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Jimmy Doherty, Kate Quilton and Matt Tebbutt present some of their favourite investigations, including the mystery ingredient that makes icing sugar so light, fluffy and powdery

Laura Hamilton and Ben Hillman help Emma, who wants a new home for her and her three children in West Sussex, and also a bolt-hole in Languedoc-Roussillon in the south of France

Laura Hamilton and Jasmine Harman help Bob and Judith choose between the rugged coastline of northern Norfolk and the sunny beaches of the Costa Blanca on a budget of £230,000

Rod and Margaret from London search for a house in Dorset and a holiday home in Dordogne in France, with enough space for their six grandchildren to come and visit

Catching up with Emily and Dustin, who were struggling to secure a home in north London, and Sarah and Ian, who were fixated on finding a property in their beloved Balham

Kirstie Allsopp and Phil Spencer help buyers moving from the south the North East, including Lauren and Noel, who have their hearts set on a character property

Dog-mad executive PA Julie-Ann Rayner hosts the first dinner party in Southend-on-Sea, Essex, and hopes to impress her guests with a 'taste of the sea' menu

Grandmother Carol Dolman hosts the second dinner party in Southend-on-Sea, Essex, hoping her scallops and roast lamb and 'dress to impress' theme will win her the £1,000 prize

Science teacher Damian Loneragan hosts the third dinner party in Southend-on-Sea, Essex, where he hopes his chilli-based dishes will help him win the £1,000 prize

Steph Barrett hosts the fourth dinner party in Southend-on-Sea with a 1940s dress code to match her home, with the contestants putting their dancing shoes on to end the evening

DJ Scott Langley hosts the final party in Southend-on-Sea, and decides to take a gamble by serving fried pigeon as his main course, before the week's winner is announced

The contest begins at the Old Stables, Somerset, where Finnish-born Nina Dodd and her husband Andy welcome guests to their Scandinavian-style accommodation

The competition moves to Rigsby's Guest House in Hertfordshire, where owner Morris Cockman entertains his rivals with a visit to a local zoo

David and Erica Hensley host at the Fairway in Blackpool, where they hope to win over their guests with a spot of classic seaside entertainment

Final host of the week Robin Hughes welcomes the contestants to the converted Dent Station in the Yorkshire Dales, where he organises a butchery competition and high-end food

The contestants meet one last time to discover how much they have been paid by their fellow hoteliers, before learning who has won the competition

Scientists use isotope and DNA analysis to identify the crew of Henry VIII's flagship, many of whom were of African origin, and trace their surviving descendants

A 10-year-old is rushed to St George's by ambulance after twisting her leg while playing football. X-rays reveal that her femur is broken and she will need surgery

A 78-year-old man is rushed in with breathing difficulties, while a 75-year-old is treated after falling down a flight of stairs

Jimmy Carr hosts a festive edition of the comedy panel show, with guests Kathy Burke and Russell Howard joining Sean Lock and Jon Richardson. With Joe Lycett and Joe Wilkinson

Jon Richardson and Richard Osman take on Johnny Vegas and Sara Pascoe as Jimmy Carr hosts a special edition with a Hogmanay theme. David O'Doherty helps out in Dictionary Corner

A 10-year-old is rushed to St George's by ambulance after twisting her leg while playing football. X-rays reveal that her femur is broken and she will need surgery

A 78-year-old man is rushed in with breathing difficulties, while a 75-year-old is treated after falling down a flight of stairs

Jimmy Doherty, Kate Quilton and Matt Tebbutt revisit their favourite investigations, from tomatoes and pork scratchings, to the difference between risotto and long grain rice