The avs forum is absolutely notorious for intolerance to anything but absolute perfection. "If it ain't Pioneer, it's garbage" seems to be a common theme there, and let's face it; if you're satisfied with your tv's performance, you will not post about it there.

Having said that, Panasonic has gone on record as saying the voltage will adjust itself dependant on viewing hours, which may translate to lessening of black levels in the long run. The question is how much? If it can be measured with a spyder, but will not suffer in a viewing environment, who cares?

Before purchasing my G series Panny, I was looking for an LCD/LED tv and almost bought one. When shopping around I asked every sales rep what type of tv they owned, and without fail every single one stated they owned a plasma as a main set, with the majority owning Panasonic.