7/14 A young Frenchman has created Radio Kalaweit to raise awareness of the gibbons' plight. (R)
6/6 The city comes together to celebrate a 500-year-old religious festival... with a rave. (R)
3/4 Through the mountains and jungles of Colombia, Dr Jago Cooper goes in search of El Dorado. (R)
1/2 How a band of visionaries rescued narrow gauge railways that once served our industries. (R)
Howard Goodall looks at the musical innovations of the period between 1650 and 1750.
1/3 Chris Packham visits a town brought to a standstill by a swarm of flying insects. (R)
Sunday 3 February 2013