* AbsenteeActor: Gobo is missing from such episodes as "The Great Radish Famine" and "Believe it or Not", Mokey is absent from "All Work and All Play", "Believe It or Not", "The Challenge", and "The Trash Heap Doesn't Live Here Anymore", Wembley is absent from "Junior Sells the Farm", "The Battle of the Leaking Roof", and "Red's Blue Dragon", Red is absent from "The Trash Heap Doesn't Live Here Anymore" and "The Battle of the Leaking Roof" and Boober is absent from "Capture the Moon", "All Work and All Play", "Junior Sells the Farm", "Doozer is as Doozer Does", and "The Cavern of Lost Dreams".
** In fact, it has been confirmed on the official Muppet wiki that the only character to appear in ''every episode'' is Doc (or his localized equivalent).
** In "Fraggle Wars", ''none'' of Jerry Nelson's characters appeared. The episode explained Gobo's absence by saying he was in the Golden Grotto for the day.
* AdoredByTheNetwork: 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 that ''WesternAnimation/MyLittlePonyFriendshipIsMagic'' 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 [[MilestoneCelebration to celebrate the show's 30th anniversary]]). Reruns resumed on a regular basis on June 4, 2013 until the network became Creator/DiscoveryFamily in October 2014.
* TheCharacterDiedWithHim: 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. ("Principal Keeper") took over the lighthouse in season 3. After [[PutOnABus P.K. left]], for the final two seasons [[SuspiciouslySimilarSubstitute B.J. ("Bertwhistle Jr")]] was introduced as the new lighthouse-keeper.
* CowboyBebopAtHisComputer: The character B.J. has often been referred to as the Captain's son, even on this very wiki. In fact, he's the son of Mr. Bertwhistle, the owner of the lighthouse -- "B. J." stands for "Bertwhistle Jr."
* DevelopmentHell: Dear God, TheMovie!
* EarlyBirdCameo: In Season 1, "The Great Radish Famine," Cotterpin Doozer is first seen as an unnamed baby.
* InternationalCoproduction: With the [[Creator/{{CBC}} Canadian Broadcasting Corporation]] and Britain's [[Creator/{{ITV}} Television South]].
* MissingEpisode: The British localization of ''Fraggle Rock'' suffered this fate, [[http://muppet.wikia.com/wiki/Fraggle_Rock_%28UK%29 when the master tapes were junked]]. An effort led by fan Alex Taylor on the Missing Episodes Forum has [[http://www.nightshade.org.uk/fraggleuk.html confirmed]] that of the 96 episodes made, 29 still have official copies, 58 only have off-air recordings, and nine are wholly or partially lost. This, coupled with the rights hell surrounding the Television South catalogue (which has changed hands several times, and the paperwork confirming who owns what has been lost in the shuffle), is why there's never been a DVD release.
* NamesTheSame: Mokey shares her name with [[WebAnimation/MokeysShow a loud, psychotic version of Mickey Mouse created by]] Creator/SrPelo.
* OutOfOrder: 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, and was the tenth episode filmed. 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.
* TheOtherDarrin:
** 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.
** After Jerry Nelson died, [[Theatre/AvenueQ John Tartaglia]] took on the role of Gobo for all subsequent appearances of the character, starting with [[Creator/DiscoveryFamily The Hub]]'s 30th anniversary marathon in April of 2013, and an appearance at the Museum of the Moving Image the next month.[[note]]Tartaglia's ''actual'' first filmed appearance as Gobo might have [[http://www.toughpigs.com/nasa-mohawk/ actually been]] a promo video commissioned by [[Podcast/NerdistPodcast Nerdist]] and featuring NASA's Bobak Ferdowsi, but the video never got uploaded.[[/note]]
* ShortRunInPeru: [=HBO=] divided the fourth and final season into two very short seasons. The DVD release combines them both [[http://www.tvshowsondvd.com/news/Fraggle-Rock-Easter-DVD/12772 back into a single season.]]
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