Season: 1 2 3 4 Other All

Season 4 Episode 4 The Hot Troll Deviation

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Season 4 Episode 3 The Zazzy Substitution

The guys are concerned as Sheldon searches for an alternative to human companionship. The guys are concerned as Sheldon searches for an alternative to human companionship.

0.0 537 views

Season 4 Episode 2 The Cruciferous Vegetable Amplification

Realizing he will not live long enough to download his consciousness into a robot body, Sheldon tries to extend his life span. Realizing he will not live long enough to download his consciousness into a robot body, Sheldon tries to extend his life span.

10.0 204 views

Season 4 Episode 1 The Robotic Manipulation

Penny tags along on Sheldon's first date; Wolowitz finds a new use for a robotic arm. Penny tags along on Sheldon's first date; Wolowitz finds a new use for a robotic arm.

5.3 365 views

Season 3 Episode 23 The Lunar Excitation

While Penny worries that dating Leonard has ruined her for normal guys, Wolowitz and Koothrappali search for Sheldon's perfect match online. While Penny worries that dating Leonard has ruined her for normal guys, Wolowitz and Koothrappali search for Sheldon's perfect match online.

0.0 757 views

Season 3 Episode 22 The Staircase Implementation

Leonard tells Penny about how he met Sheldon for the first time...and what happened to the elevator. Leonard tells Penny about how he met Sheldon for the first time...and what happened to the elevator.

0.0 631 views

Season 3 Episode 21 The Plimpton Stimulation

Leonard and Sheldon compete for the attention of a famous female physicist. Leonard and Sheldon compete for the attention of a famous female physicist.

0.0 654 views

Season 3 Episode 20 The Spaghetti Catalyst

When Leonard and Penny aren't speaking, Sheldon goes to extremes to keep them both happy. When Leonard and Penny aren't speaking, Sheldon goes to extremes to keep them both happy.

0.0 564 views

Season 3 Episode 19 The Wheaton Recurrence

A fight between Leonard and Penny threatens their relationship, while Sheldon battles Wil Wheaton in bowling. A fight between Leonard and Penny threatens their relationship, while Sheldon battles Wil Wheaton in bowling.

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Season 3 Episode 18 The Pants Alternative

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

0.0 580 views

Season 3 Episode 17 The Precious Fragmentation

When the guys find a ring from "The Lord of the Rings" at a garage sale, it threatens to tear them apart. When the guys find a ring from "The Lord of the Rings" at a garage sale, it threatens to tear them apart.

10.0 571 views

Season 3 Episode 16 The Excelsior Acquisition

Sheldon winds up in traffic court when he gets a ticket because of Penny. Sheldon winds up in traffic court when he gets a ticket because of Penny.

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Season 3 Episode 15 The Large Hadron Collision

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 on Valentine's Day. 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 on Valentine's Day.

8.0 564 views

Season 3 Episode 14 The Einstein Approximation

Sheldon's search for the answer to a physics problem leads him to work at the Cheesecake Factory with Penny. Sheldon's search for the answer to a physics problem leads him to work at the Cheesecake Factory with Penny.

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Season 3 Episode 13 Full Episode

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Season 3 Episode 12 The Psychic Vortex

While Sheldon and Koothrappali attend a university mixer, Leonard is upset to discover that Penny believes in psychics. While Sheldon and Koothrappali attend a university mixer, Leonard is upset to discover that Penny believes in psychics.

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Season 3 Episode 11 Full Episode

Leonard's mother (Christine Baranski) visits, which pleases Sheldon but upsets Leonard. Leonard's mother (Christine Baranski) visits, which pleases Sheldon but upsets Leonard.

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Season 3 Episode 10 Full episode

Sheldon attempts to help Penny understand Leonard's work, and Wolowitz becomes jealous when Leonard starts hanging out with his new girlfriend. Sheldon attempts to help Penny understand Leonard's work, and Wolowitz becomes jealous when Leonard starts hanging out with his new girlfriend.

0.0 587 views

Season 3 Episode 9 The Vengeance Formulation

Barry Kripke embarrasses Sheldon on NPR, and the gang rallies to help him get his revenge. Wolowitz, desperate to keep his romance with Bernadette alive, gets advice from a fantasy version of Katee Sackhoff. Barry Kripke embarrasses Sheldon on NPR, and the gang rallies to help him get his revenge. Wolowitz, desperate to keep his romance with Bernadette alive, gets advice from a fantasy version of Katee Sackhoff.

0.0 667 views

Season 3 Episode 8 The Adhesive Duck Deficiency

With the rest of the gang off on a desert camping trip, Sheldon must play hero to an injured Penny. With the rest of the gang off on a desert camping trip, Sheldon must play hero to an injured Penny.

10.0 712 views

Season 3 Episode 7 The Guitarist Amplification

A squabble between Leonard and Penny sees Sheldon playing mediator, though out of his own incovenience from the sitiation rather than altruism. A squabble between Leonard and Penny sees Sheldon playing mediator, though out of his own incovenience from the sitiation rather than altruism.

0.0 586 views

Season 3 Episode 6 The Cornhusker Vortex

Leonard gets tutored in understanding football by Sheldon, while a kite mishap puts a rift between Wolowitz and Raj. Leonard gets tutored in understanding football by Sheldon, while a kite mishap puts a rift between Wolowitz and Raj.

0.0 565 views

Season 3 Episode 5 The Creepy Candy Coating Corollary

Sheldon looks forward to squaring off against the the one actor from the Star Trek universe he holds enmity towards—Wil Wheaton—in a fantasy collectable card game tournament. Wolowitz cashes in on an old pact with Leonard to get Penny to set him up with a friend of hers. Sheldon looks forward to squaring off against the the one actor from the Star Trek universe he holds enmity towards—Wil Wheaton—in a fantasy collectable card game tournament. Wolowitz cashes in on an old pact with Leonard to get Penny to set him up with a friend of hers.

0.0 508 views

Season 3 Episode 4 The Pirate Solution

Facing a return to India, Raj needs a job desperately enough to consider working for Sheldon. Meanwhile, Howard becomes a third wheel to Leonard and Penny. Facing a return to India, Raj needs a job desperately enough to consider working for Sheldon. Meanwhile, Howard becomes a third wheel to Leonard and Penny.

0.0 475 views

Season 3 Episode 3 The Gothowitz Deviation

Howard takes Raj along to check out the Goth dating scene. Sheldon uses chocolate as part of a behavior modification experiment on Penny. Howard takes Raj along to check out the Goth dating scene. Sheldon uses chocolate as part of a behavior modification experiment on Penny.

0.0 527 views

Season 3 Episode 2 The Jiminy Conjecture

Sheldon and Howard wager comic books over a cricket's species. Meanwhile, a less-than-perfect romantic night agonizes Leonard and Penny. Sheldon and Howard wager comic books over a cricket's species. Meanwhile, a less-than-perfect romantic night agonizes Leonard and Penny.

0.0 517 views

Season 3 Episode 1 The Electric Can Opener Fluctuation

Discovering that Leonard, Raj, and Howard fudged the results of his Arctic research expedition, a disgraced Sheldon heads home to Texas. Discovering that Leonard, Raj, and Howard fudged the results of his Arctic research expedition, a disgraced Sheldon heads home to Texas.

0.0 832 views

Season 2 Episode 23 The Monopolar Expedition

The guys' prestigious offer to work over the summer at the North Pole—and Penny's resultant behavior—leaves Leonard unsure if he should go. The guys' prestigious offer to work over the summer at the North Pole—and Penny's resultant behavior—leaves Leonard unsure if he should go.

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Season 2 Episode 22 The Classified Materials Turbulence

Leonard is torn between being honest or self-serving when Stuart asks his advice for an upcoming second date with Penny. Wolowitz realizes there's a crucial error in a toilet he designed for the International Space Station. Leonard is torn between being honest or self-serving when Stuart asks his advice for an upcoming second date with Penny. Wolowitz realizes there's a crucial error in a toilet he designed for the International Space Station.

0.0 331 views

Season 2 Episode 21 The Vegas Renormalization

Leonard and Raj take Wolowitz to Las Vegas to help him get over his break-up with Leslie. Sheldon, home alone and looking forward to it, locks himself out and has only one other place to stay—Penny's. Leonard and Raj take Wolowitz to Las Vegas to help him get over his break-up with Leslie. Sheldon, home alone and looking forward to it, locks himself out and has only one other place to stay—Penny's.

0.0 294 views

Season 2 Episode 20 The Hofstadter Isotope

A fellow comic book enthusiast's hitting on Penny leads to Leonard, Raj, and Howard going to a bar's Ladies' Night. A fellow comic book enthusiast's hitting on Penny leads to Leonard, Raj, and Howard going to a bar's Ladies' Night.

0.0 331 views

Season 2 Episode 19 The Dead Hooker Juxtaposition

Penny feels threatened when another sexy woman moves into the apartment building and angered when she senses the guys are being taken advantage of. Penny feels threatened when another sexy woman moves into the apartment building and angered when she senses the guys are being taken advantage of.

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Season 2 Episode 18 The Work Song Nanocluster

Penny's business selling hair accessories out of her apartment gets out of hand when an over-caffeinated Sheldon takes charge. Penny's business selling hair accessories out of her apartment gets out of hand when an over-caffeinated Sheldon takes charge.

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Season 2 Episode 17 The Terminator Decoupling

The gang is thrilled when they see Terminator: The Sarah Connor Chronicles' Summer Glau is also aboard their train to San Francisco for a scientific symposium. Meanwhile, Sheldon frets over having forgotten a paper he wants to present to George Smoot. The gang is thrilled when they see Terminator: The Sarah Connor Chronicles' Summer Glau is also aboard their train to San Francisco for a scientific symposium. Meanwhile, Sheldon frets over having forgotten a paper he wants to present to George Smoot.

0.0 297 views

Season 2 Episode 16 The Cushion Saturation

Paintball leads to a squabble between Sheldon and Penny, as well as romance between Howard and Leslie. Paintball leads to a squabble between Sheldon and Penny, as well as romance between Howard and Leslie.

0.0 346 views

Season 2 Episode 15 The Maternal Capacitance

A visit from Leonard's mother ends up bringing him and Penny closer. A visit from Leonard's mother ends up bringing him and Penny closer.

0.0 258 views

Season 2 Episode 14 The Financial Permeability

When Sheldon loans money to Penny so she can pay her rent, it leads to Leonard coming face-to-face with her ex, Kurt. When Sheldon loans money to Penny so she can pay her rent, it leads to Leonard coming face-to-face with her ex, Kurt.

0.0 333 views

Season 2 Episode 13 The Friendship Algorithm

Looking to get friendly with Barry Kripke to gain access to a piece of high-tech lab equipment, Sheldon develops a flowchart process to make friends. Looking to get friendly with Barry Kripke to gain access to a piece of high-tech lab equipment, Sheldon develops a flowchart process to make friends.

0.0 269 views

Season 2 Episode 12 The Killer Robot Instability

Penny's criticism of Wolowitz's romantic life pushes him into depression and AWOL for a fighting robot battle the rest of guys are depending on him for. Penny's criticism of Wolowitz's romantic life pushes him into depression and AWOL for a fighting robot battle the rest of guys are depending on him for.

0.0 221 views

Season 2 Episode 11 The Bath Item Gift Hypothesis

Sheldon irks the gangs with his obession with proper Christmas gift protocol. Lenoard's crushed when Penny dates a colleague of his. Sheldon irks the gangs with his obession with proper Christmas gift protocol. Lenoard's crushed when Penny dates a colleague of his.

0.0 269 views

Season 2 Episode 10 The Vartabedian Conundrum

Leonard seeks Penny's counsel when his relationship with Stephanie takes off faster than he'd like. Sheldon's hypochondriac tendencies get the better of him. Leonard seeks Penny's counsel when his relationship with Stephanie takes off faster than he'd like. Sheldon's hypochondriac tendencies get the better of him.

0.0 304 views

Season 2 Episode 9 The White Asparagus Triangulation

Sheldon is overexuberant that Leonard finally has a girlfriend matching his high standards. Sheldon is overexuberant that Leonard finally has a girlfriend matching his high standards.

0.0 234 views

Season 2 Episode 8 The Lizard-Spock Expansion

A girl Wolowitz has a major crush on falls for Leonard. Sheldon tries to improve rock-paper-scissors. A girl Wolowitz has a major crush on falls for Leonard. Sheldon tries to improve rock-paper-scissors.

0.0 299 views

Season 2 Episode 7 The Panty Piñata Polarization

When Sheldon bans Penny from the apartment for numerous minor infractions, she decides to retaliate. Howard and Raj search for the America's Next Top Model house. When Sheldon bans Penny from the apartment for numerous minor infractions, she decides to retaliate. Howard and Raj search for the America's Next Top Model house.

0.0 264 views

Season 2 Episode 6 The Cooper-Nowitzki Theorem

Sheldon, and his friends, are mystified when a younger undergraduate student is attracted to him. Sheldon, and his friends, are mystified when a younger undergraduate student is attracted to him.

0.0 284 views

Season 2 Episode 5 The Euclid Alternative

An intervention is used to try to force Sheldon to overcome his fear of driving. An intervention is used to try to force Sheldon to overcome his fear of driving.

0.0 254 views

Season 2 Episode 4 The Griffin Equivalency

Full of confidence following being named one of People's "30 to Watch Under 30", Raj hits on Penny and becomes impossibly arrogant. Full of confidence following being named one of People's "30 to Watch Under 30", Raj hits on Penny and becomes impossibly arrogant.

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Season 2 Episode 3 The Barbarian Sublimation

Penny becomes addicted to an online game based on the world of Conan the Barbarian and persistantly pesters Sheldon for advice. Penny becomes addicted to an online game based on the world of Conan the Barbarian and persistantly pesters Sheldon for advice.

0.0 297 views

Season 2 Episode 2 The Codpiece Topology

Seeing Penny with another guy sends Leonard back to Leslie Winkle, much to Sheldon's dismay. Seeing Penny with another guy sends Leonard back to Leslie Winkle, much to Sheldon's dismay.

0.0 197 views

Season 2 Episode 1 The Bad Fish Paradigm

Penny opens up to a reluctant Sheldon after a less-than-stellar first date with Leonard, placing him in the uncomfortable position of having to keep a secret. Penny opens up to a reluctant Sheldon after a less-than-stellar first date with Leonard, placing him in the uncomfortable position of having to keep a secret.

0.0 289 views

Season 1 Episode 17 The Tangerine Factor

Penny's break-up spurs Leonard to summon the courage to ask her out, and each goes to Sheldon for advice on their upcoming date. Penny's break-up spurs Leonard to summon the courage to ask her out, and each goes to Sheldon for advice on their upcoming date.

0.0 256 views

Season 1 Episode 16 The Peanut Reaction

Penny wants to throw a surprise party for Leonard, but Sheldon's indulgence at an electronics store throws her off-track. Penny wants to throw a surprise party for Leonard, but Sheldon's indulgence at an electronics store throws her off-track.

0.0 269 views

Season 1 Episode 15 The Pork Chop Indeterminacy

The rest of the gang fall for Sheldon's twin sister, and Leonard's plan to win her heart is derailed when Sheldon declares he'll be the one to decide who can date her. The rest of the gang fall for Sheldon's twin sister, and Leonard's plan to win her heart is derailed when Sheldon declares he'll be the one to decide who can date her.

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Season 1 Episode 14 The Nerdvana Annihilation

When the delivery of a full-size prop of 1960's The Time Machine makes Penny miss work, she scolds Leonard about his sci-fi collectibles. He decides it's time to give up such childish pursuits. When the delivery of a full-size prop of 1960's The Time Machine makes Penny miss work, she scolds Leonard about his sci-fi collectibles. He decides it's time to give up such childish pursuits.

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Season 1 Episode 13 The Bat Jar Conjecture

Sheldon finds himself booted from the gang's Physics Bowl team and replaced with Leslie, so he forms his own team, hoping to prove he's superior. Sheldon finds himself booted from the gang's Physics Bowl team and replaced with Leslie, so he forms his own team, hoping to prove he's superior.

0.0 235 views

Season 1 Episode 12 The Jerusalem Duality

With Sheldon rattled and impossible to be around after meeting Dennis, a 15-year-old physicist who's smarter than he, the rest of the guys search for a way to eliminate the threat. With Sheldon rattled and impossible to be around after meeting Dennis, a 15-year-old physicist who's smarter than he, the rest of the guys search for a way to eliminate the threat.

0.0 254 views

Season 1 Episode 11 The Pancake Batter Anomaly

With his friends knowing how sour he acts when sick—and avoiding him as a result—Sheldon is nursed for by Penny, who hasn't a clue what she's in for. With his friends knowing how sour he acts when sick—and avoiding him as a result—Sheldon is nursed for by Penny, who hasn't a clue what she's in for.

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Season 1 Episode 10 The Loobenfeld Decay

Leonard and Sheldon each lie to avoid hearing Penny sing in a production of Rent. However, Sheldon's lie becomes a bit too complicated for its own good. Leonard and Sheldon each lie to avoid hearing Penny sing in a production of Rent. However, Sheldon's lie becomes a bit too complicated for its own good.

0.0 241 views

Season 1 Episode 9 The Cooper-Hofstadter Polarization

When they're invited to present at a physics conference, Sheldon's reluctance to share the credit leads to a tiff between him and Leonard, and Penny's intervention only exacerbates the situation. When they're invited to present at a physics conference, Sheldon's reluctance to share the credit leads to a tiff between him and Leonard, and Penny's intervention only exacerbates the situation.

0.0 250 views

Season 1 Episode 8 The Grasshopper Experiment

Raj's parents set him up on a blind date, and when he discovers he can talk to her, she shows interest in Sheldon. Raj's parents set him up on a blind date, and when he discovers he can talk to her, she shows interest in Sheldon.

0.0 287 views

Season 1 Episode 7 The Dumpling Paradox

With Wolowitz AWOL with one of her friends, Penny's recruited to fill in for him on the guys' Halo team. With Wolowitz AWOL with one of her friends, Penny's recruited to fill in for him on the guys' Halo team.

0.0 401 views

Season 1 Episode 6 The Middle Earth Paradigm

Penny hosts a Halloween party, putting Leonard, Sheldon, Wolowitz, and Koothrappali through a new test of their social skills. Penny hosts a Halloween party, putting Leonard, Sheldon, Wolowitz, and Koothrappali through a new test of their social skills.

0.0 319 views

Season 1 Episode 5 The Hamburger Postulate

Fearing he's wasting his time on Penny, Leonard ends up making a connection with Leslie. Meanwhile, Sheldon frets over a change to his hamburger routine. Fearing he's wasting his time on Penny, Leonard ends up making a connection with Leslie. Meanwhile, Sheldon frets over a change to his hamburger routine.

0.0 424 views

Season 1 Episode 4 The Luminous Fish Effect

Sheldon's getting fired forces him to explore what life has to offer outside physics, leaving Leonard to take drastic action to snap his friend out of his funk. Sheldon's getting fired forces him to explore what life has to offer outside physics, leaving Leonard to take drastic action to snap his friend out of his funk.

0.0 264 views

Season 1 Episode 3 The Fuzzy Boots Corollary

Leonard asks a woman out after he finds out that Penny is seeing someone. Leonard asks a woman out after he finds out that Penny is seeing someone.

0.0 272 views

Season 1 Episode 2 The Big Bran Hypothesis

Leonard volunteers to sign for a package in an attempt to make a good impression on Penny, but when he enlists Sheldon for help, his attempt at chivalry goes terribly awry. Leonard volunteers to sign for a package in an attempt to make a good impression on Penny, but when he enlists Sheldon for help, his attempt at chivalry goes terribly awry.

0.0 277 views

Season 1 Episode 1 Pilot

Brilliant physicist roommates Leonard and Sheldon meet their new neighbor Penny, who begins showing them that as much as they know about science, they know little about actual living. Brilliant physicist roommates Leonard and Sheldon meet their new neighbor Penny, who begins showing them that as much as they know about science, they know little about actual living.

0.0 414 views

Season Other Episode Other other

0.0 823 views