Since I couldn't get xmltv to work properly, I have tried several other grabbers, and ended up with TVGids_to_xml. Been using it for more than six months now.
Works great. It grabs data from tvgids.nl. The resulting xml-file can be scheduled to be imported in MP or the TV-server.
You can find the latest version on http://www.cask-of-amontillado.com/Pvr_Opname_planner_Installatie.html#TVGids_to_xml
It's free.