Just saw this today from the CNET reviewer of the D7000 and D8000, and wanted to bring it up here:
http://news.cnet.com/8301-17938_105-...t/?tag=nl.e702
Highlights:
"Note the title "original picture settings," which means the post-calibration settings we publish in the review. The big caveat here is that readjusting the picture settings on the Samsung PN59D8000 at 1,500 hours caused its black level to return to 0.0074 Fl--essentially the same as the initial 0.0071 measurement at 150 hours. In other words, depth of black "drifts" higher on the D8000 over time unless you readjust it periodically, and so far the D7000 appears to be behaving the same way, although I didn't recalibrate it yet to confirm. (This finding corrects an earlier mistake I made regarding Samsung black levels over time; see No. 6 below for details.)"
And:
"As mentioned above, I originally indicated that the Samsung PN59D8000 became lighter as it aged (I made this statement in the performance section of the PN59D7000 review). The fact that the lightening can be corrected via calibration contradicts that statement. I will update the PN59D8000's settings and correct the PN59D7000 review accordingly."