blitzer320 said:
somewhere I heard that as long as your tv outputs 120hz that it is 3d ready and all you need is the glasses is this true
It's a different technique sadly
A 100Hz tv would even be sufficient (for 50hz display which isn't too bad).
In school we have this (older?) technique where all you need is 100 hz and shutter glasses that blocks out each eye at the right time... works really good!
oh, and also some sync device. pretty much like the guitar hero dongles for example. so the glasses know when it should block which eye. really easy tech and wouldn't need people to buy new tv's.. but that's why that tech isn't used... they wanna sell new tv's!
The 3d tv's that is used now are polarized or something, where you bend and block the lightwaves instead... => needing a new tv...