I've watched movies on one MD using UI2-masked and everything looked great over S-video to CRT. (And no freezing on the Playroom unit - yay!)
On a HDMI Aquos LCD I didn't get tearing but what look like little threads pulled out horizontally. Almost scratchy? Hard to explain. UI2-alpha.
This happened for about three to five minutes and cleared up. Timing or X-fer issue on network?
This is on Nvidia 180.11 driver.
Just thought I'd mention it.