E4 Extra Saturday

The CEO of a California ski resort goes undercover to learn more about his company's working practices as he prepares to merge an existing operation with a new acquisition

Impulsive groom Steve plans a cliff-hanger of a Wild West wedding, but demanding bride-to-be Leona dreams of a more sophisticated do

Jessica is superstitious when she sells a supposedly haunted house. Elsewhere, Eddie decides to run for school president

Louis and Jessica get pressured into volunteering at the kids' schools, and Emery and Evan see a side of their mother they wish they hadn't when producing the school play

The Huangs receive an invitation to join the local country club, but Jessica believes they have become 'too American' and need to reconnect with Chinese culture

Louis attends a business convention and decides to invite the whole family along to turn it into a holiday

Louis decides he wants a daughter, and Eddie locks himself in his room after finding out that his older girl crush has fallen for somebody else

Ted searches for the best New Year's Eve party in New York, and hires a limo so he and his friends can travel to five different celebrations on the same night

Ted invites Robin to be his date at a friend's wedding, but neglects to tell the happy couple he is bringing a guest and exercises all his ingenuity to get her into the event

Ted believes he has met his perfect woman at a wedding, but they do not exchange surnames or numbers, making it difficult for him to track her down. Comedy, starring Josh Radnor

Barney receives a video from the former girlfriend who broke his heart, but refuses to tell the gang about the relationship unless everyone reveals their most embarrassing moments

Victoria is offered a culinary scholarship in Germany, while Barney persuades Marshall to smarten up his appearance and sends him to see his tailor

Gangster Seamus Murphy asks Holt to pay back the favour he owes for getting Diaz and Peralta out of jail, so the cops try to help the captain keep his end of the bargain

After Seamus Murphy threatens Kevin, Holt devises an elaborate plan to hide him in a safe house with Jake as his guard, while the rest of the team try to bring the gangster down

Jake is called in to negotiate a hostage situation with a jewel thief, only to run into a familiar face. Cop comedy, starring Andy Samberg

Jake and Holt spend all night trying to get a confession out of a suspect. Cop comedy, starring Andy Samberg and Andre Braugher

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

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

Charles plans a scavenger hunt for Jake's stag party. Amy's hen party is thrown into disarray when it turns out she once slept with a member of the band booked for the wedding

The squad members fear for Rosa's safety when she responds to an active shooter alert, but they are instructed to stay back and are powerless to help

Chef Gordon Ramsay comes to the aid of Lela's, a Pomona, California, restaurant that is on the brink of closure thanks to an inexperienced owner and an arrogant chef

The chef tries to revive a pizzeria in Burbank, Los Angeles, which is failing to attract customers, but matters are complicated when Gordon is thrown out of the kitchen

Leonard and Sheldon hire their favourite childhood TV science show host Professor Proton to entertain them. Raj asks Howard and Bernadette to look after his dog for the weekend

The guys invite the girls to a Dungeons and Dragons night when their trip to Vegas falls through, and Sheldon and Amy's relationship takes an unexpected turn

Leonard is offered an exciting job opportunity abroad, and while Penny tries to support his ambitions, a jealous Sheldon attempts to discourage him

Sheldon and Penny bond as they miss Leonard, while Bernadette and Amy visit an out-of-town conference and prove popular at the hotel bar

Leonard returns from his research expedition and undergoes an adjustment period with Sheldon, and Howard experiences an unusual emotional reaction

The friends compete in a scavenger hunt designed by Raj to test their scientific knowledge and life skills, but it brings out the best and worst in everyone

Amy spoils one of Sheldon's favourite films by pointing out a plot hole, and Leonard realises he can manipulate Penny into feeling sorry for him. Comedy, starring Jim Parsons

Sheldon re-evaluates the time he spends with Amy when she takes a job at the university, and Howard is forced to sleep on his friend's sofa after an argument with Bernadette

Sheldon makes a major scientific breakthrough by accident, causing him to feel like a fraud, while Penny tries to be more romantic. Comedy, starring Jim Parsons

Sheldon is hurt when Professor Proton contacts Leonard for help, so he befriends TV scientist Bill Nye, and Raj gets jealous when Howard crashes a girls' night in

Rick unfreezes time so things will normalise, but warns against touching Jerry and Beth in case unstable timelines cause parallel dimensions to develop

When Rick sells a gun to an alien assassin to raise the money for a visit to a video games arcade, Morty tries to stop the hitman before he can kill his target