Do You Know This Man? 10pm, Channel 4 Drug dealer Martin Butler turned his house into a party venue and the kids of Ruislip gravitated towards it. As a result, several of them were raped. This bleak but stirring documentary tells, in unvarnished style, the story of Laura Hughes, Lauren Preston and Mary Sharp who, decades after the offences, joined forces to bring Butler to justice. Their testimony is extraordinary: the trauma is still evident but it’s matched by their guts and resilience. Phil Harrison The Future With Hannah Fry 7.30pm, BBC Two Life, but how to live it? Hannah Fry. Photograph: BBC/TM & ©2023 Bloomberg L.P. All rights reserved In her new series, the people’s professor takes a break from maths to explore the science that could transform our future lives. First up: all things anti-ageing. In the US, we meet a biohacking influencer and a scientist making strides towards prolonging life; then it’s on to Japan, where it turns out the secret to longevity might be butterflies.…