I hated this show when I was a kid. That was back in the day when kids show characters actually had accents, not just the bland, generic, General American Dialect we're used to. Jack Wild had a British accent and Pufnstuf's was southern. Like one of the others mentioned, though, I never quite understood what the deal was with the witch wanting the flute. That always seemed odd to me, probably because the flute just annoyed me and I wouldn't have gone to any trouble to take it away!

Just a comment on the similarity of Pufnstuf to early 70s McDonalds commercials that others have mentioned: Pufnstuf ripped off McDonalds. At the height of McDonalds popularity, the TV show (or rather, their creators) sought to license McDonalds characters for their show, but when McDonalds declined the TV show changed the characters slightly and passed it as their own. They even hired former employees of McDonalds ad agency and the voice actors to make the TV shows. McDonalds sued and won. Search for Pufnstuf McDonaldland lawsuit and you'll find plenty of articles about it.