Originally Posted by ace54
so smaller TVs have better PQ then bigger TVs interesting good to know
I don't know if I fully agree with that statement. I think it's a matter of how the size of the TV exposes flaws that would otherwise not be as noticeable on a smaller set. Sometimes bigger doesn't necessarily always mean better - especially when it comes to watching poorly sourced cable, standard definition DVDs, or streaming (cringe).
As for differences between the sizes of the VT:
I own both a 55 and 65. When I measure them with my i1 Display Pro, the 55 requires a little more oomph in the contrast to get to my desired 33ftL (62 contrast on the 55VT and 58 contrast on the 65VT). The only other difference I get that currently drives me insane is that my 65 reads a black-level of .0015ish while my 55VT reads a black-level of .002 (maybe .0019 on a good day). This difference is not noticeable to my eyes in terms of picture quality, but has always baffled me when I take measurements, as a .002 is more f8500 territory.
My 55 had to have a service call because there was a speck of dust behind the screen that they were successfully able to remove. I hope that didn't have a detrimental effect on my black-level.