odd I'm positive I read somewhere on these forums that the Normal mode had changed this year & was cleaner :' but I cannot seem to locate the post
Why would you want to use Normal mode for? True Cinema is the Way to go for the ST50 and THX or Professional for the GT50 and VT50.
Because on the 2011 range Panasonic capped light output in those modes and for me True Cinema's warm colour balance makes the image drab. Anyway if I want to use a particular mode whats the problem, most of the people I know use this mode on their Panasonic TV's regardless of accuracy.
For my TV & my uses the ST30's Normal mode is sufficient and provides comfortable viewing in all conditions (contrast 75%/ brightness 50%), although for BD I do tend to use Cinema & I can use the Normal colour balance
I just asked the question about the 2012 models that it was mentioned somewhere that the drive method had changed to combat the "slightly" noisier picture from 2011 models, something I find to be irrelevant unless very close to the screen but was interested none the less