It's not your fault, but it is very likely that you're using the wrong HDMI cord to plug that 4K Apple TV or PS4 Pro into your new TV. While you might have assumed that all HDMI cords are equal they are, unfortunately, not.
Tagged With cords
I bet you own a few cords. You might have so many cords that they burst out behind your TV stand or below your desk. Play video games for any length of time and you'll acquire all sorts of cords you don't know what to do with. For just a few bucks you can rein that mess in though and make some sense of the cyberpunk sprawl lurking behind your TV or monitor.