Winchell's most successful TV show was "Winchell-Mahoney Time" (1965–1968), a children's show written by his then wife, actress Nina Russel. Winchell played several onscreen characters, including Knucklehead Smiff's father, Bonehead Smiff. He also played himself as friend and adult advisor to Mahoney and Smiff. He also created "Mr. Goody-good," a surreal character, by painting eyes and a nose on his chin, covering his face with a small costume, then having the camera image inverted. The resulting pinheaded character seemed to have an immensely wide mouth and a highly mobile head. Winchell created this illusion by moving his chin back and forth. The show was produced at KTTV in Los Angeles, which was owned by Metromedia.