Active shutter glasses trigger headaches for me, so needless to say, I purchased a passive 3DTV. As a family, the last movie we watched was Hugo 3D on the 65" LG using a Sony BD player. My wife and 9 yo girl couldn't handle wearing the passive glasses throughout the movie. They had to remove the glasses about 10 times to rest for a few minutes. On the other hand, my 12yo girl and I were able to wear them for the entire length of the movie. I do get a headache if the 3D is not done correctly, especially with edge violations.