I was having a hard time getting the AUX mode on this remote to utilize all available buttons. In other words, DVD player codes do not use the Menu/Guide/Last functions, and DVR codes do not use Play/Pause/Stop functions. The code 01877 is undocumented and unlocks all functions without interfering with the cable box. I assume its a code for an older cable box that is no longer used. Now I can assign every single button to a key.   EDIT: The above code produced some strange behavior and was no