DVR for Dad

I helped my dad hook up a Dish 508 DVR system last night. It was an old one of mine that I didn't need since I left Dish for our local cable company this fall. I liked satellite TV, but they can't deliver local channels in High-Def yet, and I really wanted that. I had no idea what model numbers his Dish and switch were, and i was relieved to find that it just worked. He even points at the same satellites here as I did in Iowa, so after swapping out the boxes, all we had to do was call Dish and have them activate the new unit, reboot the box once, and we were in business. Now I just have to teach him how to use it. My dad is one of those people who actually reads instruction manuals, and I have no idea where the one for my 508 went, as I never read it...