[caid]

I have done some research with Transedit, and watched the EIT-table (Pid 18)

The channels with working characters in the EPG uses this character table: 0x05 - Latin alphabet No. 5
The channels with not working special characters uses this table: 0x10010 - West European

I have added a hex dump with 500 packages from the EIT table and an XML-file from Transedit

Working channels in the XML-file has this tag: <CharacterTable HValue="0x05" Name="Latin alphabet No. 5" />
Not working channels has this: <CharacterTable HValue="0x10010" Name="West European" />

Here is the ascii codes:
æ - E6
ø - F8
å - E5
Æ - C6
Ø - D8
Å - C5