So you want to share photos, watch videos, or play computer games on the expansive screen of your HDTV? On one hand, this is a really simple how-to: use HDMI! That, of course, isn't the whole story.

Practically every modern device connects to a screen via HDMI, but not every HDMI cable supports 4K resolution output. If you have a 4K TV or monitor, you'll need a cable with the right HDMI version ...

HDMI technology incorporates both video and audio through the same cable without the need for an additional audio connection. This differs from the VGA and DVI formats, which only allow video and ...

These days, if you need to connect two devices via wire, you'll most likely use HDMI. This display protocol supports all sorts of device pairings. It lets you use your iPhone with an external display, ...

It may be tempting to economize and reuse old HDMI cables until they break, but that may not be a great idea. Here's why you ...

A reader asks Dr. A why he can't view some of his material on the TV he bought. Lots of people run into this problem, so we figured we'd take it to Dr. A for a solution. Q: I have an HDTV that only ...