I have a LN52A650 and have been using TheBeginnings Dynamic settings below for the past 3 days. I must say that I LOVE these settings! I tried all of the settings that have been posted and sorry but these settings are the overall BEST settings period. The picture looks flat-out amazing with lots of POP and detail! Colors are very accurate, skin tones are very natural and the shadow detail is just incredible. The blacks and whites look great as well. I have a Denon 3808ci and all my components (360, PS3, U-verse, Gamecube, HD-A2) are hooked up via HDMI and look gorgeous with these settings.
One other thing... I'm so tried of seeing these comments about getting the picture the closest to the 6500 K standard. Sorry but all the settings that are supposedly close the this standard look DULL and boring and way to dark. I don't see how anyone can watch this set on "Movie mode". Yah it looks "okay" at night but terrible doing the day. And who wants to keep adjusting there set for Day/Nights settings? Most if not all of us LIKE the detail and POP from this TV. Hell most of us paid the premium price for this LCD set solely because of the amazing 3D POP effect and crystal clear picture it has. I just can't understand why some of you are so set on the whole "how it was meant to be viewed BS" Whatever! I say out with the old and in with the new. I would love to go to the movies and see this kind of detail on the 'Big Screen'. Now that would be amazing.
If your like most people and watch your TV day and night and don't wanna have to change your settings all the time then you can't go wrong with TheBegginnings settings! That said I would highly recommend his settings to anyone with the LNXXAXXX set!
Here they are!
Color Tone - Normal
Digital NR - Off
DNIe - On
Film Mode - Auto
Energy Savings -Off
Took my eyes, these are the best setting by far for my set. They look stunning and very natural.