The Big Bang Theory season 3

The Electric Can Opener Fluctuation S3, Ep1
After returning from the North Pole, a conflict among the guys sends Sheldon back to Texas and interferes with Leonard's reunion with Penny.


The Jiminy Conjecture S3, Ep2
28 Sep. 2009 The Jiminy Conjecture
Leonard and Penny's first night together goes awkwardly. Sheldon and Howard wager on the species of a cricket.


The Gothowitz Deviation S3, Ep3
5 Oct. 2009 The Gothowitz Deviation
Sheldon attempts to covertly alter Penny's habits, while Howard and Raj try their luck meeting women at a Goth-style club.


The Pirate Solution S3, Ep4
12 Oct. 2009 The Pirate Solution
Raj must find a new job or be sent back to India, but Sheldon has a solution, which leaves Leonard and Penny dealing with Howard as third wheel.


The Creepy Candy Coating Corollary S3, Ep5
19 Oct. 2009 The Creepy Candy Coating Corollary
Howard begs Penny to set him up with one of her friends, while Sheldon seeks payback against Wil Wheaton.

The Cornhusker Vortex S3, Ep6
2 Nov. 2009 The Cornhusker Vortex
To blend in better with several of Penny's friends from back home, Leonard learns about football...from Sheldon. Meanwhile, a loss in a kite war threatens to end Raj and Howard's friends

The Guitarist Amplification S3, Ep7
9 Nov. 2009 The Guitarist Amplification
Sheldon is forced to play peacemaker when Leonard and Penny have an argument, mainly because their fighting is bringing back repressed childhood memories.


The Adhesive Duck Deficiency S3, Ep8
16 Nov. 2009 The Adhesive Duck Deficiency
Penny dislocates her shoulder in the bathtub, and is forced to turn to Sheldon for help. Meanwhile, the rest of the guys accidentally get stoned in the desert while waiting for a meteor shower.

The Vengeance Formulation S3, Ep9
23 Nov. 2009 The Vengeance Formulation
Sheldon vows payback after Kripke humiliates him on the radio. Howard gets advice concerning his relationship with Bernadette...from "Battlestar Galactica's" Katee Sackh

The Gorilla Experiment S3, Ep10
7 Dec. 2009 The Gorilla Experiment
Sheldon attempts to help Penny understand physics to impress Leonard, while Howard becomes jealous when Bernadette takes an interest in Leonard's research.

The Maternal Congruence S3, Ep11
14 Dec. 2009 The Maternal Congruence
Leonard's mother makes a visit to his dismay and Sheldon's delight.

The Psychic Vortex S3, Ep12
11 Jan. 2010 The Psychic Vortex
Raj talks Sheldon into being his wingman at a university mixer. Leonard has trouble dealing with Penny consulting a psychic.

The Bozeman Reaction S3, Ep13
18 Jan. 2010 The Bozeman Reaction
When their apartment is robbed, Leonard and Sheldon turn to their friends to create a state-of-the-art security system.

The Einstein Approximation S3, Ep14
1 Feb. 2010 The Einstein Approximation
Sheldon acts even more strangely when he is stumped by a difficult physics question, so he is forced to resort to Einstein-inspired measures to unclutter his mind and solve the problem.

The Large Hadron Collision S3, Ep15
8 Feb. 2010 The Large Hadron Collision
When Leonard must travel to Switzerland on Valentine's Day to visit the CERN laboratory, Sheldon uses any and all means to be his guest instead of Penny.

The Excelsior Acquisition S3, Ep16
1 Mar. 2010 The Excelsior Acquisition
Sheldon misses an opportunity to get Stan Lee's autograph because he has to make an appearance in traffic court.

The Precious Fragmentation S3, Ep17
8 Mar. 2010 The Precious Fragmentation
When the guys find an actual ring from the "Lord of the Rings" trilogy at a garage sale, their friendship is threatened.

The Pants Alternative S3, Ep18
22 Mar. 2010 The Pants Alternative
Sheldon needs the gang's help in overcoming his fear of public speaking when he receives an award.

The Wheaton Recurrence S3, Ep19
12 Apr. 2010 The Wheaton Recurrence
Sheldon takes on his newest nemesis, Star Trek's Wil Wheaton, in bowling. Leonard and Penny's relationship comes to a crossroad.

The Spaghetti Catalyst S3, Ep20
3 May 2010 The Spaghetti Catalyst
With Leonard and Penny now broken up, Sheldon is forced to go behind Leonard's back to spend time with her.

The Plimpton Stimulation S3, Ep21
10 May 2010 The Plimpton Stimulation
Sheldon and Penny are both disturbed and disappointed when Leonard hooks up with Sheldon's visiting female physicist friend.

The Staircase Implementation S3, Ep22
17 May 2010 The Staircase Implementation
After Leonard and Sheldon get in a fight over the thermostat, Leonard goes to Penny's apartment and tells her about how he met Sheldon for the first time and how they became roommates...and what happened to the elevator.

The Lunar Excitation S3, Ep23
24 May 2010 The Lunar Excitation
Penny has a night of angry, drunken sex with Leonard, which Leonard soon misinterprets as something other than a mistake. Meanwhile, Howard and Raj search for Sheldon's perfect match online.