The Big Bang Theory Season 1 Episodes

Find out where to watch Season 1 of The Big Bang Theory tonight
Overview TV Listings Seasons & Episodes Cast

Season 1 Episode Guide

Episode 1 - Pilot

A pair of socially awkward theoretical physicists meet their new neighbour Penny.
Episode 2 - The Big Bran Hypothesis

Penny is furious with Leonard and Sheldon when they sneak into her apartment and clean it while she is sleeping.
Episode 3 - The Fuzzyboots Corollary

Leonard gets upset when he discovers that Penny is seeing a new guy.
Episode 4 - The Luminous Fish Effect

Sheldon's mother is called to intervene when he delves into numerous obsessions after being fired.
Episode 5 - The Hamburger Postulate

Leslie seduces Leonard, but afterwards tells him that she is only interested in a one-night stand.
Episode 6 - The Middle Earth Paradigm

The guys are invited to Penny's Halloween party.
Episode 7 - The Dumpling Paradox

When Howard hooks up with Penny's old friend, his absence in the gang causes problems for the rest of the guys.
Episode 8 - The Grasshopper Experiment

When Raj's parents set him up on a blind date, he finds he can talk to women with the aid of alcohol.
Episode 9 - The Cooper-Hofstadter Polarization

Leonard wants to present a paper they co-authored at a physics convention, but Sheldon doesn't.
Episode 10 - The Loobenfeld Decay

Sheldon and Leonard lie to avoid seeing Penny perform.
Episode 11 - The Pancake Batter Anomaly

Sheldon gets sick and Penny has to deal with him.
Episode 12 - The Jerusalem Duality

The boys try to derail a young physics prodigy's research.
Episode 13 - The Bat Jar Conjecture

The guys kick Sheldon off the Physics Bowl team and replace him with his nemesis, Leslie.
Episode 14 - The Nerdvana Annihilation

The guys buy a time machine; Penny disapproves.
Episode 15 - The Pork Chop Indeterminacy

The boys all become smitten with Sheldon's twin sister.
Episode 16 - The Peanut Reaction

Penny attempts to throw Leonard a wild surprise party.
Episode 17 - The Tangerine Factor

Leonard finds the courage to ask Penny out on a real date.


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