New 65VT50 owner. Just some general observations. Am using THX cinema mode right now and doing 100 hours of "burn-in" use with just general full-screen content from cable hd shows (no station ids or logos). Not using any special slides, am simply playing full screen content. That's it.
TV itself looks really good, thin, great design. Image is excellent, greyscale performance on the 65VT50 beats anything I've seen, and again I'm simply using the THX cinema mode with (I think) the sharpness turned down a few clicks. The VT50 will show you all kinds of details that get muddied/lost in lesser displays. Tested blue ray dvds, looked great. Motion is rendered beautifully on this plasma. Watching movies as well as Olympic trials this weekend, it does a great job of conveying depth and is superior with fast-moving action. Can't wait for the Tour and the Olympics this summer, I'd rather watch them on our new plasma instead of schlepping to London on Virgin Air (though we did try to get tickets a couple years back, what a fraudulent scam racket London Olympic ticketing has been).
Menu controls are simple and reasonably intuitive even for a novice. If this is your first plasma you may need to look up a couple settings (though the interface provides helpful explanations on-screen). I like the THX settings, though my one complaint is the THX setting does "grey out" a fair number of advanced menu items, though perhaps this is beneficial for the general user populace. But if you don't want to mess around, seriously, you can have this TV set up in five minutes. Screw in the stand, plug in the HDMI cable, select THX cinema, and you're up and running with a beautiful display in just minutes.
Some people have talked about "buzzing." Nonissue in my opinion. TV is silent. It sits within 15 feet of us, has been on for many hours now. It's not overly hot and it's not buzzing, to hear anything at all you need to be on top of it.
If you are deciding between an LED, LCD or the VT50 plasma, you should really take a hard look at the VT50 -- its display performance is superior to the other displays we examined, and we reviewed quite a few, and on multiple occasions. Now that I own one, I'm really, really glad I did not get any of the LEDs we looked at, they simply do not produce as good an image. The one caveat may be the Elite LEDs, we almost pulled the trigger on the 70" Elite but we liked the VT50's performance so much. I'd need extended side-by-side use to render a reasoned opinion. So to conclude, very happy with the purchase, and if Panasonic can continue to deliver this level of performance, we'll be buying Panasonic plasmas in the future.