Diane, The digibox is a very very inflexible item of equipment. While there are lots of German FTA channels out there on another satellite - forget doing anything with the digibox. If you can handle another dish and another receiver, then you can receive them - let us know and you will be advised further.
You're right, of course. The irony is that until we got S^y Digital in, I had a 90cm dish hooked to an old Pace box and was piping that signal into my computer. But when the new dish came in, the old one had to come down, as we also have a satellite broadband dish on that wall, and we were running out of wall...
I'm going to be setting that dish up again as a cheap-n-cheerful motorized installation on a pole out in the back yard, some time in the spring. Meanwhile I'll just have to do without all the good stuff at 19.2. Oh well.
When I lived in London I put up a dish with a multi-feed system directed at Astra 1 and Astra 2, connecting both LNBs to my Pace 2500. It was no problem getting all German digital channels by simply changing the plug connecting to the LNB. German channels had to be set manually though. They were and to my knowledge aren't integrated in the Sky platform.
Now I am back in Berlin and have difficulties with the British channels