The 100/120Hz thing on TVs is mostly used internally only to create smoother motion by producing in-between frames of 50/60Hz signals. I would expect that most TVs out there will not sync on anything above 60Hz. Even if they do I don't think you'll find many devices that output 60+ Hz.
Now with regards to a PS3,it will only ouput at the standard frame rates of 50 or 60mhz which NTSC or PAL uses.


