I realize this may be a bit late, as you're leaving what is now technically today, but:
Give up on the pinball machine. It's not going to fit.
There's no way you're going to fit a 60" TV in that room, either. A 60" TV has a ~54" horizantal area (give or take depending on model), which is 4.5'. That's essentially half of your short wall or 1/3 of your long one. And considering there's 2 people in the room, that's a massive amount of real estate.
I, personally, have
this Samsung, which I love. But at 25.5", even it is sometimes to big to use as a monitor on a small desk and I have to roll my chair back. There's no way you're going to get away with using a 60", unless it's all the way across the long dimension of the room.
I have no experience with Mitsubishi TVs, but I can tell you that Samsung is a quality brand from my experience with them.