I have an xbr-1 60" that I purchased in December of 2005, Manufactured in November of 2005. I had no problems with the display until the last week, when I noticed a green stain in the upper half of the screen, extending into the right side of the screen, that stayed there even after about 12 hours of viewing. I also noted some green horizontal bands about 2" wide on the bottom of the display. Only the left side of the screen appears completely unaffected. I contacted Sony, and they are sending a repairman to look at it next week.
The observance of this may have something to do with getting the calibration disc with my new Blu-ray player, and needing to turn the brightness up a few clicks, which makes sense since my bulb has over 3000 hours on it now.