If you just want to watch on your browser, no setup is required. Just log in at https://jellyfin.enduringguerila.com.

NEED ADDITIONAL HELP? Please ask on the discord server

For actual Jellyfin clients, there are a variety of options. You can view many of the options here: https://jellyfin.org/downloads

After installing the app, you’ll be asked for the host or ip address, just enter jellyfin.enduringguerila.com (if you are feeling lazy, you can save 3 letters and enter jelly.enduringguerila.com, this should auto redirect)

In rare situations, you may be asked for a port number, try 443

If you are running Kodi on a PC, you can set jellyfin up inside kodi! https://jellyfin.org/docs/general/clients/kodi/

If your TV does not support Jellyfin natively

For simple purchase options, you can buy a Roku, Amazon Fire Stick, NVIDIA Shield, etc.

If you want to set something up, you can either build a cheap HTPC (home theater PC) from an old PC you have around or buy a used one

or

basically make your own streaming device just for jellyfin on a Raspberry Pi (or similar boards like an Orange Pi)