The guys battle over how to construct a message for NASA on The Big Bang Theory. "The Communication Deterioration" is the 21st episode of the show's eighth season.
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Sheldon faces a relationship crossroad with Amy when they build a blanket fort on The Big Bang Theory. "The Fortification Implementation" is the 20th episode of the show's eighth season.
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Howard and Leonard must get a pigeon out of the clean room at the University on The Big Bang Theory.
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Wolowitz practices before pitching in the big game on The Big Bang Theory. "The First Pitch Insufficiency" is the third episode of the show's eighth season.
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Bernadette and Amy bring the Death Star Cake to the Star Wars Day celebration.
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Sheldon, Howard and Raj start celebrating Star Wars Day on May 4th.
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The gang introduces Penny to Star Wars Day on May 4th.
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Howard shows Leonard a drawing of ... something. What is that supposed to be?
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TBBT Quotes

You can't ruin a friendship with sex that's like trying to ruin ice cream with chocolate sprinkles.

Raj

Sheldon: Even the dung beetle chooses to plot its course by using the Milky Way.
Raj: Is that true?
Sheldon: Everything I say is true. Now, of course, the dung beetle also enjoys eating fece, living in feces and making little balls out of feces. So, pick and choose which aspects of its lifestyle you want to embrace.