Sue Perkins travels the US-Mexican border to discover the realities of living on either side, which Trump famously wanted to divide with a wall.
Actor Daniel Radcliffe made his screen debut in the BBC adaptation of David Copperfield before rocketing to fame as Harry Potter in the film franchise.
Among the celebrities retracing their ancestors’ steps this season are Oscar winner Kate Winslet, Harry Potter star Daniel Radcliffe, music mogul Sharon Osbourne and Jack Whitehall who will be joined by his father Michael.
The father and son double-act will unravel their family’s link to the Newport Rising of 1839, while television personality Mark Wright will explore his Spanish and Jewish heritage with the discovery that his ancestor was tortured by the Spanish Inquisition.
