... The Adventures of Philip Marlowe took to the radio airwaves in the summer of 1947. The initial episodes didn’t quite gel and NBC quickly yanked the show. But, a year later, CBS revived the radio production with new writers and actors, and, by 1949, the show had the largest radio audience in the U.S. Thanks to the Internet Archive, The Adventures of Philip Marlowe can now be accessed online for free. Find them on the IA site.The Internet Archive features 105 episodes of Philip Marlowe, built around Raymond Chandler’s best-known protagonist, each of which runs just under half an hour in length.
(Hat tip to Spinetingler Magazine.)