* CriticalDissonance: This particular episode stands out, because while it was savaged by most critics who saw it, many viewers thought it was the best episode of season 4 as of that airing.
* HilariousInHindsight:
** Creator/MattLucas plays Toby, an JustForFun/InspectorSpacetime superfan, who agrees with Abed that the Christmas Special was terrible. From 2015, Lucas played ''Series/DoctorWho'' companion Nardole, whose first two appearances were in Christmas specials.
** Inspector Spacetime had a female incarnation called Minerva, who everybody thought sucked, not because she was a woman but because her era's writing was awful. As of 2018, the Doctor regenerated into a female incarnation, played by Creator/JodieWhittaker. The writing quality of the era has since been hotly debated and contested (though in less part due to Whittaker's performance, and more because of several rather controversial {{retcon}}s), and has resulted in what can easily be describe as one of, if not ''the'' largest case of BrokenBase in the ''Doctor Who'' fandom ever.
** After the release of [[Recap/DoctorWho60thASTheGiggle "The Giggle"]], [[https://www.reddit.com/r/DoctorWhumour/comments/18yski3/community_in_their_glorious_wisdom_predicted_the/ some fans]] were quick to point out the similarities between [[spoiler:the Doctor's bigeneration]] and the Inspector and Reggie's fusion