The Big Bang Theory

▶S1 E1 PilotSep 24, 2007 · 23 minBrilliant physicist roommates Leonard and Sheldon meet their new neighbor Penny, who begins showing them that as much as they know about science, they…Episode details → ▶S1 E2 The Big Bran HypothesisOct 1, 2007 · 21 minLeonard volunteers to sign for a package in an attempt to make a good impression on Penny, but when he enlists Sheldon for help,…Episode details → ▶S1 E3 The Fuzzy Boots CorollaryOct 8, 2007 · 22 minLeonard asks a woman out after he finds out that Penny is seeing someone.Episode details → ▶S1 E4 The Luminous Fish EffectOct 15, 2007 · 21 minSheldon's getting fired forces him to explore what life has to offer outside physics, leaving Leonard to take drastic action to snap his friend…Episode details → ▶S1 E5 The Hamburger PostulateOct 22, 2007 · 20 minFearing he's wasting his time on Penny, Leonard ends up making a connection with Leslie.Episode details → ▶S1 E6 The Middle-Earth ParadigmOct 29, 2007 · 21 minPenny hosts a Halloween party, putting Leonard, Sheldon, Wolowitz, and Koothrappali through a new test of their social skills.Episode details → ▶S1 E7 The Dumpling ParadoxNov 5, 2007 · 21 minWith Wolowitz AWOL with one of her friends, Penny's recruited to fill in for him on the guys' Halo teamEpisode details → ▶S1 E8 The Grasshopper ExperimentNov 12, 2007 · 20 minRaj's parents set him up on a blind date, but just when he discovers he can talk to her, she shows interest in Sheldon.Episode details → ▶S1 E9 The Cooper-Hofstadter PolarizationMar 17, 2008 · 19 minWhen they're invited to present at a physics conference, Sheldon's reluctance to share the credit leads to a tiff between him and Leonard, and…Episode details → ▶S1 E10 The Loobenfeld DecayMar 24, 2008 · 21 minLeonard and Sheldon each lie to avoid seeing Penny's concert, but Sheldon's is a bit too complicated for his own good.Episode details → ▶S1 E11 The Pancake Batter AnomalyMar 31, 2008 · 22 minWith his friends knowing how sour he acts when sick—and avoiding him as a result—Sheldon is nursed by Penny, who hasn't a clue what…Episode details → ▶S1 E12 The Jerusalem DualityApr 14, 2008 · 20 minWith Sheldon rattled over meeting Dennis, a 15-year-old physicist who's smarter than he, Leonard helps him look for a way to debunk Dennis's research.Episode details → ▶S1 E13 The Bat Jar ConjectureApr 21, 2008 · 22 minSheldon finds himself booted from the gang's Physics Bowl team and replaced with Leslie, so he forms his own team, hoping to prove he's…Episode details → ▶S1 E14 The Nerdvana AnnihilationApr 28, 2008 · 20 minWhen delivery of another collectible leads to Penny's lashing out at Leonard, he decides it's time to give up his habit, much to his…Episode details → ▶S1 E15 The Pork Chop IndeterminacyMay 5, 2008 · 22 minThe rest of the gang fall for Sheldon's twin sister, and Leonard's plan to win her heart is derailed when Sheldon declares he'll be…Episode details → ▶S1 E16 The Peanut ReactionMay 12, 2008 · 20 minPenny wants to throw a surprise party for Leonard, but Sheldon's indulgence at an electronics store throws her off-track.Episode details → ▶S1 E17 The Tangerine FactorMay 19, 2008 · 20 minPenny's break-up spurs Leonard to summon the courage to ask her out, and each goes to Sheldon for advice on their upcoming date.Episode details →