ok, picked up the new 46xbr3, january/mexico build last friday evening. it most definately has the new update because i elected to "buy" the new set and keep the old one for comparison, to keep the better (less affected) of the two. side by side comparison immediately showed that the new unit auto-dims whenever there is a dark source, and then lightens/brightens back up when the source is brighter. this is quickly evident when powering on both sets at the same time (easily done with the remote), and u can see that initially BOTH blank screens have some unequal backlighting. but after a few seconds january panel darkens, as well as the input source flag in the upper left corner. after those few seconds u can clearly tell the difference between the two panels.........the january build screen is jet black and even and the input flag is clearly dimmer than the october panel. so, it will darken/dim automatically to make the "clouds" seemingly vanish.
so, what i did next was play "the descent" on the january build, and just as i suspected/feared, it auto dims to hide the clouds whenever a scene is mostly black/dark, BUT it does it to the point where it's TOO DAMN DARK. u are unable to see most of the characters as they are meant to be seen because of how dim it makes the already dark scenes. to alleviate this, i simply increased the brightness, but this then could give a "washed out" appearance if done too high to the "blacks" being displayed, and then when the auto dims goes back during a brighter scene, that scene is now too bright. *smfh*
i don't like the fact there is no "user" control over this auto-dimming, especially since the clouds are less apparent on the january build than the october....meaning, the auto dim function is not "needed" on this particular panel because the mura is so minimal. i got a less "affected" panel, but now have auto dimming in effect on the darn thing! so, it's keep the one that has more clouding but no auto dimming, or keep the one with less mura, but auto dims whenever it deems necessary.
i'm just at the point where i'm thinking to just wait it out, take them both back, and wait for something PERFECT, which should be available to anyone spending 3-4-5K for a damn tv. anyone who gets a new january/february/whatever-else-in-the-immediate-future is going to have now deal with auto dim, which MAY make your viewing pleasure "less" than what it should be.