Title Airs On

S8:E1 The Locomotion Interruption

The Big Bang Theory
09/22/2014 12:25 pm EDT

Sheldon's trip comes to an end when he is robbed, Penny interviews for a job at Bernadette's company, and Howard is ...read more Sheldon's trip comes to an end when he is robbed, Penny interviews for a job at Bernadette's company, and Howard is weirded out by his mother's relationship with Stuart. show less

S8:E2 The Junior Professor Solution

The Big Bang Theory
09/22/2014 12:26 pm EDT

Sheldon is forced to teach a class as a Junior Professor. Meanwhile, Amy plays both sides when tension arises between Penny and ...read more Sheldon is forced to teach a class as a Junior Professor. Meanwhile, Amy plays both sides when tension arises between Penny and Bernadette. show less

S8:E3 The First Pitch Insufficiency

The Big Bang Theory
09/29/2014 12:27 pm EDT

Howard becomes nervous after NASA asks him to throw out the first pitch at a Los Angeles Angels game. Meanwhile, Leonard and ...read more Howard becomes nervous after NASA asks him to throw out the first pitch at a Los Angeles Angels game. Meanwhile, Leonard and Penny try to prove Sheldon wrong when he says that he and Amy have a 'superior' relationship. show less

S8:E4 The Hook-up Reverberation

The Big Bang Theory
10/06/2014 12:28 pm EDT

Raj's honesty about his past comes back to haunt him after Emily takes a dislike to Penny. Meanwhile, the guys consider ...read more Raj's honesty about his past comes back to haunt him after Emily takes a dislike to Penny. Meanwhile, the guys consider investing in the comic book store. show less

S8:E5 The Focus Attenuation

The Big Bang Theory
10/13/2014 12:29 pm EDT

The girls head to Las Vegas, while the guys try to invent something cool, but only come up with new ways to procrastinate.

S8:E6 The Expedition Approximation

The Big Bang Theory
10/20/2014 12:29 pm EDT

Sheldon and Raj test whether they could survive a dark-matter research expedition in a salt mine by simulating the conditions in ...read more 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. Meanwhile, Leonard and Penny seek advice from Howard and Bernadette when they argue about money. show less

S8:E7 The Misinterpretation Agitation

The Big Bang Theory
10/30/2014 12:30 pm EDT

The guys befriend one of Penny's clients when he shows up at her apartment. Meanwhile, Bernadette gets upset when Amy ...read more The guys befriend one of Penny's clients when he shows up at her apartment. Meanwhile, Bernadette gets upset when Amy torpedoes an article about her for a local magazine. show less

S8:E8 The Prom Equivalency

The Big Bang Theory
11/06/2014 12:31 pm EST

The girls decide to re-enact their high school proms with the guys. While Sheldon feels under pressure to commit to his ...read more 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. show less

S8:E9 The Septum Deviation

The Big Bang Theory
11/13/2014 12:31 pm EST

Sheldon panics when Leonard announces he has to go into the hospital for surgery. Raj discovers his parents have divorced.

S8:E10 The Champagne Reflection

The Big Bang Theory
11/20/2014 12:32 pm EST

While Sheldon retires "Fun With Flags", Leonard, Howard and Raj look for something significant in a dead professor's ...read more While Sheldon retires "Fun With Flags", Leonard, Howard and Raj look for something significant in a dead professor's research, and Bernadette finds out what her colleagues really think of her. show less

S8:E11 The Clean Room Infiltration

The Big Bang Theory
12/11/2014 12:32 pm EST

Amy hosts a traditional Victorian Christmas Eve dinner as Raj's father comes to visit, while the guys try to shoo out a bird ...read more Amy hosts a traditional Victorian Christmas Eve dinner as Raj's father comes to visit, while the guys try to shoo out a bird they let into the university clean room. show less

S8:E12 The Space Probe Disintegration

The Big Bang Theory
01/08/2015 12:33 pm EST

Raj worries a probe he designed will not work in outer space, while Leonard and Sheldon go shopping with Penny and Amy.

S8:E13 The Anxiety Optimization

The Big Bang Theory
01/29/2015 12:33 pm EST

When Sheldon becomes stuck in a rut with his work, the gang try to help him by raising his stress levels. Howard teases Raj with ...read more When Sheldon becomes stuck in a rut with his work, the gang try to help him by raising his stress levels. Howard teases Raj with a game called "Emily or Cinnamon." show less

S8:E14 The Troll Manifestation

The Big Bang Theory
02/05/2015 12:34 pm EST

Leonard and Sheldon defend themselves against criticism from an online bully, while the girls confront embarrassing moments from ...read more Leonard and Sheldon defend themselves against criticism from an online bully, while the girls confront embarrassing moments from their pasts. show less

S8:E15 The Comic Book Store Regeneration

The Big Bang Theory
02/19/2015 12:34 pm EST

Howard receives some shocking news as everyone prepares for the re-opening of the comic book store. Meanwhile, Penny tries to ...read more Howard receives some shocking news as everyone prepares for the re-opening of the comic book store. Meanwhile, Penny tries to teach Sheldon how to "let it go," but can't follow her own advice when she learns something infuriating about Amy. show less

S8:E16 The Intimacy Acceleration

The Big Bang Theory
02/26/2015 12:35 pm EST

Sheldon and Penny agree to participate in an unusual experiment. Leonard, Amy, Raj and Emily spend the evening trying to escape ...read more Sheldon and Penny agree to participate in an unusual experiment. Leonard, Amy, Raj and Emily spend the evening trying to escape a room with a "zombie". Howard and Bernadette run into trouble at the airport after returning from Mrs. Wolowitz's funeral. show less

S8:E17 The Colonization Application

The Big Bang Theory
03/05/2015 12:35 pm EST

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, ...read more 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. show less

S8:E18 The Leftover Thermalization

The Big Bang Theory
03/12/2015 12:36 pm EDT

Tension arises when a magazine fails to mention Leonard in an article about the paper he co-wrote with Sheldon, and a blackout ...read more Tension arises when a magazine fails to mention Leonard in an article about the paper he co-wrote with Sheldon, and a blackout at Mrs. Wolowitz's home leads to a final family dinner in her honor. show less

S8:E19 The Skywalker Incursion

The Big Bang Theory
04/02/2015 12:36 pm EDT

When Leonard and Sheldon are invited to speak at UC Berkeley, they take a detour to try and meet one of their idols. Meanwhile, ...read more When Leonard and Sheldon are invited to speak at UC Berkeley, they take a detour to try and meet one of their idols. Meanwhile, while cleaning out Mrs. Wolowitz's house, a ping pong battle ensues when Howard and Bernadette argue over the fate of his TARDIS. show less

S8:E20 The Fortification Implementation

The Big Bang Theory
04/09/2015 12:37 pm EDT

Howard meets the half-brother he never knew he had. Penny is invited to appear on Wil Wheaton's podcast.

S8:E21 The Communication Deterioration

The Big Bang Theory
04/16/2015 12:37 pm EDT

When Raj is asked to create a message on the off chance a NASA mission discovers alien life, the guys fight over what he should ...read more When Raj is asked to create a message on the off chance a NASA mission discovers alien life, the guys fight over what he should do, while Penny contemplates returning to acting. show less

S8:E22 The Graduation Transmission

The Big Bang Theory
04/23/2015 12:38 pm EDT

Howard questions his engineering abilities when he and Sheldon can't get a toy drone to fly. A cancelled flight nearly ...read more Howard questions his engineering abilities when he and Sheldon can't get a toy drone to fly. A cancelled flight nearly prevents Leonard from giving the commencement address at his former high school. Raj pits his parents against each other when his father cuts him off financially. show less

S8:E23 The Maternal Combustion

The Big Bang Theory
04/30/2015 12:38 pm EDT

Personalities collide when Leonard and Sheldon's mothers meet for the first time. Bernadette reaches her limit with Howard ...read more Personalities collide when Leonard and Sheldon's mothers meet for the first time. Bernadette reaches her limit with Howard and Stuart. show less

S8:E24 The Commitment Determination

The Big Bang Theory
05/07/2015 12:39 pm EDT

As Sheldon presses Leonard and Penny to set a wedding date, he encounters major changes in his relationship with Amy. Meanwhile, ...read more As Sheldon presses Leonard and Penny to set a wedding date, he encounters major changes in his relationship with Amy. Meanwhile, Raj wonders if he should break up with Emily, and Howard and Bernadette struggle to ask Stuart to move out. show less