The Adventures of Sam Spade was a radio series based loosely on the private detective character Sam Spade, created by writer Dashiell Hammett for The Maltese Falcon. The show ran for 13 episodes on ABC in 1946, for 157 episodes on CBS in 1946-1949, and finally for 51 episodes on NBC in 1949-1951. The series starred Howard Duff (and later, Steve Dunne) as Sam Spade and Lurene Tuttle as his secretary Effie, and took a considerably more tongue-in-cheek approach to the character than the novel or movie. In 1947, scriptwriters Jason James and Bob Tallman received an Edgar Award for Best Radio Drama from the Mystery Writers of America. Before the series, Sam Spade had been played in radio adaptations of The Maltese Falcon by both Edward G. Robinson (in a 1943 Lux Radio Theater production) and by Bogart himself (in a 1946 Academy Award Theater production), both on CBS.THIS EPISODE:October 31, 1948. CBS network. "The Fairly Bright Caper". Sponsored by: Wildroot Cream Oil. Spade is hired to protect a Halloween party, which is only slightly complicated by a witch and a murder! Howard Duff, Lurene Tuttle, Dick Joy (announcer), Dashiell Hammett (creator). 29:28.