It's 1 hour, and a very good doc by the way. Lots of Star Wars.
It's a Dish Network DVR and I know that they're encrypted so you can't swap the drive out and put it in your PC. With my previous Dish DVR, I was able to run a SATA cable from the drive to a USB adapter on my PC after the drive had already spun up inside the DVR, and that allowed me to use a special program for copying things over. It didn't really work for HD content though as it couldn't read anything that was MPEG4, which I'm pretty sure all Dish's HD is now. I might give it a try though just to see if it's possible.