Raymond Chandler'scelebrated hard-boiled private eye, Philip Marlowe, made his radio debut in1945 on the Lux Radio Theatre with "Murder, My Sweet", starring Dick Powell. Two years later, NBC brought the character to the air in his own weekly series starring Van Heflin: The New Adventuresof Philip Marlowe. A summer replacement for The Bob Hope Show, the series was short-lived, ending September 9,1947. CBS revived it in 1948 with TheAdventures of Philip Marlowe, starring Gerald Mohr. With producer/director Norman MacDonnell at the helm, the series captured the largest audience in radio by 1949. Scripts were by Gene Levitt, Robert Mitchell, Mel Dinelli, and Kathleen Hite.