Those puppets amaze me. They put in working eyes, and a mouth that can enunciate, like they were trying for good puppetry, but then stick the head on a giant, bloated body and use awful wrinkly gloves for hands. As for the quality, of the puppetry, well, that speaks for itself.
You can buy these VHS tapes on Amazon. Some are around $10, but volume 1 will run you $84.99.