you where more than likes hooked up with old school patch cables or VGA cable. while your TV supports those they do not take advantage of the HD of your TV, you might be finding the sound is also better, going to past what a HDMI is,
Short for
High Definition Multimedia Interface,
HDMI is a connector and cable capable of transmitting high-quality and high-bandwidth streams of audio and video between devices. The HDMI technology is used with devices such as an
HDTV,
Projector,
DVD player, or
Blu-ray player. The picture to the right is an example of an HDMI cable.