D+ change their keys regularly, at least once a day, and when the Spanish football starts I expect it to be more frequent.
The sound problems, on Premiere, are probably to do with channels that aren't currently broadcasting a second sound track, German 2, not all programmes are available with a second sound track.
If you look on the forum you will find the links section, this contains lots of links to sites with keys, but many members post links to sendspace containing the latest key changes.