I have a 670 with a Toshiba TV, Scientific Atlanta Cable box & Onkyo receiver. I have set up the remote to watch TV. This turns everything on & sets the system to non HD settings. I would like to program the remote to switch to an HD channel & change to TV input to colorstream 1 for HD. I setup a seperate activity for this & it worked but lost channel and volume control. Is there any easier way to do this with one button control. I would then like to program the remote to switch back to non HD channels & input also. Why was channel & volume control lost? Thanks for any help.