From my thread reading here, apparently a new command been added.
CLEARMYBOX takes the place of the quick double menu/reset that is needed to clear the Guide data.
WARNING: Along with the Guide data, it will also clear all your 'ToDo's until the Guide gets repopulated. And this can take 12-hours plus at least.
Remember, Red Button Reset, [RBR] is only for when the Receiver Front Panel fails to respond.