Adored by the Network: Interestingly enough, when The Hub was first starting up, Fraggle Rock was one of the shows the network was giving a big push in the marketing, probably because it was the most recognizable program on their original schedule. They even had Karen Prell film new footage as Red Fraggle for bumpers between shows. Little did they know a a certain pony show was about to steal every Hub show's thunder. The Hub stopped airing Fraggle Rock in June of 2012 (barring a 3-hour marathon on April 21, 2013 to celebrate the show's 30th anniversary). Reruns resumed on a regular basis on June 4, 2013.
The Character Died with Him: Doc's counterpart "The Captain" in the UK adaptation of the show was only featured in the first two seasons of the show because of Fulton MacKay's unfortunate death. The Captain's nephew P.K. took over the lighthouse in season 3. After P.K. left, for the final two seasons B.J. was introduced as the Captain's son.
The whole postcard where Uncle Travelling Matt tries out "rapid transit" (a roller coaster) is priceless, but check out who's sitting next to Matt on the coaster. It's none other than his puppeteer, Dave Goelz!
Wembley Fraggle sounds like a younger, more innocent Rizzo the Rat — only without the Brooklyn accent. No wonder, since Steve Whitmire played both (and has even described how he had some problems making Rizzo's voice distinct from Wembley's).
The Other Darrin: Ma Gorg was voiced by Myra Fried in the first season, with Cheryl Wagner taking over the role in the second season.
The Storyteller Fraggle was performed by Richard Hunt in her first appearance, with Terry Angus taking over the role after that.
Short Run in Peru: HBO divided the fourth and final season into two very short seasons. Fortunately, although it took an agonizingly long time, the Final Season set has been released!
The fifth episode of the first season "The Thirty Minute Work Week" was actually the very first episode to be filmed; it was shot in March 1982. The pilot "Beginnings" was not filmed until June 1982. The reason was simple: Jim Henson wanted the puppeteers to be comfortable with their characters before doing the very first episode. You can also see that some of the characters look slightly off in "The Thirty Minute Work Week" (most notably Sprocket, the Trash Heap and to some extent Gobo), because several puppets underwent slight design changes after the episode was filmed.