The BEST episodes written by Bill Prady
#1 - The Stockholm Syndrome
The Big Bang Theory - Season 12 - Episode 24
Bernadette and Wolowitz leave their kids for the first time; Penny and Leonard try to keep a secret; Sheldon and Amy stick together; and Koothrappali makes a new friend, as the gang travels together into an uncharted future.
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#2 - The Change Constant
The Big Bang Theory - Season 12 - Episode 23
Sheldon and Amy await big news.
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#3 - The Good Guy Fluctuation
The Big Bang Theory - Season 5 - Episode 7
A cute comic book artist puts Leonard and Priya’s relationship to the test, while Sheldon tries to scare the guys for Halloween.
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#4 - The Roommate Transmogrification
The Big Bang Theory - Season 4 - Episode 24
When Bernadette receives her PhD, Wolowitz feels emasculated. Raj and Leonard swap apartments and Penny does something she regrets.
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#5 - The Egg Salad Equivalency
The Big Bang Theory - Season 6 - Episode 12
When Sheldon is accused of sexual harassment, he ends up getting Raj, Leonard and Wolowitz in trouble too.
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#6 - The Herb Garden Germination
The Big Bang Theory - Season 4 - Episode 20
Sheldon and Amy decide to start several rumors about the others as a test. Meanwhile, Howard takes his relationship with Bernadette to an even higher level.
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#7 - The Justice League Recombination
The Big Bang Theory - Season 4 - Episode 11
The guys find a "super" use for Penny's new boyfriend, Zack, when they enter a costume contest as the Justice League.
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#8 - The Boyfriend Complexity
The Big Bang Theory - Season 4 - Episode 9
Penny asks Leonard to lie to her father, while Howard, Raj and Bernadette pull an all-nighter at a telescope.
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#9 - The Hawking Excitation
The Big Bang Theory - Season 5 - Episode 21
When Wolowitz gets to work with Stephen Hawking, Sheldon is willing to do anything to meet his hero.
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#10 - The Beta Test Initiation
The Big Bang Theory - Season 5 - Episode 14
Leonard and Penny deal with the idea of starting a relationship again and Raj finally finds a "woman" he can talk to without being drunk. Meanwhile, Sheldon decides to start a YouTube series entitled "Sheldon Cooper presents Fun with Flags" with the help of Amy.
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#11 - The Launch Acceleration
The Big Bang Theory - Season 5 - Episode 23
When NASA moves up Howard's mission, he must face his fears and Bernadette's dad, thus putting the wedding plans in jeopardy. Meanwhile, Leonard says something surprising to Penny in the bedroom.
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#12 - The Werewolf Transformation
The Big Bang Theory - Season 5 - Episode 18
Sheldon becomes agitated when his regular barber is out sick. Astronaut training causes Howard to reconsider wanting to go into space. Penny beats Leonard in chess, the first time she plays.
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#13 - The Zarnecki Incursion
The Big Bang Theory - Season 4 - Episode 19
The guys go all out to help Sheldon find the person responsible for hacking his online gaming account, while the girls' hatred for Priya increases.
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#14 - The Classified Materials Turbulence
The Big Bang Theory - Season 2 - Episode 22
Penny's second date with Stuart sees her making a comment that gives Leonard new hope for a relationship with her. Wolowitz realizes there's a crucial error in a NASA project he's working on.
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#15 - The Cohabitation Formulation
The Big Bang Theory - Season 4 - Episode 16
As Wolowitz contemplates taking things with Bernadette to the next level, Leonard rekindles his relationship with Raj's sister Priya.
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#16 - The Irish Pub Formulation
The Big Bang Theory - Season 4 - Episode 6
Leonard keeps a romantic affair a secret from Sheldon, Howard and Raj.
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#17 - Pilot
The Big Bang Theory - Season 1 - Episode 1
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.
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#18 - The Recombination Hypothesis
The Big Bang Theory - Season 5 - Episode 13
Leonard, who broke up with Priya, asks Penny out to a spur-of the-moment romantic dinner for two, and the duo contemplates resuming their relationship.
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#19 - The Flaming Spittoon Acquisition
The Big Bang Theory - Season 5 - Episode 10
Sheldon considers taking his relationship with Amy to the next level when Stuart from the comic book store asks her out on a date.
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#20 - The Dating Game
Dharma & Greg - Season 2 - Episode 24
When Dharma and Greg decide to go on a first date to get reacquainted the old-fashioned way, their courtship doesn't go as well as planned: a furious Dharma moves back in with her parents and refuses to speak to a penitent Greg.
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#21 - Mr. Montgomery Goes to Washington
Dharma & Greg - Season 1 - Episode 8
After Greg wins a major court case, he is urged to run for Congress. It's an idea that moves Dharma to consult Greg's mother for grooming advice, as a potential political wife. After worrying about Dharma fitting in with the political crowd, Greg embarrasses himself during his first public appearance by emerging from the washroom with his fly undone. But when Dharma tries to boost his confidence with a little back-seat lovin', it becomes front-page news. (""We know he's not a Democrat because he's having sex with his wife, and we know he's not a Republican because he's having sex."") Greg is thrown into a black depression until he realizes that his popularity has soared; then his opponent makes a decisive sexual confession of his own.
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#22 - The Gorilla Experiment
The Big Bang Theory - Season 3 - Episode 10
Penny gets help from Sheldon in order to understand what Leonard's work is, while Wolowitz develops a jealousy when Leonard starts hanging out with his new girlfriend.
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#23 - The Precious Fragmentation
The Big Bang Theory - Season 3 - Episode 17
When the guys find a ring from "The Lord of the Rings" at a garage sale, it threatens to tear them apart.
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#24 - The Maternal Congruence
The Big Bang Theory - Season 3 - Episode 11
A Christmas visit from his mother has Leonard discovering she's kept a lot of news from him that she shares with Sheldon and worrying if she'll approve of his romance with Penny.
Watch Now:Apple TV
#25 - The Pork Chop Indeterminacy
The Big Bang Theory - Season 1 - Episode 15
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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#26 - The Wiggly Finger Catalyst
The Big Bang Theory - Season 5 - Episode 4
Penny plays Matchmaker for Raj, which results in him finding a girl he is comfortable talking to, but the gang suspects that she may be taking advantage of Raj.
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#27 - The Wildebeest Implementation
The Big Bang Theory - Season 4 - Episode 22
Raj attempts to cure his social anxiety disorder while Penny uses Bernadette to spy on Leonard and his girlfriend.
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#28 - The Pulled Groin Extrapolation
The Big Bang Theory - Season 5 - Episode 3
Leonard and Amy get to know each other better when Amy invites Leonard to a wedding. Meanwhile, Howard and Bernadette spend the weekend with Mrs. Wolowitz.
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#29 - The Excelsior Acquisition
The Big Bang Theory - Season 3 - Episode 16
Sheldon winds up in traffic court when he gets a ticket because of Penny.
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#30 - The Apology Insufficiency
The Big Bang Theory - Season 4 - Episode 7
Sheldon's answers during an FBI interview put Wolowitz's security clearance in jeopardy.
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#31 - The Vartabedian Conundrum
The Big Bang Theory - Season 2 - Episode 10
Leonard asks Penny for advice when his new relationship starts moving too fast.
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#32 - Valet Girl
Dharma & Greg - Season 2 - Episode 7
Greg is forced to make a very embarrassing public admission when he sees the first girl he claims to have slept with and her jealous husband makes some serious threats. Meanwhile, Dharma and Greg attend the wedding of Kitty's housekeeper and offer to park cars as a wedding gift.
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#33 - Oldies but Young 'Uns
Married... with Children - Season 5 - Episode 17
Al goes crazy trying to remember the name of a song he heard on the radio.
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#34 - The Ornithophobia Diffusion
The Big Bang Theory - Season 5 - Episode 9
Leonard and Penny try hanging out as friends on a 'non-date,' but end up purposely ruining each others chances with perspective dates. Meanwhile, Sheldon enlists the help of Bernadette and Amy to overcome his fear of birds.
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#35 - The Friendship Contraction
The Big Bang Theory - Season 5 - Episode 15
Sheldon's selfish demands force Leonard to reconsider their friendship. Meanwhile, Wolowitz tries to pick his astronaut nickname.
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#36 - The Skank Reflex Analysis
The Big Bang Theory - Season 5 - Episode 1
Penny is worried with how damaged her friendship with the guys will be in the aftermath of her sleeping with Raj, while Sheldon becomes the leader of the paintball team.
Watch Now:Apple TV
#37 - The Shiny Trinket Maneuver
The Big Bang Theory - Season 5 - Episode 12
Sheldon gets in trouble with Amy when he isn't impressed by her recent accomplishment, and Howard must come to grips with Bernadette's dislike of children.
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#38 - The Bat Jar Conjecture
The Big Bang Theory - Season 1 - Episode 13
Sheldon finds himself booted from the gang's Physics Bowl team and replaced by Leslie Winkle, so he forms his own team, hoping to prove he's superior.
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#39 - The Vacation Solution
The Big Bang Theory - Season 5 - Episode 16
When Sheldon is forced to take his vacation, he goes to work with Amy in her neurobiology lab. Also, Bernadette wants Howard to sign a pre-nup.
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#40 - The Cushion Saturation
The Big Bang Theory - Season 2 - Episode 16
A paintball game leads to a fight between Sheldon and Penny, and romance for Leslie and Wolowitz.
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#41 - The Spaghetti Catalyst
The Big Bang Theory - Season 3 - Episode 20
When Leonard and Penny aren't speaking, Sheldon goes to extremes to keep them both happy.
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#42 - The Rhinitis Revelation
The Big Bang Theory - Season 5 - Episode 6
Sheldon's mother, Mary Cooper, comes to visit, but Sheldon is annoyed that she also spends time with the rest of the gang, instead of catering to his every demand.
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#43 - Caroline and the Critics
Caroline in the City - Season 2 - Episode 21
When Caroline learns that an obscure upstate newspaper has dropped her syndicated strip, she drives up with a reluctant Richard to find out why. Naturally Richard's car breaks down, and the two wind up playing marriage counselor to the only local mechanic and his on-the-point-of-leaving wife. Meanwhile, Annie recognizes an obnoxious diner at Remo's as the theater critic who gave her the worst review of her career, and hatches an elaborate revenge plot that involves Del, Charlie, and a cab driver/actor with his own ax to grind.
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#44 - The Hot Troll Deviation
The Big Bang Theory - Season 4 - Episode 4
An embarrassing secret of Wolowitz's comes to light, while Sheldon and Raj have a small war at work.
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#45 - The Loobenfeld Decay
The Big Bang Theory - Season 1 - Episode 10
Leonard and Sheldon each lie to avoid seeing Penny's concert, but Sheldon's lie is a bit too complicated for his own good.
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#46 - The Wheaton Recurrence
The Big Bang Theory - Season 3 - Episode 19
A fight between Leonard and Penny threatens their relationship, while Sheldon battles Wil Wheaton in bowling.
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#47 - The Codpiece Topology
The Big Bang Theory - Season 2 - Episode 2
A jealous Leonard reacts to Penny's new guy by rebounding with Leslie Winkle.
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#48 - He Ain't Heavy, He's My Father
Dharma & Greg - Season 1 - Episode 9
When Greg needs an upgraded security clearance to work on a top-secret case, Dharma and the families are subjected to a background check, which reveals some very interesting information about Larry and Edward. Dharma discovers to her horror that her proud anti-establishment rebel father in not in fact wanted by the FBI as he's always bragged, and embroils Greg and Pete in a scheme to plant a phony file for Larry to steal. Meanwhile, Greg is shaken to discover that Edward never in fact divorced his first wife; and Kitty's reaction to the news is not what anyone would expect.
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#49 - Dharma Does Dallas
Dharma & Greg - Season 4 - Episode 15
Dharma gets to know Greg's dysfunctional cousins and in-laws just in time to keep Edward from making a huge mistake in choosing his successor as head of the firm.
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#50 - The Bus Pants Utilization
The Big Bang Theory - Season 4 - Episode 12
Leonard's idea for a smartphone app derails his friendship with Sheldon.
Watch Now:Apple TV