The longest running show on WGN-TV Chicago featured sketches, cartoons like Rocky and Bullwinkle, a miniature game show called "Bozo's Grand Prize Game" and more.The longest running show on WGN-TV Chicago featured sketches, cartoons like Rocky and Bullwinkle, a miniature game show called "Bozo's Grand Prize Game" and more.The longest running show on WGN-TV Chicago featured sketches, cartoons like Rocky and Bullwinkle, a miniature game show called "Bozo's Grand Prize Game" and more.