Plot: Prehistoric Planet is a re-version of the BBC's Walking with Dinosaurs and Walking with Beasts series, done by Discovery Channel and NBC for the Discovery Kids network. Though the producers kept nearly all of the original animation, David Bock and Peter Sherman wrote new text for a younger target audience, narrated by Ben Stiller and Christian Slater, and interspersed the scenes with occasional quizzes to act as bumpers around the commercial breaks