WEDNESDAY

Who Do You Think You Are?

9PM, BBC1 John Simpson, whose parents’ divorce effectively estranged him from his mother’s side of the family, seeks to find out more about her and her colourful background in this emotional final edition of the series.

Science Britannica 9PM, BBC2

This week, Brian Cox pays tribute to Britons who have made key contributions to modern science – from Isaac Newton to the codebreakers of Bletchley Park – and explores the strange workings of the scientific mind.

Whitechapel

9PM, ITV The killer who’s been flaying his victims has left coded messages, but they’re not helping Chandler to find him. Then, a witness claims that the murderer is, in fact, a woman. Buchan hopes his research can point them in the right direction, but it could also put him in danger.

Grand Designs 9PM, CH4

A Marine captain who lost three limbs on duty in Afghanistan plans to build a house that will cater for his needs, without looking as though it had been designed around his disabilities. Jon is managing the project himself, and military charities are supporting it, but time is short – his partner, Becky, is expecting.

Gogglebox

10PM, CH4 The series that shows ordinary Britons in their own homes, commenting on their favourite TV programmes, returns for a new, 13-part run. You might not agree with their opinions, but it can be great fun to watch.