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Guy trains with the Royal Marines to see if he's tough enough to become a soldier in one of the harshest environments on Earth - at Camp Viking, 200 miles above the Arctic Circle.

Lap up the luxury and opulence of the festive season at Switzerland's Gstaad Palace hotel, as we see what it takes to provide a first-class Christmas and the ultimate five-star experience.

Behind the scenes at New York's iconic Plaza Hotel - the setting for many movies - in their busiest season, when the guests expect a five-star service like no other.

It's journey's end as Sue reaches Istanbul. She has her fortune told, falls in love with Turkish delight and explores the world's largest underground caves.

Gordon Ramsay visits struggling Greek restaurant El Greco, where the owners have secretly recruited 'Chef Mike' the microwave to help them out on a daily basis.

Gordon Ramsay visits Los Toros, a family-run Mexican restaurant in Chatsworth, California, to restyle the premises with a warm, modern colour scheme and introduce a new menu.

Jamie Oliver gets the festivities started with a sublime Christmas party menu of bramble cocktails, a stunning beef bourguignon, and a sparkling winter bombe ice cream dessert.

At Château des Vieilles Vignes, Nick and Nicole prepare for a big party... with no floor! In the Dordogne, Tim plans an unforgettable treat for his son.

Brittany hosts the week's final visit in Windermere, where the B&Bers enjoy an arty afternoon. But faces drop when it comes to the cost.

It's all about genius gift-making as four crafters create an exquisite mirror sign, a hand-whittled brooch, a chainsaw-carved partridge and a screen-printed advent calendar.

The first host, 27-year-old interior designer and gentle giant James, plans to blow his guests' minds with his spicy Mexican menu.

Grandmother Katy plans an out-of-season 'Christmas tartan' evening, complete with costumes, games and a few revelations.

Glamorous solicitor Aisling hosts an Irish party. She has a piper on her doorstep, but Katy's not a fan of her main, and the guests all struggle with 'clean eating'.

American writer Harry serves up a menu inspired by his family, while Bruce breaks his own etiquette rules, and Aisling draws Bruce's portrait with razor-sharp hilarity.

Style-conscious Bruce hosts the final night. All week he's expressed a taste for the finer things in life. With expectations high, can he put his food where his mouth is.

Glaswegian singers Gordon and Staci hope to find a holiday home in western Tenerife where they can escape their busy schedules. Will any of Lee Juggurnauth's options hit the right notes.

Tina loves France and wants to buy a holiday home she can one day retire to. Can Danni Menzies find her and her daughter Clare the perfect property on the beautiful Cote de Béziers.

David Morrissey, Lucy Beaumont, Tom Daley and Adele Roberts attempt a savoury quiche, a Technical teatime biscuit and showstopping days off in cake form.

Behind the scenes at New York's iconic Plaza Hotel - the setting for many movies - in their busiest season, when the guests expect a five-star service like no other.

Lap up the luxury and opulence of the festive season at Switzerland's Gstaad Palace hotel, as we see what it takes to provide a first-class Christmas and the ultimate five-star experience.

A woman calls the police at 4am. She's in deep trouble and many miles from home. Soon she's in a coma. Can detectives solve the mystery of how she got this way.

Guy continues his ice-cold training with the Marines, joining snipers at the side of a mountain and an amphibious raid, and learning how to fight deep behind enemy lines.

Jimmy Carr hosts as Richard Ayoade and Kemah Bob take on Jonathan Ross and Maisie Adam. With Sarah Keyworth, Susie Dent and Dr Anne-Marie Imafidon.

Sir Lenny and Alexei Sayle unpick the alternative 'punk' comedy that had an impact on them both, and Alexei's role in much-loved anarchic series The Young Ones.

Britain's favourite armchair critics review top Christmas telly - from dramas and classic movies to big traditional festive treats.

It's Asia, Meet the Rees-Moggs and How to Heat Your Home for Less This Winter on Gogglebox this time. Plus: Scam Interceptors, The Last Woodsmen and Subservience.

Gordon Ramsay visits a family-run smokehouse in Atlanta. Can Gordon help the unwell owner address his daughter's hands-off management style.

In Los Angeles, Gordon visits M'Dears Bakery and Bistro, which specialises in Southern cuisine with a Californian twist, to revamp the dated dining area and the menu.

Jamie Oliver creates a sensational alternative to the traditional Christmas dinner with an epic mixed roast, a veggie crown and a panettone dessert to make the big day even better.

Can Chris and Jolyon transform their hallway before their party at Château Trois Cloches? In the Pyrenees, Trish gets to work on her guest bedroom.

It's been a fiery week, and every last one of the B&Bers is unhappy with their feedback. So expect more fireworks when they meet up once again to find out who's won.

Four more crafters bring bundles of Yuletide joy as they create hampers filled with terrazzo decorations, festive fare and Christmassy cocktails.

Construction director David is hoping to wow his guests with an evening dedicated to his favourite kind of food - a Chinese takeaway! But can he deliver five-star fodder.

Comedian Sarah opts for an evening of hearty soul food and some blindfolded biscuit sniffing. But will a disastrous dessert and a furniture mishap ruin Sarah's gig.

Hairdresser Steph attempts to win over her guests with an evening of Spanish food. Will she be a cut above the rest, or will she be saying 'adios' to the £1000 prize.

Coffee shop worker Lisa treats her guests to a taste of Mexico, even though she's never been there! After some cheesecake confusion there's a smashing end to the evening.

Carpet and flooring specialist Chris hopes that his music-inspired nosh will have his guests dancing on the ceiling. But with mixed reviews, can Chris reach the top spot.

Lee Juggurnauth helps Liz and Ian find their dream holiday home on Greece's Mani Peninsula, where they can enjoy the sunny climate and their love of outdoor sports, for a budget of £280k.

Donna and Martin from Dagenham want to buy a holiday home on the stunning Costa Dorada in Spain, on a budget of £65,000. Will any of Jasmine Harman's properties hit the mark.

It's Christmas at Wood Green, The Animals Charity, and rescue dogs are hoping for a new home and family for keeps, from Michael the lurcher, to one-eyed Clarence and Bentley the portly pug.

A joyful look at how the team at Chatsworth House bring together the best installations of Christmases past and battle against the odds to create an enchanting Christmas.

A security guard manages a violent incident with a patient. Jack, who's 33, is rushed into A&E after falling from a horse. And seven-year-old Lyla has a finger infection.

A woman calls the police at 4am. She's in deep trouble and many miles from home. Soon she's in a coma. Can detectives solve the mystery of how she got this way.

What do Britain's sharpest armchair critics think of this week's biggest and best TV programmes.