What is 4K? Everything you need to know about 4K Ultra HD
![What is 4K? Everything you need to know about 4K Ultra HD](https://www.digitaltrends.com/wp-content/uploads/2017/04/know-about-4k-ultra-hd-full-hd-1080p-vs-4k-ultra-hd.jpg?fit=720%2C720&p=1)
Ultra HD 4K has quickly taken over the world of TVs, but what is it, how does it work, and should you upgrade or keep your old TV? Let's explore those answers.
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What is 4K? Everything you need to know about 4K Ultra HD
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