Someone posted a thing on here a while back about a boffin with a modded Wii remote tied to his head which told a computer where his head was and displayed a picture accordingly. That was absolutely amazing but as the guy in the vid said, it only works for the wearer of the wiimote, and of course the picture was computer generated on the fly, there was no way you could film a tv show and have it give the same effect. Personally I rather like those red-blue 3d images you have to wear glasses for, I think the effect is great. I remember back inthe 80's they had a 3d night on Ch4 or something which I was well impressed with, but it has obviously never taken off.