In briefHDMI 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 ...
If you've bought a TV, soundbar, or AV receiver at any point over the last five years or so, there's a good chance it has an HDMI ARC port. The "ARC" in that moniker stands for Audio Return Channel, a ...