The Big Bang Theory

2007
4.7
2.28K reviews
TV-UNRATED
Rating
Eligible
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Season 1 episodes (17)

1 Pilot
24/09/07
Season-only
In the series premiere, when Leonard and Sheldon meet Penny, Leonard is immediately interested in her. But Sheldon feels his friend is chasing a dream he'll never catch.
2 The Big Bran Hypothesis
01/10/07
Season-only
After Leonard tries to do a favor for Penny, Sheldon ruins the plan. Leonard volunteers to sign for a package, hoping to make a good impression on Penny. However, when he involves his obsessive-compulsive roommate, Leonard sees his attempt at chivalry go horribly awry.
3 The Fuzzyboots Corollary
08/10/07
Season-only
Leonard is depressed to learn that Penny is dating someone. As a result, encouraged by his friends and fellow scientists, Leonard actually summons the nerve to ask a woman out on a date. SARA GILBERT ("Roseanne") guest stars as Leslie.
4 The Luminous Fish Effect
15/10/07
Season-only
After being fired from his job, Sheldon attempts to explore the "dreadful" life beyond physics. But his initial thrill of shopping with Penny devolves over time to him weaving ponchos as a shut-in, forcing Leonard to call on Sheldon's mother, Mary (LAURIE METCALF - "Roseanne").
5 The Hamburger Postulate
22/10/07
Season-only
After sensing that his pursuit of Penny isn't going anywhere, Leonard agrees to an unexpected sexual encounter with fellow scientist Leslie Winkle (recurring guest star SARA GILBERT). The one-night stand throws Leonard and Sheldon deep into uncharted social waters.
6 The Middle Earth Paradigm
29/10/07
Season-only
The socially stunted guys are nervous when Penny invites them to a party she's hosting. But they are ecstatic to find out that it's a Halloween party and enthusiastically don their respective nerdy costumes, which unfortunately fail to impress Penny's brutish ex-boyfriend. Afterwards, Koothrappali experiences the unexpected with a partygoer, Cheryl (ERIN ALLIN).
7 The Dumpling Paradox
05/11/07
Season-only
When Wolowitz seduces Penny's friend and ends up sleeping with her in Penny's apartment, Penny sleeps on Leonard and Sheldon's couch. Meanwhile, with Wolowitz occupied, the guys discover that they are without a fourth member of their group. In desperation, they ask Penny to join one of their two-person Halo teams.
8 The Grasshopper Experiment
12/11/07
Season-only
Koothrappali becomes overwhelmed when his parents arrange a blind date for him, but he discovers he actually can talk to a member of the opposite sex after a few drinks. However, complications arise when his beautiful date shows more interest in Sheldon.
9 The Cooper-Hofstadter Polarization
17/03/08
Season-only
Sheldon and Leonard are invited to present their joint findings at a physics conference, but Sheldon refuses. Penny steps in to mediate, but this only deepens the rift between the two best friends.
10 The Loobenfeld Decay
24/03/08
Season-only
After hearing Penny sing, Leonard lies to avoid seeing her perform. Sheldon goes one step further with a more elaborate lie, leading to the appearance of his nonexistent cousin. D.J. QUALLS ("Road Trip") guest stars.
11 The Pancake Batter Anomaly
31/03/08
Season-only
When Sheldon gets sick, Leonard and the boys know what is in store for them and avoid him like the plague; this leaves an unsuspecting Penny to nurse the world's worst patient back to health.
12 The Jerusalem Duality
14/04/08
Season-only
When Leonard and Sheldon meet a 15-year-old physics prodigy, Sheldon is distraught that this boy genius is younger and smarter. In an attempt to restore a sense of purpose, the boys come up with a solution to derail the young prodigy's research.
13 The Bat Jar Conjecture
21/04/08
Season-only
The guys decide to compete in the university's Physics Bowl, but since Sheldon's only focus is to prove his mental superiority, the guys kick him off the team. To take his spot, they enlist his nemesis Leslie Winkle (recurring guest star SARA GILBERT).
14 The Nerdvana Annihilation
28/04/08
Season-only
When Leonard and the guys buy a time-machine prop from a classic 1960 movie, its arrival creates problems for Penny, and she tells the boys that their obsession with comics and toys is "pathetic."
15 The Shiksa Indeterminacy
05/05/08
Season-only
Leonard, Wolowitz, and Koothrappali all become smitten with Sheldon's twin sister, Missy (guest star COURTNEY HENGGELER), and Leonard devises a plan to eliminate his rivals. The plan backfires, however, when Sheldon declares he will decide whom his sister dates.
16 The Peanut Reaction
12/05/08
Season-only
When Penny learns that Leonard doesn't celebrate birthdays, she attempts to throw him a surprise party; she is sidetracked by Sheldon, however, who unexpectedly gets to live out one of his greatest fantasies at an electronics store.
17 The Tangerine Factor
19/05/08
Season-only
When Penny breaks up with her boyfriend, Leonard finally gets up the courage to ask her out on a real date. When she says yes, each seeks the "wisdom" of a reluctant advisor -- Sheldon.

About this show

"Two and a Half Men" co-creator/executive producer Chuck Lorre and "Gilmore Girls" co-executive producer Bill Prady team up to create "The Big Bang Theory," a new comedy about a pair of brilliant physicists who understand how the universe works but have no clue about how to interact with people ... especially women ... and specifically the free-spirited beauty who moves in next door.

Ratings and reviews

4.7
2.28K reviews
Monalee Rodriguez
4 May 2022
My absolute favorite!! No matter how many times I rewatch this show, it never fails to cheer me up or make me laugh. All of them were cast perfectly. I wish the show ran longer, but I think they ended it beautifully. I cried on the last episode. I haven't watched another show that topped this.
Shaun Laflamme
5 May 2017
When this show first aired I was not a person to watch it but after a few years I decided to give it a shot after some great comments and ABSOLUTELY LOVED IT, I went out and bought the first two seasons and binge watched it, now I own all episodes of this show, so if you are down and out and need a laugh I recommend taking 21 minutes to watch at least one episode, never know it might put that smile back on. This show is "Off the chain mail" Lenonard Hofstadter.
siddharth sharma
22 May 2020
I've just finished watching all 12 seasons, 232 episodes of the big bang theory for the 10th whole time, or 2320 episodes. I absolutely love this show, addicted, and I rewatch it as soon as I finish...I just saw the last episode, and Im gonna go watch the pilot right now