I found some TV airing dates for Colditz at Damien Lewis Group: Hallmark Channel is broadcasting the WWII drama. As of yet there’s still no date for the US. However it will be aired in Latin America on August 6,7 and 15. To find out times visit Hallmark Channel TV. And in the Czech Republic it will air on August 20-22. Visit their Colditz page.
Also thanks to Damien Lewis Group we have another Behind the Scenes photo.