Horizon: The President's Guide to Science is no longer available. Programmes are available for a limited number of days after broadcast. Why?
A portrait of the lives of black bears in northern Minnesota, with biologist Lyn... (R)
A young girl's life is threatened when she's caught out in a ferocious storm.
Mark Horton travels on Brunel's Great Western Railway along the stunning coast o... (R)
The Second World War freedom fighters who risked everything running the 'Shetland B...
Jonathan starts this journey in a mine and then makes his way down to Ekaterinbu... (R)
Iain interviews some of the key global warming sceptics, part of the 1990s count... (R)
A mix of searing temperatures and high winds combine to fan a forest fire in Dorset...
The team head to Adam Henson's farm for Christmas dinner.
Dr Iain Stewart looks at how scientists can predict what changes global warming... (R)
It's a lucky escape for a woman when a freak tornado rips through her home and comm...
Miranda Krestovnikoff searches for the biggest sharks in British waters. (R)
Euan follows the journey of the famous Edinburgh Christmas tree.
The consumer technology show sneaks a look behind Avatar's eyepopping special effec...
The Coast experts journey along the stunning south coast of England. (R)
Ben Fogle visits Chapletown, the Caledonian Forest, Cairngorm and Newtownmore.
Neil Oliver visits Whitstable and ventures offshore to the remarkable Red Sands... (R)
Neil Oliver visits the hidden remains of a fortress built by Henry VIII on Cap G... (R)