difference between 44PL9523 and 44PL9522?

[dalkonshield]

Does anyone know the difference between the 44PL9523 and the 44PL9522? In doing research on the internet I can only find info on the 44PL9523. One of my local costco's just started carrying the 44PL9522 with stand for $2499. Just curious about any changes/improvements they made from the 9522 to the 9523?

[dalkonshield]

Well, philips didn't return my email and their website doesn't show the 9522. Perhaps the only difference is it includes the stand. Unfortunately, after watching blues are displayed as purple. philips also didn't respond if this was a manufacturing problem or something that can be tuned and adjusted to solve.