Fraggle Rock mentioning names of performers, employees, different productions, and other pieces of inside information.

Fraggle Rock

Picture Description
FR101 letter from
Doc receives letters from Caroly in "Beginnings", Kermit in "Don't Cry Over Spilt Milk", and Duncan in "All Work and All Play".
FR dog names Rowlf
In "Red's Club," Doc and Sprocket are compiling a list of dogs to be in Sprocket's club; one of the names mentioned is Rowlf.
Postcards.206
The Traveling Matt sequence in "Boober's Dream" includes a clip from The Dark Crystal. It's the scene where Jen and Kira ride the Landstriters.
The Traveling Matt sequence in "Sir Hubris and the Gorgs" shows children dressed as Kermit and Miss Piggy for Halloween.
FR Clark-McElcheran Dog Feeder
In "Junior Sells the Farm", Doc orders the Clark-McElcheran Dog Feeder, referring to the show's two special effect gurus: George Clark and Tim McElcheran.
FR220 Sesame toys
The Traveling Matt sequence in "A Cave of One's Own" features Bert and Oscar the Grouch plush dolls in the playroom of two little girls. Also a Kermit plush can be seen on top of the dresser. A Scooter plush was also seen in a little girl's arms in the background in the Traveling Matt segment from "Mokey's Funeral".
The Swedish Dog
In "The Cavern of Lost Dreams," Sprocket does an imitation of The Swedish Chef while inventing a cereal -- complete with theme song hum and "Bork bork!"

Fraggle Rock (animated)

Picture Description
Bigvfragglerock
A recurring gag through the entire series involved a Fraggle hunting for worms. In episode 111 (Red's Drippy Dilemma), the worm collector is captured by Big V, in reference to the classic "Glow-Worm" sketch.