I have the 50B650 and I wnat to comment on 2 things.
1. The B series 650, 850, and 860 have the FilterBright coating that has PINK color to it. Its used to help with reflections. You can see it in the sunlight. I hope you guys that are complaining about the pink are not mistaking the coating. I have NO pink banding on this TV.
2. When you call Samsung and complain about a problem about your TV it is common for them to order parts based on what you say is wrong with the TV.