Mike- You beat me to the fact that QAM is possible in the DirecTV world, just very expensive. Currently its only utilized in their Comm1000 series distribution for very large systems (ie. stadiums). It is no where near economical for standard residential systems. The reason QAM is the ONLY option for HD distribution via coax is because of the copyright protection it enables that ATSC/NTSC don't (required by the movie studios etc.) RVU does meet these requirements, and thus why its around. RVU takes this even further with the 2 way communication that ATSC/NTSC/QAM don't offer to my knowledge (or at least at the same level as RVU) making the Genie/Client system possible. So the best possible option at this point would be to create something similar to RVU run off coax for what you want damondlt, but why would they after putting the money into RVU? Also, you claim that you want all TVs in existence currently to be backwards compatible with your idea which would be impossible without a converter (ie. box you don't want since you want it to be straight coax to tv) to send the info back to the server since existing TVs wouldn't have the capability to send info 2 ways. So yes it is possible damondlt but there are serious financial, legal and technical reasons why it won't happen. RVU TV's will get better as the processors in the TVs become more powerful and capable of processing this function as well as all the other functions a smart TV has. Just like most electronics the first generation of a device will have some issues that future generations will (hopefully) resolve. This technology is growing as we speak with other manufacturers start offering it as well.