Your sound system is probably plugged into the wrong HDMI port — here's why

You might not be taking full advantage of your sound system as not all HDMI ports work the same. Learn about the features and ...
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HDMI ARC and HDMI eARC: everything you need to know

HDMI ARC (Audio Return Channel) and eARC remove the need for a separate audio cable when sending sound from a TV to a compatible soundbar or AV receiver. For more, see what is HDMI ARC? HDMI eARC ...

Does it matter which HDMI port you use on your TV? Short answer: Yes

Yes. Most TVs have three or four HDMI ports, with a typical layout that you can follow, but it's still a good idea to check your ports to ensure compatibility. For example, older Samsung models ...
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3 Common Myths About HDMI Ports Debunked

You finally unboxed that new TV or gaming console, only to be greeted by a row of identical-looking HDMI ports on the back. They all look the same, so it's easy to assume they all work the same. That ...