Actually, I stand to be corrected, but I'm pretty sure you do still have to wear the glasses. I was checking out a 3D TV in a store the other day, and they had the glasses there to wear to get the effect.
To make it worse, I think they're specific to the particular TV you have. In other words, if you have a 3D TV and a friend of yours does too, you cannot bring your glasses to his house, or vice versa, for it to work. Unlike Avatar in the theatres, where the glasses were all the same, the TV's apparently are different than this somehow.
I agree with an earlier poster, I'm not wearing glasses around my house just to watch TV, just for an effect that is over-rated anyway. Give me a good quality HD plasma, LCD, or LED TV, and that's perfectly fine.