I moved into a condo with centralized SD Astro dish. Previously I subscribed to Astro Byond PVR using my own black Astro Byond HD dish. However since this condo do not have a HD dish, I can no longer get the usual HD channels like HBO HD except for the newer HD channels like Fox HD, Fox Family HD, Fox Action HD which I can view in HD. Anyone have the same experience on why the Fox HD channels can be viewed using a centralized non-HD Astro dish system?