For live tv listings, there are companion apps like Ersatztv and Tunarr (easier to use than Ersatztv but less features) which feed into the live tv section in Jellyfin. You create 24/7 “tv stations” running whichever collection of local media files you wish to have in a “channel”. It’s great if you plop down and can’t decide what to watch, or want to replicate the look and feel of childhood cartsoon, right down to inserting 90s ads in between episodes.
You can use Ersatztv to create an automatically updated playlist, based on a Trakt or IMDB list. Back in the day, there was/is a a cool addon for Kodi called “PseudoLiveTV” and these apps replicate this functionality.
So you can have an always updated Christopher Nolan collection, Halloween movies, westerns, 24/7 90s cartoons, BBC nature documentaries or whatever.
You can pull any imaginable tv or movie list from Kometa using Ersatztv:
See here for one idea: https://youtu.be/Ibaj6NiS8xM?si=eiPhTzZuwGAwa8Id