I was considering mounting my TV -- an LG OLED 4K 65-inch 2015 model -- and Sonos Playbar on the wall, but have held off (any work you do in a Manhattan apartment tends to be an expensive proposition). When sitting on the couch, the middle of the TV is currently at eye level, so it's well placed.
The couch is about 10 feet away from the TV. There is a shade that blocks the light from coming in.
I stacked the Xbox One on top of the PS4 Pro because the Xbox One S needs to breathe from the top.
Closeup of the two consoles. I use the Xbox One for 4K Blu-rays. I was sad that the PS4 did not offer 4K Blu-ray support.
LG has discontinued 3D support in its latest OLED models. But the 2015 and 2016 models have it (it's the best 3D available).
Top-down view of the Sonos Playbar.
View inside the TV cabinet -- a mess of cables.
Side view of the TV.