I have dishnetwork and a PVR 508. I hear from both fronts (D* and E*) that all these providers are overcompressing the hell out of their signals to squeeze more out of their satellites. Why don't these providers just decide to eventually phase in some MPEG4 standard for everything? that way, they have space for HDTV, more local channels, and higher quality without the expensive of putting up more billion dollar satellites? Will MPEG4 -ever- happen? Are there any ways to swap out decoder chips in any of the units to newer ones? or would all receivers have to be completely replaced? do any current dish or directv higher end receivers feature upgradeable codecs or swappable decoder chips? I bet with MPEG4 you could more than quadruple satellite capacity overnight.