B.C. The First Thanksgiving (1973)
The Mad Magazine TV Special (1974)
Created by Mad's Usual Gang of Idiots in 1974, the pilot episode was deemed too crude to air. It's crude all right, crudely drawn! Zing!
NIGHTCAP with Bakshi and Bluth (1982)
Animators Ralph Bakshi, Don Bluth and Larry Elin (Tron) discuss animation on NIGHTCAP with Calvin Trillin and Studs Terkel