Of Muppets and Men is a 1981 documentary about the Muppets. If you've never seen shots of what goes on behind the puppets to create the magic, here is your chance. Seeing the human actor behind each of the puppets is a little surreal. There is a glimpse into all parts of the show. Lot's of fun.
A companion book to the show is available that is out of print but still available used if you are interested. The show has been broken up into six parts all available on YouTube. I linked all six on this post. Enjoy.
[via Monsters and Rockets]
[Image captured from video: Of Muppets and Men]