Such was the case with 1978's Bugs Bunny's Howl-oween Special. Some of the shorts excerpted in this show had been used in edited form on The Bugs Bunny-Road Runner Show on Saturdays, so the challenge was on parents to recognize where they'd seen certain clips.
We've previously reviewed some of the shorts, such as "Hyde & Go Tweet". You try to figure what comes from where.
No rating. We didn't see this the first time.