The Big Bang Theory
Cast & Crew
Upcoming TV Airings
The airings below are based on a generic national schedule. Times and dates can vary by TV provider.
Monday, March 18
The Roommate Transmogrification
Season 4 • Episode 24
Bernadette gets her Ph.D., inspiring the guys to tease Wolowitz about his lack of a doctorate.
Monday, March 18
The Skank Reflex Analysis
Season 5 • Episode 1
Penny worries that she has ruined her relationship with her friends.
Tuesday, March 19
The White Asparagus Triangulation
Season 2 • Episode 9
Sheldon is thrilled when Leonard starts dating a woman who meets Sheldon's stringent standards.
Tuesday, March 19
The Infestation Hypothesis
Season 5 • Episode 2
Amy is caught in the middle when Penny and Sheldon argue over a pre-owned chair.
Tuesday, March 19
The Pulled Groin Extrapolation
Season 5 • Episode 3
Bernadette, Howard and Mrs. Wolowitz spend the weekend together.
Tuesday, March 19
The Wiggly Finger Catalyst
Season 5 • Episode 4
Raj wants a girlfriend, so Penny introduces him to a woman he can communicate with.
Tuesday, March 19
The Russian Rocket Reaction
Season 5 • Episode 5
Wil Wheaton invites Leonard and Sheldon to a party at his house; Howard receives an opportunity.
Tuesday, March 19
The Rhinitis Revelation
Season 5 • Episode 6
Sheldon finds himself competing with the gang for his mother's attention when she visits.
Tuesday, March 19
The Good Guy Fluctuation
Season 5 • Episode 7
An attractive comic book artist tests Leonard and Priya's relationship.
Tuesday, March 19
The Isolation Permutation
Season 5 • Episode 8
Amy is devastated when Penny and Bernadette shop for wedding dresses without her.
Tuesday, March 19
The Deception Verification
Season 7 • Episode 2
Leonard and Sheldon's friendship is tested; Wolowitz's masculinity is threatened.
Tuesday, March 19
The Flaming Spittoon Acquisition
Season 5 • Episode 10
Sheldon is jealous when Stuart, from the comic book store, asks Amy out on a date.
Tuesday, March 19
The Speckerman Recurrence
Season 5 • Episode 11
Leonard must face the bully who targeted him in high school; Penny confronts her past actions.
Tuesday, March 19
The Shiny Trinket Maneuver
Season 5 • Episode 12
Amy is upset with Sheldon when he isn't impressed with her recent accomplishment.
Tuesday, March 19
The Recombination Hypothesis
Season 5 • Episode 13
Everything could change when Leonard spontaneously invites Penny to a romantic dinner.
Tuesday, March 19
The Beta Test Initiation
Season 5 • Episode 14
Penny and Leonard experiment with their new relationship; Raj forms an unusual bond.
Tuesday, March 19
The Friendship Contraction
Season 5 • Episode 15
Leonard starts to reconsider his friendship with Sheldon; Wolowitz tries to choose a nickname.
Wednesday, March 20
The Vartabedian Conundrum
Season 2 • Episode 10
Leonard asks Penny for advice when his new relationship starts moving too fast.
Wednesday, March 20
The Vacation Solution
Season 5 • Episode 16
Sheldon goes to work with Amy in her lab when the university forces him to take a vacation.
Wednesday, March 20
The Rothman Disintegration
Season 5 • Episode 17
Sheldon and Kripke compete for a corner office; Penny receives a gift from Amy.
Wednesday, March 20
The Werewolf Transformation
Season 5 • Episode 18
Sheldon's routine is turned upside down when his barber gets sick.
Wednesday, March 20
The Weekend Vortex
Season 5 • Episode 19
Sheldon decides to play video games with the guys instead of attending a party with Amy.
Wednesday, March 20
The Transporter Malfunction
Season 5 • Episode 20
After receiving new "Star Trek" collectibles, Sheldon finds himself haunted by Mr. Spock.
Wednesday, March 20
The Hawking Excitation
Season 5 • Episode 21
When Wolowitz works with Stephen Hawking, Sheldon is determined to meet the famous scientist.
Wednesday, March 20
The Stag Convergence
Season 5 • Episode 22
Knowledge of Howard's sexual history makes Bernadette reconsider their future together.
Wednesday, March 20
The Raiders Minimization
Season 7 • Episode 4
Sheldon wants revenge after Amy ruins one of his favorite films.
Thursday, March 21
The Killer Robot Instability
Season 2 • Episode 12
The guys lose their most important teammate in an upcoming fighting-robot competition.
Thursday, March 21
The Workplace Proximity
Season 7 • Episode 5
Sheldon and Amy's relationship is tested when she takes a job at his university.
Friday, March 22
The Friendship Algorithm
Season 2 • Episode 13
Sheldon develops a scientific procedure for making friends; Kripke controls a new supercomputer.
Friday, March 22
The Romance Resonance
Season 7 • Episode 6
Sheldon's latest scientific breakthrough leaves him feeling like a fraud.
Saturday, March 23
The Financial Permeability
Season 2 • Episode 14
Sheldon's solution to Penny's financial difficulty leads to a confrontation.
Saturday, March 23
The Countdown Reflection
Season 5 • Episode 24
The gang tries to help Wolowitz and Bernadette get married before the space launch.
Saturday, March 23
The Date Night Variable
Season 6 • Episode 1
Raj faces his loneliness; Wolowitz gets drawn into a fight between Bernadette and his mom.
Saturday, March 23
The Decoupling Fluctuation
Season 6 • Episode 2
Sheldon tries to intervene when he learns that Penny is thinking about breaking up with Leonard.
Saturday, March 23
The Higgs Boson Observation
Season 6 • Episode 3
Amy feels threatened by Sheldon's new assistant; space starts to wear on Wolowitz.
Saturday, March 23
The Re-Entry Minimization
Season 6 • Episode 4
Wolowitz's return from space isn't all he expected; game night becomes a gender war.
Saturday, March 23
The Holographic Excitation
Season 6 • Episode 5
The gang heads to Stuart's comic book store to celebrate Halloween.
Saturday, March 23
The Extract Obliteration
Season 6 • Episode 6
A game threatens Sheldon's relationship with Stephen Hawking; Penny signs up for a college class.
Saturday, March 23
The Closure Alternative
Season 6 • Episode 21
Amy tries to help Sheldon get over his need for closure; Raj discovers a secret about Lucy.
Sunday, March 24
The Benefactor Factor
Season 4 • Episode 15
A wealthy donor makes Leonard question what he is willing to do for science.
Sunday, March 24
The Habitation Configuration
Season 6 • Episode 7
Sheldon is caught in the middle of Amy and Wil Wheaton's argument.
Sunday, March 24
The 43 Peculiarity
Season 6 • Episode 8
Raj and Howard try to figure out why Sheldon disappears at 2:45 every afternoon.
Sunday, March 24
The Parking Spot Escalation
Season 6 • Episode 9
Sheldon and Wolowitz's fight over a parking spot at the university impacts the whole gang.
Sunday, March 24
The Fish Guts Displacement
Season 6 • Episode 10
When Amy gets sick, Sheldon tries to nurse her back to health.
Sunday, March 24
The Santa Simulation
Season 6 • Episode 11
During a game, Sheldon revisits Christmas memories; finding a date for Koothrappali.
Sunday, March 24
The Egg Salad Equivalency
Season 6 • Episode 12
Sheldon is accused of sexual harassment and winds up getting Raj, Leonard and Wolowitz in trouble.
Monday, March 25
The Cohabitation Formulation
Season 4 • Episode 16
Wolowitz considers taking things with Bernadette to the next level.
Monday, March 25
The Bakersfield Expedition
Season 6 • Episode 13
The guys don costumes and go on a road trip to a comic book convention.
Monday, March 25
The Cooper/Kripke Inversion
Season 6 • Episode 14
Sheldon faces a crisis of confidence when he is forced to work with his nemesis, Barry Kripke.
Monday, March 25
The Spoiler Alert Segmentation
Season 6 • Episode 15
A fight between Sheldon and Leonard impacts Amy and Penny's living arrangements.
Monday, March 25
The Tangible Affection Proof
Season 6 • Episode 16
The guys search for Valentine's Day gifts; Stuart and Raj host a "lonely people" party.
Monday, March 25
The Monster Isolation
Season 6 • Episode 17
Koothrappali decides to never leave his apartment; Penny's acting skills impress Sheldon.
Monday, March 25
The Contractual Obligation Implementation
Season 6 • Episode 18
Leonard, Sheldon and Wolowitz talk to junior high girls about science-related careers.
Monday, March 25
The Closet Reconfiguration
Season 6 • Episode 19
Howard considers whether or not he should open a letter from his father.
Monday, March 25
The Proton Displacement
Season 7 • Episode 7
When Professor Proton asks Leonard for help with an experiment, Sheldon befriends Proton's rival.
Monday, March 25
The Closure Alternative
Season 6 • Episode 21
Amy tries to help Sheldon get over his need for closure; Raj discovers a secret about Lucy.
Monday, March 25
The Proton Resurgence
Season 6 • Episode 22
Leonard and Sheldon hire the host of their favorite childhood TV show to perform.
Tuesday, March 26
The Maternal Capacitance
Season 2 • Episode 15
Leonard and Penny are drawn together after a disastrous visit from Leonard's mother.
Tuesday, March 26
The Love Spell Potential
Season 6 • Episode 23
Amy and Sheldon's relationship takes a surprising turn during a game of "Dungeons & Dragons."
Tuesday, March 26
The Bon Voyage Reaction
Season 6 • Episode 24
When Leonard receives an opportunity to work overseas, Penny and Sheldon are thrown for a loop.
Tuesday, March 26
The Hofstadter Insufficiency
Season 7 • Episode 1
Sheldon and Penny share secrets while Leonard is away; Wolowitz helps Raj get over his ex.
Tuesday, March 26
The Deception Verification
Season 7 • Episode 2
Leonard and Sheldon's friendship is tested; Wolowitz's masculinity is threatened.
Tuesday, March 26
The Scavenger Vortex
Season 7 • Episode 3
Raj designs a scavenger hunt that brings out the best -- and the worst -- in the whole gang.
Tuesday, March 26
The Raiders Minimization
Season 7 • Episode 4
Sheldon wants revenge after Amy ruins one of his favorite films.
Tuesday, March 26
The Workplace Proximity
Season 7 • Episode 5
Sheldon and Amy's relationship is tested when she takes a job at his university.
Tuesday, March 26
The Itchy Brain Simulation
Season 7 • Episode 8
When a mistake comes to light, Sheldon punishes Leonard; Penny decides to confront Raj's ex.
Tuesday, March 26
The Proton Displacement
Season 7 • Episode 7
When Professor Proton asks Leonard for help with an experiment, Sheldon befriends Proton's rival.
Tuesday, March 26
The Itchy Brain Simulation
Season 7 • Episode 8
When a mistake comes to light, Sheldon punishes Leonard; Penny decides to confront Raj's ex.
Tuesday, March 26
The Thanksgiving Decoupling
Season 7 • Episode 9
When the gang decides to spend Thanksgiving at Mrs. Wolowitz's house, Sheldon protests.
Tuesday, March 26
The Discovery Dissipation
Season 7 • Episode 10
Amy and Leonard try to help Sheldon deal with his shame; Raj stays with Bernadette and Howard.
Tuesday, March 26
The Cooper Extraction
Season 7 • Episode 11
While Sheldon is in Texas, the rest of the gang realize how much he has changed their lives.
Tuesday, March 26
The Hesitation Ramification
Season 7 • Episode 12
Penny asks Leonard a bold question about their relationship; Sheldon wants to learn how to be funny.
Wednesday, March 27
The Cushion Saturation
Season 2 • Episode 16
A paintball game leads to a fight between Sheldon and Penny, and romance for Leslie and Wolowitz.
Wednesday, March 27
The Occupation Recalibration
Season 7 • Episode 13
Sheldon must learn how to relax when he is forced to take a vacation.
Wednesday, March 27
The Convention Conundrum
Season 7 • Episode 14
Unable to get Comic-Con tickets, Sheldon tries to hold his own convention.
Wednesday, March 27
The Locomotive Manipulation
Season 7 • Episode 15
Sheldon and Amy go on a trip to wine country with Howard and Bernadette.
Wednesday, March 27
The Table Polarization
Season 7 • Episode 16
When Leonard buys a dining room table, Sheldon re-evaluates the changes in his life.
Wednesday, March 27
The Friendship Turbulence
Season 7 • Episode 17
Bernadette tries to negotiate peace between Sheldon and Wolowitz.
Wednesday, March 27
The Mommy Observation
Season 7 • Episode 18
Sheldon is faced with a new reality when he visits his mom in Houston.
Wednesday, March 27
The Indecision Amalgamation
Season 7 • Episode 19
Raj struggles with guilt when he dates two women at once; Penny has a chance to be in a movie.
Wednesday, March 27
The Relationship Diremption
Season 7 • Episode 20
Sheldon has a personal crisis when he decides string theory is a waste of his time.
Thursday, March 28
The Discovery Dissipation
Season 7 • Episode 10
Amy and Leonard try to help Sheldon deal with his shame; Raj stays with Bernadette and Howard.
Thursday, March 28
The Anything Can Happen Recurrence
Season 7 • Episode 21
Sheldon gives spontaneity a try; Raj asks Howard for help with preparation for a date with Emily.
Thursday, March 28
The Proton Transmogrification
Season 7 • Episode 22
Professor Proton helps Sheldon deal with grief; Leonard gets into a competition with Penny.
Thursday, March 28
The Gorilla Dissolution
Season 7 • Episode 23
A bad day compels Penny to re-evaluate her choices -- including Leonard.
Thursday, March 28
The Status Quo Combustion
Season 7 • Episode 24
Faced with an uncertain future, Sheldon considers a major change.
Thursday, March 28
The Locomotion Interruption
Season 8 • Episode 1
Leonard and Amy make an unexpected trip to Arizona to fetch Sheldon; Penny goes for an interview.
Thursday, March 28
The Hesitation Ramification
Season 7 • Episode 12
Penny asks Leonard a bold question about their relationship; Sheldon wants to learn how to be funny.
Friday, March 29
The Work Song Nanocluster
Season 2 • Episode 18
Penny's home business turns into a complete nightmare when Sheldon takes over.
Friday, March 29
The Junior Professor Solution
Season 8 • Episode 2
Amy takes advantage of the tension between Penny and Bernadette.
Friday, March 29
The First Pitch Insufficiency
Season 8 • Episode 3
Wolowitz feels nervous when he is asked to throw the first pitch at a Los Angeles Angels game.
Friday, March 29
The Hook-Up Reverberation
Season 8 • Episode 4
Raj's honesty comes back to haunt him when his new girlfriend is unfriendly to Penny.
Friday, March 29
The Focus Attenuation
Season 8 • Episode 5
During their weekend in Las Vegas, Bernadette and Amy accuse Penny of being a buzz kill.
Friday, March 29
The Expedition Approximation
Season 8 • Episode 6
Raj and Sheldon try to simulate a dark-matter research expedition; Penny and Leonard have a fight.
Friday, March 29
The Occupation Recalibration
Season 7 • Episode 13
Sheldon must learn how to relax when he is forced to take a vacation.
Saturday, March 30
The Dead Hooker Juxtaposition
Season 2 • Episode 19
Penny has a rivalry with a new neighbor who threatens her position as queen bee of the building.
Saturday, March 30
The Misinterpretation Agitation
Season 8 • Episode 7
The guys try to help when Penny is faced with an awkward dilemma at work.
Saturday, March 30
The Prom Equivalency
Season 8 • Episode 8
Sheldon feels pressured to participate in traditions when the gang re-creates a high-school prom.
Saturday, March 30
The Septum Deviation
Season 8 • Episode 9
Leonard has minor surgery on his nose, causing Sheldon to overreact.
Saturday, March 30
The Champagne Reflection
Season 8 • Episode 10
Howard, Leonard and Raj look through their dead professor's research.
Saturday, March 30
The Clean Room Infiltration
Season 8 • Episode 11
Leonard and Wolowitz clash over a work emergency; Sheldon resents having to celebrate the holidays.
Sunday, March 31
The Toast Derivation
Season 4 • Episode 17
Sheldon is upset when he realizes Leonard is the center of their group of friends.
Sunday, March 31
The Prestidigitation Approximation
Season 4 • Episode 18
Leonard must choose between Penny and his new girlfriend, Priya.
Sunday, March 31
The Space Probe Disintegration
Season 8 • Episode 12
The guys agree to do something the girls like; Leonard and Sheldon butt heads.
Sunday, March 31
The Anxiety Optimization
Season 8 • Episode 13
Sheldon asks his friends to challenge him in hope of achieving a scientific breakthrough.
Sunday, March 31
The Troll Manifestation
Season 8 • Episode 14
Sheldon and Leonard must defend themselves from an online bully's criticism after writing a paper.
Sunday, March 31
The Comic Book Store Regeneration
Season 8 • Episode 15
The gang waits for the reopening of the comic book store; Wolowitz gets some shocking news.
Sunday, March 31
The Intimacy Acceleration
Season 8 • Episode 16
Penny and Sheldon design an experiment -- as a joke -- to make participants fall in love.
Sunday, March 31
The Colonization Application
Season 8 • Episode 17
Amy finds out that Sheldon applied for a one-way mission to colonize Mars.
Monday, April 1
The Leftover Thermalization
Season 8 • Episode 18
A magazine article only credits Sheldon in an article about a paper he co-wrote with Leonard.
Monday, April 1
The Skywalker Incursion
Season 8 • Episode 19
While on their way to UC Berkeley, Sheldon and Leonard take a detour in hope of meeting an idol.
Monday, April 1
The Fortification Implementation
Season 8 • Episode 20
Sheldon and Amy build a blanket fort; Wolowitz meets a half-brother he didn't know he had.
Monday, April 1
The Communication Deterioration
Season 8 • Episode 21
The guys fight over a message that could be used for alien contact.
Monday, April 1
The Graduation Transmission
Season 8 • Episode 22
Wolowitz questions his engineering skills; a canceled flight puts Leonard's plans in jeopardy.
Monday, April 1
The Maternal Combustion
Season 8 • Episode 23
When Sheldon's and Leonard's mothers finally meet, personalities collide.
Monday, April 1
The Commitment Determination
Season 8 • Episode 24
While facing relationship changes, Sheldon pushes Penny and Leonard to choose a wedding date.
Monday, April 1
The Matrimonial Momentum
Season 9 • Episode 1
Penny must decide if she can get past Leonard's bad behavior.
Monday, April 1
The Convention Conundrum
Season 7 • Episode 14
Unable to get Comic-Con tickets, Sheldon tries to hold his own convention.
Monday, April 1
The Bachelor Party Corrosion
Season 9 • Episode 3
A flat tire during Leonard's bachelor party weekend in Mexico tests the guys' skills.
Monday, April 1
The 2003 Approximation
Season 9 • Episode 4
An impending change inspires Sheldon to revert to 2003, before he met Penny and Leonard.
Tuesday, April 2
The Hofstadter Isotope
Season 2 • Episode 20
Wolowitz and Leonard decide to check out a local bar on Ladies' Night.
Tuesday, April 2
The Perspiration Implementation
Season 9 • Episode 5
Barry Kripke expresses interest in Amy while leading a fencing lesson for the guys.
Tuesday, April 2
The Helium Insufficiency
Season 9 • Episode 6
Leonard and Sheldon try to secure the helium they need during a nation-wide shortage.
Tuesday, April 2
The Spock Resonance
Season 9 • Episode 7
Sheldon struggles to keep his emotions in check when he is interviewed for a documentary.
Tuesday, April 2
The Mystery Date Observation
Season 9 • Episode 8
Sheldon, Wolowitz and Koothrappali post an ad online to find a new girlfriend for Sheldon.
Tuesday, April 2
The Locomotive Manipulation
Season 7 • Episode 15
Sheldon and Amy go on a trip to wine country with Howard and Bernadette.
Wednesday, April 3
The Vegas Renormalization
Season 2 • Episode 21
Koothrappali and Leonard take Wolowitz to Las Vegas; Sheldon gets locked out of his apartment.
Wednesday, April 3
The Platonic Permutation
Season 9 • Episode 9
Amy and Sheldon spend Thanksgiving at the aquarium -- as friends.
Wednesday, April 3
The Earworm Reverberation
Season 9 • Episode 10
Sheldon has a song stuck in his head; despite their awkward date, Amy asks Dave over for dinner.
Wednesday, April 3
The Opening Night Excitation
Season 9 • Episode 11
After dating for more than five years, Amy and Sheldon spend the night together for the first time.
Wednesday, April 3
The Sales Call Sublimination
Season 9 • Episode 12
Leonard meets with a psychiatrist; Wolowitz and Bernadette struggle when Stuart moves out.
Wednesday, April 3
The Empathy Optimization
Season 9 • Episode 13
Leonard, Penny and the gang attempt to treat themselves to a Sheldon-free weekend.
Wednesday, April 3
The Meemaw Materialization
Season 9 • Episode 14
Sheldon's excitement about his Meemaw's visit fades when she butts heads with Amy.
Wednesday, April 3
The Valentino Submergence
Season 9 • Episode 15
Amy and Sheldon host a Valentine's Day edition of Fun With Flags; Raj is torn between two women.
Wednesday, April 3
The Table Polarization
Season 7 • Episode 16
When Leonard buys a dining room table, Sheldon re-evaluates the changes in his life.
Thursday, April 4
The Classified Materials Turbulence
Season 2 • Episode 22
Penny makes a surprising revelation about Leonard while on her date with Stuart.
Thursday, April 4
The Celebration Experimentation
Season 9 • Episode 17
For the first time in nine years, the gang celebrates Sheldon's birthday.
Thursday, April 4
The Application Deterioration
Season 9 • Episode 18
The guys file for a patent on their invention; the girls give dating advice to Koothrappali.
Thursday, April 4
The Solder Excursion Diversion
Season 9 • Episode 19
Sheldon makes a revelation when Amy buys him a new laptop; Leonard and Wolowitz lie to their wives.
Thursday, April 4
The Big Bear Precipitation
Season 9 • Episode 20
Sheldon shares a secret about Leonard when they go on a weekend trip with Penny and Amy.
Thursday, April 4
The Viewing Party Combustion
Season 9 • Episode 21
The gang must choose sides when an argument between Sheldon and Leonard turns into a heated debate.
Thursday, April 4
The Fermentation Bifurcation
Season 9 • Episode 22
The gang runs into Penny's ex while out at a wine bar; Bernadette spends an evening with Sheldon.
Thursday, April 4
The Line Substitution Solution
Season 9 • Episode 23
Sheldon wants to go to a movie screening, so he pays Stuart to spend the day with Amy.
Thursday, April 4
The Friendship Turbulence
Season 7 • Episode 17
Bernadette tries to negotiate peace between Sheldon and Wolowitz.
Thursday, April 4
The Conjugal Conjecture
Season 10 • Episode 1
The group deals with the aftermath of Sheldon's mother and Leonard's father's evening together.
Thursday, April 4
The Military Miniaturization
Season 10 • Episode 2
Wolowitz has a meeting with Colonel Williams, a representative from the Air Force.
Thursday, April 4
The Dependence Transcendence
Season 10 • Episode 3
Sheldon tries an energy drink as the gang races to finish its government project on time.
Thursday, April 4
The Cohabitation Experimentation
Season 10 • Episode 4
After her apartment floods, Amy suggests that she and Sheldon move in together.
Friday, April 5
The Monopolar Expedition
Season 2 • Episode 23
Leonard and Penny re-evaluate their feelings for each other when he prepares for a three-month trip.
Friday, April 5
The Hot Tub Contamination
Season 10 • Episode 5
Things do not run smoothly when Amy moves in with Sheldon, and Leonard and Penny have to intervene.
Friday, April 5
The Fetal Kick Catalyst
Season 10 • Episode 6
At a Comic Con event, Penny learns there are fans of her performance in "Serial Ape-ist."
Friday, April 5
The Veracity Elasticity
Season 10 • Episode 7
Amy lies about repairs being made to her apartment so she can continue living with Sheldon.
Friday, April 5
The Brain Bowl Incubation
Season 10 • Episode 8
After a successful gene experiment, Sheldon is determined to convince Amy they should procreate.
Friday, April 5
The Geology Elevation
Season 10 • Episode 9
Sheldon gets jealous when a co-worker wins an award; Wolowitz finds an old invention.
Friday, April 5
The Property Division Collision
Season 10 • Episode 10
Sheldon and Leonard divvy up their shared belongings.
Friday, April 5
The Birthday Synchronicity
Season 10 • Episode 11
Bernadette and Howard welcome their baby; Amy celebrates her birthday with Sheldon.