So I just returned from a two hour stint at my local RC Willey here in Sacramento playing around with the new 64F8500 plasma, which by the way, was located well within eye shot of last year's Panasonic 65VT50. Knowing full well that the showroom enviornment at RC Willey is far from good to really judge the picture quality of any TV, I came away from my two hour viewing of the F8500 unimpressed. What really shocked me was how well last years VT50 looked in comparison. Again, neither set was professionally ISF calibrated, nor was the lighting conditions no where near the best, but having said that, besides the great physical look of the frame and stand of the F8500, I dont think the ZT60, or maybe even the VT60 has anything to worry about. I was viewing a Directv HD feed of the same Golf Channel and HBO stations. I did not see Blu-Ray source material. In conclusion, unless the F8500 has the ability to totally transform the picture quality through ISF calibration, the out of box picture settings were nothing special. The bells and whistles and procesing speed are impressive, but picture qulaity does not come close to a new reference standard.