Seemingly the lost 9 episodes have been found π
https://tvforum.uk/tvhome/tvs-archive-fraggle-rock-inserts-discovered-46415
βAn effort by fan Alex Taylor to track down the episodes in whatever format is available has confirmed that at least 29 episodes exist in broadcast quality, with 87 episodes existing in some form. 9 more episodes recently have been found as of December 2020, confirming that the entire series now exists in some shape or form.β
https://lostmediaarchive.fandom.com/wiki/Fraggle_Rock_(Missing_UK_Version_Episodes)
Would love to see the episodes found to date (have the DVD releases)π€