you should have done a "Backup" out of the "TV Channel" section in MP Configuration.
Having done this BEFORE the upgrade allows to reimport them later on.
what you could try is using sqlite3.exe to dump the old database and insert it into the new.
Similar thing was done, when the database format changed to version 3.
you could find sqlite3.exe in the database\convert directory.
make sure that the NEW database is empty.
Delete it from the database dir and start MP config. This will re-create it.
Then do from a command prompt: