By Lise Lalonde
Get some perspective on things to come
Industry observers believe that by 2014, the sale of 3D HDTVs will outstrip those of simply plasma, LCD or LED screens and you can see why. 3D HDTV lets the viewer see moving images in three dimensions, just the way we do in real life. To view full HD 3D content, you need four things: a TV capable of displaying 3D, a source feeding 3D images to your TV plus 3D glasses for each viewer.