I posted last week that I had noticed my black levels increasing, and that by doing the reset on my tv restored my black levels. Well last night it seems that my black levels reverted back to the higher level. Well I did the reset again this morning and my black levels are back to a very dark level. Its very noticable when the black levels change. The best way I can explain it is that the user controls have little impact on your picture when the black levels elevate. The picture has a slight washed out look. For example, on my directv , when i hit info, and the description comes up, the blues look darker when the black levels are correct, and when they elevate, is a lighter shade of blue . Wouldnt this have to be a software issue since the reset has worked twice now ? The next time it elevates, I plan to do a service call, and do the reset in front of a technician. I will try to grab some pictures, so when it does elevate again, I can post the difference. I was looking at a blank input before the reset, and it was a grey black, after the reset, blank input is much blacker.