“Just bought this tv and connected it to my att uverse cable, roku, and blue ray player. Looks good when playing things from roku, but cable TV looks terrible, even on HD channels. Could it be that the ATT BOX isn't HD? Used 4K cable.”

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• may need to change resolution setting on uverse box. if gray box you should upgrade to the new black box model

  Answered by CWTechnologies 8 years ago

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• Cable does not support the 4K, yet....

  Answered by Drew 9 years ago

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