Comment by amiga386

I bit the bullet years ago and just have separate folders for the two, using recommended naming conventions.

I realised it doesn't improve my life, to care about folder structure and naming, so much that I insist on retaining it and hobbling the media browsing frontend. The media browser brings in massively more metadata than I would have personally collected and encoded into the filepath/filename, and makes it nicely hyperlinked and searchable. Screenshots, posters, backdrops, cast, director, ...

You may think differently. In which case, enjoy your UI being a series of nested folders.

I do have a minimal level of categorisation, e.g. I can have filesystem paths like /tv/comedy /tv/drama, and then I have one "TV Shows" library made of multiple paths, including both /tv/comedy and /tv/drama. So I see the categories but Jellyfin doesn't have to.

What I have for mixed media are Jellyfin's Collections, where I can mix together films, TV series, music, books on any given topic. That's not accounting for TV show "specials" which live with the TV show, if TheTVDB.com honours it thusly.