My first post : ) I had to mention as an owner of a variety of plasma panels over the years...the F8500 is by far the best I have ever seen. I have a tv addicted family and we currently have four plasma's in our home... including a Panasonic VT50, a Samsung E8000, a 9 year old Sony (yes, they used to make plasma's) and our new, amazingly stunning 64" F8500.
To me picture quality is everything...clarity, detail, color and how each handles motion is what matters. We bought two tv's last year, the VT50 and the E8000. They both have have some serious issues and overall, our old Sony was probably better than both of them, believe it or not. At it's best, the E8000 provides the best clarity, detail, and motion handling of the three, but it changes from too bright to too dark during a single movie...and is just plain weird looking at times. The VT50 has a more consistent picture from channel to channel, but it's picture is very soft, and combined with some motion issues...it was hard tell you're even watching HD at times...and it's color and flesh tones are just not quite right...regardless of calibration.
I was seriously disappointed with the VT50's picture quality. To me, it was way overrated...just very lackluster picture. Maybe it was the best of the bunch, but 2012 plasma's were just not very impressive, at least not to my eye's. I think Panasonic may have fixed the color issue with the new red enhancement, but all indications are that they made no other real significant changes to improve picture quality and didn't even address the motion issues with the new 2013 VT60.
My old Sony bit the dust, so I got a chance to buy a new tv for our great room. I chose the F8500...thank goodness!!! Everyone is just blown away by the picture quality...and, so far, no issues at all...just joy : )
The F8500's picture is leaps and bounds better than VT50...and very obvious to everyone in our house, that's for sure. Some have mentioned there is a slight difference...it's NOT slight, it's just sooooooo much better. If Panasonic can top it with the ZT50, they will have achieved something really special, because the F8500 is truly the best tv I have ever seen...by a landslide! Finally...after all these years of mediocrity...excellence has arrived...just in time : )