I think you missed my point. The Directv remote will control most of the name brand avr's. But the standard remotes cant actually turn on and off themselves plus 2 other device with one button press. It can control itself, a tv, and 2 other remote controlled items if it has the codeset, but the one button on/off only works for dvr and tv. You have to move the slider at the top if the remote to control the other 2 programmed components.
My Denon shuts off with the off button on the DIRECTV remote, along with the HR34 and Sammy.
I do not know if it can turn all three on, but don't want it that way any how. I often use just the TV speakers, and I am set up so the DIRECTV HDMI goes directly to the TV, with optical audio back out to the Denon.