I'm not sure how this got by the testers, but if you try to watch 3D VOD from Xfinity in Side by Side mode, the vertical black bands that others are talking about in the "Comcast /Xfinity OnDemand VOD not full screen?" thread actually occur on the left in one image and the right in the other. If you alternately close your left and right eye while wearing the 3D glasses you'll see that the black band jumps from the left to the right side of the display. What this means is that only the COMMON area is in 3D and the banding is very noticeable (i.e. darker and in 2D) on both the left and the righ side of the actual image where the banding is. It makes trying to watch in 3D really uncomfortable! And, about 1/4 of the image is messed up on the left and right sides because of this odd overlap or missing info. Can anyone else confirm this and maybe describe it better than I did?