How to Navigate the World of High Definition

Nov. 5, 2005 — -- More and more TV shows, movies and sporting events are being broadcast in High Definition -- including "Good Morning America." If you want to join the millions who are already experiencing a superior picture, you'll need a High Definition TV. But even if you're ready to retire your old TV -- or move it into the back bedroom where no one will ever see it -- you're bound to have lots of questions before you make an investment in a new drool-worthy HDTV.

You might be wondering about hardware, cost and how to actually receive High Definition programming on your set. "GMA" technology contributor Becky Worley offers this primer to understanding the complicated world of HD.

High Definition TV is a richer transmission of television signals that makes for a more vivid viewing experience. HDTV is to standard TV what FM radio is to AM radio. HDTV is crisp, clear and noise-free, with resolution that is at least twice that of analog television and CD-quality sound.

There are three major terms that will describe the high-end TV sets that are on sale today: