The three finalists take on a trio of evening wear challenges. The judges begin by asking the sewers to follow the most complex pattern yet, a double-breasted waistcoat.

Joe Lycett hosts the semi-final, as the four remaining sewers go global, taking on garments and techniques from around the world.

With Joe Lycett hosting, the quarter-finalists face British and Irish fabrics week. Patrick Grant and Esme Young ask the sewers to create a ‘worker's jacket’ from linen.

The fashion industry is the biggest polluter of our planet next to oil, so for the first time on The Great British Sewing Bee, it is Reduce, Reuse and Recycle Week.

The fabrics in the haberdashery go technical, as the seven remaining home sewers take on man-made fabrics designed for sport and the great outdoors.

With Joe Lycett hosting, the remaining home sewers head back in time to the 1970s, attempting to revive the glamorous, rebellious and sometimes ridiculous, style of the decade.

Joe Lycett hosts as the nine remaining home sewers return to the sewing room for children’s week. The garments might be mini but they are a mammoth challenge being fiddly to sew.

Joe Lycett presents as the sewers create a 'wiggle dress' and transform three items of denim clothing, before having to fit real live models with made-to-measure jumpsuits.