The Big Bang Theory Season 8

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The Big Bang Theory Season 8
Leonard and Sheldon are brilliant physicists - geniuses in the laboratory, but socially challenged everywhere else. Enter their beautiful, street-smart neighbor, Penny, who aims to teach them a thing or two about life. Despite their on-again, off-again relationship in the past, Leonard believes he's found true love with Penny and they have finally gotten engaged. Even Sheldon has found a female companion, entering into a "Relationship Agreement" with neurobiologist Amy Farrah Fowler. In their free time, Leonard and Sheldon continue to enjoy frequent trips to the comic book store and fantasy role-playing games with their ever-expanding universe of friends, including fellow scientists Koothrappali, Wolowitz and Wolowitz's adorable microbiologist wife, Bernadette.

Episode guide

  1. 01 - The Locomotion Interruption

    On the eighth season premiere, Leonard and Amy take an unexpected road trip to Arizona to pick up Sheldon. Meanwhile, Penny interviews for a job at Bernadette's company.
  2. 02 - The Junior Professor Solution

    When Sheldon (JIM PARSONS) is forced to teach a class, Howard (SIMON HELBERG) surprises everyone by taking it. Guest star REGINA KING returns as Mrs. Davis.
  3. 03 - The First Pitch Insufficiency

    Howard's nervous when NASA asks him to throw out the first pitch at a game. Also, Leonard & Penny try to prove Sheldon wrong after he claims that he & Amy are a superior couple.
  4. 04 - The Hook-Up Reverberation

    Raj's honesty about his past comes back to bite him after his girlfriend, is cold to Penny. Meanwhile, the guys consider becoming part-owners in Stuart's comic-book store
  5. 05 - The Focus Attenuation

    With the girls away in Vegas for the weekend, the guys try to invent "the next big thing," but only come up with new ways to procrastinate
  6. 06 - The Expedition Approximation

    Sheldon and Raj see if they can survive intense heat - and each other - when they venture deep underground in the name of science.
  7. 07 - The Misinterpretation Agitation

    The guys try to help Penny out of an awkward work dilemma, when a smitten doctor shows up at her door after her flirtatious sales techniques work a little too well.
  8. 08 - The Prom Equivalency

    When the gang recreates a high-school prom night on the roof of the guys' apartment building, Sheldon feels pressure to participate in all the typical romantic traditions.
  9. 09 - The Septum Deviation

    When Leonard gets minor surgery on his nose, Sheldon has a major overreaction. Meanwhile Howard and Bernadette work on their marriage in light of Raj's parents' impending divorce.
  10. 10 - The Champagne Reflection

    As Sheldon records the final installment of Fun with Flags, Bernadette is shocked to learn of her co-workers' true feelings from Penny.
  11. 11 - The Clean Room Infiltration

    Leonard and Howard turn to Raj for help in dealing with a work emergency when they nearly come to blows after blaming each other for a potential disaster at the university.
  12. 12 - The Space Probe Disintegration

    When the guys finally agree to do something the girls like, it leads to a confrontation between Leonard and Sheldon.
  13. 13 - The Anxiety Optimization

    Sheldon worries his comfortable lifestyle is preventing him from achieving scientific progress so he asks his friends to make him miserable.
  14. 14 - The Troll Manifestation

    When an online bully destroys Leonard and Sheldon's physics paper, the guys band together to take him down.
  15. 15 - The Comic Book Store Regeneration

    Howard receives some shocking news as everyone prepares for the reopening of Stuart's comic book store, and Penny teaches Sheldon how to "let it go".
  16. 16 - The Intimacy Acceleration

    When the gang hears about an experiment designed to make participants fall in love, Sheldon and Penny put it to the test as a joke.
  17. 17 - The Colonization Application

    Trouble arises when Amy learns that Sheldon has applied for a one-way mission to colonise Mars.
  18. 18 - The Leftover Thermalization

    When a magazine incorrectly credits Sheldon as the lead scientist of the paper he co-wrote with Sheldon, things get awkward.
  19. 19 - The Skywalker Incursion

    When Leonard and Sheldon are invited to speak at UC Berkeley, they take a detour to try to sneak on to George Lucas's Skywalker Ranch to meet their idol.
  20. 20 - The Fortification Implementation

    Wolowitz is shocked when a man claiming to be his half brother shows up at the front door; and Sheldon & Amy reach a crossroads in their relationship while building a blanket fort.
  21. 21 - The Communication Deterioration

    Penny contemplates a return to acting, while Raj is tasked with creating a message for NASA in case a mission discovers alien life — prompting a fight with the guys.
  22. 22 - The Graduation Transmission

    Raj faces a threat to his easy lifestyle when he is cut off from the family fortune, while a canceled flight nearly prevents Leonard from speaking at his former high school.
  23. 23 - The Maternal Combustion

    Sheldon & Leonard's mothers finally meet. Meanwhile, Howard decides to "man up" and do his fair share of the housework -- with a little help from his friends.