What height should the sockets be on the TV wall?

Other objects in the room would not interest me anyway, as the TV hides them. Better plan with the specific(!) TV mount so that it also fits over the sockets and that the sockets are positioned according to the TV’s connections. Also take into account the mounting points on the TV. Nowadays, these are no longer centered on the back panel but at the bottom, as the electronics are located there and the TVs are thin at the top. Many TVs nowadays have external power supplies to make the device itself appear slimmer. That also needs to be accommodated somewhere.

Especially if the TV is to be mounted as flat as possible on the wall, I would now choose/measure a specific mount and a specific TV model or the existing one and plan it exactly. Otherwise, it can go wrong. If the TV’s speakers are to be used, consider that their effect requires a wall behind the device. That means if you want to use a swivel mount, plan for an external sound source directly. Also provide empty conduits or speaker sockets directly in the wall for that!

I planned the sockets so that I can use the room for other purposes as well. All sockets are at floor level, so that the TV can be placed elsewhere sometimes-

Height so that as little cable as possible is visible.

How did you ultimately resolve the story and are you satisfied?

In the end, I had the sockets installed almost a bit too high. The TV connection is now at 1.50m height; the large TV covers it, but 1.20m would easily be enough. The lower ones are at 35cm above the finished floor, which fits.

However, I must say that a satellite socket was also installed in the area of 35cm, so that the TV can be placed on a sideboard if needed, instead of hanging as it is with us now.