Physicists Leonard and Sheldon find their nerd-centric social circle with pals Howard and Raj expanding when aspiring actress Penny moves in next door.
The best episode of "The Big Bang Theory" season 1 is "Pilot", rated 8.1/10 from 7537 user votes. It was directed by James Burrows and written by Bill Prady, Chuck Lorre. "Pilot" aired on 9/24/2007 and is rated 0.1 point(s) higher than the second highest rated, "The Big Bran Hypothesis".
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.
Director: James Burrows
Writer: Bill Prady, Chuck Lorre
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.
Director: Mark Cendrowski
Writer: N/A
Leonard asks a woman out after he finds out that Penny is seeing someone.
Director: Mark Cendrowski
Writer: N/A
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.
Director: Bob Koherr, Mark Cendrowski
Writer: N/A
Fearing he's wasting his time on Penny, Leonard ends up making a connection with Leslie.
Director: Andrew D. Weyman
Writer: N/A
Penny hosts a Halloween party, putting Leonard, Sheldon, Wolowitz, and Koothrappali through a new test of their social skills.
Director: Mark Cendrowski
Writer: N/A
With Wolowitz AWOL with one of her friends, Penny's recruited to fill in for him on the guys' Halo team
Director: Mark Cendrowski
Writer: N/A
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.
Director: Ted Wass
Writer: N/A
When they're invited to present at a physics conference, Sheldon's reluctance to share the credit leads to a tiff between him and Leonard, and Penny's intervention only exacerbates the situation.
Director: Joel Murray
Writer: N/A
Leonard and Sheldon each lie to avoid seeing Penny's concert, but Sheldon's is a bit too complicated for his own good.
Director: Mark Cendrowski
Writer: N/A
With his friends knowing how sour he acts when sick—and avoiding him as a result—Sheldon is nursed by Penny, who hasn't a clue what she's in for.
Director: Mark Cendrowski
Writer: N/A
With Sheldon rattled over meeting Dennis, a 15-year-old physicist who's smarter than he, Leonard helps him look for a way to debunk Dennis's research.
Director: Mark Cendrowski
Writer: N/A
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.
Director: Mark Cendrowski
Writer: N/A
When delivery of another collectible leads to Penny's lashing out at Leonard, he decides it's time to give up his habit, much to his friends' protestation.
Director: Mark Cendrowski
Writer: N/A
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.
Director: Mark Cendrowski
Writer: N/A
Penny wants to throw a surprise party for Leonard, but Sheldon's indulgence at an electronics store throws her off-track.
Director: Mark Cendrowski
Writer: N/A
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.
Director: Mark Cendrowski
Writer: N/A