Jim Henson's Red Book Blog has been posting some facinating historical footage of the Muppets. These are two particully interesting pieces...
Jim Henson created a TV pilot in 1969 based on Johnny Hart and Brant Parker’s Wizard of Id? Watch the rare excerpts posted below and then read more background about the project on the superbly curated Henson Company blog:
Also check out the advert for Aurora toilet tissue from the mid 60's with a delightful patomime hand by Frank Oz.