The Great Big Tiny Design Challenge with Sandi Toksvig - Episode Guide

Sandi Toksvig hosts as amateur crafters compete to transform a mini mansion. The miniaturists make busts and a Regency dining room.

The nine remaining miniaturists tackle art deco design, working against the clock to create miniature toiletries befitting a 1920s bathroom. The two winners of this first challenge will lead the next test - building the bathroom itself, which must include a bath with running water.

The eight remaining miniaturists create a Victorian nursery full of tiny toys, a pram, a puppet theatre, a rocking horse and a doll's house within the doll's house.

The seven miniaturists tackle an Elizabethan bedroom, which must contain a bed, fireplace, writing desk and a musical instrument. They also create period-appropriate accessories.

The miniaturists tackle the most ambitious build to date - a two-floored Rococo hallway including a mural, console table and chaise longue, as well as accessories for a Masquerade.

The five remaining miniaturists tackle an Edwardian games room, containing a billiard table, display cabinet and indoor plant. Plus, Sandi visits Polesden Lacey in the Surrey Hills.

The miniaturists must create a Georgian kitchen in the semi-final, spanning the width of the mini mansion. The maker of the week has an automatic place in the final.

In the final round, the miniaturists create a statement period piece before designing their dream room for the mini mansion.

In this seasonal special of The Great Big Design Challenge, eight of Britain's best miniaturists are tasked with creating a pint-sized magical Christmas retreat. Their brief is to transform an empty diorama into a wintery cabin in the woods, including mini versions of everything people love about Christmas, such as a mouth-watering festive feast, Christmas trees, a carrot for Rudolph or even presents for the judges. Interior design guru Laura Jackson and miniature sculptor Willard Wigan judge the pocket-sized proceedings, with miniature enthusiast Sandi Toksvig following the contestants' efforts.