News on casting and air date
"Following the success of its Terry Pratchett adaptations Hogfather and The Colour of Magic, Sky said Monday that David Suchet, Charles Dance and Richard Coyle will head the cast of Going Postal, a forthcoming Sky1 high-definition production of the novel from fantasy writer Pratchett's Discworld series, according to The Hollywood Reporter; the show will air on Sky1 HD and Sky1 next Easter."
Source: http://scifiwire.com/2009/07/news-briefs-dollhouse-pre.php