Panasonic TC-P50GT30

Pros: In THX mode tv picture is great.
Deep blacks.
Great colors.
Very nice 3D effect.(2D-->3D)
3D movies look great.

Cons: Every other picture setting will give fluctuations in brightness.
Some loss of detail with dark scenes.
Some flicker with bright images.( maybe as a result of 50Hz) (Euro model.)

Summary: The real downside of this model would be the fluctuating brightness levels with most picture settings, it becomes really annoying. When using THX settings this is not a problem. The rest are just minor issues.
In THX mode it is a great tv and gives a very good picture. Internet on the tv I didn't use yet.