Originally Posted by optivity
Do you really believe it makes any difference?
I think this is something tough to quantify since most people who do the break-in slides don't have an identical copy of the set to compare to (and even then there's slight variation between sets so it would be hard to know how much was from the slides and how much is from the manufacturing variance). If you have dirty screen effect, hot pixels, or any other abnormalities, break-in slides are probably a good idea. If not, break-in certainly won't hurt the set, but as far as I'm aware there's no data that conclusively says one way or the other that break-in improves PQ. They used to do break-in to prevent IR/BI, but that's mostly a thing of the past. You may slightly
reduce your chances of those by doing the break-in, but again it would be a subtle amount and overall usage style becomes more important here.
I ran break-in for my own peace of mind. If you're going to have your set calibrated, then you should do break-in for 150-200 hours. If not, it's mostly a matter of how much you want to baby your set in the beginning. For me, I didn't mind being unable to watch TV for a week. Kuro's generally don't have IR/BI issues so you are probably fine either way, but it just comes down to how careful you want to be with your set (regardless of whether there's a quantifiable difference as a result) and how anxious you are to start watching it.