The Adventures of Philip Marlowe was a radio series featuring writer Raymond Chandler's private eye, Philip Marlowe, (Bogart's character in The Maltese Falcon). Philip Marlowe. The program differed from most others in its genre: in that It was a more hard-boiled program than many of the other private detective shows of the time, containing few quips or quaint characters. The program first aired 17 June 1947 on NBC radio under the title The New Adventures of Philip Marlowe, with Van Heflin playing Marlowe. In 1948, the series moved to CBS, where it was called The Adventure of Philip Marlowe, with Gerald Mohr playing Marlowe. By 1949, it had the largest audience in radio. The CBS version ran for 114 episodes. That series ran 26 September 1948 - 29 September 1950. SUPPORT OUR SHOW MONTHLY AT PATREON patreon.com/1001storiesnetwork Learn more about your ad choices. Visit podcastchoices.com/adchoices