So I experimented with gaming from the couch last night. Not sure if I like it. The physical setup I figured out is ok, just a piece of plywood on my lap for the keyboard and mouse. The issue is because the TV is far it's not as immersive as a monitor that's close up, and text is harder to read. I hope that's not just my vision getting bad again though... but I was 20/20 last I got checked a few years ago. I imagine I'm due for another checkup soon, I usually get a card in the mail.
I'll try it out again today though, as it's a combination of things to get used to, different keyboard, different mouse, different posture etc. I can always just sit closer to the TV but then I have to rearrange furniture. Of course, this may also just be an excuse to get a bigger TV like a 75" or something.
Over all I still prefer gaming at a desk I think though, it's just that all KVMs suck and are flaky etc, and I need one if I want to game at my desk since my main machine is linux. And no a VM won't work, most games don't run in a VM, at all, like it won't even load. I've tried.