It's an optional action. When you have ARC-supported equipment, join an HDMI cable towards the ARC-enabled HDMI port within the Tv set and an ARC-enabled audio product (soundbar). It sends the audio through the TV on the audio device to simplify the set up and cut down cable muddle. https://cruzzrjox.designertoblog.com/67599200/single-status-certificate-india-reddit-for-dummies