 The show ran on the CBS network until 1966, and reruns aired on ABC from 1966 to 1969.In addition to Linus, a rather good-natured "King of the Beasts" who ruled from his personal barber's chair and was voiced by Sheldon Leonard, there were other features as well, all based on characters representing other Post breakfast cereals.The best-known of these was Sugar Bear (Sugar Crisp), who sounded like Bing Crosby and was voiced by actor Gerry Matthews.