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The guys take a train trip to a conference in San Francisco, where the guest speaker is 2006 Nobel Prize laureate Dr. George Smoot. However, the trip suddenly becomes more exciting when the guys realize Summer Glau (guest starring as herself) of Terminator: The Sarah Connor Chronicles is on board. Leaving his shyness behind while drinking beer, Raj is the first to approach Summer, who gets along with him. Howard gets angry, but he notices that Ra...

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