Basically yeah

Yes and no. They do have some connections to NZB, but primarily used for torrents.

Search on sonarr for TV > add series to sonarr > search for series by episode or season > sonarr asks prowlarr (or jackett) to search torrent providers > find and add episode or season > prowlarr finds torrent and sends to sonarr > sonarr sends torrent to your torrent client to download (I use qbittorrent) > done.

If setup correctly, once the download is finished, sonarr will copy the series to your media server folder so it's accessible from plex/jellyfin/emby/what have you.

It does leave the initial files in the torrent software for seeding purposes. I'm sure there is a setting in there somewhere to disable that, but always seed!

The search can be entirely automated too. Handful of apps integrate with sonarr/radarr so you can have your server users request shows and sonarr would find them and add them automatically for you.

You can also specify release type in quality and specifically if it's a rip or HDTV recording, assuming the provider reports that which most do.

Lastly, you can specify by size ranges. It takes a good while to find something you like, but to keep your server from filling up, you can limit the max size for a single episode or movie (in radarr).

My only real complaint is the automated search in sonarr is by episode so you can get a mixed back of quality that way. You can manually search for an entire season. It can't correctly deal with a full series release on its own so some manual work would be needed there.

It's effort for sure, but worth it.

Nah, also newsgroups/newsservers. Also pretty much 'Arrr mateys.'

Nah, also newsgroups