Guessing the entire series has been added as movies:

https://www.themoviedb.org/movie/555827-sherlock-a-scandal-in-belgravia?language=en-US

https://www.themoviedb.org/movie/557315-sherlock-the-great-game?language=en-US

There seems to be a lot of Miss Marple as well.

https://www.themoviedb.org/movie/478763-marple-the-sittaford-mystery?language=en-US

These are all TV series, just like Dr Who or Morse. Just because they have an episode title, doesn't make them a movie. They aren't even TV specials.

https://www.imdb.com/title/tt1475582/ = TV Series. 4 seasons now.

https://www.imdb.com/title/tt1734537/ = TV Series. 6 seasons now.

Not a lot of point having a TV section, if they are all still in the movie section.

The same user added 7 Sherlock episodes within the last 2-3 months. We always remove bad entries when we find them, but in this case your report was the first. I'll let someone else handle the Miss Marple entries since I'm not too familiar with that series. Thanks for reporting!

She is a bit like Dr Who, in the sense that she regenerates as a different actress every now and then :P

IMDB classes the 80s series as individual TV Movies:
https://www.imdb.com/title/tt0087924/
Mainly I believe due to the time between each one.

The 2004-2013 series is classed as a TV series, since the episodes in each series often come out within a week or so of each other.

The 80s series is basically shown as a TV series these days. e.g. on TV here, you will see them back to back, you can series link them etc. That said, I don't mind them being TV movies.
Given the choice, I would move them all to TV though :P

The 2004-2013 series is classed as a TV series, since the episodes in each series often come out within a week or so of each other.

Sounds good to me. I don't think we need the duplicates. Letterboxd can keep the deleted entries if they want them. (I still wish we had a way to mark TV entries as a series of TV movies.)

The 80s series is basically shown as a TV series these days. e.g. on TV here, you will see them back to back, you can series link them etc. That said, I don't mind them being TV movies.

I removed the badly edited TV entry a while back. BBC has them as a bunch individual TV movies/miniseries adaptions.

I generally feel that if it is a series and it made for TV, then it is a TV series. I prefer to class TV Movies as movies which are straight to TV or a movie from a series where the series aren't movie length episodes.

e.g. Morse, each episode is 1:40mins long. They aren't movies. Each one has a title, still not movies. Sherlock, no. Marple, no. Poirot, no. etc. etc. I don't really see them as movies at all. They are just episodes from a series, with the same core cast etc.

Where I feel as though it is a bit different, is things like Bab 5 and Firefly. Where eps were 1 hour, then you got a one off movie length episode. Obviously, in the case of Firefly, that did get released as a cinema film.
Even then though, I could live without the Bab 5 TV movies in the film section.

Alway a tricky one though.

I generally feel that if it is a series and it made for TV, then it is a TV series. I prefer to class TV Movies as movies which are straight to TV or a movie from a series where the series aren't movie length episodes.

I'm not 100% sure I follow, but most of these series are really difficult to classify. Some TV series like Marple (2004) luckily have seasons and episode numbers. They are often released as individual movie on DVD and/or internationally though. A few film franchises, including the Hallmark ones, have individual film pages and are only released as TV movies. But a lot of these long episodes/films series are in a grey area between a proper series and individual TV movies. They usually are available in both format. And don't get me started on old film series.