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58 minutes
First broadcast: on BBC FourLatest broadcast: on BBC Four
Available for 11 months
Paul Rose tells the story of the USS Squalus, stranded on the bottom of the Atlantic in 1939 and the first time anyone had been saved from a stricken submarine. Show more
A group of men follow in the footsteps of their ancestors who, under the leadership of Ernest Shackleton, tried to become the first men to reach the South Pole. Show more
1 hour
First broadcast: on BBC Two ScotlandLatest broadcast: on BBC One Wales
Food writer Stefan Gates sets out to uncover the truth about those notorious food additives, E numbers. His journey begins with the E number colours. Show more
1 hour
First broadcast: on BBC Two ScotlandLatest broadcast: on BBC One Scotland
Stefan Gates uncovers the truth about food additives. He looks at preservatives, discovering one that keeps bacon free of deadly bacteria and one that's an explosive. Show more
Romesh Ranganathan hangs out in a Pie and Mash Shop and hits-up Rachel Parris.
Jim Al-Khalili uncovers the fascinating story of the smartphone. It would take a Hollywood star, a missed vacation and a Roman siege to give us the device that defines our age. Show more
Jim Al-Khalili explores the fascinating story of the robot, from ancient times to the modern day - asking if robots will one day take over the world. Show more
