How to use HDMI ARC feature with Smart TVs
Help library: HDMI ARC connection [television]
Verify whether the TV has an ARC label on one of its HDMI ports
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What Is HDMI ARC (Audio Return Channel)?
HDMI ARC: What is it and how does it work?
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AX110 HDMI 2.1 eARC Audio Extractor - FeinTech
ARC vs eARC: What's The Difference? - History-Computer