Specifically the Hughes HRMC-15. It says to hold the device button (eg. "TV") and Mute and release and type in the code. Well, needless to say it doesn't work, I've tried numerous devices to make sure the codes weren't just wrong. Well, either all the codes for all devices are wrong or I'm an idiot. I'm leaning towards the latter or their instructions for programming this are totally wrong. Any help would be great. I use a Harmony 680 in my main media room, this is jsut for my office.