Screaming Penguin - Source Does Matter

I guess my geek sense is just attuned to 1701D. I noticed it. Still, it wasn't a passing thing: they lingered on it in the shot. Moreover, I noticed that BSG tends to not number doors. I remember thinking this was just smart: when you number doors you end up with continuity issues to deal with. If you just label a door with a function name, you put off dealing with continuity until later :P