BBC Four had a documentary on it a month ago [1], that I watched an hour ago. It's on TPB (but I don't think I can link to it here?). Make sure you have energy

BBC Four had a documentary on it a month ago [1], that I watched an hour ago. It's on TPB (but I don't think I can link to it here?). Make sure you have energy when you start watching this, the presenter is not the most enthusiastic. http://www.bbc.co.uk/programmes/b0229pbp http://www.bbc.co.uk/programmes/b0229pbp