You have to tell the 625 to let you use UHF for TV1 - it's in the setup menues.
You also need to set the address to the same one as the IR TV1 address (and also use the Green TV1 key). I'm using a UHF for my TV1 so I know this works.
You also need to set the address to the same one as the IR TV1 address (and also use the Green TV1 key). I'm using a UHF for my TV1 so I know this works.