Hard to explain in words, so here's the video:
http://www.youtube.com/watch?v=7nMQB4VduLwI tried using the Pan/Crop tool to shrink it down, but it disappeared after so much shrinkage. Im not sure how else to get in into that TV area, or im missing some big step in this. The TV is blue, so the walls have nothing to do with it.
(NOTE this is my first attempt at chroma keying.)
if you want the .veg file i could get that for you too.