I'm assuming the recently discovered addressable (and non-addressable for that matter) discrete power codes don't work for anyone's PVR721 although I don't think anyone has yet confirmed this. Hopefully the new software release (i.e. L105), which is due by Christmas, will add this functionality.

The PVR721 hasn't had a software update in awhile and has never really had any kind of major update. I think most other receivers may have had a more recent update than the PVR721. It may be that these most recent updates added the discrete power codes and the upcoming one for the PVR721 will add them to this model. I emailed Dish last Friday to try to get some information regarding this but still haven't heard back.