Check if your system has it, and if you haven't yet tuned in, give it a try. If your system hasn't picked it up yet, write a letter or make a phone call and ask for it. This is a must-have channel.
In their own words: "The Documentary Channel: A new digital cable channel dedicated to airing, exclusively, the works of the independent documentary filmmaker."
Some pretty important words there, starting with "independent". We need more of that.