I think 3d full time would be terrible !

I don't want my TV 3d ! At most, maybe some movies, some games, and maybe sport (if I watched it). Certainly not for kids - kids have no need for that.

Surely it won't be 3d all the time though? And I still would like to see a quality study on the effect of 3d on depth perception - my intuition is that it is probably identical with a normal (long) movie going experience (we all feel a bit disoriented after being immersed in "another world" for a while).

Certainly on the food/medical side - that is where the issue lies mostly, and I think that is where the energy should be better spent.