I have a AU9 (Ka/Ku 5LNB) dish, 2 HR-22 receivers connected to HDTV's, and 3 older MPEG-2 receivers hooked up to standard definition TV's. Directv recently offered me a free upgrade on one of my very old receivers so I accepted. They sent me a D12 receiver which does not recognize Ka satellites. Note: my previous receiver didn't recognize Ka band either. This receiver is connected to a non-HDTV. I suspect this receiver is fine since it's my understanding that the Ka satellites are used ONLY for HD programming. But it got me wondering if there is any "non-HD" programming on the Ka band? I guess I could compare the program lists from one of my HR-22 receivers to the D12, but that would take forever. It sure would be nice if there was a link where you could see which Directv channels are on which satellites/transponders. I understand this information could change often.