A television show based on the fertile setting of Terry Pratchett's Ankh-Morpork city guards has been a long time coming, despite its seeming obviousness, so you'll have to forgive us if we have to keep reassuring ourselves that it's actually happening. Sir Terry himself stopped by New York Comic Con yesterday, nominally to talk about his new novel Dodger, but of course folks were interested in Discworld events, on the page or otherwise.