One of the big features for the 6-series and up (40" and up) models is that they'll have Medi@2.0, which is an enhanced set for DLNA (streaming) capabilities. So it will have Internet@TV content, Wireless DLNA, a contnet library and a few extra features that the "A" series does not have.
Let me know if you have any other questions.
I am looking to pick up one of these two sets. Besides the contrast, sound and "touch of color" what do I need to know about the two of these sets? Is the better contrast on the B the better reason to get this versus the A? Is it that much of a difference because between the red and black I prefer the aesthetics of the A.
Any and all help is greatly appreciated.