Music: Crazy (Patsy Cline), Miami Vice Theme (Jan Hammer)
When Walter is cooking the cocoa beans, he removes the pan from the flame before approaching to talk. As he rounds the table, the pan returns to the flame.
After Walter mentions the South American centipede that causes brain damage, Astrid asks if a bug could have killed "all five victims." There were six victims, four upstairs plus the two thieves.
Trivia: The glyph code for this episode is ALERT.
Trivia: The Observer can be seen on the far right of the screen, his back to the camera, as Newton leaves the train station.
Alternate Earth general differences:
- There is no U2 or Bono (or they are not well-known)
Broyles: Is he okay?
Peter: Well, he's Walter. Define "okay."
Astrid: (as Walter removes Mitch's brain from his skull) That sound creeps me out.
Walter: Really? I always found it oddly comforting. Oh, that's very good, dear. Have you ever worked behind a deli counter?
Astrid: Walter, your tie. I, uh... I think you have a little bit of brain on it.
Walter: (quoting William Bell) "Only those that risk going too far can possibly know how far they can go."
Astrid: So we're looking for some kind of deadly music box?
Peter: No, it's ultrasonic, so you wouldn't be able to hear it. The frequency's too high.
Walter: Silent but deadly. Speaking of which, might like to take a step away.
Peter: Delightful, Walter.
Walter: Kent Street. I frequented a massage parlor just around the corner. I used to get off right here.
Peter: I sure hope you're talking about the station, Walter.
Peter: We're talking about two universes here. Two of each one of us. At this point, would anything really surprise you?
Walter: Bacon-flavored pudding. That would surprise me.
The opening credits are in blue, confirming that the Other Side credits are in red and the "real Earth" credits are in blue.
Canada: September 30, 2010 on Citytv
UK: October 12, 2010 on Sky1
Latin America: November 9, 2010 on Warner Channel
Australia: November 17, 2010 on GO!
Germany: January 17, 2011 on ProSieben
Finland: September 14, 2011 on MTV3
Poland: January 30, 2012 on TVN
Czech Republic: January 7, 2013 on FANDA
Walter: Reminds me of Monet's Water Lillies.
Claude Monet was a French impressionist painter. Water Lilies is a series of his paintings. The reflections of the water lilies on the water aren't an observation of sunlight, but symbolize Monet's loving relationship he had with Alice Hoschede.
Walter: But we are yet to find our Rosebud.
Referencing the classic 1941 black-and-white movie Citizen Kane in which Orson Wells' character, Charles Foster Kane, utters the single word, "Rosebud," before passing away.
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