I have run my 60ST for just under 100hrs straight.... and I just now put a channel running I Love Lucy which is obviously a Black & White broadcast. The entire picture has a greenish tint to it and once in a while I notice little green flashes. My Panasonic LCD ... shows none of that ....
Is that what people are talking about, and if so, how do I go about getting it fixed?
Always assuming that you do not have the TINT control jacked out of shape, it certainly sounds like the panel has the Green Tint Glitch.
Of course, you DO understand that your panel is Working Within Specs; the Green Tint is only YOUR Imagination; You are being Overly Picky; and, gee, after all, Who Actually Watches Black & White Programming any more?!?
There is no fix. You can return the set & try another panel. The new one will also have Green &/or Pink (Magenta) Tints, BUT perhaps not as badly. (Our latest panel, a Nov Build ST30, shows both flaws, but is the best of the 4 Working 60" panels we've actually had at home.)
At last count we were up to something like 21-out-of-21 2011 Pan Plasmas Tested, with ALL of them exhibiting the problem to one extent or another.
Unless you are approaching the end of your Return Period, 100 hours may be too soon to give up entirely on your current set: you may find that the green will diminish in visibility as the panel ages over the first several hundred hours.
You can also Lessen The Visibility of the Green by playing around with the picture settings. Alas, CINEMA gives by far the BEST overall PQ on these sets, but moving to Custom opens up additional controls - panel brightness, 2 point color balance controls, gamma controls - that can help mask the Green tinting, albeit at the cost of other PQ factors. (However, if you pick up Pink you are stuck, as "fixing" one tends to "Enhance" the other.)
A good Professional Calibration also seems to help hide the Tinting.
The 60" panels also seem prone to Pink/Magenta tinting, and THAT problem is more likely (then the Green Tinting) to become MORE visible as the panel ages. We kept our first set in house for around 700 hours, and finally sent it back due to the Pink Problem: Green was still visible during some programming, but we probably would have lived with it in the absence of the Pink/Magenta. On that panel, the Pink started out as Barely Visible "highlighting" at the extreme R edge of the panel - but then grew dramatically as we aged the panel....
The Green Tint Glitch was initially reported as "Green Blobs" - and suspect from your description that your panel has one or more actual "Blobs" as these often show up as "Flashes" of green during B&W (AND OTHER!) programming.
The BLOB is merely a More Intense Area of the Green Tint, and, as such, is more readily visible. On the "best" panels, the green tint assumes a more uniform appearance, which makes it harder to spot in Bright / High Color scenes. Perhaps because of the blobbing effect - or simply slight variations at the Gray Level within which the Green Tint is most obvious - some panels show significant Green Tinting on FACES, given a Slightly Dim Scene (and/or a somewhat darker complexion, or beard stubble).
Our first 3 60" Panels showed significant Facial Discoloration, and, of course, this Highlights the problem: Almost everyone knows that Faces should NOT be Green! Our current panel apparently pushes the green to a lower point in the gray scale, and faces SELDOM look "Green" - makes the problem much easier to Live With.
Spouse thinks this set looks "fine"; I will wait at least another 30 days before deciding (we still have over 60 days before the end of our Return Period....).
Age your panel as quickly as you can, before the return period expires, and make your decision at that point. Have found that saving selected scenes to our DVR, and then photographing them (using same panel & camera settings) is the easiest way to track progress over time, as well as from panel to panel...
Best of Luck.