Various series updated.

[OxyMauron]

Misc series changes, mostly special matched.

AniDB	TVDB/TMDB/IMDB	Notes
https://anidb.net/anime/2504	https://thetvdb.com/index.php?tab=series&id=160621	Season 1
https://anidb.net/anime/2546	https://thetvdb.com/index.php?tab=series&id=363417	Season 1
https://anidb.net/anime/2547	https://thetvdb.com/index.php?tab=series&id=405844	Season 1
https://anidb.net/anime/2549	https://thetvdb.com/index.php?tab=series&id=405890	Season 1
https://anidb.net/anime/3461	https://thetvdb.com/index.php?tab=series&id=111011	Corrected episode offset
https://anidb.net/anime/5376	https://thetvdb.com/index.php?tab=series&id=232991	Special mapping
https://anidb.net/anime/7963	https://thetvdb.com/index.php?tab=series&id=19243	Special mapping
https://anidb.net/anime/9833	https://thetvdb.com/index.php?tab=series&id=74504	Special mapping
https://anidb.net/anime/11351	N/A	labeled as hentai
https://anidb.net/anime/11852	https://thetvdb.com/index.php?tab=series&id=71863	Special mapping
https://anidb.net/anime/12398	https://thetvdb.com/index.php?tab=series&id=275609	Special mapping
https://anidb.net/anime/12701	https://thetvdb.com/index.php?tab=series&id=81110	Season 3
https://anidb.net/anime/12919	https://thetvdb.com/index.php?tab=series&id=26796	Special mapping
https://anidb.net/anime/13006	https://thetvdb.com/index.php?tab=series&id=321820	Special mapping
https://anidb.net/anime/13269	https://thetvdb.com/index.php?tab=series&id=111011	Special mapping
https://anidb.net/anime/13447	https://thetvdb.com/index.php?tab=series&id=379282	Season 1
https://anidb.net/anime/13526	https://thetvdb.com/index.php?tab=series&id=340261	Season 1
https://anidb.net/anime/13591	https://thetvdb.com/index.php?tab=series&id=197261	Special mapping
https://anidb.net/anime/13688	https://thetvdb.com/index.php?tab=series&id=340261	Special mapping
https://anidb.net/anime/13926	https://thetvdb.com/index.php?tab=series&id=340261	Special mapping
https://anidb.net/anime/14501	https://thetvdb.com/index.php?tab=series&id=71863	Special mapping
https://anidb.net/anime/14506	https://thetvdb.com/index.php?tab=series&id=76665	Special mapping
https://anidb.net/anime/14616	https://thetvdb.com/index.php?tab=series&id=71863	Special mapping
https://anidb.net/anime/15297	https://thetvdb.com/index.php?tab=series&id=388485	Season 1
https://anidb.net/anime/16008	https://thetvdb.com/index.php?tab=series&id=392944	Special mapping
https://anidb.net/anime/16047	N/A	labeled as hentai
https://anidb.net/anime/17634	https://thetvdb.com/index.php?tab=series&id=71863	Special mapping
https://anidb.net/anime/18159	https://thetvdb.com/index.php?tab=series&id=379282	Season 2

[BrutuZ]

That's a lot of entries to cross-check. Since they're all new mappings I'll just blindly trust the IDs match 🙈