OK folks, I am new to Satellite - jumped from cable a few days ago. I wanted to upgrade to HDTV but it turns out that, contrary to what the installer told me, I cannot swap my DVR for an HDDVR. I currently have the DISH DVR510. I can either allow them to install an HDTV receiver, no hard drive, or I can PURCHASE an HD DVR. I called to get some info about the HD DVRs, specifically obsolescence and was told that any upgrades would be handled by "downloads" and that these receivers were "made to last many years." (Direct quote!) So I scheduled an install for the HD receiver for Sunday (for what I am guessing will be the 811). I was told I could hook up my Panasonic DVD Recorder but my research on the net tells me otherwise. And so I again contemplate purchase of an HD DVR. Now, I am reading that all of the current receivers have the MPEG2 format. But .... SOON the format will be changing over to MPEG4. So I called DISH again. Sales had no clue what I was talking about, and Tech really did not either. I was told that this was nothing to worry about. Tech advised that they would go ahead and buy now. I read more on the internet. Some are saying: do not buy now, and if you bought recently, dump your HD DVR quick. Others are saying that neither Dish nor DirectTV are not going to hand business to the cable industry so there will be some sort of upgrade program - either a swap out or direct hardware upgrade. What do you advise??? I truly cannot afford to purchase the 942 only to find it does not receive channels in the very near future. And I understand that DirectTV is going to phase in MPEG4 as early as this FALL, latest 2006. Dish has to follow if they plan on adding channels. What have other people done? What would others advise???