said by BoulderHill1:
120hz is just simply TV trickery that essentially repeats the image twice as fast.
TV is itself just "trickery" in how it helps the eye see motion. 120Hz (24*5, 30*4) does help smooth out the motion--more "trickery" for the eye--to make up for the problems introduced by the initial trickery of interpolation and pull-down. It had a more noticeable effect on older slower panels than it seems to now, but I still notice an occasional, slight difference between 60Hz and 120Hz. As such I'd buy a 120Hz TV over a 60Hz TV if it doesn't cost too much more.--
"Face piles of trials with smiles; it riles them to believe that you perceive the web they weave."