 The 1980s saw a boom in the diversity of comic book art and now there is no single "house style" in Superman comics.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.