Got the panel replaced; very happy that there were no dead pixels. Btw, it *seems* the panel I got looked a bit different, in some cases better than the old one. Will try to recalibrate this weekend with the good old Spears and Munsil BD.
Btw, after doing mute 737 enter, mains running time is at 118 hours. The Samsung guy said this was what was saved on the board but that the panel is brand new. The tech asked if I wanted a system reset but I said no.