Filmmaker Simon Frederick invites celebrities from sport, acting, politics, music and beyond to share their experiences for this important four-part series, with contributors including Sir Trevor McDonald, Sir Lenny Henry and Thandie Newton.

With no voiceover or archive clips, what we have is powerful firsthand stories, rich in detail, as the opening episode focuses on arriving and growing up in Britain.

As ex-footballer Les Ferdinand says, many of their parents travelled believing that the streets were paved with gold, but arrived to find racism.

One story, from actor David Harewood, is especially shocking… Black and British: A Forgotten History also begins tonight (9.00pm).