The Big Bang Theory: Season 8

2014 · 24 episodes · ★ 7.3

What Season 8 of The Big Bang Theory

Season 8 kicks off with the Caltech gang going through changes. Penny looks to shake up her career, while her relationship with Leonard faces tensions that complicate her plans. Leonard tries to balance his work with his partner, and Sheldon resists any disruption to his routine. Howard doesn't take well to his mother's relationship with Stuart, and Raj stumbles into a girlfriend who can't stand Penny. Bernadette and Amy clash with Penny several times, and the guys consider becoming partners in Stuart's business. The professional and personal ups and downs affect the whole group.

24episodes

Sep 22, 2014premiered

May 7, 2015latest episode

7.9 hrtotal runtime

Season 8 Episodes

8x01 The Locomotion Interruption
Sep 22, 2014 · 21 min · ★ 7.1
Leonard and Amy make an unexpected trip to Arizona to fetch Sheldon; Penny interviews for a job at Bernadette's company; Stuart's relationship with Mrs. Wolowitz disturbs Howard.
Directed by: Mark Cendrowski · Written by: Steven Molaro, Steve Holland, Eric Kaplan · Starring: Kevin Sussman, Stephen Root, Carol Ann Susi, David Barrera
8x02 The Junior Professor Solution
Sep 22, 2014 · 20 min · ★ 7.3
Sheldon is forced to teach a class as a Junior Professor and Howard decides to enroll in it. Meanwhile, Amy plays both sides when tension arises between Penny and Bernadette.
Directing: Mark Cendrowski · Writing: Jim Reynolds, Tara Hernandez, Maria Ferrari · Starring: Regina King
8x03 The First Pitch Insufficiency
Sep 29, 2014 · 19 min · ★ 7.0
Wolowitz feels nervous when he is asked to throw the first pitch at a Los Angeles Angels game. Penny and Leonard want to prove Sheldon wrong after he says he and Amy are the better couple.
Directed by: Mark Cendrowski · Written by: Steven Molaro, Steve Holland, Maria Ferrari · Starring: Michael J. Massimino, Malcolm Foster Smith, Michael Araujo
8x04 The Hook-Up Reverberation
Oct 6, 2014 · 19 min · ★ 7.0
Raj's honesty comes back to haunt him when his new girlfriend is unfriendly to Penny. The guys think about becoming part owners in Stuart's store.
Directed by: Mark Cendrowski · Written by: Steven Molaro, Jim Reynolds, Eric Kaplan · Starring: Kevin Sussman, Laura Spencer
8x05 The Focus Attenuation
Oct 13, 2014 · 19 min · ★ 7.2
The girls head to Las Vegas for some weekend fun, while the guys try to invent something cool, but only come up with new ways to procrastinate.
Directing: Mark Cendrowski · Writing: Steven Molaro, Steve Holland, Eric Kaplan
8x06 The Expedition Approximation
Oct 20, 2014 · 21 min · ★ 7.2
Sheldon and Raj test whether they could survive a dark-matter research expedition in a salt mine by simulating the conditions in a steam tunnel deep underground. Meanwhile, Leonard and Penny seek advice from Howard and Bernadette after they fight about money.
Directing: Mark Cendrowski · Writing: Jim Reynolds, Steve Holland, Maria Ferrari
8x07 The Misinterpretation Agitation
Oct 30, 2014 · 20 min · ★ 7.6
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. Meanwhile, Amy and Bernadette argue over whether or not female scientists should play up their sexuality.
Directed by: Mark Cendrowski · Written by: Steven Molaro, Steve Holland, Maria Ferrari · Starring: Billy Bob Thornton, Annie O'Donnell
8x08 The Prom Equivalency
Nov 6, 2014 · 20 min · ★ 7.5
The girls decide to re-enact their high school proms with the guys. While Sheldon feels under pressure to commit to his relationship with Amy, Howard worries about who Stuart will bring as his date.
Directing: Mark Cendrowski · Writing: Steven Molaro, Maria Ferrari, Eric Kaplan · Starring: Kevin Sussman, Laura Spencer, Kara Luiz, Carol Ann Susi
8x09 The Septum Deviation
Nov 13, 2014 · 20 min · ★ 7.5
When Leonard gets minor surgery on his nose, Sheldon is the one in need of sympathy. Meanwhile, Raj's parents' impending divorce causes Howard and Bernadette to work on their own marriage.
Directed by: Anthony Rich · Written by: Tara Hernandez, Steve Holland, Eric Kaplan
8x10 The Champagne Reflection
Nov 20, 2014 · 19 min · ★ 7.1
While Sheldon says a tearful goodbye to the final installment of "Fun with Flags", Leonard, Howard and Raj search for something significant in a dead professor's research. And Bernadette finds out what her colleagues really think of her.
Directed by: Mark Cendrowski · Written by: Jim Reynolds, Steve Holland, David Goetsch · Starring: John Ross Bowie, Stephen Root, LeVar Burton, Paul Willson
8x11 The Clean Room Infiltration Mid-Season Finale
Dec 11, 2014 · 19 min · ★ 7.2
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. Amy throws an authentic Victorian Christmas party, while Sheldon seeks revenge on her for making him celebrate the holidays.
Directing: Mark Cendrowski · Writing: Jim Reynolds, Steve Holland, Eric Kaplan · Starring: Brian George, Dakin Matthews, Michael Reetz
8x12 The Space Probe Disintegration
Jan 8, 2015 · 20 min · ★ 7.1
Howard tries to distract Raj, who is anxiously awaiting data from a space probe he helped launch. Meanwhile, Sheldon and Leonard go dress shopping with Penny and Amy.
Directed by: Mark Cendrowski · Written by: Steven Molaro, Steve Holland, Maria Ferrari · Starring: Noel De Souza
8x13 The Anxiety Optimization
Jan 29, 2015 · 20 min · ★ 7.3
When Sheldon becomes stuck in a rut with his work, the gang tries to help him by raising his stress levels. Howard teases Raj with a game called "Emily or Cinnamon?"
Directed by: Mark Cendrowski · Written by: Jim Reynolds, Tara Hernandez, Steve Holland · Starring: Laura Spencer, Ed Lieberman
8x14 The Troll Manifestation
Feb 5, 2015 · 21 min · ★ 7.5
Leonard and Sheldon publish a paper which is widely accepted except for comments from an internet troll. Meanwhile, the girls reminisce about embarrassing incidents from their past.
Directing: Mark Cendrowski · Writing: Jim Reynolds, Steve Holland, Maria Ferrari · Starring: Jim Meskimen, Stephen Hawking
8x15 The Comic Book Store Regeneration
Feb 19, 2015 · 20 min · ★ 7.6
Howard receives some shocking news as everyone prepares for the reopening of Stuart’s comic book store. Penny teaches Sheldon how to “let it go,” but can’t follow her own advice after she learns something infuriating about Amy. Also, Leonard and Raj think they spot Nathan Fillion at a restaurant.
Directed by: Mark Cendrowski · Written by: Steven Molaro, Steve Holland, Eric Kaplan · Starring: Kevin Sussman, John Ross Bowie, Nathan Fillion, Angela Relucio
8x16 The Intimacy Acceleration
Feb 26, 2015 · 20 min · ★ 7.6
As a joke, Sheldon and Penny try an experiment designed to make participants fall in love. Meanwhile, Leonard, Amy, Raj and Emily spend the evening trying to escape a room with a “zombie.” And, after returning from Mrs. Wolowitz’ funeral, Bernadette and Howard run into trouble at the airport.
Directed by: Mark Cendrowski · Written by: Steven Molaro, Jim Reynolds, Steve Holland · Starring: Laura Spencer, Stephanie Escajeda, Molly Morgan, Max Adler
8x17 The Colonization Application
Mar 5, 2015 · 20 min · ★ 7.2
A trip to the pet store ends in a fight after Amy learns Sheldon has applied for a one-way mission to colonize Mars. Meanwhile, Leonard surprises Penny with a very "adult" purchase, and Raj gets into trouble when he snoops around Emily's apartment.
Directing: Mark Cendrowski · Writing: Steven Molaro, Maria Ferrari, Eric Kaplan · Starring: Laura Spencer
8x18 The Leftover Thermalization
Mar 12, 2015 · 19 min · ★ 7.0
Friction ensues when a magazine fails to mention Leonard in an article about the paper he co-wrote with Sheldon. Also, a blackout at Mrs. Wolowitz’s home leads to a final family dinner in her honor.
Directing: Mark Cendrowski · Writing: Jim Reynolds, Steve Holland, Eric Kaplan · Starring: Kevin Sussman
8x19 The Skywalker Incursion
Apr 2, 2015 · 21 min · ★ 7.4
When Leonard and Sheldon are invited to speak at UC Berkeley, they take a detour to try to meet an idol. Also, when Bernadette and Howard battle over the fate of his Doctor Who TARDIS, Raj and Amy offer to settle the dispute with a game of ping pong.
Directing: Mark Cendrowski · Writing: Steven Molaro, Steve Holland, Maria Ferrari · Starring: Tate Ellington, Michael Dempsey, Mark Barrett
8x20 The Fortification Implementation
Apr 9, 2015 · 20 min · ★ 7.5
When Sheldon and Amy build a blanket fort, they come to major crossroads in their relationship. Also, Howard meets the half-brother he never knew he had. Meanwhile, Penny is invited to appear on Wil Wheaton’s podcast, but things turn awkward when Leonard joins them.
Directed by: Mark Cendrowski · Written by: Steven Molaro, Steve Holland, Maria Ferrari · Starring: Matt Bennett, Rena Strober, Wil Wheaton, Kevin Smith
8x21 The Communication Deterioration
Apr 16, 2015 · 19 min · ★ 7.0
When Raj is asked to create a message in case a NASA mission discovers alien life, the guys fight over what he should do. Also, Penny is torn between auditioning for a movie or keeping her successful pharmaceutical sales job.
Directed by: Mark Cendrowski · Written by: Steven Molaro, Jim Reynolds, Eric Kaplan · Starring: Sara Erikson, Kelli Goss, Phoebe Neidhardt, Jeff Jingle
8x22 The Graduation Transmission
Apr 23, 2015 · 19 min · ★ 7.2
Howard questions his engineering abilities when he and Sheldon can’t get a toy drone to fly. Meanwhile, a cancelled flight nearly prevents Leonard from giving the commencement address at his former high school, and Raj pits his parents against each other when his father cuts him off financially.
Directed by: Anthony Rich · Written by: Steven Molaro, Steve Holland, Eric Kaplan · Starring: Alice Amter, Brian George, Max Mittelman, Katherine Von Till
8x23 The Maternal Combustion
Apr 30, 2015 · 19 min · ★ 7.5
Personalities collide when Sheldon and Leonard’s mothers finally meet. Meanwhile, Howard finally decides to “man up” and do his fair share of the housework – but not without a little help from his friends.
Directed by: Anthony Rich · Written by: Jim Reynolds, Chuck Lorre, Maria Ferrari · Starring: Kevin Sussman, Laurie Metcalf, Christine Baranski
8x24 The Commitment Determination Season Finale
May 7, 2015 · 20 min · ★ 7.6
As Sheldon presses Leonard and Penny to set a wedding date, he encounters major changes in his own relationship with Amy. Meanwhile, Raj contemplates breaking up with Emily, and Howard and Bernadette struggle with asking Stuart to move out of their house.
Directing: Mark Cendrowski · Writing: Steven Molaro, Steve Holland, Eric Kaplan · Starring: Kevin Sussman, Laura Spencer