I have 16TB NAS dedicated to storing TV shows. It is just a cabinet with ryzen 2600 and no graphics card. I have installed openmediavault in it to access it via smb to other devices. I am an absolute noob in setting up a server. Please tell me how I should go on about turning it into a media consumption machine.
P. S: I usually use VLC on android and MPV on linux to consume the media.
Jellyfin or Kodi (FOSS), or Emby (Better than Plex, not FOSS, but developer is very responsive) or Plex (bottom of the rung, corporate money grabbers).
Run one of those on your media server, and grab the client for your phone, or tv device.
TV device can be chromecast, roku, whatever (nVidia shield is expensive but it does support DTS and stuff - if you need that (does your TV room have 6+ speakers?)
Personally, I like Emby. It just works.