I know that Arc stands for Audio Return Channel, but I cant find a cliffs notes on what exactly that means.
Does it mean its the best HDMI port to use for music/high quality audio?
In: 41
Best think of it this way: the HDMI ports in your TV are *inputs*, i.e. you can feed video and audio signals *into* the TV to be displayed.
Now, the ARC port has a special trick up its sleeve: it can also *output* audio to whatever device is connected there. And it always outputs exactly the audio signal that the TV would also play on its speakers.
Obviously, e.g. your BluRay player has no use for such an audio signal – but there are devices which have: in particular a sound bar can use this signal to play the audio that your TV plays.
In short: this is a simple way to connect your sound bar to your TV with the same kind of cable that you use for all the other connections.
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