Sears was selling One For All URC 8820n remote for $2.99, probably still does.
It has memory for 8 devices and following instructions from Wiki I had it set up for all devices and all service menu codes available in about half an hour flat with 15 min break in between. I actually got it because they don't tell you anywhere that Harmony remote (I have 600) can accept only one pronto code, but wiki have like 4 or 5 codes. I wasted more than an hour just trying to figure it out why only one code was showing after I input all 4 of them. I don't want to bash Harmony here, but what a pain that remote is, took hours to set it up and internet access is required, of course their server broke when I was trying first time and their internet program kept crashing during install, had to use the other program which still requires internet for anything anyhow. Total waste, wish I never bought it.
8820n does everything I need it to do including Ez-adjust, inservice and factory reset and I actually used it to input other service codes into Harmony. But if you follow wiki instructions to the letter it does work for one code on harmony as well
Originally Posted by penone
Yes - you do need to log on to the harmony site in order to teach the remote to access the ez menu. I have the same remote and got this done without a hitch by following the wiki. Don't give up! The THX settings alone are worth the tiny effort it takes to access the menu.