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.

Typically, you would use an HDMI cable to connect a streaming device, laptop, or gaming console to a single display. But what if you want to show that same content on multiple TVs or monitors? That's ...

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, ...

HDMI ports do more than connect cables. From audio routing to wireless displays, lesser-known HDMI gadgets can quietly expand what your setup can do.

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 ...