This juvenile adventure series was first broadcast on Mutual in 1940 with Clayton (Bud) Collyer starring as Superman/Clark Kent. It first began as a fifteen-minute show but later, in 1949, it moved to ABC as a thirty-minute Saturday show with Michael Fitzmaurice as Superman. At the end of its thirteen-year run it had totalled over 1600 episodes. The opening for the show was one of radio’s best, setting the stage for those flights into fantasy with a cascade of voices, narration and sound effects. “Faster than a speeding bullet! More powerful than a locomotive! Able to leap tall buildings at a single bound!” “Look! Up in the sky!” “It’s a bird!” “It’s a plane!” “It’s Superman!”