Watch The Big Bang Theory


The Big Bang Theory is a comedy that depicts the private and professional lives of four young men who work in a California University's science department. The comedy is derived from the geeky nature of these young men who often have awkward and embarrassing social interactions with women. Sheldon and Leonard share an apartment, while Raj has his own apartment and Howard lives with his mother. Each of the four characters has his own distinct personality which enhances the interactions of the group as a whole.

Sheldon is the member of the group who is considered to be the brainiest. This opinion is largely held by Sheldon, who sees himself as a superior being to most people on the planet. Sheldon thinks in logical terms which makes it hard for him to understand the decisions people make when they use their emotions. Sheldon holds a doctorate in physics which enables him to work in the physics department of the university. Although he has a superior mentality, he also has moments where the little boy in him comes out. This is especially true when he gets sick and wants to be waited on by either Leonard or their neighbor Penny, who will sing him a child's lullaby called Soft Kitty.

Leonard also has a doctorate in physics, but does not have the superior attitude that Sheldon has. Leonard's personality is often needy and more empathetic than Sheldon's. The odd circumstances of their childhoods placed them in families which were in direct opposition to the personalities they possessed. Leonard comes from a family of doctors with his mother holding a degree in psychiatry. In some episodes she visits Leonard and spends her time analyzing everything he does. Sheldon on the other hand, comes from a classic Texas family where his mother is a devout believer in Jesus. She also comes to visit on occasion and is the only person who seems to have any degree of control over her son.

Howard is a typical Jewish boy living at home with his mother even though he is well into his thirties. Howard is the only member of the group who does not possess a degree in physics. He has a Master's degree in engineering from MIT. This enables him to work in the engineering department at the same university as Sheldon and Leonard. Howard often makes devices which are used by the space program. In one episode he designed a toilet for use on the space station. After the toilet was already in place on the space station he discovered the design had a flaw. Instead of disposing of the waste through the base or bottom of the receptacle, it shot it out through the top.

Raj is also a physicist who specializes in astronomy. Raj comes from India where his parents are extremely wealthy. Raj and Howard have personalities which balance each other out. Howard is often obnoxious and considers himself a playboy or ladies man, while Raj has a more feminine side which makes him very sensitive to the needs of others. He does like to meet women, but has an emotional block which prevents him from being able to speak while in the presence of any woman other than his mother or sister. This block is removed whenever he drinks alcohol.

Penny is a young woman who lives across the hall from Sheldon and Leonard. From the moment she first moved in Leonard was smitten with her. Penny's character is free spirited and beautiful and not even close to having the amount of education of any of the young men in the group. She comes from Nebraska and has a street wise attitude which allows her to stand up and take charge of situations which usually render the men useless. Penny works as a waitress at the Cheesecake Factory and dreams of becoming an actress.

Additional characters who develop in the series include Stuart, who owns a comic book store where the guys often hang out and Bernadette, who works part-time at the Cheesecake Factory with Penny. Bernadette also works in the science department at the university and eventually becomes Howard's girlfriend. Later in the series, Sheldon also meets and forms a relationship with a female scientist named Amy who becomes friends with Penny and Bernadette.

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Thursday 8:00 pm et/pt on CBS
8 Seasons, 183 Episodes - Returning Series
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The Big Bang Theory Full Episode Guide

  • Sheldon encourages Penny and Leonard to pick a wedding date.

  • When Leonard and Sheldon's moms come to town to celebrate their award, they end up in an altercation. Meanwhile, Bernadette demands that Howard and Stuart start to pitch in at home.

  • A cancelled flight nearly prevents Leonard from giving the commencement address at his former high school.

  • The guys get into a fight after Nasa assigns Raj the task of creating a message in the event that a mission comes into contact with alien life.

The Big Bang Theory News

'Big Bang Theory' Season 8 Preview: Sheldon's Back

Sheldon's back! This new preview clip from the upcoming eighth season of "The Big Bang Theory" shows that, despite how last season ended, Sheldon won't be gone for too long. When we last left Sheldon, he was on a train heading out of town to escape all the changes in his life that he felt unequipped to deal with. But as the clip shows, Amy (Mayim Bialik) and Leonard (Johnny Galecki) head out after Sheldon and bring him back home to Pasadena. Still, Sheldon is gone for more than a month before returning.

'Big Bang Theory' Stars Settle Wage Dispute, Now Make Ridiculous Amounts of Money

Rest assured, "The Big Bang Theory" fans: Your show isn't going anywhere. "Theory" stars Johnny Galeki, Jim Parsons and Kaley Cuoco have finalized their contracts for the top-rated CBS sitcom going forward, and their new salaries are nothing to sneeze at. According to reports, the trio are now making $1 million per episode, which adds up to about $24 million per year. That makes them the highest-paid sitcom actors working today, and puts them on par with the cast of "Friends," who negotiated similar salaries at their show's peak.

'Big Bang Theory' Fans: Don't Worry Too Much About the Wage Dispute

Production for "The Big Bang Theory" continues to be delayed, but those in the know reassure fans that the popular CBS sitcom will be coming back... eventually. "What they want is completely reasonable considering the financial success of the show," says entertainment attorney Julian Chan. "It's all about balance. The show has proven long-term success and is ensemble-driven, and the balance favors the wealth with the cast... since the actors are negotiating together, I expect them to have fairly similar deals.

Big Banned 'Theory': Shows and Movies You Won't Believe China Has Outlawed

Political ties between America and China can be tense, but we never suspected Sheldon Cooper to be the cause. The Chinese government announced this week that they would be adding four new American shows to the list of banned shows in the country: "The Big Bang Theory," "NCIS," "The Good Wife" and "The Practice." In particular, the ban is reaching out to streaming sites like Youku and Tencent (think YouTube but with more TV shows and other copyrighted content) in an effort to prevent them from hosting the shows on their sites.

'Big Bang Theory' Coming to an End?

You don't have to go into mourning just yet, but you should know that "The Big Bang Theory" showrunner Steve Molaro is already got the end of the series in sight. Molaro told The Hollywood Reporter this week that the last season of the show that CBS has ordered could be the last season of the show, period. The network announced recently that it wants the show back for three more seasons—its eighth, ninth and tenth—and Molaro thinks it might be time to hang it up after the current deal ends.

'Big Bang' Star Kaley Cuoco Wears Pink at Her Wedding

Kaley Cuoco, one of the stars of "The Big Bang Theory," made her New Year's Eve celebration extra special by using the occasion to marry her boyfriend. Cuoco and tennis player Ryan Sweeting became wife and husband at the Hummingbird Nest Ranch in California, just north of Los Angeles. Guests apparently began arriving around 7:00 pm, allowing plenty of time for the couple to get hitched before the start of 2014. Cuoco later Instagrammed several photos of the event, during which she wore a strapless pink Vera Wang gown.

'Big Bang Theory' Season 7: The Sheldon-Penny-Leonard Triangle

It's not much, but when you're waiting for the return of your favorite show after its summer hiatus, you take what you can get. This week, CBS released a few details about the premiere of "The Big Band Theory"'s seventh season, including the titles of the first two episodes and a synopsis of the hour-long, two-episode season debut. Judging by the plot summary, the relationships between Sheldon (Jim Parsons), Penny (Kaley Cuoco) and Leonard (Johnny Galecki) may start out the season a little on the strained side, since Sheldon and Penny will be getting intimate—as in sharing intimate secrets—while Leonard is away at sea.

The Big Bang Theory: Season 6, Episode 24: 'The Bon Voyage Reaction' Recap

“The Big Bang Theory”, season 6, episode 24, “The Bon Voyage Reaction” During lunch, Raj tells Leonard and Sheldon how much fun he’s been having with Lucy, including a Skype date where he stared into her eyes for 20 minutes, only to realize that the screen froze. Leonard asks if he’s ever going to introduce her to his friends, and he explains that she doesn’t do well around groups of people. Howard arrives and tells Leonard that he may have found a job of a lifetime for him.

The Big Bang Theory: Season 6, Episode 23: 'The Love Spell Potential' Recap

“The Big Bang Theory”, season 6, episode 23, “The Love Spell Potential” The girls (Amy, Penny, and Bernadette) prepare for their trip to Vegas, while the boys decide to have a night of playing Dungeons and Dragons. Sheldon unveils his new set of dice, Leonard unveils his new inhaler, and Raj unveils his new playing piece. They are excited for their impending adventure, led by Dungeon Master Howard. Raj mentions that his semi-girlfriend Lucy was busy, so that’s the only reason he can stay.

What's New Tonight: Thursday, May 16th.

8:00 PM EST: “American Idol” on FOX. Season 12 Finale. The winner is finally announced after the Top 10 reunite for a group performance. “The Big Bang Theory” on CBS. Season 6 Finale. Leonard is offered a wonderful job overseas, which takes Penny and Sheldon by surprise. “The Vampire Diaries” on The CW. Season 4 Finale. Ghosts overrun the town on graduation day, hoping to settle old scores and fulfill their supernatural destinies. Elena makes her decision regarding the Salvatore brothers and confronts Katherine.

The Big Bang Theory: Season 6, Episode 22: 'The Proton Resurgence' Recap

“The Big Bang Theory”, season 6, episode 22, “The Proton Resurgence” Sheldon finds that his childhood hero, Professor Proton, is still alive and available for hire for children parties. He tells Leonard and Penny that he’s going to hire him to come to the apartment to do experiments for them (and possible a photo shoot for a calendar), and Leonard is excited, though Penny has no idea who he is. At lunch at work, Raj asks Howard if he and Bernadette would be able to dog sit his dog Cinnamon since he’s been called away to the telescope lab.

What's New Tonight: Thursday, May 2nd.

8:00 PM EST: “American Idol” on FOX. Elimination episode. One of the final four is sent home. Featuring a performance by David Cook. “Community” on NBC. Chang plots to destroy Greendale. Abed finds that the lives of the study group members have been intertwined for years. “The Big Bang Theory” on CBS. Sheldon is overly excited when he hires Professor Proton (guest star Bob Newhart), the host of his favorite TV show when he was a kid, to visit the apartment.

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