If I have all four receivers replaced, am I looking at any charges? Or, as you mentioned above, will it all be replaced for free?The HS17 route might actually be your only option. No matter which route you try really press the matter that you have the protection plan and only need the box that is not working replaced so if you have to upgrade it should be free for whatever you do. They may disagree but if you push for it you may get it all free. Just point out you are being forced into an upgrade because they won't replace the bad one with another like model (HR-24). Good luck and let us know how it goes.