Tonight's TV highlights include the concluding episode of the pioneering documentary series 7 Up, directed by Oscar-winner Asif Kapadia, which revisits its subjects now that they have turned 70. The final instalment brings a bittersweet close to a project that began in 1964, reflecting on how the participants have changed since childhood while offering some poignant moments, including one subject's unease about how he has been portrayed over the decades.

Other picks span a range of genres: BBC Two's sand-sculpting contest reaches its semi-final, BBC One's Sewing Bee crowns its champion after a series of demanding challenges, and a new documentary follows Gemma Collins through what she calls the toughest year of her life. Channel 4 examines rising support for abolishing the monarchy, while Sky Sports broadcasts England v Sri Lanka T20 cricket and a Carabao Cup tie between Liverpool and Tottenham.