One option you might consider is that some short throw projectors can also be mounted below the screen projecting up. If yours has that option you could potentially put it behind the furniture.

Given the screen in the wall in the bottom half of the picture I’m guessing it’s a short-throw projector, which get mounted directly above the screen and project mostly down rather than the more traditional kind that get mounted away from the screen and project forward towards the screen.

They’re just trying to avoid moving the top of the screen down to provide space for the projector.

“Boob light” is a pretty generic term for those lights that have a round glass cover (the boob) held in place with a little decorative nut (the nipple). Just search Google Images for “boob light” and you’ll get the idea..