QUOTE(YiQi @ Sep 25 2008, 03:47 PM)
Actually, Plasma does not hide Astro's artifacts. Most Plasma TV have better engine to scale-up 480i signal into the Panel's Native Resolution.
LCD's engine so bad that it create lots of artifacts, in conjunction with the Motion Blur effect, it looks worst.
Tranditional CRT TV looks fine just because it display 480i exactly what it get from Astro.
So, technically, a very good up-scaling device will make Astro PQ better but not much because Astro give you high compression data already which is so bad. (G-I-G-O)
Actually, that's not entirely true. Most Plasmas have an inferior engine compared to some LCDs (notably Philips and Sony). It is very obvious when you are viewing HD content through both.
However, Plasma's superior blacks coupled with the pixel structure design produces somewhat softer picture with deeper color. This 'softness' is what hides the artifacts. It's there, just not so obvious. If you switch up to a Monster Cable, you will see it more obviously, especially if you also upscale to 1080p.
LCDs, on the other hand, are just bleedingly sharp with high contrast, and because you don't have a screen-door effect like plasma, artifact-ridden areas tend to get all mushy into each other. To over-ride this, most LCDs will have a more powerful noise reduction system, so it will look smoother, but you lose detail.
Mainly, it's all in the pixel design of the 2 competing technologies.