This HDMI port is almost always off-limits to your Apple TV

Your TV is packed with different HDMI ports, so I don’t blame you for not knowing the difference between them all. It gets even more complicated once you start reading the different things on the back of your TV. You’ll see things like HDMI 2.0, 2.1, and eARC. Each of these ports do a different thing, and the problem is that your Apple TV 4K will largely work the exact same no matter what port you select.