Guess that I should have put this in this thread. When the installer installed my 722K, he wanted me to show him how the ext hard drive functions, since in his five years with Dish, doing mostly repairs and upgrades, I am the first customer that he has ever seen with the EXT Hard Drive hooked up to a 722 or 211. I guess 90% of the ext hard drive customers are Sat Guys members. I have 5 Ext HD. One 500GB on each 211 and 2 ext HD on my 722K. 1-500GB and 1-1TB. Couldn't live without them. I NEVER watch live tv with comercials.