The television ceiling mount is probably going to work out, but there are problems to solve. The worst was the short power cord on the ceiling mount. It’s a wall wart power supply with a permanently attached wire and a proprietary connector. The cord is far too short to reach the ceiling mount from the wall receptacle directly below it — a shockingly bad bit of design. More understandably, the TV power supply (a brick with a 12-inch long power cord) also has a permanently-attached cable that won’t reach the ground, or even a table top, from the ceiling.
One option might be to cut the supplied power cables and splice in longer wires. That would look ugly and be tricky. We’d also still have many cables running from the floor or a table up the wall to the ceiling and over to the TV: HDMI from the set top box, power for the ceiling mount, power for the TV, and HDMI (ARC) from the soundbar. That’s four cables, two of them fat. That’s a lot to run along the wall, and the house is single-wall so there isn’t any way to run the cables inside the wall.
The better solution seemed to be to mount the TV power brick (upper left), the ceiling mount wall wart (upper right) and the set top box (lower right) on the back of the TV using Velcro tape. The cabling could then all be dressed and hidden behind the set. I ran a single, two-wire extension cord with three receptacles along with a single HDMI (ARC) cable (white to match our walls) from the back of the TV to the ceiling, then along the ceiling to the wall, then down the wall. I’ve ordered a cable raceway to route the cables where they’d be visible on the wall, and with just two cables to deal with a small one will do.
—2p