I've seen a 3D TV in the flesh, which works without glasses of any kind. The 3D is very impressive, and images really do seem to float in the air in front of the screen. You have to be standing in the right places to get the 3D effect (this isn't as restrictive as it sounds, there are many places you can be standing, and they each allow enough flexibility that moving your head won't stop the effect working). The TV wasn't for sale, just a demo of things to come, but was on show in Harrods electrical department about 5 months ago. It may well still be on display - I haven't been in there since.
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I've seen a 3D TV in the flesh, which works without glasses of any kind. The 3D is very impressive, and images really do seem to float in the air in front of the screen. You have to be standing in the right places to get the 3D effect (this isn't as restrictive as it sounds, there are many places you can be standing, and they each allow enough flexibility that moving your head won't stop the effect working). The TV wasn't for sale, just a demo of things to come, but was on show in Harrods electrical department about 5 months ago. It may well still be on display - I haven't been in there since.