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The plot: Mira Sorvino guest stars as psychiatrist Cate Milton who falls ill in the South Pole. House is called in to help diagnose her malady via webcam and requires her to take off her clothes, natch. / How many watched: 29 million / Touchdown or fumble: Touchdown. This was the show's highest-rated episode ever across all demos and was the highest-rated on any network in two years among adults 18 to 49 and total viewers. Bonus: You got to watch a man drink urine!