The Big Bang Theory

2007
4.7
2.28K reviews
TV-UNRATED
Rating
Eligible
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Season 3 episodes (23)

1 The Electric Can Opener Fluctuation
9/21/09
Season-only
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).
2 The Jiminy Conjecture
9/28/09
Season-only
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.
3 The Gothowitz Deviation
10/5/09
Season-only
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.
4 The Pirate Solution
10/12/09
Season-only
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.
5 The Creepy Candy Coating Corollary
10/19/09
Season-only
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.
6 The Cornhusker Vortex
11/2/09
Season-only
Sheldon teaches Leonard how to understand football, while a kite-fighting incident threatens Howard and Raj's friendship.
7 The Guitarist Amplification
11/9/09
Season-only
Sheldon plays the peacemaker when an argument between Leonard and Penny proves "inconvenient" to him.
8 The Adhesive Duck Deficiency
11/16/09
Season-only
With Leonard, Howard and Raj away camping in the desert, an injured Penny has only Sheldon to rely on.
9 The Vengeance Formulation
11/23/09
Season-only
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.
10 The Gorilla Experiment
12/7/09
Season-only
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.
11 The Maternal Congruence
12/14/09
Season-only
A visit from Leonard's mother (guest star CHRISTINE BARANSKI) delights Sheldon and horrifies Leonard.
12 The Psychic Vortex
1/11/10
Season-only
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.
13 The Bozeman Reaction
1/18/10
Season-only
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.
14 The Einstein Approximation
2/1/10
Season-only
Suffering from a case of "physicist's block," Sheldon's search for the answer to a physics problem leads him to work at the Cheesecake Factory with Penny.
15 The Large Hadron Collision
2/8/10
Season-only
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?
16 The Excelsior Acquisition
3/1/10
Season-only
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.
17 The Precious Fragmentation
3/8/10
Season-only
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.
18 The Pants Alternative
3/22/10
Season-only
Sheldon's friends come to his aid when his fear of public speaking stands between him and a coveted award.
19 The Wheaton Recurrence
4/12/10
Season-only
A fight between Leonard and Penny threatens their relationship, while Sheldon battles WIL WHEATON (guest starring as Himself) in bowling.
20 The Spaghetti Catalyst
5/3/10
Season-only
When Leonard and Penny aren't speaking, Sheldon goes to extremes to keep them both happy and gets caught in a lie.
21 The Plimpton Stimulation
5/10/10
Season-only
Leonard and Sheldon compete for the attention of a famous female physicist -- Dr. Elizabeth Plimpton (guest star JUDY GREER).
22 The Staircase Implementation
5/17/10
Season-only
Leonard tells Penny the story of how he met Sheldon for the first time...and what happened to the elevator.
23 The Lunar Excitation
5/24/10
Season-only
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.

About this show

"Two and a Half Men" co-creator/executive producer Chuck Lorre and "Gilmore Girls" co-executive producer Bill Prady team up to create "The Big Bang Theory," a new comedy about a pair of brilliant physicists who understand how the universe works but have no clue about how to interact with people ... especially women ... and specifically the free-spirited beauty who moves in next door.

Ratings and reviews

4.7
2.28K reviews
Monalee Rodriguez
May 4, 2022
My absolute favorite!! No matter how many times I rewatch this show, it never fails to cheer me up or make me laugh. All of them were cast perfectly. I wish the show ran longer, but I think they ended it beautifully. I cried on the last episode. I haven't watched another show that topped this.
Shaun Laflamme
May 5, 2017
When this show first aired I was not a person to watch it but after a few years I decided to give it a shot after some great comments and ABSOLUTELY LOVED IT, I went out and bought the first two seasons and binge watched it, now I own all episodes of this show, so if you are down and out and need a laugh I recommend taking 21 minutes to watch at least one episode, never know it might put that smile back on. This show is "Off the chain mail" Lenonard Hofstadter.
siddharth sharma
May 22, 2020
I've just finished watching all 12 seasons, 232 episodes of the big bang theory for the 10th whole time, or 2320 episodes. I absolutely love this show, addicted, and I rewatch it as soon as I finish...I just saw the last episode, and Im gonna go watch the pilot right now