The shade on the living room window by the staircase is completely down during the breakfast scene when Archie comes into the room. Moments later, when Edith is arguing with Archie, it is raised all the way and the sunlight is visible, even though no one has gone by the window.
Mike: I don't understand it. You couldn't possibly have gotten a mortgage unless somehow, you got Ma's signature on a piece of---pa---
(Mike freezes and realizes the worst. He stares at Archie.)
Archie: What the hell are you staring at?
(Mike points to Archie.)
Archie: Don't you give me the finger there!
(Mike questions Archie as to how he got the money to buy the bar.)
Mike: Did you go to a loan shark?
Archie: Don't you say "hello" first?
Mike. Hello. Did you go to a loan shark?
Archie: Hello. None of your damn business!
Archie's loan carries an interest rate of 8.5%