In 1969, Greenwald was a member of the repertory company of the TV series "Turn-On," a multimedia presentation satirizing sex, politics, and everything else, splattered across the screen at blinding speed. One producer called it "a visual, comedic, sensory assault involving animation, videotape, stop-action film, electronic distortion, computer." Rejected by CBS because it left test audiences physically "disturbed," it was also turned down by NBC. ABC aired it on 5 February 1969, and it was cancelled 10 minutes into the first show, making it the shortest running US TV series on record. Greenwald formed E/G Films with Denny Evans, and they produced the short film GOOD MORNING (1971).  Nominated for Short Subjects (Live Action Films) 1971: GOOD MORNING - Producer (w. Denny Evans) 1 nomination