I remember reading a post about someone setting up Jellyfin and some other software and essentially just waiting around a few days after shows come out and they end up being available in their media library. Like, some kind of pirating software that just grabs the right media. Is this a thing or am I misremembering?
Sounds like they are using the “*Arr” software.
The WikiArr had a good break down of how it works
https://wiki.servarr.com/