TV Shows, The Big Bang Theory, Season 1 | Episode 1 Times Watched: 84,904 | Comments: 5

Brilliant physicist roommates Leonard and Sheldon meet their new neighbor Penny, who begins showing them that as much as they know about science, they know little about actual living.

TV Shows, The Big Bang Theory, Season 1 | Episode 2 Times Watched: 53,753 | Comments: 4

Leonard volunteers to sign for a package in an attempt to make a good impression on Penny, but when he enlists Sheldon for help, his attempt at chivalry goes terribly awry.

TV Shows, The Big Bang Theory, Season 1 | Episode 3 Times Watched: 56,005 | Comments: 5

Leonard asks a woman out after he finds out that Penny is seeing someone.

TV Shows, The Big Bang Theory, Season 1 | Episode 4 Times Watched: 58,617 | Comments: 4

Sheldon's getting fired forces him to explore what life has to offer outside physics, leaving Leonard to take drastic action to snap his friend out of his funk.

TV Shows, The Big Bang Theory, Season 1 | Episode 5 Times Watched: 48,943 | Comments: 2

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

TV Shows, The Big Bang Theory, Season 1 | Episode 6 Times Watched: 47,116 | Comments: 3

Penny hosts a Halloween party, putting Leonard, Sheldon, Wolowitz, and Koothrappali through a new test of their social skills.

TV Shows, The Big Bang Theory, Season 1 | Episode 7 Times Watched: 48,858 | Comments: 4

With Wolowitz AWOL with one of her friends, Penny's recruited to fill in for him on the guys' Halo team.

TV Shows, The Big Bang Theory, Season 1 | Episode 8 Times Watched: 48,287 | Comments: 2

Raj's parents set him up on a blind date, and when he discovers he can talk to her, she shows interest in Sheldon.

TV Shows, The Big Bang Theory, Season 1 | Episode 9 Times Watched: 41,576 | Comments: 3

When they're invited to present at a physics conference, Sheldon's reluctance to share the credit leads to a tiff between he and Leonard, and Penny's intervention only exacerbates the situation.

TV Shows, The Big Bang Theory, Season 1 | Episode 10 Times Watched: 47,369 | Comments: 1

Leonard and Sheldon each lie to avoid hearing Penny sing in a production of Rent. However, Sheldon's lie becomes a bit too complicated for its own good.

TV Shows, The Big Bang Theory, Season 1 | Episode 11 Times Watched: 45,706 | Comments: 2

With his friends knowing how sour he acts when sick"and avoiding him as a result"Sheldon is nursed for by Penny, who hasn't a clue what she's in for.

TV Shows, The Big Bang Theory, Season 1 | Episode 12 Times Watched: 44,460 | Comments: 5

With Sheldon rattled and impossible to be around after meeting Dennis, a 15-year-old physicist who's smarter than he, the rest of the guys search for a way to eliminate the threat.

TV Shows, The Big Bang Theory, Season 1 | Episode 13 Times Watched: 42,721 | Comments: 6

Sheldon finds himself booted from the gang's Physics Bowl team and replaced with Leslie, so he forms his own team, hoping to prove he's superior.

TV Shows, The Big Bang Theory, Season 1 | Episode 14 Times Watched: 42,906 | Comments: 1

When the delivery of a full-size prop of 1960's The Time Machine makes Penny miss work, she scolds Leonard about his sci-fi collectibles. He decides it's time to give up such childish pursuits.

TV Shows, The Big Bang Theory, Season 1 | Episode 15 Times Watched: 45,379 | Comments: 1

The rest of the gang fall for Sheldon's twin sister, and Leonard's plan to win her heart is derailed when Sheldon declares he'll be the one to decide who can date her.

TV Shows, The Big Bang Theory, Season 1 | Episode 16 Times Watched: 42,108 | Comments: 1

Penny wants to throw a surprise party for Leonard, but Sheldon's indulgence at an electronics store throws her off-track.

TV Shows, The Big Bang Theory, Season 1 | Episode 17 Times Watched: 43,602 | Comments: 2

Penny's break-up spurs Leonard to summon the courage to ask her out, and each goes to Sheldon for advice on their upcoming date.

TV Shows, The Big Bang Theory, Season 2 | Episode 1 Times Watched: 63,690 | Comments: 4

Penny opens up to a reluctant Sheldon after a less-than-stellar first date with Leonard, placing him in the uncomfortable position of having to keep a secret.

TV Shows, The Big Bang Theory, Season 2 | Episode 2 Times Watched: 64,844 | Comments: 3

Seeing Penny with another guy sends Leonard back to Leslie Winkle, much to Sheldon's dismay.

TV Shows, The Big Bang Theory, Season 2 | Episode 3 Times Watched: 65,232 | Comments: 1

Penny becomes addicted to an online game based on the world of Conan the Barbarian and persistantly pesters Sheldon for advice.

TV Shows, The Big Bang Theory, Season 2 | Episode 4 Times Watched: 62,646 | Comments: 5

Full of confidence following being named one of People's "30 to Watch Under 30", Raj hits on Penny and becomes impossibly arrogant.

TV Shows, The Big Bang Theory, Season 2 | Episode 5 Times Watched: 68,162 | Comments: 5

An intervention is used to try to force Sheldon to overcome his fear of driving.

TV Shows, The Big Bang Theory, Season 2 | Episode 6 Times Watched: 57,180 | Comments: 5

Sheldon, and his friends, are mystified when a younger grad student is attracted to him.

TV Shows, The Big Bang Theory, Season 2 | Episode 7 Times Watched: 66,019 | Comments: 4

When Sheldon bans Penny from the apartment for numerous minor infractions, she decides to retaliate. Howard and Raj search for the America's Next Top Model house.

TV Shows, The Big Bang Theory, Season 2 | Episode 8 Times Watched: 51,493 | Comments: 3

A girl Wolowitz has a major crush on falls for Leonard. Sheldon tries to improve rock-paper-scissors.