Watch The Big Bang Theory Online

TV-14 CBS 22m 2006 8.3

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The Big Bang Theory

A woman who moves into an apartment across the hall from two brilliant but socially awkward physicists shows them how little they know about life outside of the laboratory.


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The Big Bang Theory Full Episodes

S1 E1: Pilot

Aired: September 24th, 2007 @ 7:00 PM CST

Brilliant physicist roommates Leonard and Sheldon meet their new neighbor Penny, who begins showing them that as much as they know about science, they know little about actual living.


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S1 E2: The Big Bran Hypothesis

Aired: October 1st, 2007 @ 7:00 PM CST

Leonard volunteers to sign for a package in an attempt to make a good impression on Penny, but when he enlists Sheldon for help, his attempt at chivalry goes terribly awry.


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S1 E3: The Fuzzy Boots Corollary

Aired: October 8th, 2007 @ 7:00 PM CST

Leonard asks a woman out after he finds out that Penny is seeing someone.


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S1 E4: The Luminous Fish Effect

Aired: October 15th, 2007 @ 7:00 PM CST

Sheldon's getting fired forces him to explore what life has to offer outside physics, leaving Leonard to take drastic action to snap his friend out of his funk.


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S1 E5: The Hamburger Postulate

Aired: October 22nd, 2007 @ 7:00 PM CST

Fearing he's wasting his time on Penny, Leonard ends up making a connection with Leslie.


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S1 E6: The Middle Earth Paradigm

Aired: October 29th, 2007 @ 7:00 PM CST

Penny hosts a Hallowe'en party, putting Leonard, Sheldon, Wolowitz, and Koothrappali through a new test of their social skills.


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S1 E7: The Dumpling Paradox

Aired: November 5th, 2007 @ 7:00 PM CST

With Wolowitz AWOL with one of her friends, Penny's recruited to fill in for him on the guys' Halo team


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S1 E8: The Grasshopper Experiment

Aired: November 12th, 2007 @ 7:00 PM CST

Raj's parents set him up on a blind date, but just when he discovers he can talk to her, she shows interest in Sheldon.


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S1 E9: The Cooper-Hofstadter Polarization

Aired: March 17th, 2008 @ 7:00 PM CST

When 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 Penny's intervention only exacerbates the situation.


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S1 E10: The Loobenfeld Decay

Aired: March 24th, 2008 @ 7:00 PM CST

Leonard and Sheldon each lie to avoid seeing Penny's concert, but Sheldon's is a bit too complicated for his own good.


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S1 E11: The Pancake Batter Anomaly

Aired: March 31st, 2008 @ 7:00 PM CST

With 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 she's in for.


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S1 E12: The Jerusalem Duality

Aired: April 14th, 2008 @ 7:00 PM CST

With 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.


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S1 E13: The Bat Jar Conjecture

Aired: April 21st, 2008 @ 7:00 PM CST

Sheldon 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 superior.


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S1 E14: The Nerdvana Annihilation

Aired: April 28th, 2008 @ 7:00 PM CST

When 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 friends' protestation.


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S1 E15: The Pork Chop Indeterminacy

Aired: May 5th, 2008 @ 7:00 PM CST

The 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 the one to decide who can date her.


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S1 E16: The Peanut Reaction

Aired: May 12th, 2008 @ 7:00 PM CST

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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S1 E17: The Tangerine Factor

Aired: May 19th, 2008 @ 7:00 PM CST

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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