I just got a new HR24 and I put it in the same room as an existing HR22. For now I don't want to mess with my Harmony remote (which is working fine with the HR22), so I set up the new HR24 remote to control the HR24 using the AV1 mode. This way the two remotes will not conflict. This works fine, but I'd like to program the remote so it also controls the power on my TV and the volume on my receiver. However, it's failing when it tries to send codes to the remote to program it. For example, I select "Setup TV", select my model TV and then click OK. The screen goes black and tells me to keep the remote pointing at the receiver, but after a few seconds I get "Sorry, your remote could not be set up". Is this self-programming thing supposed to work when the remote is set to AV1 mode?