Upcoming episodes, programme details and where to watch over the next seven days. All times are UK time.
Leaving the baby in daycare proves to be tough for Bernadette, and geologist Bert digs up a girlfriend, but some colleagues think she's a gold digger. S10/Ep21
Leonard isn't thrilled when Penny considers taking a new job offered by her ex-boyfriend, Zack. S10/Ep22
Leonard, Sheldon and Wolowitz celebrate the completion of their top-secret military project, until an unpleasant surprise leaves their heads spinning. S10/Ep23
Sheldon's former admirer, Dr. Ramona Nowitzki, turns up while Amy is visiting Princeton, and the gang is extremely concerned. S10/Ep24
What did she say? Amy answers Sheldon's marriage proposal. Meanwhile, Howard and Bernadette struggle with some unexpected news. S11/Ep1
Leonard's job is at stake when he gives an embarrassing radio interview which angers the university and the entire physics community. S11/Ep2
Amy tries to convince Sheldon that he has a more laid-back side, meanwhile, Raj and Stuart compete to win the heart of Bernadette's new co-worker. S11/Ep3
Wolowitz and Sheldon bond over their relationships with their disappointing fathers. And Leonard's mum finds a new best friend in Penny. S11/Ep4
Sheldon and Raj confide in Bernadette when they can't handle Amy and Howard working together. Penny and Leonard learn new ways to deal with Sheldon. S11/Ep5
Sheldon goes head-to-head with Wil Wheaton. Penny takes care of Halley when Bernadette and Howard are both on bed rest. S11/Ep6
Sheldon and Bert collaborate on a research project, while Penny and Bernadette coach Koothrappali on how to navigate his relationship with Ruchi. S11/Ep7
Leonard and Howard learn Sheldon went to work with the military. Bernadette suspects Ruchi is trying to steal her job. S11/Ep8
The guys cut Sheldon out of a potentially valuable Bitcoin investment. Also, an old video reveals a secret about Leonard and Penny's relationship. S11/Ep9
Sheldon and Amy try to eliminate stress from wedding planning using maths. Raj realises his best friend is actually hurting his confidence. S11/Ep10
Sheldon and Howard plan birthday celebrations for Amy and Halley. Leonard spirals out about his lack of accomplishments. S11/Ep11
Sheldon and Amy subject their friends to a series of experiments to choose the best man and maid of honour. And Penny reveals her true feelings. S11/Ep12
Amy and Leonard bond during a series of experiments. Bert replaces Howard in Footprints on the Moon, and Sheldon finds Penny a source of inspiration. S11/Ep13
Raj learns the woman he's dating has a very upset husband. Sheldon rents his old room for a quiet place to work. S11/Ep14
Wil Wheaton offers Amy a role on the new "Professor Proton Show," and Penny thinks the female protagonist in Leonard's novel is based on her. S11/Ep15
All Bernadette's friends try different tactics to get labour started. Amy accidentally reveals she's already chosen their son's name. S11/Ep16
Leonard tries to secure the perfect wedding venue for Sheldon and Amy. Bernadette and Howard have a hard time deciding who should go back to work. S11/Ep17
Bill Gates' company wants to partner with Penny's pharmaceutical company. Leonard, Raj and Howard do everything in their power to meet him. S11/Ep18
Leonard decides to run against Sheldon for president of the tenants' association. Bernadette encourages Howard and Raj to find the owner of a drone. S11/Ep19
A reclusive scientist invites Sheldon to his remote cabin. Penny and Bernadette improvise after Amy doesn't like the bachelorette they planned. S11/Ep20
Sheldon's comic book store experience changes when Neil Gaiman puts Stuart's store on the map. And Raj takes credit for Penny's astronomical discovery. S11/Ep21
Sheldon goes to Vegas to win money for science. Penny and Bernadette take Amy wedding dress shopping, but her choice entangles them in a web of lies. S11/Ep22