http://www.youtube.com/watch?v=OpR1ntz-G0U
No, I’m not talking about the Canadian sci-fi horror film Cube, but a TV collaboration between Jim Henson and Jerry Juhl made for NBC in the late 1960’s about a man who wakes up in a white cube-shaped room and discovers that he can’t escape, although other people can both enter and leave. Even though it doesn’t feature any puppets, this clip is just oozing with classic Henson charm, as all the gags and witticisms are very Muppet-like in nature. Loads more clips from The Cube can be found on the official Youtube channel of the Jim Henson Company!