What is HDMI port on Apple TV 4K used for?
Basic question I don't find on Apple website. It the HDMI port on the ATV 4K for:
- Output video / audio signal to HDTV
or
2. Input video / audio signal from another source like DVD player and output signal gets to HDTV using AirPlay2 over WiFi?
I'm guessing it's #1, which means ATV 4K doesn't have ability to pass along DVD output.
Next question.
If #1, do I need an AirPlay2 compatible AV Receiver to accomplish sending DVD output video to TV and sound to HomePods?
Thanks