The Big Bang Theory
Series 1 Episode 6

Penny hosts a Halloween party, putting Leonard, Sheldon, Howard and Raj through a new test of their social skills. Perhaps unsurprisingly, they fail miserably...

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

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

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

First shown: Wed 27 Feb 2008 | 21 mins

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

First shown: Wed 5 Mar 2008 | 20 mins

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

First shown: Wed 12 Mar 2008 | 19 mins

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

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

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

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

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