“I am asking specifically about the 75" 75R646. Which HDMI ports are capable of 4k @120? Which HDMI ports supports eARC?”

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• The HDMI 1 & 2 ports support 4k/120 (HDMI 2.1), one of which also features eARC. Hope this helps! Thank you, TCL Customer Support

  Answered by TCLExpert 4 years ago

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