The Big Bang Theory - Season 8 Episode 11

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    8x11 | The Clean Room Infiltration

    December 12,2014, 02:00AM

    Leonard and Howard turn to Raj for help in dealing with a work emergency when they nearly come to blows after blaming each other for a potential disaster at the university. Amy throws an authentic Victorian Christmas party, while Sheldon seeks revenge on her for making him celebrate the holidays.