I have a eastern europe Samsung UE40KU6000 (UE40KU6072U) bought a couple of years ago without knowing it was of parallel import.
Using an IR audio jack I was able to access the extended service menù (for this model INFO+FACTORY when TV is on is enough).
After this I have the area selection in Option menù. Selected EU_ITALY, then factory reset, and now I have all Italian channels, channel number in expected order, and plus I added a Satellite CAM with tivuSat (italian smartcard) so I can see all the channel that are not available via antenna.
Really thank you for this useful instructions!
I think I will create a blog post on my blog in Italian, pointing to your site and wiki.