I have the Comcast Custom DVR 3-Device remore control (with red OK button). I programmed the AUX button to control a DVD player. Therefore, the "ALL-ON" button turns on the DVR, a TV, and the DVD player. I don't want to use the "ALL-ON" button for the DVD player anymore. How do I de-program the remote control so that the AUX button no longer controls the DVD player? Thanks.