Posterization and false contouring are definitely the same thing. Banding can absolutely be used in the same way, but is also used to describe a very different phenomenon where vertical or horizontal "bands" are seen on screen (sort of delineated by differing amounts of darkness/lightness). But yes, they can be all used to describe the same phenomenon.
They are all different things but their source is the same: the physical limitations of the current PDP technology, coupled with the picture processing and dithering techniques of the given plasma TV.
All of these can happen with all PDPs.
The "false-conturing" seems to be Panasonic exclusive, but distorted dithering noise (and thus banding and posterization...) can sometimes become noticable on all PDPs.
I don't find those links overly helpful, 8mile. But the "Banding" one shows the other definition of banding I alluded to. The posterization ones show some good examples, which, again, can be called false contouring.
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