PC control over ethernet adapters

I'm looking to connect my PC in my home office to my living room TV. Right now I'm looking at unpowered usb over cat5/6 and powered HDMI over cat5/6. Both of the adapters say they're good for ~150' and I'd be doing a 40' cable run with pre terminated cat6. Cost of about $70 for adapters and cable on amazon.

I've wired a garage and build my own PCs so I'm not afraid of the install but I have basically no networking experience. I'm aiming to play single player games from my couch and I don't know if something like this is going to be an enjoyable experience or if there is a better way without breaking the bank.