Jehalapeno: You seem to be more concerned about a major corporation's copyrights than the good the widespread distribution of these documentaries will do. Why is that? If the unauthorized downloads offend you, don't download them. Simple. You can then watch them however and whenever you can, if you choose to do so.
The way I see it, Oxygen broadcasted the shows to as wide an audience as possible. Shouldn't be a problem if people want to help them further distribute them, especially if they still include the commercials that financed them to start with. No difference between that and recording it for later viewing on your own DVR and inviting a friend over to watch it with you. Not everybody has a DVR. That said, I do agree it would be wrong to charge anyone to download or view an unauthorized copy. That would be selling a product you do not own or have any right to sell.