H.R. Pufnstuf was really a very popular show when it was new and in syndication. From what I've read, the reason that there were only 17 episodes was because they ran out of money and couldn't afford to keep it going with the standards that the Krofts wanted. For example, Sid and Marty wanted to keep the show on film instead of tape. The very last episode is mostly a bunch of flashbacks because they couldn't afford to make anything new. The premise was that Jimmy got amnesia and everyone was bringing up old times to help him get his memory back. After the show had gone off the air in the early 70's, the reruns came on every weekday morning, all 17 episodes one after the other. I doubt if the new movie will be as good, because part of the magic was the whole era that it was made, but I will definitely go see it.