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The walls are closing in on Lucas, and Dodger struggles to hide his emotions at work. Diane's concerns grow over her child's behaviour

Diane is shocked by what she finds on her son's phone, Dodger confides in Donny and a family is torn apart

Comedy clips showcasing amusing internet videos featuring sheep

At Chappy's Cajun restaurant in Nashville, Tennessee, Gordon Ramsay meets chef John Chapman, who blames the local clientele for the eatery's problems

Gordon Ramsay heads to Scottsdale, Arizona, where he meets husband-and-wife bistro owners Samy and Amy Bouzaglo, who reveal a shocking contempt for customer feedback

Santa's Little Helper goes missing and no one can understand why Homer is so laid back about the situation, so Grampa shares a story about his son's childhood pet

Homer questions the behaviour of his fellow man, prompting an invitation for him to join a survivalist group. With the guest voice of Tom Waits

After being forced to deal with a sick Sheldon, the rest of the gang try to treat themselves to a Sheldon-free weekend. Comedy, starring Johnny Galecki and Jim Parsons

Sheldon's grandmother finally comes to Pasadena to visit her favourite grandson, and ends up clashing with Amy. Comedy, guest starring June Squibb

Phil, Jay and Luke wage war against three generations of Thorpes, and Mitch and Cam ask Claire to collect Lily from school - but forget to mention the outbreak of head lice

Cam organises a school fundraiser, only for Spanish teacher Senor Kaplan to steal his thunder, while Phil is keen to impress Haley when she accompanies him to a works dinner

Penny becomes addicted to an online game based on the world of Conan the Barbarian and keeps pestering Sheldon for advice

Elated at being named one of People magazine's '30 to Watch Under 30', Raj makes a pass at Penny and his arrogance annoys his friends. Guest starring Charlie Sheen

Sheldon is forced to confront his fear of driving when both Penny and Howard refuse to give him a lift to work. Guest starring Octavia Spencer

Sheldon is flattered when a graduate student takes a shine to him, but she soon removes forces him to work on a troublesome scientific problem

The pre-teen brainbox uses statistics to help the football team, only to struggle with his new-found popularity, while Georgie feels sidelined

The young genius challenges a Nasa scientist about the space programme, and when he is dissatisfied with the answer, he begins to work on a series of equations to prove his point

Bart is less than keen when his mother signs him up for piano lessons, but changes his mind when he meets his Russian teacher, and Homer is distraught upon becoming completely bald

Friendships are tested when Carl skips town with $200,000 in winnings from a lottery ticket he bought with Homer, Moe and Lenny. Featuring music by Sigur Ros

Sheldon discovers his friends tampered with the Arctic expedition data, and Leonard gets frustrated as constant interruptions hamper his attempts to woo Penny

Sheldon and Howard stake their most coveted comic books on a bet over the species of a cricket. Jim Parsons and Simon Helberg star

Sheldon succeeds in getting Penny to conform to his standards, so Leonard adopts a similar strategy. Meanwhile, Howard and Raj meet two women at a goth nightclub

Raj accepts Sheldon's offer to work for him as he is desperate to avoid being sent back to India, and Howard starts spending more time with Leonard and Penny

A particularly bad episode of Itchy & Scratchy prompts Bart and Lisa to write their own script and send it to the show's producer

Lisa tries to convince her family of the evils of the town's annual snake-clubbing ritual. Featuring the guest voice of Barry White

Tony begins his physio sessions with Mercedes' support, and with the truth now revealed, tension rises between two residents

Frank uncovers an illegal animal smuggling ring. Comedy following the lives of animal control workers in Seattle, starring Joel McHale, Vella Lovell and Michael Rowland

Tyra Banks tricks the 14 contestants into thinking they have been rejected, when in fact they have been lured to the Top Model house

Programmes including Starstruck, The Home Edit, Made in Chelsea, Celebrity Help My House Is Haunted, SAS, This Is Going to Hurt and more are appraised

An astronaut-in-training hopes to find romance with a motoring journalist, and the restaurant also welcomes a road sweeper whose date is a mother of two

A look at back at the times the pickers got it spot on and chose their perfect date, including some of the success stories that led to romance and happy endings

The friends attend a Halloween party, Howard talks incessantly about his work at the International Space Station, and Penny and Leonard have a steamy encounter. Buzz Aldrin guests

Sheldon upsets Stephen Hawking when they play an online game, while Penny enrols in a college class but decides to keep it a secret from Leonard

Programmes including Starstruck, The Home Edit, Made in Chelsea, Celebrity Help My House Is Haunted, SAS, This Is Going to Hurt and more are appraised

Gordon Ramsay visits Yanni's in Seattle, where defiant owner Peter Avgoustiou has not allowed any changes to his menu since the Greek restaurant opened in 1984

Homer becomes a union representative at the power plant and immediately uses his new-found authority to save the company's dental plan

The pre-teen brainbox uses statistics to help the football team, only to struggle with his new-found popularity, while Georgie feels sidelined

The young genius challenges a Nasa scientist about the space programme, and when he is dissatisfied with the answer, he begins to work on a series of equations to prove his point

It is another epic Halloween full of costumes, tricks and treats for the Dunphy-Pritchett-Tucker clan as they deal with huge, unexpected news

Gemma wants another baby, but Dave worries she has forgotten how difficult a newborn is, so he enlists a robotic doll and Marty's engineering skills to remind her

Calvin's arch-rivals, the Pink Ladies, move their manicure business into the local barbershop, so Dave encourages him to make peace, until the women take a joke too far

Calvin receives an unconventional birthday gift involving his dad, so Dave suggests they spend the day celebrating in a way that honors the late Butler father