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You can buy some foam stickers to stick to the wall, so that it is both beautiful and can be wiped when it is dirty.
The person sits on the sofa with his eyes at a horizontal line with the center point of the TV screen. The height of the TV installed in this way is more suitable. I hope my answer can help you.
When you reach the age of forty, you think you are still young! Pay more attention to rest, you start to take care of your body at this age, your situation is normal, in this fast-paced society, it's no wonder that there is nothing wrong with eating and drinking poison!
It is recommended that the distance between the sofa and the wall be at least a meter.
Look at the whole, if you need a background wall, you can make one, or hang some paintings and other decorations.