What Does Each TV Port Do?

HDMI 1 of 11

Trying to hook up an HDTV can be a daunting task if you don't know what all those different cables are supposed to do. Find out what each port on your TV does and how to use them effectively!

The most important port on any modern TV is the High Definition Multimedia Interface (HDMI). This port has only existed for a decade or so, and it's used to transmit high definition video and audio signals. To be specific, it supports 1080p video quality and 8-channel surround sound audio. This port is now the standard for almost any audiovisual device.