https://github.com/jeppevinkel/jellyfin-tizen-builds -- No way around having to enable developer mode for Samsung TVs, sadly, but they do have a client.

Jellyfin also does Music and Ebooks. -- I don't know how well it does this though, as I don't have Jellyfin manage my music, I just use Pandora because I'm too lazy to curate 'stations' and make track lists and stuff.