Here is some info for anyone wondering what's missing and some information on some of the more confusing entries on the list.
Missing EntriesDragon Ball Z (74) (https://trakt.tv/shows/dragon-ball-z-1989)
Missing Entries ExplainedDragon Ball Z (72/74) & Dragonball (158/160)-IMDb has separate listing for the Japanese Version and the English Dub Version.-They're are 2 listing of each of these shows on trakt but one listing of each show has no episodes due to TVDB not allowing Duplicates .
Missing Entries that are Seasons on Trakt: (IMDB Rank as of date of Comment)I'm assuming Justin runs a Script of some kind to keep this up to date. IMDB has Separate or Duplicate entries for shows, while TVDB Consolidates shows into one entry. Thus causing the below to be missing .
Black-Adder II (93)Black Adder the Third (104)Blackadder Goes Forth (57)The Return of Sherlock Holmes (83)Inside Look: The People v. O.J. Simpson (220)
Missing Entries that are Seasons Explained:
Black-Adder II (93), Black Adder the Third (104), & Blackadder Goes Forth (57)-Listed as Separate Shows on IMDb-Listed on Trakt as Seasons 2-4 of https://trakt.tv/shows/blackadder
The Return of Sherlock Holmes (83)-Listed on Trakt as Season 3 of https://trakt.tv/shows/sherlock-holmes
Inside Look: The People v. O.J. Simpson (220)-Inside Look: The People v. O.J. Simpson is season 1 of American Crime Story (187) . But has a Separate entry on IMDb.
Other/Confusing Entries Explained: (Many may have these marked watched under a different Entry)
The Adventures of Sherlock Holmes (76)-List uses the entire Series of Sherlock Holmes https://trakt.tv/shows/sherlock-holmes-In Actuality it is just Season 1-2 of Sherlock Holmes https://trakt.tv/shows/sherlock-holmes
Battlestar Galactica (Miniseries) (111)-Also Listed on Trakt under specials of https://trakt.tv/shows/battlestar-galactica-2004-Also Listed on Trakt as a Movie
Whose Line Is It Anyway? (173)-This Entry on the list has no episodes-IMDB Entry is for Drew Carey's run of the show-Listed on Trakt as Season 1-8 of https://trakt.tv/shows/whose-line-is-it-anyway-1998
Twin Peaks - A Limited Event Series (178)-Also listed on Trakt as Season 3 of https://trakt.tv/shows/twin-peaks
Nice list, but you have the wrong Game of Thrones. The correct one is https://trakt.tv/shows/game-of-thronesAlso, there are two Cosmos entries for the same show here on trakt (don't ask me why). The more popular of the two is https://trakt.tv/shows/cosmos-a-spacetime-odyssey