Hi. What are you talking about? If you want to improve listening you should use any opportunity to listen to. BBC, any kind of english film improves you ability to hear.
Have you ever heard of a filehosting website named Rapidshare? Get a Rapidshare account, then go to www.mytvblog.org. You'll see tons of documentaries broadcast on BBC or other channels. The links to download these films are most often placed on Rapidshare.
I teach hundreds of students every week and share information with other teachers. I found a good site on this teacher's blog. http://learnenglishlive.blogspot.com/ the link you want is on Sept 11 post. Good luck!