The Big Bang Theory Season 2 Watch The Big Bang Theory Episodes online

Watch The Big Bang Theory Season 2 episodes online  

View episodes from : Season 1 (17)   |   Season 2 (23)   |   Season 3 (23)   |   Season 4 (24)   |   Season 5 (24)   |   Season 6 (24)   |   Season 7 (24)   |   Season 8 (24)   |   Season 9 (24)   |   Season 10 (24)   |   Season 11 (11)   |  

The Big Bang Theory season 2 episode 1Episode 1: The Bad Fish Paradigm

Leonard and Penny return from their date, but it ends in an odd matter when Penny wants to take things slower. While Leonard is living his normal ever...

Air Date: Sep 22, 2008


The Big Bang Theory season 2 episode 2Episode 2: The Codpiece Topology

After Leonard sees Penny with a new guy, he decides it’s time to move on with his life. When Leslie Winkle enters the lab, she invites Leonard ...

Air Date: Sep 29, 2008


The Big Bang Theory season 2 episode 3Episode 3: The Barbarian Sublimation

When Penny becomes depressed due to the thoughts that she fails everything in life, the guys try everything to make her better, but with no results. H...

Air Date: Oct 06, 2008


The Big Bang Theory season 2 episode 4Episode 4: The Griffin Equivalency

When Koothrappali discovers a new planet, he is honored the ”30 under 30” award from People Magazine, and the guys try to show their spiri...

Air Date: Oct 13, 2008


The Big Bang Theory season 2 episode 5Episode 5: The Euclid Alternative

When Leonard does experiments where he needs to use a laser only available during the night, he is unable to drive Sheldon to and from work in the mor...

Air Date: Oct 20, 2008


The Big Bang Theory season 2 episode 6Episode 6: The Cooper-Nowitzki Theorem

After speaking at a student seminar, Sheldon quickly finds himself in an unusual situation; a girl approaches him interested in helping him with his r...

Air Date: Nov 03, 2008


The Big Bang Theory season 2 episode 7Episode 7: The Panty Piñata Polarization

Penny vows to get revenge on Sheldon when he bans her from the apartment for a series of petty infractions.

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Air Date: Nov 10, 2008


The Big Bang Theory season 2 episode 8Episode 8: The Lizard-Spock Expansion

Wolowitz has once again used his “dating skills” to make a mess when he invites a girl, Stephanie, to drive the Mars Rover, only to have i...

Air Date: Nov 17, 2008


The Big Bang Theory season 2 episode 9Episode 9: The White Asparagus Triangulation

The relationship between Leonard and Stephanie is going quite well, but Sheldon really likes her and is afraid Leonard isn’t manly enough. Ther...

Air Date: Nov 24, 2008


The Big Bang Theory season 2 episode 10Episode 10: The Vartabedian Conundrum

When Penny uncovers the truth in Leonard and Stephanie’s relationship, that they are only dating because she likes him, Penny decides to counci...

Air Date: Dec 08, 2008


The Big Bang Theory season 2 episode 11Episode 11: The Bath Item Gift Hypothesis

When Leonard meets David Underhill, an award-winning scientist who is the exact opposite of Leonard (handsome, cool and intelligent), Leonard is put i...

Air Date: Dec 15, 2008


The Big Bang Theory season 2 episode 12Episode 12: The Killer Robot Instability

After Kripke challenges them to a robot duel, the guys build MONTE; a killer robot with many deadly features. But when their robot loses the competiti...

Air Date: Jan 12, 2009


The Big Bang Theory season 2 episode 13Episode 13: The Friendship Algorithm

When Sheldon finds out that Kripke is the only person who controls a new supercomputer at the University, Sheldon makes it his mission to befriend Kri...

Air Date: Jan 19, 2009


The Big Bang Theory season 2 episode 14Episode 14: The Financial Permeability

After Penny enters a financial crisis, Sheldon lends her money, which she is uncomfortable about. Leonard decides to figure out what the cause of the ...

Air Date: Feb 02, 2009


The Big Bang Theory season 2 episode 15Episode 15: The Maternal Capacitance

When Leonard’s mother, Beverly, comes for a visit, a normal week for the guys and Penny takes a much unexpected turn; Beverly is a neuroscienti...

Air Date: Feb 09, 2009


The Big Bang Theory season 2 episode 16Episode 16: The Cushion Saturation

Penny finds herself in the worst situation ever when she accidentally shoots a paintball pellet on Sheldon’s cushion, also known as his “...

Air Date: Mar 02, 2009


The Big Bang Theory season 2 episode 17Episode 17: The Terminator Decoupling

Aboard a train on their way to San Francisco for a symposium held by Dr. George Smoot, each of the guys has their own separate problems on the train. ...

Air Date: Mar 09, 2009


The Big Bang Theory season 2 episode 18Episode 18: The Work Song Nanocluster

Penny wants to start her own business, making hair clips she calls ”Penny Blossoms”, but she has no marketing, manufacturing or commercial...

Air Date: Mar 16, 2009


The Big Bang Theory season 2 episode 19Episode 19: The Dead Hooker Juxtaposition

Penny feels threatened when a new, very hot girl moves into the apartment right above the guy’s and start using her looks to get help from the ...

Air Date: Mar 30, 2009


The Big Bang Theory season 2 episode 20Episode 20: The Hofstadter Isotope

When Stuart, the sales clerk at the comic book store, charms Penny completely and gets her to go out with him, everyone is baffled at how he did it. L...

Air Date: Apr 13, 2009


The Big Bang Theory season 2 episode 21Episode 21: The Vegas Renormalization

When Leslie breaks up with Howard, he becomes so devastated he agrees to go with Leonard and Koothrappali to Las Vegas to cheer him up. But when they ...

Air Date: Apr 27, 2009


The Big Bang Theory season 2 episode 22Episode 22: The Classified Materials Turbulence

Things begin to look up for Leonard when Penny makes a surprising revelation on her second date with Stuart. Meanwhile, Wolowitz enlists his friend...

Air Date: May 04, 2009


The Big Bang Theory season 2 episode 23Episode 23: The Monopolar Expedition

When Sheldon meets with the University’s Dean, who requests that he leads an arctic expedition to the North Pole, Sheldon asks the guys if they...

Air Date: May 11, 2009