Two teams of celebrities put their collective reputations on the line in the name of charity. The Waterbabies (Reeta Chakrabarti, Tom Holland and captain Patrick Marber) compete against the Tillers (Katie Derham, Steve Pemberton and their captain, Professor Steve Jones) to draw together the connection between things which at first glance seem utterly random. So join Victoria Coren Mitchell if you want to know what connects truth, malice, cava and prose.