Originally Posted by Hack&Lube
They forgot to blot out the giant "Canadian Imperial Bank of Commerce" on the building they were filming in front of. I like seeing Calgary but things like this really bug me as they take away the suspension of disbelief. I hope it's fixed for the production version of the episode.
Well, I've watched it several times now and I can't make this out. I think you are seeing it because perhaps you're used to seeing it. If it's the building on the street they are standing on after Billy says "I would have killed that man", it flashes by in an instant.
Edit: I see it now in full screen mode, but I really think you have to be looking for it. Most people will focus on what is happening with the people, not the gold washed out sign on the building wall up top.