I've seen that rainbow on every DLP set I've worked on.
The artifacts from digital compression are getting into the analog world too. I finally caved and ordered ANALOG cable a few months ago. (the signal from my antenna has gone to the dogs in the last year since Wal-mart, Home Desperate, Costco, and others have opened up in my signal path). I was shocked at how much worse the picture is compared to 15 years ago, the last time I had cable.. The compression is horrendous. On some channels it's so bad, I can't watch a football game or auto race. Sometimes it looks like it's been digitized, compressed, converted to analog, then digitized and recompressed again. It's OK on the talking-head news broadcasts, because nothing moves, but if there is a lot of detail or motion, it's not acceptable at all.
And the cable company can't stop bragging about the "Digital Quality Picture".
I've noticed that if anyone between the camera and the TV set changes the resolution or "scan rate" the quality goes down the tube really fast.
On one station here, the dot-crawl on colored edges is worse on the 1080i signal than it is on the analog. Must be composite-analog somewhere in the loop, otherwise there wouldn't be any dot-crawl. Many of the channels have a problem with saturated whites, like someone turned up the video gain on something without looking at the scope first
OOPS. I started ranting again, and not even on-topic.
I have a flat CRT Sony 27". It looks very good, geometry is quite good, but not perfect.
I think the flat CRT was developed to fill the gap between plasma/LCD sets and the curved CRT we all love. The marketing people got the buying public hooked on the idea of flat, and a lot of people don't know the difference between a flat CRT and LCD tv. (Until they try to hang a 300 pound CRT on the wall
)
Watch the TV commercials: They will GIVE you a "flat screen TV" if you come in and buy their crap. Look closely: it's almost always a flat CRT. But people fall for it.
LCD/Plasma is nice, because it only stands out a small distance from the wall. And what are you going to do, make those curved on purpose?
We need to accept it: THE WORLD IS FLAT
I'm going to eat something now, and watch a CURVED CRT.