On Barney's map of the world there is no check over Argentina meaning he has never had sex with a girl from there, however during "Something Blue" he says he hooked up with an Argentinian exchange student.
Barney: You guys bangin'?
Marshall: Aah! Why are you in our bedroom? (Robin comes in) Ah! Why are you in our bedroom? (Blonde Ted comes in Aah! Why is Ellen Degeneres in our bedroom?
Ted: First of all, I'm getting tons of compliments. Second, (To Robin) tell them.
Robin: He's not getting tons of compliments.
Ted: No, the other thing.
Robin: He got a manicure.
Ted: Over time, we all become our own doppelgängers. You know? These completely different people who just happen to look like us.
Don: Put yourself in my shoes. Can you imagine what it's like to have the phone ring and it's your dream job on the other end?
Robin: Yes, I can. Good luck in Chicago, Don.
The Italian episode title is "Il quinto sosia", meaning "The Fifth Double".
Music: "Lifesize" by A Fine Frenzy
International Airdates: United Kingdom: November 11, 2010 on E4; India: November 5, 2010 on Star World; Czech Republic: January 12, 2011 on Prima COOL; Germany: February 23, 2011 on ProSieben; Slovakia: December 1, 2011 on JOJ Plus