The Cat in the Hat (TV special) After MGM stopped animation production and closed down its animation department for good in 1970, production was moved to DePatie–Freleng Enterprises (marking the company's first Dr. Seuss television special), which was run by Jones' fellow Warner Bros. Cartoons alumnus Friz Freleng and WB's last original production executive David DePatie. Although Chuck Jones and his staff were retained by DePatie–Freleng in the production of the special, Jones left the studio and did not work on any other Seuss projects after "The Cat in the Hat". Other staff members that have worked with Jones such as Dean Elliott and Maurice Noble eventually
The Cat in the Hat for the series, including "The Cat in the Hat Comes Back" (1958), "Green Eggs and Ham" (1960), "Hop on Pop" (1963), and "Fox in Socks" (1965). He initially used word lists of limited vocabularies to create these books, as he had with "The Cat in the Hat", but moved away from the lists as he came to believe "that a child could learn any amount of words if fed them slowly and if the books were amply illustrated". Other authors also contributed notable books to the series, including "A Fly Went By" (1958), "Sam and the Firefly" (1958), "Go, Dog.