I can see a simple sliding panel solution that might appeal to some. Recess the front wall where the screen is, and add some track top and bottom to the recess. Two sliding panels, open framework and covered with acoustically transparent black GOM fabric. A couple of stops to halt the manual panels at 16x9. A couple of activators could automate the panels.
These threads might provide some food for thought:
http://www.avsforum.com/avs-vb/showthread.php?t=941076
http://www.avsforum.com/avs-vb/showthread.php?t=1236491
http://www.avsforum.com/avs-vb/showthread.php?t=1259917

These threads might provide some food for thought:
http://www.avsforum.com/avs-vb/showthread.php?t=941076
http://www.avsforum.com/avs-vb/showthread.php?t=1236491
http://www.avsforum.com/avs-vb/showthread.php?t=1259917



































