Whoa there, Hoss!
by Dr. Planarian - 12/15/07 4:26 AM
The item to which this is a reply is a very disinformative post.
120 Hz is NOT a 120 ms framing rate! 120 Hz comes out to an 8.3 ms refresh time. An LCD screen like the Sony XBR4's with a 4 ms latency can easily handle this. As far as I know, no commercially available television has a refresh rate faster than 120 ms.
This, however, has nothing to do with pixellation. Only a few of the most recently released television sets refresh this rapidly.
Television signals are sent at a rate of 30 frames per second. It doesn't matter what the source of the TV signals might be, whether over the air, through a cable, from a satellite provider, whatever. NTSC television pictures run at 30 fps. Always.
The advantage of 120 Hz is that it can also handle content from sources like Blu-Ray players capable of transmitting movies at their native 24 fps. The number 120 is evenly divisible by both 24 and 30, so no movie frames need to be repeated as each fifth one must be when shown on a regular 60 Hz television.
But none of this relates to pixellation in any way whatsoever.