The Apple TV 4K isnt a one way street when it comes to HDMI cords, and although your device might support HDMI 2.1 speeds , it doesnt mean your TV does. You might notice that your TV has several HDMI ports, and those are not all created equal. One of your TV HDMI ports, if it a newer model, is likely labeled as ARC or eARC. You want to plug your Apple TV 4K into that if it an option. Your eARC port on your TV is the gateway to getting the most out of your Apple TV 4K. It actually applies to all...
