"Uncle Croc's Block": — A one-hour comedy - satire combining live action and animation in a lighthearted spoof of some of the most familiar children's programs. The live action focuses on Charles Nelson Reilly as Uncle Croc, a disgruntled actor in a crocodile costume, and his guests, who include Captain Marbles, CooCoo Coneival, and Bigg Egg, who drops in from "Sesame Seed." Animated segments include original new cartoons featuring "Fraid E. Cat," the nervous feline who has already used up eight lives; "Wacky and Packy," a Neanderthal pair who find themselves wandering about the modern world; and "M-U-S-H," for "Mangy, Unwanted, Shabby Heroes." The series was produced by Filmation.