".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".