2/4 How the steam locomotive, the internal combustion engine and the jet engine were invented. (R)
7/10 William Roache sets out to learn about his grandmother, who ran a cafe in Alton Towers. (R)
8/20 Officers provide burglars with their own rude awakening in a series of dawn raids. (R)
The team journey to Saltburn, a resort founded by the Victorian entrepreneur Henry Pease. (R)
9/13 David Attenborough looks at the evolution of mammals from reptiles 200 million years ago. (R)
24/25 Michael Portillo discovers how harsh life was for the Irish poor.
5/6 Julia Bradbury discovers a railway that ran from Weymouth across Chesil Beach to Portland. (R)
2/8 An application to erect a chicken shed faces huge local objection in the Scottish Borders.
3/4 The genesis of the machines that allow us to talk to one another across the globe.
Meet the families of two patients whose lives are hanging in the balance. (R)
1/3 The story of two boys who dream of scaling the heights of Oxbridge university politics. (R)
Friday 8 February 2013