. "An argument between Sheldon and Penny over a chair she found in the street leaves Amy caught in the middle of it, while Leonard tries to spice up his long-distance relationship with his girlfriend Priya."@en . . . . . . "An argument between Sheldon and Penny over a chair she found in the street leaves Amy caught in the middle of it, while Leonard tries to spice up his long-distance relationship with his girlfriend Priya."@en . . . . . . . . "Acting like an old married couple."@en . . . . . . . . . "The Infestation Hypothesis"@en . . . . . "Season 6"@en . . . "5"^^ . . . . . . . . "The Infestation Hypothesis"@en . . . . . . . . . . "2011-09-22"^^ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . "2"^^ . . . . . . "Season 4"@en . . . . . . . . . . . . . . . . . . . .