department. One of the show's trademarks was its use of music, with Powell singing the show's theme song and other songs throughout the episodes. The show was also known for its comedic elements, often featuring Diamond's wisecracks and humorous...