The Great British Sewing Bee, 9pm, BBC2

FOR the semi-final, the four remaining stitchers (including g architectural firm director Leah, pictured) must follow an intricate pattern for Indian t trousers, transform a West African tunic and create a made-to-measure Japanese origami top. It’s a globetrotting challenge that will see just three o of them going through to n next week’s grand final.