Additionally, you could snag an Nvidia Shield TV (Android set-top box) and hook that up to your TV, then run either the Nvidia software (if you have an Nvidia card) or the open-source Moonlight variant of it, or the Steam Link application (if you're using the Steam version of FFXIV), and just stream from your computer to the Android box. Streaming isn't ideal, no, but if you have both the computer and the set-top box connected to Ethernet (rather than using WiFi), the performance is actually quite good.

When I had busted up my foot and had to keep it elevated, I played PC games that way from my bed for a bit.