So you really want to configure DVB-T card trough graph edit :)
Bagger for you...
It is just too complex to configure Network provider, IMHO, especially if you don't have too much of info to start from anyway...
So, little help in start could be this page
http://dvbviewer.com/en/index.php?page=downloads
with Transedit MMC free DVB channel research tool...
or you could try this tool
http://www.dvbdream.org/
When I succeed, I will let you know :)
