Season 1
(2007)
Overview
University physicists Leonard and Sheldon know whether to use an integral or a differential to solve the area under a curve. But they don't have a clue about girls. Or dating. Or clothes. Or parties. Or having fun. Or, basically, life. So when a pretty blonde named Penny moves in the apartment across the hall, the guys decide to get an education outside of the classroom. Boys, you have a lot to learn.
Cast
as Leonard Hofstadter
as Sheldon Cooper
as Penny
as Howard Wolowitz
as Rajesh Koothrappali
Episodes
Pilot 7.2
September 24, 2007
Brilliant physicist roommates Leonard and Sheldon meet their new neighbor Penny, who begins showing them that as much a…
The Big Bran Hypothesis 7.3
October 1, 2007
Leonard volunteers to sign for a package in an attempt to make a good impression on Penny, but when he enlists Sheldon …
The Fuzzy Boots Corollary 7.1
October 8, 2007
Leonard asks a woman out after he finds out that Penny is seeing someone.
The Luminous Fish Effect 7.5
October 15, 2007
Sheldon's getting fired forces him to explore what life has to offer outside physics, leaving Leonard to take drastic a…
The Hamburger Postulate 7.5
October 22, 2007
Fearing he's wasting his time on Penny, Leonard ends up making a connection with Leslie.
The Middle-Earth Paradigm 7.4
October 29, 2007
Penny hosts a Halloween party, putting Leonard, Sheldon, Wolowitz, and Koothrappali through a new test of their social …
The Dumpling Paradox 7.6
November 5, 2007
With Wolowitz AWOL with one of her friends, Penny's recruited to fill in for him on the guys' Halo team
The Grasshopper Experiment 7.3
November 12, 2007
Raj's parents set him up on a blind date, but just when he discovers he can talk to her, she shows interest in Sheldon.
The Cooper-Hofstadter Polarization 7.5
March 17, 2008
When they're invited to present at a physics conference, Sheldon's reluctance to share the credit leads to a tiff betwe…
The Loobenfeld Decay 7.4
March 24, 2008
Leonard and Sheldon each lie to avoid seeing Penny's concert, but Sheldon's is a bit too complicated for his own good.
The Pancake Batter Anomaly 7.6
March 31, 2008
With his friends knowing how sour he acts when sick—and avoiding him as a result—Sheldon is nursed by Penny, who hasn't…
The Jerusalem Duality 7.1
April 14, 2008
With Sheldon rattled over meeting Dennis, a 15-year-old physicist who's smarter than he, Leonard helps him look for a w…
The Bat Jar Conjecture 7.4
April 21, 2008
Sheldon finds himself booted from the gang's Physics Bowl team and replaced with Leslie, so he forms his own team, hopi…
The Nerdvana Annihilation 7.2
April 28, 2008
When delivery of another collectible leads to Penny's lashing out at Leonard, he decides it's time to give up his habit…
The Pork Chop Indeterminacy 7.3
May 5, 2008
The rest of the gang fall for Sheldon's twin sister, and Leonard's plan to win her heart is derailed when Sheldon decla…
The Peanut Reaction 7.4
May 12, 2008
Penny wants to throw a surprise party for Leonard, but Sheldon's indulgence at an electronics store throws her off-trac…
The Tangerine Factor 7.7
May 19, 2008
Penny's break-up spurs Leonard to summon the courage to ask her out, and each goes to Sheldon for advice on their upcom…