At 15, Brooke Shields was the youngest ever guest star on the show. Since she was only allowed to work a few hours each day, she spent a lot of her free time in the Muppet Workshop and helped to construct some of the puppets in the "Jabberwocky" scene.
For currently unclear reasons, Disney+ withheld this whole episode from their worldwide uploading of the entire series run, in February 2021. Only one other episode was completely withdrawn.
A confused Fozzie mistakes Alice in Wonderland for The Wizard of Oz and dresses as the Tin Man. Many years later, he would star as the Cowardly Lion in the Muppets' Wizard of Oz.