The BBC might not be as impartial as you believe; its been doing this for years and i'm pretty sure its been recieving sponsorship money from big buisness helping to finance documentaries.Very quick look i found the link below.
http://www.theguardian.com/media/2011/nov/15/bbc-world-news-sponsorship
Watched an interview on the BBC with the social film director Ken Loach and I think he was quite right when he said the BBC has changed its very pro big business but isn't interested in Unions you only have to watch Newsnight or Question Time to see this. Also it seems to be in this sickly love...