Alan Carr hosts a new series of the interior design challenge, in which 10 aspiring designers compete to redesign Oxfordshire show home. Michelle Ogundehin assesses their efforts, and is joined in the first episode by guest judge Laurence Llewelyn-Bowen.

The nine remaining interior designers take part in a commercial design challenge to transform London offices. Presented by Alan Carr with judge Michelle Ogundehin.

The eight remaining interior designers take part in a commercial design challenge to transform a country wedding venue in Sussex. Presented by Alan Carr with Judge Michelle Ogundehin.

The six remaining interior designers take part in a commercial design challenge to transform shop interiors. Presented by Alan Carr with Judge Michelle Ogundehin.

The five remaining interior designers are challenged to transform beach huts on the Essex coast.

The four remaining designers are challenged to transform two hair salons in Richmond, London. Presented by Alan Carr, with judge Michelle Ogundehin deciding who will go through to the next stage.

The four remaining designers take part are challenged to transform two restaurants in Hebden Bridge.

The two finalists are challenged to transform luxury holiday villas in Cornwall. Presenter Alan Carr and judge Michelle Ogundehin must decide who will be the ultimate winner.

At last it is the final and with only two designers left, there is everything to play for as two contestants go head to head to battle it out to win the prize of their lives.

Working in teams of two, the six remaining designers transform three independent shops in Harrogate.

The five remaining designers set to work on their smallest spaces to date: five 1930s beachside chalets in Eastbourne. Laurence Llewelyn-Bowen is this challenge's guest judge.

The nine designers demonstrate sustainable design by transforming shipping containers into offices in Bristol for start-ups using recycled and repurposed materials.

The three remaining interior designers take part in a commercial design challenge to transform three hair salons in Whitstable for a place in the finals.

The remaining two designers go head-to-head to win a life-changing contract to redesign a top London cocktail bar.

The four remaining interior designers take part in a commercial design challenge to transform two restaurants in Bristol, with a place in the semi-finals at stake.

The designers head to Wales as they pair up to work their magic on three Swansea cafes, with the briefs varying from 'Scandi' to 'Industrial' to 'Home from Home'.

Each designer must make over a hotel room at a five-star golf and spa resort on the banks of the River Clyde in Scotland.

Nine designers are tested on teamwork as they go wild at Chester Zoo, creating three activity centres for schoolchildren, themed around the wildlife of Brazil, India and Madagascar.

For the grande finale, the two finalists head to the magnificent Blenheim Palace in Oxfordshire to redesign holiday lodges in the grounds.

The interior designers take part in a commercial design challenge to transform holiday lodges. Presented by Fearne Cotton, with judge Michelle Ogundehin and guest judge Abigail Ahern.

Working in teams of three, the designers make over three classrooms of a children's nursery in Oxfordshire.

Aspiring interior designers take part in a commercial design challenge to redesign two show homes. Presented by Fearne Cotton, with judges Michelle Ogundehin and Matthew Willamson.

The nine remaining interior designers take part in a commercial design challenge to transform hotel rooms. Presented by Fearne Cotton, with judge Michelle Ogundehin and guest judge Jade Jagger.

The remaining eight contenders work on four dated common rooms at Gordano School in Bristol, with two to be eliminated after this challenge.

The new cohort of interior designers tackle their first challenge, demonstrating their signature style on YHA bunk rooms in the Lake District.