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The Big Bang Theory Full Episodes (135)

Latest Episode: The Bon Voyage Reaction [HD]

May 16, 2013 Season 6 Episode 24 watch on (Paid)

When Leonard is offered an exciting new job opportunity overseas, Sheldon grows very jealous and Penny is thrown for a loop. Meanwhile, Raj pushes Lucy a little too far in their relationship on the sixth season finale.
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The Lunar Excitation

May 24, 2010 Season 3 Episode 23

In the third season finale, Wolowitz and Koothrappali search for Sheldon's perfect match online - and find Sheldon's ideal woman (guest star MAYIM BIALIK). Meanwhile, Penny worries that dating Leonard has ruined her for normal guys.
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The Staircase Implementation

May 17, 2010 Season 3 Episode 22

Leonard tells Penny the story of how he met Sheldon for the first time...and what happened to the elevator.
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The Plimpton Stimulation [HD]

May 10, 2010 Season 3 Episode 21

Leonard and Sheldon compete for the attention of a famous female physicist - Dr. Elizabeth Plimpton (guest star JUDY GREER).
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The Spaghetti Catalyst

May 03, 2010 Season 3 Episode 20

When Leonard and Penny aren't speaking, Sheldon goes to extremes to keep them both happy and gets caught in a lie.
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The Wheaton Recurrence

Apr 12, 2010 Season 3 Episode 19

A fight between Leonard and Penny threatens their relationship, while Sheldon battles WIL WHEATON (guest starring as Himself) in bowling.
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The Pants Alternative

Mar 22, 2010 Season 3 Episode 18

Sheldon's friends come to his aid when his fear of public speaking stands between him and a coveted award.
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The Precious Fragmentation

Mar 08, 2010 Season 3 Episode 17

When the guys find a rare movie prop ring from The Lord of the Rings at a garage sale, it threatens to tear them apart - forcing them to choose the ring or their friendship.
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The Excelsior Acquisition

Mar 01, 2010 Season 3 Episode 16

Sheldon misses his chance to meet comic book legend STAN LEE (as himself) when he winds up in traffic court after he gets a ticket because of Penny.
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The Large Hadron Collision

Feb 08, 2010 Season 3 Episode 15

It?s Valentine?s Day, and Leonard can only bring one guest on a trip to see CERN's Large Hadron Collider (the world's largest and highest energy particle accelerator) in Switzerland. Will it be Sheldon or Penny?
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The Einstein Approximation

Feb 01, 2010 Season 3 Episode 14

Suffering from a case of physicists block, Sheldon's search for the answer to a physics problem leads him to work at the Cheesecake Factory with Penny.
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The Bozeman Reaction

Jan 18, 2010 Season 3 Episode 13

When their apartment is robbed, Leonard and Sheldon turn to their friends to create a state-of-the-art security system – and Sheldon struggles to cope.
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The Psychic Vortex

Jan 11, 2010 Season 3 Episode 12

While Sheldon and Koothrappali attend a university mixer, Leonard is upset to discover that Penny believes in psychics. Danica McKellar (The Wonder Years) guest stars as the object of Raj’s attraction.
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The Maternal Congruence

Dec 14, 2009 Season 3 Episode 11

A visit from Leonard's mother (guest star Christine Baranski) delights Sheldon and horrifies Leonard.
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The Gorilla Experiment

Dec 07, 2009 Season 3 Episode 10

Sheldon takes on his greatest challenge when he attempts to help Penny understand physics, and Wolowitz becomes jealous when Leonard starts hanging out with his new girlfriend.
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The Vengeance Formulation

Nov 23, 2009 Season 3 Episode 9

After he's humiliated on National Public Radio, Sheldon vows to destroy Kripke (guest star John Ross Bowie), and the guys help Sheldon exact his revenge. Meanwhile, Wolowitz tries not to destroy his new relationship with Bernadette (guest star Melissa Rauch). Katee Sackhoff (Battlestar Galactica) makes a cameo as Wolowitz’s dream girl.
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The Adhesive Duck Deficiency

Nov 16, 2009 Season 3 Episode 8

With Leonard, Howard and Raj away camping in the desert, an injured Penny has only Sheldon to rely on.
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The Guitarist Amplification

Nov 09, 2009 Season 3 Episode 7

Sheldon plays the peacemaker when an argument between Leonard and Penny proves “inconvenient” to him.
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The Cornhusker Vortex

Nov 02, 2009 Season 3 Episode 6

Sheldon teaches Leonard how to understand football, while a kite-fighting incident threatens Howard and Raj's friendship.
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The Creepy Candy Coating Corollary

Oct 19, 2009 Season 3 Episode 5

While Sheldon settles a score with his nemesis, Star Trek: The Next Generation's Wil Wheaton (guest starring as himself), Wolowitz begs Leonard to get Penny to set him up with one of her friends.
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The Pirate Solution

Oct 12, 2009 Season 3 Episode 4

Raj must find a new job or be sent back to India. Sheldon, however, has a solution – which leaves Leonard and Penny dealing with Howard as third wheel.
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The Gothowitz Deviation

Oct 05, 2009 Season 3 Episode 3

Howard and Raj (series star Kunal Nayyar) visit a Goth nightclub to pick up women, while Sheldon attempts to build a better Penny using chocolate-based behavior modification.
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The Jiminy Conjecture

Sep 28, 2009 Season 3 Episode 2

Leonard and Penny struggle to recover from an awkward first hookup, while Sheldon and Howard (series star Simon Helberg) stake their best comic books on a bet to determine the species of a cricket. Lewis Black guest stars as an entymologist who settles the high-stakes bet.
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The Electric Can Opener Fluctuation

Sep 21, 2009 Season 3 Episode 1

On the third season premiere, Sheldon (series star Jim Parsons) flees back to Texas in disgrace when he learns that the guys tampered with his arctic expedition data – forcing his friends to follow him, and threatening Leonard's (series star Johnny Galecki) hopes for a romantic encounter with Penny (series star Kaley Cuoco).
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The Big Bang Theory Clips & Interviews   collapse view

play video on TheWB.com play video on TheWB.com 01:35
The Big Bang Theory: “Science of Living Together”
play video on TheWB.com play video on TheWB.com 00:27
The Big Bang Theory: “Sheldon on Gift Giving”
play video on TheWB.com play video on TheWB.com 00:37
The Big Bang Theory: “Sheldon Learns Mandarin”
play video on TheWB.com play video on TheWB.com 01:04
The Big Bang Theory: “Chocolate”
play video on TheWB.com play video on TheWB.com 00:26
The Big Bang Theory: “Chased By Chicken”
play video on TheWB.com play video on TheWB.com 00:26
The Big Bang Theory: “Hindus and Cows”
play video on TheWB.com play video on TheWB.com 00:30
The Big Bang Theory: “Four Napkins”
play video on TheWB.com play video on TheWB.com 00:23
The Big Bang Theory: “Kites Ho”
play video on TheWB.com play video on TheWB.com 00:25
The Big Bang Theory: “Honey or Sweetie”
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The Big Bang Theory: The Complete Sixth Season [HD]
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The Big Bang Theory: The Complete Sixth Season
play video on TheWB.com play video on TheWB.com 00:35
The Big Bang Theory: “Sheldon Sleeps At Penny's”
play video on TheWB.com play video on TheWB.com 01:10
The Big Bang Theory: “Not Penny's Arm”
play video on TheWB.com play video on TheWB.com 00:50
The Big Bang Theory: “Sheldon's Group Of Cats”
play video on TheWB.com play video on TheWB.com 01:12
The Big Bang Theory: “Sheldon's Spot”
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