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Arch-nerds Leonard and Sheldon may know more than their fair share about subatomic particles, but when it comes to people in general, and women in particular, they're absolutely clueless...

About the Show

Arch-nerds Leonard and Sheldon may know more than their fair share about subatomic particles, but when it comes to people in general, and women in particular, they're absolutely clueless...

Series 1 Summary

Leonard and Sheldon's geeky world is rocked to its core when the gorgeous Penny moves in across the hall. Leonard takes an immediate shine to her, while Sheldon is more sceptical, but what will this 'cheesecake scented goddess' make of them?

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    Episode 1 - Pilot

    Pilot: Leonard and Sheldon are brilliant physicists, but have no luck when it comes to understanding women. All this begins to change when the beautiful Penny moves in next door.

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    Episode 2 - The Big Bran Hypothesis

    The Big Bran Hypothesis: Sheldon is bothered by how messy Penny's flat is and he sneaks in to clean and organise it, but Penny isn't best pleased when she finds out.

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    Episode 3 - The Fuzzyboots Corollary

    The Fuzzyboots Corollary: Leonard is depressed when he discovers that Penny is seeing someone, and he actually summons up the courage to ask a woman out on a date.

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    Episode 4 - The Luminous Fish Effect

    The Luminous Fish Effect: Getting fired forces Sheldon to ponder life outside physics, leaving Leonard to take drastic action to snap his friend out of his reverie.

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    Episode 5 - The Hamburger Postulate

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

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    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. Perhaps unsurprisingly, they fail it miserably...

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    Episode 7 - The Dumpling Paradox

    The Dumpling Paradox: When Howard seduces Penny's friend and spends the night with her in Penny's flat, Penny asks if she can sleep on Leonard and Sheldon's sofa.

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    Episode 8 - The Grasshopper Experiment

    The Grasshopper Experiment: Raj panics when his parents arrange a blind date for him, only to discover that he actually can talk to a member of the opposite sex after a few drinks.

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    Episode 9 - The Cooper-Hofstadter Polarization

    The Cooper-Hofstadter Polarization: Sheldon and Leonard are asked to give a paper at a physics conference, but Sheldon is reluctant to share the credit, so Penny tries to help.

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    Episode 10 - The Loobenfeld Decay

    The Loobenfeld Decay: Leonard and Sheldon each tell a lie to avoid going to see Penny on stage singing in a production of Rent, but Sheldon's lie gets out of control.

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    Episode 11 - The Pancake Batter Anomaly

    The Pancake Batter Anomaly: Penny volunteers to nurse Sheldon when he's sick. However, his friends know how miserable he is when he's ill and stay well away from him.

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    Episode 12 - The Jerusalem Duality

    The Jerusalem Duality: When Sheldon encounters Dennis, a 15-year-old physicist who is clearly much brighter than he is, his confidence is shaken to the core.

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    Episode 13 - The Bat Jar Conjecture

    The Bat Jar Conjecture: Sheldon is ousted from the gang's Physics Bowl quiz team, so he decides to prove his superiority by forming his own team for the event.

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    Episode 14 - The Nerdvana Annihilation

    The Nerdvana Annihilation: Penny makes fun of Leonard's habit of collecting goofy memorabilia, but his friends kick up a fuss and try to keep him on the side of the nerds.

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    Episode 15 - The Shiska Indeterminacy

    Sheldon's twin sister Missy is in town and, bizarrely, she's a stunner! Leonard, Howard and Raj compete for her attention, but then Sheldon declares he will decide who dates his sister...

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    Episode 16 - The Peanut Reaction

    The Peanut Reaction: Penny wants to throw a surprise party for Leonard and gets support from Howard and Raj, but Sheldon's indulgence in an electronics shop throws her off track.

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    Episode 17 - The Tangerine Factor

    The Tangerine Factor: When Penny breaks up with her boyfriend, Leonard plucks up the courage to ask her out. Both of them then ask Sheldon for advice about the date.

The Big Bang Theory synopsis

Arch-nerds Leonard and Sheldon may know more than their fair share about subatomic particles, but when it comes to people in general, and women in particular, they're absolutely clueless...

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4 Episodes

Next on TV

The Expedition Approximation

Sheldon and Raj set up a test to find out whether they could survive a dark-matter research expedition in a salt mine by simulating the conditions in a steam…

E4 8.30pm Thur 27 Nov