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The Big Bang Theory Season 9 Episode 1 - The Matrimony Momentum
Sheldon is confronted by a mystery of the universe he cannot unravel: when a woman wants time apart to think, exactly how much time does that mean, and is there any way to hurry the process along? In Las Vegas, Penny and Leonard march closer to marching down the aisle, but has Penny gotten over Leonardâ€™s infidelity? And if so, will he do anything to un-get her over it?
Air Date: 21 Sep 2015