Dead pixels can be either white or black, it depends on which way the mirror gets stuck. Good find if they'll replace it for $200! The actual repair would be far far more.
Yeah, $200 is awesome, compared to what the full cost would be.
Can you imagine how many people with that problem had sets that were out of warranty, so they never contacted Mitsu, and either tossed the TV, or paid full cost for the repair? Ugh.
I called Mitsu about my several dead pixels (black) and they said it's under warranty and are having someone come look at it today. I was surprised they are sending someone, because the warranty says they allow for up to 0.02% visible dead pixels.
Of course, the guy may get here and tell me he's not fixing anything, because it's less than that 0.02%. I read somewhere that 0.02% could be up to 27 dead pixels. Can you image having that many dead pixels all over the screen? Just having a few is a visible annoyance.