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The Big Bang Theory

The Big Bang Theory

Genre: Sitcom

Mensa-fied best friends and roommates Leonard and Sheldon, physicists who work at the California Institute of Technology, may be able to tell everybody more than they want to know about quantum physics, but getting through most basic social situations, especially ones involving women, totally baffles them. How lucky, then, that babe-alicious waitress/aspiring actress Penny moves in next door. Frequently seen hanging out with Leonard and Sheldon are friends and fellow Caltech scientists Wolowitz and Koothrappali. Will worlds collide? Does Einstein theorize in the woods?
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Episode Air Date Channel

The Plimpton Stimulation

S03, E21  (First Aired: May. 10, 2010)
Sheldon invites a famous physicist to the apartment, and competes with Leonard for her attention.
  • Wed 6/29
  • 6:00PM-6:30PM
  • 4
  • KSAS

The Nerdvana Annihilation

S01, E14  (First Aired: Apr. 28, 2008)
Leonard and the guys buy a time machine prop from a classic movie; Penny tells the guys their obsession with comics and toys is pathetic.
  • Wed 6/29
  • 6:30PM-7:00PM
  • 4
  • KSAS

The Fortification Implementation

S08, E20  (First Aired: Apr. 9, 2015)
Sheldon and Amy build a blanket fort -- and come to a crossroads in their relationship; Wolowitz meets a half-brother he didn't know he had; Leonard and Penny have an argument during an appearance on Wil Wheaton's podcast.
  • Wed 6/29
  • 7:00PM-7:30PM
  • 29
  • TBS

The Communication Deterioration

S08, E21  (First Aired: Apr. 16, 2015)
The guys fight over what message Raj should write for NASA in case of alien contact; Penny has to decide between auditioning for a movie or keeping her pharmaceutical sales job.
  • Wed 6/29
  • 7:30PM-8:00PM
  • 29
  • TBS

The Graduation Transmission

S08, E22  (First Aired: Apr. 23, 2015)
Wolowitz questions his engineering skills after he and Sheldon can't get a toy drone to fly; a canceled flight puts Leonard's plans in jeopardy; Raj sets his parents against one another after he's cut off financially.
  • Wed 6/29
  • 8:00PM-8:30PM
  • 29
  • TBS

The Maternal Combustion

S08, E23  (First Aired: Apr. 30, 2015)
When Sheldon's and Leonard's mothers finally meet, personalities collide; Howard decides to do his share of the chores -- with a little help from his friends.
  • Wed 6/29
  • 8:30PM-9:00PM
  • 29
  • TBS

The Commitment Determination

S08, E24  (First Aired: May. 7, 2015)
While facing dramatic changes in his relationship with Amy, Sheldon pushes Penny and Leonard to choose a wedding date.
  • Wed 6/29
  • 9:00PM-9:30PM
  • 29
  • TBS

Pilot

S01, E01  (First Aired: Sep. 24, 2007)
Leonard is happy to meet new neighbor Penny, but his roommate thinks he is chasing an impossible dream.
  • Wed 6/29
  • 9:30PM-10:00PM
  • 29
  • TBS

The Staircase Implementation

S03, E22  (First Aired: May. 17, 2010)
Leonard tells Penny about how he met Sheldon and what happened to the elevator.
  • Thu 6/30
  • 6:00PM-6:30PM
  • 4
  • KSAS

The Pork Chop Indeterminacy

S01, E15  (First Aired: May. 5, 2008)
Leonard devises a plan to eliminate his rivals when he, Wolowitz and Koothrappali all fall for Sheldon's twin sister, but his plan backfires when Sheldon decides to choose who his sister dates.
  • Thu 6/30
  • 6:30PM-7:00PM
  • 4
  • KSAS

The Application Deterioration

S09, E18  (First Aired: Mar. 10, 2016)
Leonard, Sheldon and Wolowitz file for a patent on their new invention; Penny, Amy and Bernadette give dating advice to Koothrappali after his breakup with Emily.
  • Thu 6/30
  • 7:00PM-7:31PM
  • 12
  • KWCH

The Big Bran Hypothesis

S01, E02  (First Aired: Oct. 1, 2007)
Leonard volunteers to sign for a package, hoping to make a good impression on Penny.
  • Thu 6/30
  • 8:00PM-8:30PM
  • 29
  • TBS

The Fuzzy Boots Corollary

S01, E03  (First Aired: Oct. 8, 2007)
Unhappy to learn that Penny is seeing someone, Leonard summons the courage to ask another woman on a date.
  • Thu 6/30
  • 8:30PM-9:00PM
  • 29
  • TBS

The Lunar Excitation

S03, E23  (First Aired: May. 24, 2010)
Raj and Howard set up an online dating profile for Sheldon and find the perfect woman.
  • Fri 7/1
  • 6:00PM-6:30PM
  • 4
  • KSAS

The Peanut Reaction

S01, E16  (First Aired: May. 12, 2008)
Penny learns that Leonard does not celebrate birthdays, so she plans a surprise party; Sheldon unexpectedly gets to live out one of his biggest fantasies in an electronics store.
  • Fri 7/1
  • 6:30PM-7:00PM
  • 4
  • KSAS

The Luminous Fish Effect

S01, E04  (First Aired: Oct. 15, 2007)
Getting fired gives Sheldon the opportunity to explore life beyond physics, but when he spends his time weaving ponchos and acting like a shut-in, Leonard calls Sheldon's mother for assistance.
  • Fri 7/1
  • 7:00PM-7:30PM
  • 29
  • TBS

The Hamburger Postulate

S01, E05  (First Aired: Oct. 22, 2007)
Leonard, realizing his pursuit of Penny is fruitless, has an unexpected encounter with a fellow scientist (Sara Gilbert).
  • Fri 7/1
  • 7:30PM-8:00PM
  • 29
  • TBS

The Middle Earth Paradigm

S01, E06  (First Aired: Oct. 29, 2007)
Leonard, Sheldon, Wolowitz and Koothrappali attend Penny's Halloween party.
  • Fri 7/1
  • 8:00PM-8:30PM
  • 29
  • TBS

The Dumpling Paradox

S01, E07  (First Aired: Nov. 5, 2007)
Penny sleeps on Leonard and Sheldon's couch when Wolowitz seduces her friend and takes over her apartment; in need of a fourth member, the guys ask Penny to join their ``Halo'' team.
  • Fri 7/1
  • 8:30PM-9:00PM
  • 29
  • TBS

The Jiminy Conjecture

S03, E02  (First Aired: Sep. 28, 2009)
Penny and Leonard try to recover from an awkward hookup; Howard and Sheldon make a high-stakes bet.
  • Sat 7/2
  • 5:00PM-5:30PM
  • 4
  • KSAS

The Gothowitz Deviation

S03, E03  (First Aired: Oct. 5, 2009)
Howard and Raj hit a Goth nightclub to meet women; Sheldon tries chocolate-based behavior modification on Penny.
  • Sat 7/2
  • 5:30PM-6:00PM
  • 4
  • KSAS

The Grasshopper Experiment

S01, E08  (First Aired: Nov. 12, 2007)
On a blind date, Koothrappali discovers that he can talk to the opposite sex after a few drinks, but his date takes an interest in Sheldon.
  • Sat 7/2
  • 6:30PM-7:00PM
  • 29
  • TBS

The Cooper-Hofstadter Polarization

S01, E09  (First Aired: Mar. 17, 2008)
Penny tries to mediate when Sheldon and Leonard disagree on whether to present their joint findings at a physics conference.
  • Sat 7/2
  • 7:00PM-7:30PM
  • 29
  • TBS

The Loobenfeld Decay

S01, E10  (First Aired: Mar. 24, 2008)
Leonard and Sheldon try to avoid seeing Penny perform after hearing her sing, but the elaborate lie Sheldon tells leads to an unexpected result.
  • Sat 7/2
  • 7:30PM-8:00PM
  • 29
  • TBS

The Pancake Batter Anomaly

S01, E11  (First Aired: Mar. 31, 2008)
Leonard and the boys avoid Sheldon when he gets sick, leaving Penny to nurse him back to health.
  • Sat 7/2
  • 8:00PM-8:30PM
  • 29
  • TBS

The Jerusalem Duality

S01, E12  (First Aired: Apr. 14, 2008)
Sheldon and Leonard look for a way to derail a 15-year-old physics prodigy's research.
  • Sat 7/2
  • 8:30PM-9:00PM
  • 29
  • TBS

The Bat Jar Conjecture

S01, E13  (First Aired: Apr. 21, 2008)
When Sheldon tries to prove his mental superiority as they train for the Physics Bowl, the guys kick him off the team and bring his nemesis (Sara Gilbert) aboard.
  • Sat 7/2
  • 9:00PM-9:30PM
  • 29
  • TBS

The Nerdvana Annihilation

S01, E14  (First Aired: Apr. 28, 2008)
Leonard and the guys buy a time machine prop from a classic movie; Penny tells the guys their obsession with comics and toys is pathetic.
  • Sat 7/2
  • 9:30PM-10:00PM
  • 29
  • TBS

The Monopolar Expedition

S02, E23  (First Aired: May. 11, 2009)
While Leonard prepares for a three-month science expedition, he and Penny re-evaluate their feelings for each other.
  • Sun 7/3
  • 10:05PM-10:35PM
  • 4
  • KSAS

The Electric Can Opener Fluctuation

S03, E01  (First Aired: Sep. 21, 2009)
After tampering with Sheldon's Arctic-expedition data, the guys follow him back to Texas, which threatens Leonard's chances for romance with Penny.
  • Sun 7/3
  • 10:35PM-11:05PM
  • 4
  • KSAS

The Robotic Manipulation

S04, E01  (First Aired: Sep. 23, 2010)
Penny tags along on Sheldon's first date; Wolowitz finds a new use for a robotic arm.
  • Mon 7/4
  • 6:00PM-6:30PM
  • 4
  • KSAS

The Vartabedian Conundrum

S02, E10  (First Aired: Dec. 8, 2008)
Leonard asks Penny for advice when his new relationship starts moving too fast.
  • Mon 7/4
  • 6:30PM-7:00PM
  • 4
  • KSAS

The Cruciferous Vegetable Amplification

S04, E02  (First Aired: Sep. 30, 2010)
Realizing he will not live long enough to download his consciousness into a robot body, Sheldon tries to extend his life span.
  • Tue 7/5
  • 6:00PM-6:30PM
  • 4
  • KSAS

The Killer Robot Instability

S02, E12  (First Aired: Jan. 12, 2009)
When Penny's comment about Wolowitz's love life sends him into a depressed stupor, his friends lose their most important teammate in an upcoming fighting-robot competition.
  • Tue 7/5
  • 6:30PM-7:00PM
  • 4
  • KSAS

The Pork Chop Indeterminacy

S01, E15  (First Aired: May. 5, 2008)
Leonard devises a plan to eliminate his rivals when he, Wolowitz and Koothrappali all fall for Sheldon's twin sister, but his plan backfires when Sheldon decides to choose who his sister dates.
  • Tue 7/5
  • 7:00PM-7:30PM
  • 29
  • TBS

The Peanut Reaction

S01, E16  (First Aired: May. 12, 2008)
Penny learns that Leonard does not celebrate birthdays, so she plans a surprise party; Sheldon unexpectedly gets to live out one of his biggest fantasies in an electronics store.
  • Tue 7/5
  • 7:30PM-8:00PM
  • 29
  • TBS

The Tangerine Factor

S01, E17  (First Aired: May. 19, 2008)
When Leonard finally works up the courage to ask Penny out on a date, they each turn to Sheldon for advice.
  • Tue 7/5
  • 8:00PM-8:30PM
  • 29
  • TBS

The Bad Fish Paradigm

S02, E01  (First Aired: Sep. 22, 2008)
Penny's first date with Leonard goes awry; Penny finds Sheldon to be an unwilling confidant.
  • Tue 7/5
  • 8:30PM-9:00PM
  • 29
  • TBS

The Codpiece Topology

S02, E02  (First Aired: Sep. 29, 2008)
After seeing Penny with a handsome new guy, Leonard rushes into a rebound relationship with Sheldon's nemesis, Leslie Winkle.
  • Tue 7/5
  • 9:30PM-10:00PM
  • 29
  • TBS

The Zazzy Substitution

S04, E03  (First Aired: Oct. 7, 2010)
When Sheldon searches for an alternative to human companionship, the guys become concerned.
  • Wed 7/6
  • 6:00PM-6:30PM
  • 4
  • KSAS

The Friendship Algorithm

S02, E13  (First Aired: Jan. 19, 2009)
Sheldon develops a scientific procedure for making friends; Kripke controls a new supercomputer.
  • Wed 7/6
  • 6:30PM-7:00PM
  • 4
  • KSAS

The Barbarian Sublimation

S02, E03  (First Aired: Oct. 6, 2008)
Sheldon creates a monster when he introduces Penny to online gaming.
  • Wed 7/6
  • 7:00PM-7:30PM
  • 29
  • TBS

The Griffin Equivalency

S02, E04  (First Aired: Oct. 13, 2008)
Raj gets an inflated ego and makes a play for Penny after being referenced in a magazine article.
  • Wed 7/6
  • 7:30PM-8:00PM
  • 29
  • TBS

The Euclid Alternative

S02, E05  (First Aired: Oct. 20, 2008)
Leonard and his friends stage an intervention to force Sheldon to face his fear of driving.
  • Wed 7/6
  • 8:00PM-8:30PM
  • 29
  • TBS

The Cooper-Nowitzki Theorem

S02, E06  (First Aired: Nov. 3, 2008)
Sheldon and the gang are confused when a young grad student is attracted to him.
  • Wed 7/6
  • 8:30PM-9:00PM
  • 29
  • TBS

The Panty Piñata Polarization

S02, E07  (First Aired: Nov. 10, 2008)
When Sheldon bans Penny from the apartment for a series of petty infractions, Penny vows to get revenge.
  • Wed 7/6
  • 9:00PM-9:30PM
  • 29
  • TBS

The Lizard-Spock Expansion

S02, E08  (First Aired: Nov. 17, 2008)
Leonard inadvertently steals away the new woman Wolowitz thinks is the love of his life.
  • Wed 7/6
  • 9:30PM-10:00PM
  • 29
  • TBS

The Hot Troll Deviation

S04, E04  (First Aired: Oct. 14, 2010)
An embarrassing secret of Wolowitz's is revealed; Raj and Sheldon get into a war at work.
  • Thu 7/7
  • 6:00PM-6:30PM
  • 4
  • KSAS

The Financial Permeability

S02, E14  (First Aired: Feb. 2, 2009)
Sheldon's solution to Penny's financial difficulty leads to a confrontation between Leonard and Penny's ex-boyfriend.
  • Thu 7/7
  • 6:30PM-7:00PM
  • 4
  • KSAS

The Solder Excursion Diversion

S09, E19  (First Aired: Mar. 31, 2016)
Sheldon makes a surprise revelation when Amy buys him a new laptop; Leonard and Wolowitz get sold out by Koothrappali after lying to their wives to attend a movie screening.
  • Thu 7/7
  • 7:00PM-7:31PM
  • 12
  • KWCH

The White Asparagus Triangulation

S02, E09  (First Aired: Nov. 24, 2008)
Sheldon is thrilled when Leonard starts dating a woman who meets Sheldon's stringent standards.
  • Thu 7/7
  • 8:00PM-8:30PM
  • 29
  • TBS

The Vartabedian Conundrum

S02, E10  (First Aired: Dec. 8, 2008)
Leonard asks Penny for advice when his new relationship starts moving too fast.
  • Thu 7/7
  • 8:30PM-9:00PM
  • 29
  • TBS

The Desperation Emanation

S04, E05  (First Aired: Oct. 21, 2010)
Leonard realizes he is the only one in his group without a girlfriend; Sheldon wants to get rid of his girlfriend.
  • Fri 7/8
  • 6:00PM-6:30PM
  • 4
  • KSAS

The Maternal Capacitance

S02, E15  (First Aired: Feb. 9, 2009)
Leonard and Penny are drawn together after a disastrous visit from Leonard's mother (Christine Baranski).
  • Fri 7/8
  • 6:30PM-7:00PM
  • 4
  • KSAS

The Bath Item Gift Hypothesis

S02, E11  (First Aired: Dec. 15, 2008)
Penny starts dating Leonard's handsome colleague; Leonard and his friends are tortured by Sheldon's obsession with gift-giving etiquette.
  • Fri 7/8
  • 7:00PM-7:30PM
  • 29
  • TBS

The Killer Robot Instability

S02, E12  (First Aired: Jan. 12, 2009)
When Penny's comment about Wolowitz's love life sends him into a depressed stupor, his friends lose their most important teammate in an upcoming fighting-robot competition.
  • Fri 7/8
  • 7:30PM-8:00PM
  • 29
  • TBS

The Friendship Algorithm

S02, E13  (First Aired: Jan. 19, 2009)
Sheldon develops a scientific procedure for making friends; Kripke controls a new supercomputer.
  • Fri 7/8
  • 8:00PM-8:30PM
  • 29
  • TBS

The Financial Permeability

S02, E14  (First Aired: Feb. 2, 2009)
Sheldon's solution to Penny's financial difficulty leads to a confrontation between Leonard and Penny's ex-boyfriend.
  • Fri 7/8
  • 8:30PM-9:00PM
  • 29
  • TBS

The Guitarist Amplification

S03, E07  (First Aired: Nov. 9, 2009)
Sheldon tries to make peace when Leonard and Penny get into an argument.
  • Sat 7/9
  • 5:00PM-5:30PM
  • 4
  • KSAS

The Adhesive Duck Deficiency

S03, E08  (First Aired: Nov. 16, 2009)
Penny is forced to rely on Sheldon when she is injured while Howard, Leonard and Raj are away.
  • Sat 7/9
  • 5:30PM-6:00PM
  • 4
  • KSAS

The Maternal Capacitance

S02, E15  (First Aired: Feb. 9, 2009)
Leonard and Penny are drawn together after a disastrous visit from Leonard's mother (Christine Baranski).
  • Sat 7/9
  • 6:30PM-7:00PM
  • 29
  • TBS

The Cushion Saturation

S02, E16  (First Aired: Mar. 2, 2009)
A paintball game leads to a fight between Sheldon and Penny, and romance for Leslie and Wolowitz.
  • Sat 7/9
  • 7:00PM-7:30PM
  • 29
  • TBS

The Terminator Decoupling

S02, E17  (First Aired: Mar. 9, 2009)
Leonard, Sheldon and Wolowitz are ecstatic to learn that a famous science-fiction actress (Summer Glau) is aboard the train they are taking to San Francisco.
  • Sat 7/9
  • 7:30PM-8:00PM
  • 29
  • TBS

The Work Song Nanocluster

S02, E18  (First Aired: Mar. 16, 2009)
Penny's home business turns into a complete nightmare when Sheldon takes over.
  • Sat 7/9
  • 8:00PM-8:30PM
  • 29
  • TBS

The Dead Hooker Juxtaposition

S02, E19  (First Aired: Mar. 30, 2009)
Penny develops a rivalry with a sexy new female neighbor who threatens her position as queen bee of the building.
  • Sat 7/9
  • 8:30PM-9:00PM
  • 29
  • TBS

The Hofstadter Isotope

S02, E20  (First Aired: Apr. 13, 2009)
Wolowitz and Leonard decide to check out a local bar on Ladies' Night.
  • Sat 7/9
  • 9:00PM-9:30PM
  • 29
  • TBS

The Vegas Renormalization

S02, E21  (First Aired: Apr. 27, 2009)
Koothrappali and Leonard take Wolowitz to Las Vegas; Sheldon is forced to bunk with Penny when he gets locked out of his apartment.
  • Sat 7/9
  • 9:30PM-10:00PM
  • 29
  • TBS

The Creepy Candy Coating Corollary

S03, E05  (First Aired: Oct. 19, 2009)
Sheldon seeks revenge on his nemesis, Wil Wheaton; Wolowitz wants Penny to set him up with one of her friends.
  • Sun 7/10
  • 10:05PM-10:35PM
  • 4
  • KSAS

The Cornhusker Vortex

S03, E06  (First Aired: Nov. 2, 2009)
Sheldon teaches Leonard how to understand football; a kite-fighting incident threatens Howard and Raj's friendship.
  • Sun 7/10
  • 10:35PM-11:05PM
  • 4
  • KSAS

The Irish Pub Formulation

S04, E06  (First Aired: Oct. 28, 2010)
Leonard keeps an affair a secret from Sheldon, Howard and Raj.
  • Mon 7/11
  • 6:00PM-6:30PM
  • 4
  • KSAS

The Cushion Saturation

S02, E16  (First Aired: Mar. 2, 2009)
A paintball game leads to a fight between Sheldon and Penny, and romance for Leslie and Wolowitz.
  • Mon 7/11
  • 6:30PM-7:00PM
  • 4
  • KSAS

The Apology Insufficiency

S04, E07  (First Aired: Nov. 4, 2010)
Sheldon's interview with the FBI jeopardizes Wolowitz's security clearance.
  • Tue 7/12
  • 6:00PM-6:30PM
  • 4
  • KSAS

The Classified Materials Turbulence

S02, E22  (First Aired: May. 4, 2009)
Penny makes a surprising revelation about Leonard while on her date with Stuart; Wolowitz finds a critical design flaw in his NASA project.
  • Tue 7/12
  • 7:00PM-7:30PM
  • 29
  • TBS