I recently picked up an Xreal Air 2 with Beam attachment. Expensive, but it projects a private a wide screen TV wherever I go in the form of oversized sunglasses and an iPod sized device. Very wide, 330 inch is possible, though I find 105 inch more than enough.
I wanted it for long trips as a passenger on ground or air transport. Download some entertainment, run games, or stream if you're on ground transport, and you're in your own little theater.
I find my self using it at home daily as well. Much larger and clearer than our flat screen TVs, and doesn't disturb TW if she wants to sleep before me, unless I'm watching something that makes me laugh.
It's pretty anti-social. You're the only one who can see or hear what you playing, though I've let wife and daughter check it out so they understand what I'm doing when I'm using it. I tend to leave it upstairs during the day when we're doing stuff together.
Also when I'm using it at night I face the bedroom door and it can be disorienting when someone walks in through your TV.