George Sr learns his job is in jeopardy, while Sheldon makes friends with his dormitory neighbours. Comedy, starring Iain Armitage

Mary is given a lottery ticket, while Sheldon butts heads with Dr Lee, a new scientist in the lab. Comedy, starring Iain Armitage

Jacqueline's shoulder growth makes it difficult to do fire spinning, her favourite hobby. The mysterious bump on James' cheek bleeds often

When Annjeannette was nine, a public campaign was set up to send her to fat camp. The fat-shaming has continued, and she has struggled with food addiction

Bride Lotis knows what dress she wants and David tries to help her find it. Elsewhere, indecisive Lauren brings along her opinionated friends to help her

Bride Lynnike wants a gown to show off her curves. Samantha's mother does not want her daughter's gown to be too sexy, but her bridesmaids think otherwise

Ex-soldier Emma will not let her wheelchair stop her walking down the aisle. Meanwhile, Becki plans to elope without her family

Bride Elivia wants a showstopping dress no one has seen before. After brain surgery, Charlotte wants a fierce dress for an unconventional wedding

Buying goods from the comfort of home

Buying goods from the comfort of home

Sheldon joins Dr Linkletter and Dr Sturgis on a science road trip, while Georgie continues to lie about his age. Comedy, starring Iain Armitage

Meemaw's gambling room becomes a success, while Sheldon dips his toe in the stock market and Missy starts a business

Georgie comes clean to Mandy, while Sheldon gets an odd request from old friend Paige, and George Sr and Mary are caught in the middle of Meemaw and Dale's breakup

Georgie struggles with his big secret, Sheldon copes with the death of a hero and Missy wants to babysit

George Sr and Mary insist on meeting the new woman in Georgie's life, while Sheldon and Missy have suspicions about what is going on with their family

Missy and Sheldon learn about Georgie's pregnancy, and the whole family promises to keep it a secret

Amy has a meltdown when she feels the pressure of what it would mean for women everywhere if she were to win a Nobel Prize. Raj and Howard attempt to relive the good old days when Howard buys a scooter that looks like the one he had years earller

Raj is worried that people won't take him seriously in his own field after publishing a paper that suggests he may have discovered alien life. Penny encourages Leonard to stand up for himself when he aims to become the principal investigator on a plasma physics study

When Barry Kripke finds proof that Dr Pemberton plagiarised his thesis in college, Sheldon and Amy aren't sure whether they should turn their rival in or not. Howard is surprised but happy to learn that Bernadette wasn't the only waitress at The Cheesecake Factory who had a crush on him back in the day

Leonard is pleasantly surprised when his mother Beverly arrives and is genuinely kind to him - until he finds out the real reason for her visit. Denise and Stuart overstay their welcome at Howard and Bernadette's. Christine Baranski guest stars

Sheldon and Amy stay up all night as they await a telephone call that could bring big news from the Nobel Committee - is everything in their lives about to change?

In the last-ever episode of the US sitcom, there's an end and a beginning as the gang travel together into an uncharted future. Howard and Bernadette go away on a trip without their children for the first time, Leonard and Penny try to keep a secret, Sheldon and Amy stick together, and Raj makes a new friend

Pilot episode of the comedy about scientists and their friendship with a down-to-earth neighbour. When aspiring actress Penny moves into Leonard's apartment block, he is immediately smitten, but Sheldon warns him that he runs the risk of a broken heart if he tries to woo her. Johnny Galecki, Jim Parsons and Kaley Cuoco star

Sheldon helps Leonard drop off a parcel for Penny, but when he sees how messy her flat is, he tries to do a good deed - which is not well received. Johnny Gale, Jim Parsons and Kaley Cuoco star

Leonard is upset to learn Penny is dating someone, so his friends encourage him to seek a new romance by asking another woman out. Sara Gilbert appears alongside her Rosen co-star Johnny Gale

Sheldon is fired for being disrespectful to his boss, and explores new activities in a bid to find a purpose in life other than physics, but Leonard takes drastic action to restore him to his old self. Laurie Metcalf guest stars as Sheldon's mother

Leonard fears he is wasting his time with Penny and ends up spending the night with fellow scientist Leslie. However, he is disappointed when she later tells him she was only interested in a one-night stand. Meanwhile, Sheldon frets over a change to his hamburger routine. Starring Johnny Galecki, Kaley Cuoco and Jim Parsons

Penny hosts a Halloween costume party, which proves a worthy test for the boys' social skills. During the event, Leonard has a run-in with Penny's ex-boyfriend. Kaley Cuoco, Johnny Galecki and Simon Helberg star

Penny is forced to take Howard's place in the boys' video-game night while he is otherwise engaged with one of her friends. Simon Helberg, Kaley Cuoco and Johnny Galecki star

Raj's parents set him up on a blind date in the hope of initiating an arranged marriage, but after a promising start it becomes apparent that the girl in question is more interested in Sheldon. Meanwhile, Penny begins her new job as a bartender. Starring Kunal Nayyar and Jim Parsons

Leonard and Sheldon receive an invitation to present their research to a physics conference, but Sheldon's reluctance to pander to his peers causes conflict between the friends. An intervention by Penny makes matters worse. Johnny Galecki and Jim Parsons star

Sheldon and Leonard invent excuses to avoid having to attend Penny's performance in a production of the stage musical Rent, but maintaining the pretence makes matters increasingly complicated. Johnny Galecki, Simon Helberg and Kaley Cuoco star, with DJ Qualls