Henson Special help

[Squall Leonhart]

Hi guys, I remember seeing a special when I was a kid where Jim Henson walked down steps from Labyrinth, the muppets where there and at the end they were shocked when they turned off the blue screen. Anybody know what this is?

 

[Vic Romano]

Sounds like it's the "Secret of the Muppets" episode of the Jim Henson Hour. KermieClown has a great video trade page that's worth checking out and he has this special (I should know, I got my copy from him!).
Kermie Clown's Video Trade