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Series 1 Episode 10

To get out of seeing Penny perform on stage, Leonard and Sheldon each come up with an excuse. But one lie leads to another, and it's not long before Sheldon loses control of the situation.

Pilot: Leonard and Sheldon's geeky world is shaken up by the arrival of a new neighbour

First shown: Thu 14 Feb 2008 | 22 mins

Series 1 Episode 1

The Big Bran Hypothesis: Sheldon sneaks into Penny's apartment to tidy it, but she's not pleased

First shown: Wed 20 Feb 2008 | 20 mins

Series 1 Episode 2

The Fuzzyboots Corollary: Leonard summons up the courage to ask a woman out on a date

First shown: Wed 27 Feb 2008 | 21 mins

Series 1 Episode 3

The Luminous Fish Effect: Getting fired leaves Sheldon pondering life beyond physics

First shown: Wed 5 Mar 2008 | 20 mins

Series 1 Episode 4

The Hamburger Postulate: Sheldon is uncomfortable with a change to his hamburger routine

First shown: Wed 12 Mar 2008 | 19 mins

Series 1 Episode 5

The Middle Earth Paradigm: Penny's Halloween party puts the gang's social skills to the test

First shown: Wed 19 Mar 2008 | 20 mins

Series 1 Episode 6

The Dumpling Paradox: Penny needs somewhere to sleep when Howard spends the night in her flat with her friend

First shown: Wed 26 Mar 2008 | 20 mins

Series 1 Episode 7

The Grasshopper Experiment: Raj discovers that he can talk to women when he's had a few drinks

First shown: Wed 2 Apr 2008 | 19 mins

Series 1 Episode 8

The Cooper-Hofstadter Polarization: Sheldon's reluctance to share credit on joint work causes a rift between him and Leonard

First shown: Wed 9 Apr 2008 | 19 mins

Series 1 Episode 9

The Loobenfeld Decay: Sheldon lies to get out of seeing Penny perform on stage. But one lie leads to another...

First shown: Wed 16 Apr 2008 | 20 mins

Series 1 Episode 10

The Pancake Batter Anomaly: Penny makes the mistake of volunteering to look after Sheldon when he's sick

First shown: Wed 23 Apr 2008 | 21 mins

Series 1 Episode 11

The Jerusalem Duality: Sheldon's shaken when he meets a teenage physicist who is clearly much brighter than he is

First shown: Wed 30 Apr 2008 | 19 mins

Series 1 Episode 12

The Bat Jar Conjecture: Sheldon is ousted from the gang's Physics Bowl quiz team, so he forms a rival team

First shown: Wed 7 May 2008 | 20 mins

Series 1 Episode 13

The Nerdvana Annihilation: Leonard considers giving up his habit of collecting memorabilia when Penny makes fun of it

First shown: Wed 14 May 2008 | 19 mins

Series 1 Episode 14

The Shiksa Indeterminacy: Leonard, Howard and Raj compete for the attention of Sheldon's stunning twin sister

First shown: Wed 21 May 2008 | 21 mins

Series 1 Episode 15

The Peanut Reaction: Penny plans a surprise party for Leonard, but things don't exactly go to plan

First shown: Wed 28 May 2008 | 19 mins

Series 1 Episode 16

The Tangerine Factor: Penny's break-up spurs Leonard to summon the courage to ask her out

First shown: Wed 4 Jun 2008 | 19 mins

Series 1 Episode 17

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