Instead of getting a digital converter box from a local retailer I was looking at getting the AM21 to integrate all the local channels thar DirecTV doesn't supply. I was looking at DirecTV's web site for info and found this info: Thin and lightweight, the DIRECTV® AM21 Off-Air Tuner is designed to fit perfectly on top of a DIRECTV Plus® HD DVR receiver (HR21) or a DIRECTV Plus® DVR (R22). Just connect it to your receiver via a USB port and enjoy your favorite digital off-air local networks. Keep in mind that you will need a DIRECTV Plus® HD DVR to view the digital off-air locals in HD. Then I found this at the and of the atricle: Note: Use of the DIRECTV® AM21 Off-Air Tuner to receive off-air HD local programming can only be accessed if the subscriber has a 5-LNB or Slimline Dish, a DIRECTV Plus® HD DVR Receiver, HD television equipment and HD Access fee Now I don't have HD access, 5lnb or slimline dish. But I DO have 3 R22's. Is it possible for me to still use the AM21?