Summary: I had a few initial problems associated with this TV fluctuating brightness green blobs. I decided to stick with it and give Panasonic a chance to fix the problems with their firmware fixes, mainly because of the superb performance of the set on a whole, value for money.. the buy of the century. I'm so glad I did as it seems all associated issues on this set are now not noticeable. I hope this lasts and does not reoccur.
Summary: I took delivery of a VT-P50ST30B on 23 December and up until last night (4/1/12) I was delighted with my purchase. The picture quality is streets ahead of the 42" panasonic plasma it replaced. The only slight niggle was the ever present sound of the cooling fans. The previous plasma was whisper quiet so I had an expectation in this regard.