The G20 had floating blacks really bad. I could see them during daytime viewing even. It was major changes. I wasn't impressed by the set overall, so I took it back and exchanged it at BB for a VT20.
The VT20 is the best tv I have ever seen. The blacks did float, but not nearly as much as on the G20. The blacks were much darker and in night viewing, I could not see where the blacks of the panel ended and the silver trim of the tv began. I do not know if this is because the silver trim catches just enough light to not look as dark, or if the blacks really are just THAT dark, but it was fantastic. Everything about this set was perfect. But I wanted... bigger. Tv's are like weight lifting or even measuring girth--it's never enough, you always want more.
This set is gorgeous. The colors are exceptional, just like the VT20's. The 4 inches in size are very noticeable, especially when viewing 3D--it actually is more evident. The blacks float EVEN LESS than the VT20's did. It's barely evident even in darkness. The problem I am having with this set is that the blacks do not seem as dark as the VT20's. I don't know if my eyes are playing tricks on me, or maybe it's because the VT25 has a darker trim than the VT20 and I now have a very obvious way to compare while viewing, but the VT25 just does not look as dark, especially the bars, it seems more light passes through, even with brightness down low. The only time the set looks perfectly black is right as I'm starting my blu ray player and there is no source coming into the tv. Then it dims to this perfect black that looks like the tv is off. As soon as the blu ray fires up though, the black gets much brighter. I have a bad feeling that in an effort to eliminate floating blacks, Panasonic just decided to go with not as good of a level. Or maybe I'm nuts. Either way, I'd like to find a way to measure these levels. Anyone have input on this?