Surprisingly enough, I think I have picked up something that a lot of people here seem to have missed out on. Check the image below. Bertram is mysteriously missing in the official YouTube trailer released by CBS while he is seen lying on the floor in the leaked video. Everything else in the frame is exactly the same.

http://imageshack.com/a/img547/2984/aokq.png

Long story short, its an intelligent move by Heller and co to have released a fake version of the finale. It also means a cracker of an episode is up for grabs later today. Faith in humanity restored!