Just about every TV accessory needs an HDMI cable, but not all of them can output 4K. Here's how to tell if yours is capable.

There are a few Apple TV HDMI settings that you can tweak to improve your television's picture quality and improve your Apple ...

If you're connecting a device from across the room, you might need to get a pretty long HDMI cable. Be careful of getting one that's too long, though.

I decided to write this article the first time I saw another writer say "HDMI is digital - it either works or it doesn't." Then I saw that statement get repeated over and over. The problem is that ...

Keeping your electronics clean is generally important for keeping them functional, but should you clean your TV's HDMI ports?