Physicists Leonard and Sheldon find their nerd-centric social circle with pals Howard and Raj expanding when aspiring actress Penny moves in next door.
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Physicists Leonard and Sheldon find their nerd-centric social circle with pals Howard and Raj expanding when aspiring actress Penny moves in next door.
Season 10 episodes
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After Sheldon’s mother and Leonard's father share an evening together, everyone deals with an awkward morning the next day. Also, Penny’s family arrives for the wedding ceremony, including her anxiety-ridden mother, Susan, and her drug dealing brother, Randall.
Episode credits
Directed by Mark CendrowskiWritten by Chuck Lorre, Tara Hernandez, Jim Reynolds, Steve Holland, Eric Kaplan, Steven MolaroGuest stars Kevin Sussman, Laurie Metcalf, Judd Hirsch, Katey Sagal, Jack McBrayer, Dean Norris, Keith Carradine, Christine Baranski
Colonel Williams, an Air Force representative from the Department of Material Command sits down to talk with Wolowitz.
Episode credits
Directed by Mark CendrowskiWritten by Chuck Lorre, Steve Holland, Eric Kaplan, Jim Reynolds, Steven Molaro, Maria FerrariGuest stars Josh Zuckerman, Dean Norris, Kimberly Brooks
Tensions rise when the boys struggle to complete their government project on time and Sheldon tries an energy drink to stay awake. Also, Penny and Amy go to a “party” at Bert the geologist’s house, and Koothrappali learns Bernadette’s true feelings about her pregnancy when they clean out the future baby room.
Episode credits
Directed by Mark CendrowskiWritten by Steven Molaro, Tara Hernandez, Steve Holland, Saladin K. Patterson, Maria Ferrari, Jeremy HoweGuest stars Brian George, Brandon W. Jones, Dean Norris, Brian Posehn
When Amy’s apartment floods, she proposes a “cohabitation experiment” with Sheldon. Also, Howard and Bernadette are upset when Koothrappali learns the gender of the baby before they do.
Episode credits
Directed by Mark CendrowskiWritten by Chuck Lorre, Steve Holland, Tara Hernandez, Maria Ferrari, David Goetsch, Steven Molaro
Leonard and Penny must separate a quarreling Sheldon and Amy when their cohabitation does not go as planned, and Sheldon threatens to break off their relationship when Amy refuses to adhere to the bathroom schedule. Also, Howard and Bernadette find unexpected guests at their house when they decide to stay home from a planned vacation.
Episode credits
Directed by Mark CendrowskiWritten by Chuck Lorre, Tara Hernandez, Jim Reynolds, Steve Holland, Maria Ferrari, Eric KaplanGuest stars Kevin Sussman
Penny is surprised to learn she has fans of her performance in "Serial Ape-ist" when she attends Van Nuys Comic Con with Leonard. Also, Amy hosts a Sheldon-style brunch at Penny’s apartment, and Wolowitz makes an impulsive purchase when he starts stressing out about the baby on the way.
Episode credits
Directed by Mark CendrowskiWritten by Tara Hernandez, Steve Holland, Jeremy Howe, Steven Molaro, Saladin K. Patterson, Anthony Del BroccoloGuest stars Kevin Sussman, Bryan Safi, Tucker Albrizzi, Jareb Dauplaise, Josh Banday, Michelle Arthur, Brian Posehn
In order to continue living with Sheldon, Amy lies to him about repairs being made to her apartment and they host an "on location" episode of "Fun With Flags" in Penny’s apartment. Also, Leonard lets Penny decorate Sheldon’s old room after he learns that she has been secretly moving Leonard’s collectibles into storage.
Episode credits
Directed by Mark CendrowskiWritten by Steven Molaro, Jim Reynolds, Steve Holland, Maria Ferrari, Eric Kaplan, Adam Faberman
After a successful experiment combining their genes, Sheldon will stop at nothing to convince Amy they should procreate. Also, Koothrappali is embarrassed to tell the gang what the new woman he’s dating does for a living.
Episode credits
Directed by Mark CendrowskiWritten by Chuck Lorre, Tara Hernandez, Steve Holland, Saladin K. Patterson, Steven Molaro, Maria FerrariGuest stars Maria Canals-Barrera
When Bert, a Caltech geologist, wins the MacArthur Genius fellowship, Sheldon is overcome with jealousy. Also, Wolowitz finds an old remote control Stephen Hawking action figure he invented.
Episode credits
Directed by Mark CendrowskiWritten by Chuck Lorre, Jim Reynolds, Steve Holland, Maria Ferrari, Eric Kaplan, Jeremy HoweGuest stars John Ross Bowie, Ellen DeGeneres, Brian Posehn, Stephen Hawking
Sheldon and Leonard try to divvy up their shared belongings, but can’t agree on anything. Also, Koothrappali and Stuart fight to be the most helpful during Bernadette’s final weeks of pregnancy.
Episode credits
Directed by Mark CendrowskiWritten by Tara Hernandez, Bill Prady, Steve Holland, David Goetsch, Steven Molaro, Maria FerrariGuest stars Kevin Sussman, Christopher Lloyd
Howard and Bernadette welcome their new baby and Sheldon and Amy celebrate Amy’s birthday.
Episode credits
Directed by Nikki LorreWritten by Chuck Lorre, Tara Hernandez, Maria Ferrari, Steve Holland, Eric Kaplan, Steven MolaroGuest stars Kevin Sussman, Vernee Watson, Pamela Adlon
Sheldon and Amy visit Leonard and Penny for the first time since the holidays and share details about their terrible trip to Texas.
Episode credits
Directed by Mark CendrowskiWritten by Steven Molaro, Tara Hernandez, Steve Holland, Eric Kaplan, Maria Ferrari, Jeremy HoweGuest stars Kevin Sussman, Laurie Metcalf, Pamela Adlon
When Penny feels that Leonard is taking her for granted, she decides to go on a spa weekend with Amy. Also, Wolowitz and Koothrappali try to fix a squeaky floorboard in the baby’s room.
Episode credits
Directed by Mark CendrowskiWritten by Chuck Lorre, Steve Holland, Anthony Del Broccolo, David Goetsch, Steven Molaro, Saladin K. Patterson
Sheldon beta-tests an MIT invention after hearing it can help him read people’s emotions. Also, Leonard can’t hide his feelings when Penny announces her brother is coming to town, and Raj invites his ex-girlfriends over to give him dating advice.
Episode credits
Directed by Mark CendrowskiWritten by Chuck Lorre, Steven Molaro, Jim Reynolds, Steve Holland, Eric Kaplan, Saladin K. PattersonGuest stars Laura Spencer, Kate Micucci, Alessandra Torresani, Katie Leclerc
Leonard and Wolowitz try to distract Sheldon when he slows the progress of their guidance system. Also, Penny and Amy take Bernadette out for the night, leaving Raj and Stuart to care for baby Halley.
Episode credits
Directed by Mark CendrowskiWritten by Chuck Lorre, Tara Hernandez, Steve Holland, Jim Reynolds, Steven Molaro, Maria FerrariGuest stars Kevin Sussman, Dean Norris, Pamela Adlon
Sheldon and Amy have their first fight since moving in together, and Koothrappali is shocked at the realities of financial independence when he stops receiving support from his father.
Episode credits
Directed by Mark CendrowskiWritten by Jim Reynolds, Steve Holland, Maria Ferrari, Eric Kaplan, Jeremy Howe, Steven MolaroGuest stars Brian George, Brian Posehn
With Koothrappali cut off from his father’s fortune, he appoints Sheldon to help him get out of debt. Also, Penny considers joining Leonard at Comic-Con.
Episode credits
Directed by Mark CendrowskiWritten by Tara Hernandez, Steve Holland, Eric Kaplan, Saladin K. Patterson, Steven Molaro, Maria FerrariGuest stars Kevin Sussman, Pamela Adlon
When Raj moves out of his apartment, Leonard and Penny offer him Sheldon's old room.
Episode credits
Directed by Mark CendrowskiWritten by Steven Molaro, Jim Reynolds, Steve Holland, Tara Hernandez, Eric Kaplan, Anthony Del BroccoloGuest stars Kevin Sussman, Christine Baranski
Leonard, Penny and Raj adjust to their new living arrangement, and Sheldon takes an interest in Amy’s work.
Episode credits
Directed by Mark CendrowskiWritten by Chuck Lorre, Tara Hernandez, Steve Holland, David Goetsch, Steven Molaro, Giuseppe GrazianoGuest stars Tiffany Daniels, Pamela Adlon, Doug Morency
Sheldon pushes himself to the limit when he collaborates on projects with Leonard and Wolowitz as well as Amy on the same day. Also, Bernadette is nearing the end of her maternity leave and must return to work.
Episode credits
Directed by Mark CendrowskiWritten by Tara Hernandez, Steve Holland, Eric Kaplan, Jeremy Howe, Steven Molaro, Maria FerrariGuest stars Kevin Sussman, Joel Murray
Howard and Bernadette have a hard time leaving Halley in day care when Bernadette returns to work. Also, Bert introduces the gang to his new girlfriend, Rebecca.
Episode credits
Directed by Mark CendrowskiWritten by Steven Molaro, Steve Holland, Tara Hernandez, Maria Ferrari, Jim Reynolds, Jeremy HoweGuest stars Kevin Sussman, April Bowlby, Brian Posehn
Leonard isn’t thrilled when Penny considers taking a new job offered by her ex-boyfriend, Zack.
Episode credits
Directed by Mark CendrowskiWritten by Tara Hernandez, Jim Reynolds, Steve Holland, David Goetsch, Eric Kaplan, Jeremy HoweGuest stars Brian Thomas Smith
After Leonard, Sheldon and Wolowitz celebrate the completion of the top secret air force project, they are met with an unpleasant surprise. Also, Amy is offered a summer position as a visiting researcher.
Episode credits
Directed by Anthony RichWritten by Chuck Lorre, Jim Reynolds, Steve Holland, Steven Molaro, Saladin K. Patterson, Alex AyersGuest stars Dean Norris, Kimberly Brooks
The gang is concerned when Sheldon’s former admirer, Dr. Ramona Nowitzki, resurfaces while Amy is away at Princeton.
Episode credits
Directed by Mark CendrowskiWritten by Steven Molaro, Steve Holland, Tara Hernandez, Eric Kaplan, Chuck Lorre, Jim ReynoldsGuest stars Kevin Sussman, Riki Lindhome
Lee Aronsohn, Jim Reynolds, Chuck Lorre, Steven Molaro, Bill Prady, Eric Kaplan, Steve Holland, David Goetsch, Tara Hernandez, Andy Gordon, Maria Ferrari, Richard A. Rosenstock, Jeremy Howe, Anthony Del Broccolo, Adam Faberman, Steven Molaro
