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https://tv.zol.com.cn/869/8690264.html
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At present, almost all TVs with 50 inches and above in the market have popularized 4K resolution. If your home TV has not been upgraded to 4K resolution, it seems that it has lagged behind. However, have we really watched real 4K content? I'm afraid that most people will answer in the negative. Before answering this question, we first need to understand what 4K is. 4K is actually a video resolution standard. When TV is on