we've got a 3DTV in at work. Not worth it IMO for a overpriced gimmick. The additional cost to make programmes or films in 3D is higher so only think for some time that this will be more of a niche thing unless you like sky sports.
Picture only look like 2D but split into 3d planes and who can be arsed wearing glasses to watch TV. You get headaches after 90mins of watching anyway as the flickering of the glasses starts to annoy the brain.