I just bought this TV too for $450. I upgraded from a 42" Plasma. I wasn't sure if it was blocky just because the TV was bigger. My dad has a 6 year old 50" Samsung Plasma that was a lot blockier than my 42" is, so I think it could just be the size, since it doesn't happen with bluray at all. As far as the color goes, it's definitely not as nice as the plasma was. I have been playing around with it for days with no luck of making it look as good as the plasma did. I may or may not return it. I really want a 1080p 42" plasma, but they don't seem to exist.