What is a good refresh rate on a 4k TV?

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4. What 50hz means?
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7. Is 60hz or 120hz better?
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Tags

1. #number
2. #budget
3. #refresh
4. #since
5. #there
6. #anymore
7. #actually
8. #increase
9. #hardware
10. #higher
11. #240hz
12. #anything
13. #takes
14. #expensive
15. #120hz