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Play Sound It's a miracle!
It's a miracle!

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Description: In "The Lizard-Spock Expansion," an episode from the second season of "The Big Bang Theory," Leonard Hofstadter and Howard Wolowitz's friendship is tested when Leonard begins dating Dr. Stephanie Barnett, a medical doctor whom Howard had previously attempted to impress. The episode introduces the expanded game "Rock-paper-scissors-lizard-Spock," devised by Sheldon Cooper to reduce the high frequency of ties in the traditional game. The plot also features Howard's mishap with the Mars Rover, leading to humorous situations as the group works together to resolve the issues. The episode originally aired on November 17, 2008.

Cast:
Leonard Hofstadter: Johnny Galecki
Sheldon Cooper: Jim Parsons
Penny: Kaley Cuoco
Howard Wolowitz: Simon Helberg
Raj Koothrappali: Kunal Nayyar
Dr. Stephanie Barnett: Sara Rue