The Bozo Show.

The Bozo Show is a locally produced children's television program that aired on WGN-TV in Chicago and nationally on what is now WGN America. The series is a local version of the internationally franchised Bozo the Clown format and is also the longest-running in the franchise. Recognized as the most popular and successful locally produced children's program in the history of television, it only aired under this title for 14 of its 40+ years: other titles were Bozo, Bozo's Circus, and The Bozo Super Sunday Show.