Animalympics (1980)

Animalympics is a 1980 animated film produced by Lisberger Studios and released by Warner Bros.. It is one of the first animated feature films presented with Dolby sound. Originally commissioned by the NBC network as two separate specials, it spoofs the Summer and Winter Olympic Games, and features the voices of Billy Crystal, Gilda Radner, Harry Shearer and Michael Fremer.

More at Wikipedia.