not to start an argument here but would you explain how I have personally done installs using a 722k and a 625 all using 20 and 21 remotes at all locations.
I was informed to state it that way. You do not get any of the 20 or 21 features of the remote with a 625. No need to upgrade to it if you can't get what the remotes are designed for. If the OP's original remotes quit working and had to get these due to not being able to get a replacement remote is a different story.
Sorry GARYS but you are wrong on this one in IR mode just about any DISH remote will work the 625. In UHF most will also work but you really need a DISH remote designed for DVRs.The 20.0 and 21.0 remotes are programmable and that is not dependent on the receiver they are used with