Now that you mention it, I saw it too but just out the corner of my eye. If I looked directly at it, it was okay but if I looked off to the side I could see a flicker. I wonder what the difference is between the two. I know the plasma uses gas to make colors and the LCD uses some sort of electrical charge (had all this explained to us). But the mirror thing, I’ve forgotten. But it seems the LCD is the bigger seller.
The flicker in your peripheral vision vs. in your central vision is a function of the anatomy of the human eye; rods have shorter persistence of vision than cones and there are more rods/less cones in your peripheral vision.
DLP (mirrors thing) is for projectors and projection TVs only, not flat panels. The only company making actual projection screen TVs anymore is Mitsubishi; the size/price ratio is pretty impressive with them.
Basically a very bright light source shines on a panel of mirrors; there is one mirror per pixel and each pixel turns on and off *extremely* rapidly to shade/color that pixel.
It's the bigger seller because it's cheaper than a plasma..........You get what you pay for.