Episode 174 aired on CBS Radio September 24, 1945. Host Marvin Miller for Signal auto products.  The Whistler is one of American radio's most popular mystery dramas, with a 13-year run from May 16, 1942 until September 22, 1955.The Whistler was the most popular West Coast-originated program with its listeners for many years. It was sponsored by the Signal Oil Company: "That whistle is your signal for the Signal Oil program, The Whistler."