OK.
Blue area is proposed home theater room, black area is family room since the stairs come into that room first and it would help to make things feel a little more "open".
The breaker box is just off-center a little, but not enough to be out of the way. The wall opposite won't work because it would be quite off-set to the right (as you face the screen) with a large doorway up front. I could make the doorway smaller (it is about the right size for some french doors) but I still don't like the idea of the door up front.