You try it and use what looks best to you. Not all humans are alike so each of us tries something and then chooses.
Just got a new 4ktv, watching shows on netflix in full 4k. I want to know if i should turn the clean view on or off when watching HD or 4k.
I use it with cable when watching sports or ESPN because it does seem to help a little , dont know if it makes a difference in actual 4k.

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