Heathcliff (a.k.a. Heathcliff and the Catillac Cats) 1984 Heathcliff is a Saturday morning animated television series that debuted on September 3, 1984. Plot: Each episode featured two segments, one being about Heathcliff and his friends, while the other featured The Catillac Cats. Trivia: Heathcliff and Riff-Raff never appear together in the same clip except during the closing credits. Produced by DIC Audiovisuel, it was the second animated series based on the Heathcliff comic strip (after Ruby