I'm a current owner of the sammy PN50A650 who's looking to switch to the B650 model due to my current set's horizontal banding/ bleeding issues. I wanted to check and see if anyone has seen any of these issues on your sets at this time. These bleeds are visible from the all white screen menu and to a lesser extent during normal viewing as well. Minor pink hues are another problem but only when using up my dell laptop via hdmi. By all accounts, samsung has fixed most of these issues from last year and am looking forward to a perfect set after upgrading.
Here is a couple of useful links for all you newbies who've just gotten your new sets http://samsungplasmatvfaq.com/index....mage_retention
Has tons of great information on break in, burn in and IR issueshttp://www.avsforum.com/avs-vb/showt...4#post10425704
Talks about recommended settings you should be using (PC, Component and HDMI) while breaking in your sethttp://www.eaprogramming.com/
is where you can download your break in images. Note that downloading it into a usb thumbdrive is the easiest, quickest and cheapest (free) way that i have found for this method.
One other important fact I would also like to share is the importance of recording/ keeping tabs of your hours while breaking in your sets. This way you don't have to go into the service menu to look it up and end up resetting everything back to factory default. This by no means is a bad thing- but still it'll save you a ton of time from inputting all of your settings all over again.
So go out there, grab a beer, relax and enjoy your new sets. Those first 250 hours will go by quickly before you know it. I look forward to hearing how awsome all those new B models are performing