Available Episodes
Penny wants to throw a surprise party for Leonard but Sheldon's indulgence at an electronics store throws her off-track.
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Penny's break-up spurs Leonard to summon the courage to ask her out, and each goes to Sheldon for advice on their upcoming date.
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Penny opens up to a reluctant Sheldon after a less-than-stellar first date with Leonard, placing him in the uncomfortable position of having to keep a secret.
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When Sheldon loans money to Penny so she can pay her rent, it leads to Leonard coming face-to-face with her ex, Kurt.
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Paintball leads to a squabble between Sheldon and Penny as well as romance between Howard and Leslie.
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The gang is thrilled when they see Terminator: The Sarah Connor Chronicles' Summer Glau is also aboard their train to San Francisco for a scientific symposium. Sheldon frets over having forgotten a paper he wants to present to George Smoot.
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