Jumping off those links from TVTropes, there is Continuity
and Continuity Tropes
. Particularly of interest in Continuity Snarl
This is particularly a problem for comic books, especially in the DC Universe and the Marvel Universe, which have the long-running and tangled continuities of many a character to keep straight. Long-running TV franchises can also suffer from Continuity Snarls — the Doctor Who and Star Trek universes have gotten especially snarled over time (although the former can easily Hand Wave this away because it's about time travel).
and since this is the Tech section of the board there is a strong focus on Continuity Porn
(for better or worse).
Kudos for TVTropes to recognize the Star Trek universes for it