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The Big Bang Theory

The Big Bang Theory is a comedy about two physicists Leonard Hofstadter and Sheldon Cooper who live and work together in Pasadena, California. They live a comfortable geeky existence until attractive wannabe actress Penny moves in across the hall. CBS 2007-???

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Season 2

# Episode Overview Score Viewer score Podcast
1 The Bad Fish Paradigm Penny and Leonard return from their date but she g...
Penny and Leonard return from their date but she gives him a brush off when he tries to get a second date. She confesses to Sheldon that it is because she thinks she isn’t smart enough to keep his interest. The stress of keeping this secret forces Sheldon to move out. But when neither Rajesh or Howard can stand him he returns to Leonard and gives away the secret. Unfortunately Penny is not happy with Leonard’s suggested resolution.
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2 The Codpiece Topology Penny is dating a new guy, so Leonard jumps at the...
Penny is dating a new guy, so Leonard jumps at the chance to date Leslie Winkle again. Sheldon hates Leslie and resents being exiled to the staircase to play Mario alone. Eventually he confronts Leslie about her scientific beliefs and when Leonard doesn’t agree with her she leaves.
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3 The Barbarian Sublimation Penny becomes frustrated at the lack of success in...
Penny becomes frustrated at the lack of success in her life and becomes addicted to online gaming. Sheldon helps her to succeed but soon becomes frustrated by her constant interruptions. He tries to wean her off gaming but his attempts fail.
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4 The Griffin Equivalency Raj discovers a star and gets featured in People M...
Raj discovers a star and gets featured in People Magazine as a result. The fame soon goes to his head and he alienates all his friends.
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5 The Euclid Alternative Leonard is working nights at the university and ca...
Leonard is working nights at the university and can’t drive Sheldon to work. Sheldon alienates all his possible chuffers and fails to learn to drive.
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6 The Cooper-Nowitzki Theorem A grad student, Ramona Nowitzki, begins pushing Sh...
A grad student, Ramona Nowitzki, begins pushing Sheldon to concentrate all his spare time on his scientific endeavours. The loss of his freedom and leisure time upsets Sheldon but he can’t stop her. Finally he gets rid of her once he has made his breakthrough and she asks if she could share credit on the paper.
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7 The Panty Pinata Polarization Penny touches Sheldon’s onion rings and is soon ...
Penny touches Sheldon’s onion rings and is soon banished from his apartment. They both refuse to apologise and begin to escalate their petty behaviour. Leonard eventually steps in to bring peace. Meanwhile Howard and Raj learn about America’s Next Top Model and work out where their house is located.
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8 The Lizard-Spock Expansion Howard picks up a girl at a club and takes her to ...
Howard picks up a girl at a club and takes her to the Mars Rover lab at the university. When they crash the Rover they have to wipe all the data and hope they don’t get in trouble. Leonard takes Stephanie home and ends up dating her. When Howard finds out he is mad. But when they offer him a date with Stephanie’s roommate he forgives them.
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9 The White Asparagus Triangulation Sheldon likes Stephanie and begins to research way...
Sheldon likes Stephanie and begins to research ways in which he can ensure that Leonard’s relationship with her succeeds.
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10 The Vartabedian Conundrum Leonard is unhappy when he realises that Stephanie...
Leonard is unhappy when he realises that Stephanie has moved in with him. He asks for Penny’s advice and she tells him that he should be honest. But whenever he broaches the subject Stephanie initiates sex. Meanwhile Sheldon is indulging his hypochondria.
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11 The Bath Item Gift Hypothesis Wizard physicist and all round hunk David Underhil...
Wizard physicist and all round hunk David Underhill starts working with Leonard. He soon asks Penny out much to Leonard’s distress. He confronts Penny about why she isn’t with him and discovers David was married and Penny kicked him out. Meanwhile Sheldon heads to the mall to find a Christmas present which can adequately reciprocate whatever gift Penny gives him. He ends up buying a range of gift baskets so his options are covered. When she gives him a napkin signed by Leonard Nimoy, he gives her all the baskets and a hug.
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12 The Killer Robot Instability Howard builds a robot called MONTE to enter into t...
Howard builds a robot called MONTE to enter into the Robot Fighting League. When Penny tells Howard what she really thinks of his sleazy come-ons he is hurt and doesn’t go to work for two days. She goes to apologise and cheer him up but ends up punching him when he tries to kiss her. Meanwhile Sheldon gets caught up in some trash talking with fellow Robot designer Kripke and ends up agreeing to a one-on-one fight with his robot. MONTE gets destroyed.
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13 The Friendship Algorithm Sheldon needs access to the open science grid comp...
Sheldon needs access to the open science grid computer and Kripke controls access to it. So Sheldon attempts to befriend him. He also asks his existing friends to fill out exhaustive surveys about why they like him. As he is having trouble he heads out to buy a book which will teach him how to make friends. He joins Kripke rock climbing and faints but is able to bring Kripke home for dinner. There he evicts Raj from his friendship circle to make room for Kripke before returning things to the status quo when he discovers Kripke doesn’t control access to the computer after all.
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14 The Financial Permeability Penny is short on her rent money and so Sheldon le...
Penny is short on her rent money and so Sheldon lends her some of his spare cash. She feels guilty about not paying it back and still can’t pay her electricity bills. Leonard tries to help and discovers that she paid her ex-boyfriend Kurt’s police fine. Leonard confronts Kurt and eventually he gives the money back. But he doesn’t tell Penny why and she ends up on a date with him while Leonard is left only with Sheldon’s admiration.
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15 The Maternal Capacitance Leonard’s mother comes to visit. She is a cold, ...
Leonard’s mother comes to visit. She is a cold, analytical neuroscientist. She drives Penny and Leonard to drink with her psychoanalysis while Sheldon loves her. Leonard ruins his chance to sleep with Penny because his mother is in his head.
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16 The Cushion Saturation Penny accidentally shoots Sheldon’s sofa cushion...
Penny accidentally shoots Sheldon’s sofa cushion with a paint ball gun. He is deeply disturbed by this turn of events and is not happy with the cushion even once it has been dry cleaned. Meanwhile Howard starts sleeping with Leslie Winkle. She uses her control over university grant money to make him do things that she wants.
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17 The Terminator Decoupling The four guys head to San Francisco on the train f...
The four guys head to San Francisco on the train for a conference. Sheldon forgets his flash drive and has to call Penny for help retrieving it. Meanwhile Summer Glau (Firefly, Terminator: The Sarah Connor Chronicles) is on the same train and Raj and Howard try to hit on her.
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18 The Work Song Nanocluster Penny starts her own business and asks Sheldon for...
Penny starts her own business and asks Sheldon for help. The other guys become involved and they end up spending all night trying to ship an order for one thousand “Penny Blossoms.”
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19 The Dead Hooker Juxtaposition A new tenant, Alicia, moves in to the apartment ab...
A new tenant, Alicia, moves in to the apartment above the guys. Sheldon’s only concern is with the noise she might make. Where as the other guys are all too quick to help her out with all her needs. Penny becomes increasingly jealous of the way they treat her and the fact that Alicia is a more successful actress than her. She warns Alicia not to take advantage of the guys and when Alicia points out the hypocrisy of that they end up fighting.
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20 The Hofstadter Isotope It’s anything can happen Thursday for the guys a...
It’s anything can happen Thursday for the guys and they end up with Penny at the comic book store. She goes on a date with the owner Stuart and Leonard is jealous. He suggests that they all head to a bar to meet women. But once there Howard’s tactics fail and it’s Raj who goes home with a large lady.
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21 The Vegas Renormalization Leslie ends her friends with benefits relationship...
Leslie ends her friends with benefits relationship with Howard. Sheldon suggests the guys go to Vegas to help Howard get over the pain. They do and end up hiring a prostitute to cheer him up. Meanwhile Sheldon locks himself out of his apartment and ends up spending the night with Penny.
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22 The Classified Materials Turbulence Howard has designed a special toilet for the Inter...
Howard has designed a special toilet for the International Space Station. He realises that it is going to malfunction and asks the guys to help him fix it. Stuart has another date with Penny and asks Leonard for advice. Leonard gives him bad advice and feels terrible about it. He tries to make things right but discovers that Penny said his name while kissing Stuart.
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23 The Monopolar Expedition Sheldon is awarded a grant to go to the North Pole...
Sheldon is awarded a grant to go to the North Pole and search for slow moving monopoles. He offers to take the guys with him as his team and they can’t resist the opportunity. Penny seems surprisingly upset about Leonard leaving but hides it from him.
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