with a 722k and later with a 20.0 and later remote you hold down the (0) Key for a few seconds while pointed at the reciever which activates the system wizard and you then preform a full system backup into the remote control. It only saves remote settings and timers but that is actually quite a bit of info that you don't have to then put back into the new machine if yours ever fails. The tech should know how to run the restore process mine did but not all of them will so you should stay proficient on how to do this. One other thing you need to remember is, which remote you use to back things up into. (one last thing this must be done while pointed directly at the receivers ir window you cannot do it from another room you have to be standing within about 5 feet of the box with a clear line of sight between you and the box.)