One of many attempts to turn fans of Universal’s Classic Monsters into Saturday morning cartoon viewers, Groovie Ghoulies was a huge hit after its 1970 debut, thanks in part to a well-conceived ...

It is based on the lovable but mostly mediocre 1940s-’50s cartoon series, “Casper the Friendly Ghost,” in which a winsome little spook who wanted only to be loved kept scaring the pants off ...