I have absolutely no problem watching TV in 3D, can do for hours, and have also never had a problem with motion sickness, but after trying black ops in 3D i was done in about 30minutes. Gave me a bad headache and just felt funnyI might of been a mixure of concentrating so hard on particular spots of the TV (which you don't really do with movies/programs), mixed with the 3D that caused this.
i tried Black ops in 3D at work, it made me feel sick to, i thought the gun floating around was odd, and it made the game really hard to play, it also made the graphics look worse which shouldnt be possible.