Hello! I would like to recommend to everyone one of the few utilities I've found in the last few years which blew my socks off, called x2x [0]. It is a small console program you can use to link your X session with a remote session (over SSH), so that you can move your mouse off your current laptop (or whatever) desktop and onto the remote "TV computer" desktop, and type things into that desktop with your keyboard. I'd been dreaming about this for years before I randomly stumbled on it. You can run it and just forget about it since it isn't literally streaming a series of JPGs like VNC. I've been using it with ZERO problems now for a couple of years exactly for this purpose.

[0] https://github.com/dottedmag/x2x