Channel 9410
Here is their website http://www.linktv.com/
You will see the channel numbers for Dish Network and Direct TV. They are different.
I have Dish Network and LinkTV runs some really interesting programs. That documentary will eventually repeat. I know it has repeated more than once since I first saw it about 2-3 years ago. And it runs at least a couple of days in a row when it does repeat.
toot