HOW THINGS WORK The Secret Genius Of Modern Life, 8pm, BBC2

HANNAH FRY (pictured), the woman who has made maths cool, has long been in the business of helping us understand numbers and the meaningful patterns they form — in one-off documentaries or her long-running Radio 4 show The Curious Cases Of Rutherford & Fry, with Adam Rutherford. As the presenter of this new series, she will be demonstrating how the little things we take for granted in our day-to-day lives are driven by precision tools of data and technical wizardry. She starts with the power behind plastic, the debit or credit payment cards that instantly relieve you of your hard-earned cash. If that sounds dull as dishwater, prepare to be amazed. Not only can Hannah make the history and technology of such things accessible, she can also make them positively fascinating.