foxsat will work as Repassac pointed out, hdrfoxt2…
Menu > Settings > System > System Information > Red > Green > Yellow > Blue > Green > Yellow > Blue
does have a country setting for Belgium, not too sure about operator settings – trial and error, you may find the EPG only works for now and next programmes, I really don’t know, and a lot of flats and even towns have cable only. You may need a different aerial lead (female to male rather than male to male), but that shouldn’t be a problem, neither is voltage etc, you’ll be able to playback okay.
I’ve taken freeview boxes over to Germany in the past and not had any problems. I don’t think you’ll know for sure until you’re out there.
Let us know how you get on, cable/aerial, which operator and whether EPG populates properly