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Radio

The first adaptation of Superman beyond comic books was a radio show, The Adventures of Superman, which ran from 1940 to 1951 for 2,088 episodes, most of which were aimed at children. The episodes were initially 15 minutes long, but after 1949 they were lengthened to 30 minutes. Most episodes were done live. Bud Collyer was the voice actor for Superman in most episodes. The show was produced by Robert Maxwell and Allen Ducovny, who were employees of Superman, Inc. and Detective Comics, Inc. respectively.