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THE BIG BANG THEORY "The Spaghetti Catalyst" Season 3 Episode 20

Watch a sneak peek and check out photos of the new episode of THE BIG BANG THEORY titled "The Spaghetti Catalyst" Season 3 Episode 20 airing at a special time on Monday, May 3 (9:00-9:31 PM, ET/PT) on the CBS Television Network. Episode Synopsis: When Leonard and Penny aren't speaking, Sheldon goes to extremes to keep them both happy, on THE BIG BANG THEORY, at a special time on Monday, May 3 (9:00-9:31 PM, ET/PT) on the CBS Television Network Source & Preview
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