Dishstore.net rocks because they provide great products, prices, and best of all support! I have sent them e-mails with questions and they promply reply. Great Service!
On my brothers system (625), he had one line running to the DVR. The diplexed that one line. The ant. port went to the 21-69 out and the sat wint into a seperator. Then outside, he diplexed the like to go to the second TV.