E4 +1 Friday

Jake and Amy investigate a string of arson attacks connected to a famous author of crossword puzzles. Gina helps Holt improve his commissioner candidate presentation

Jake and Charles get conned into joining a pyramid scheme. US cop comedy, starring Andy Samberg and Jo Lo Truglio

Phil takes it hard when Luke gives him the cold shoulder, while Stella leaves Jay with a dilemma on his hands. Mitchell does a spot of freelance legal work for Claire

The Dunphys dress up as their role-play characters Clive and Juliana for Valentine's Day, although Claire feels a little uneasy. Gloria's sister Sonia tries to seduce Jay

Comedy clips showcasing amusing internet videos featuring sports of the lawnmower, motorcycle and bicycle variety

The stubborn owner of Italian restaurant Pantaleone's in Denver, Colorado, claims he makes the best pizza in town - but Gordon Ramsay's taste test proves the opposite

In Arvada, Colorado, Gordon Ramsay visits one of the filthiest restaurants he has ever seen, and only one of the biggest transformations of the series can save it

After ducking out of a bonding session with Grampa, a guilt-ridden Homer vows to make it up to his father by granting him his wish to visit Ireland and drop in on his favourite pub

Homer proposes to Marge for the second time when he discovers their marriage licence is invalid, but the ceremony does not proceed without a hitch

To appease his mother, who worries that he might be lonely, Sheldon employs the techniques described in a self-help book from the library in an attempt to make a friend

Meemaw comes to babysit when Sheldon's dad is rushed to the emergency room, but while she is sleeping the kids 'borrow' their grandmother's car and make their own way to hospital

Claire is determined to make up for her less-than-joyful mood at Jay and Gloria's wedding by throwing their 10th anniversary party, at which Phil plans to perform a magic trick

Jay makes a Thanksgiving toast to everyone's recent success. But it turns out that some haven't told the truth about their triumphs

Sheldon and Amy are devastated after learning from a Russian paper that Super Asymmetry has already been discovered and disproved. Bernadette wants to beat Howard in a video game

Amy and Sheldon are still feeling down about their theory being disproven, until an old VHS tape from Sheldon's past inspires the couple not to give up

Penny and Leonard organise a paintball game, which results in mayhem when Sheldon becomes jealous of Amy. Raj catches Anu with her ex-boyfriend

Penny's ex-boyfriend Zack learns he is infertile, so he asks Leonard for help. Raj attempts to make things right with his ex-fiancee Anu

When Jake's favourite pizzeria burns down, he does everything in his power to prove the owner was not to blame, while a computer virus causes chaos at the precinct

Santiago's Thanksgiving dinner party goes awry when Holt and Peralta have to leave in a hurry to catch a thief who has stolen a large sum of money

Homer becomes an author of children's books, calling on the help of an acclaimed fantasy writer. With the voices of Neil Gaiman and Andy Garcia

Krusty's future looks bleak when his TV show is cancelled, until he is reunited with the talent agent (Joan Rivers) who got him started in showbiz all those years ago

Leonard fears he is wasting his time with Penny and ends up spending the night with Leslie, while Sheldon frets over a change to his routine. Starring Johnny Galecki

Penny hosts a Halloween costume party, which proves the ideal opportunity for the boys to test their social skills. Kaley Cuoco and Johnny Galecki 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. Starring Simon Helberg and Kaley Cuoco

Raj's parents set him up on a blind date in the hope of initiating an arranged marriage, but the girl in question seems more interested in Sheldon

Nelson becomes jealous when Lisa falls for jazz pianist Brendan (guest star Ed Sheeran). Meanwhile, Bart discovers he has a love of chemistry

Fearing Doomsday is coming, Mr Burns gets Dr Frink to test everyone to see who is worth saving - and the results are a major shock to the Simpson family

Homer falls out with Marge and moves into the home of a gay couple who keep him happy by plying him with food. With the guest voice of 'Weird Al' Yankovic

Bart separates from his parents and moves into a loft apartment, where his neighbours are punk band Blink-182 and skateboarding hero Tony Hawk

Dylan tries his luck with some attractive guests, but worries his job might be in danger if he pushes too far

Tom Daley, Charlotte Church, and Gordon and Tilly Ramsay join the regular cast. Programmes appraised include The Watcher and I Can See Your Voice

In the 26th century, cyborg Alita is repaired by a kindly technician with a dark secret. Sci-fi adventure, starring Rosa Salazar and Christoph Waltz

Leonard is forced to consider whether he still has a future with Penny after he and his friends decide to spend the summer working at the North Pole

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

Fearing Doomsday is coming, Mr Burns gets Dr Frink to test everyone to see who is worth saving - and the results are a major shock to the Simpson family

Peralta invites his newly discovered half-sister Kate (New Girl star Nasim Pedrad) to come and stay with him in New York, but she turns out to ne a bit of a nightmare

Unstable former undercover cop Pimento shows up as the insurance investigator when Charles's food truck is destroyed by fire. Comedy, starring Joe Lo Truglio and Jason Mantzoukas

Beverly is pursued for a first date, while Adam questions his friendship with Dave Kim

Dylan tries his luck with some attractive guests, but worries his job might be in danger if he pushes too far

Gordon Ramsay heads to the Prohibition Grille in Everett, Washington, where belly dancer-turned-restaurateur Rishi Brown would rather perform for customers than improve her menu

The Dunphys and Manny are prompted to re-evaluate their lives after a brush with death. Comedy, starring Ty Burrell

Peralta invites his newly discovered half-sister Kate (New Girl star Nasim Pedrad) to come and stay with him in New York, but she turns out to ne a bit of a nightmare