The Big Bang Theory: S09E24 - The Convergence Convergence

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The Convergence Convergence

The Convergence Convergence
Season: 9
Episode: 24
Air date: 2016-05-12

Guest stars: Laurie Metcalf, Christine Baranski, Judd Hirsch

Chaos ensues when Leonard’s recently divorced parents, Alfred and Beverly, and Sheldon’s devoutly religious mother, Mary, come to town. Also, Wolowitz and Koothrappali think the government is out to get them when they are contacted about their guidance system.