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The Itchy Brain Simulation

'The Itchy Brain Simulation' - Season 7, Episode 8

When a past mistake of Leonard's comes to light, he's surprised when Sheldon promises not to make a big deal out of it, instead making Leonard walk a mile in his shoes. Meanwhile, Penny embarrasses Raj when she confronts his ex-girlfriend, Lucy.

Air Date: November 14, 2013.

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