The One Show: Season 2015, Episode 22

2015 - 22: 03/02/2015

Olympic champion Denise Lewis co-hosts with Matt and they're joined by comedian Ross Noble. Gyles Brandreth discovers why diamonds are forever, and Alex Riley reveals the extent of land left undeveloped by supermarkets. Plus, Marty Jopson investigates the art of noise reduction and Sam Roddick explains what it was like growing up with the founder of The Body Shop.