What size LCD TV is best for an 18-square-meter living room? What color is the TV background wall suitable for LCD monitors?

At present, the main means of family entertainment are watching TV, watching DVDs, singing karaoke, etc., so the TV wall in the living room becomes the focus, and the TV should not be too small. The 18-storey house should be optimally configured between 30-40 cm. The TV background wall is generally in a more elegant or cooler tone. Bedrooms facing the south, where there is plenty of sunlight, can use cooler tones, while bedrooms facing north can use warmer tones. The color tone is mainly reflected through the floor, walls, and ceiling, while decorations, furniture, etc. only play the role of adjustment and supplement. My suggestion is to better bring out the color of the LCD TV, which is yellowish, light and natural wood yellow.