Guy Smith

The Conspiracy Files is a British documentary television series broadcast on BBC Two, investigating various modern day conspiracy theories. So far in two series and 6 programmes, the show has investigated the theories surrounding the September 11 attacks, the Pan Am Flight 103 bomb, the Oklahoma City bombing, the 7 July 2005 London bombings and the deaths of David Kelly and Diana, Princess of Wales.

Andrew Marr's History of the World is a 2012 BBC documentary television series presented by Andrew Marr that covers 70,000 years of world history from the beginning of human civilisation, as African nomadic peoples spread out around the world and settled down to become the first farmers, up to the twentieth century.

The story of Grand Canyon's hidden slot canyons, the canyoneers who systematically explored their drainages, and the secrets hidden deep within their walls.

Robert Peston travels to China to investigate how this mighty economic giant could actually be in serious trouble. China is now the second largest economy in the world and for the last 30 years China's economy has been growing at an astonishing rate. While Britain has been in the grip of the worst recession in a generation, China's economic miracle has wowed the world. Peston reveals what has actually happened inside China since the economic collapse in the west in 2008.