What words are hung on the TV wall and what calligraphy is suitable for the living room?

The TV wall, because there is a TV. So don't care too much about the surroundings. Just be concise and lively.

Decorative paintings in the living room can be calligraphy works with banners, or four-character idioms: Top Gun, Kun Peng spreading his wings, carrying things with kindness … or landscape Chinese paintings with banners.

Of course, I like oil painting, which is also a good choice.