If you consider Feng Shui, can the TV background wall in the living room be decorated with a large tea mirror?

It is okay to use mirrors, but don’t use brown ones

From a Feng Shui perspective, mirrors cannot block clean things. Many people are willing to place a small round mirror outside the window for a similar reason. It is also possible to hang mirrors in the entrance hall and the place opposite the door of the living room. Brown is darker and belongs to Yin. If you are a Yang house, hanging a brown mirror is unlucky, and if you are a Yin house, it is bad luck.