I just got my brand new 51" last night and I'm super impressed with it. Definitely the best tv I've ever owned, or even seen personally. I'm using the pieandchips settings now, which look outstanding, but I will probably try a few more and pick favorites.
Has anyone had any trouble accessing the cal day and night options from the service menu? I use my tv for movies and gaming in relatively bright and dim settings, so it would be extremely helpful for me to have a couple more calibrations saved on my tv. But if I bricked my tv, it would take me a long time to recover emotionally from such a blow. I've seen the instructions kindly posted by wxman earlier in the thread, but I'm wondering if even by following those instructions carefully I could still slip and mess something up permanently.