Muppet Babies - Season 4 - Eps 5: Journey to the Center of the Nursery
After Fozzie's skate key falls down the air vent the kids go looking for it. The kids use the closet as an elevator. At each level they go down they find stranger and stranger things. The reason it's so important that Fozzie find his skate key is because he's still wearing his skates! He can't get them off! Throughout the episode Fozzie goes wheeling and sliding all over the place!
About Muppet Babies

Title: Muppet Babies
First Air Date: 1984-11-05
Last Air Date: 1990-12-29
Status: Ended
Rating: 7.958/10 (from 119 votes)
Language: EN
Seasons: 7
Total Episodes: 107
Network: CBS
Genres: Animation, Kids
Production Companies: Jim Henson Productions, Marvel Productions
Synopsis
The Muppet Babies (Kermit, Piggy, Gonzo, Fozzy and company) live in a large nursery watched over by Nanny. The babies have active imaginations, and often embark upon adventures into imaginary worlds.
Cast

Frank Welker
Baby Kermit / Baby Skeeter / Baby Beaker (voice)

Laurie O'Brien
Baby Piggy (voice)

Russi Taylor
Baby Gonzo (voice)

Greg Berg
Baby Fozzie / Baby Scooter (voice)

Dave Coulier
Baby Animal / Baby Bunsen (voice)

Katie Leigh
Baby Rowlf (voice)

Barbara Billingsley
Nanny (voice)