McGrath talks of a "frame rate" of 50 or 100 MHz. In the US, it's multiples of 60, probably because electric power is 60 MHz. I've read that movies have a 24 frames per second refresh rate, and television has a different rate. In the US, they've been pushing 120 and even 240 MHz refresh rates, since both are multiples of 24.
I dunno. My LCD televisions are 2 and 3 years old with 60 MHz refresh rates, and they're just wonderful. I'm happy with 1080p LCD. It's supposed to use less electricity and have a longer life than plasma. You see fewer and fewer plasma sets in the stores these days.

-Joe-