Hopefully it airs in the u.s. sometime.
You don't have to wait for it to be broadcasted over here. I use a program called Expat
Shield which allows you to view BBC programs through their iplayer (the iplayer also allows you to download and watch them later). Expat
Shield basically routes your internet browsing through a UK proxy server and can be shut off when not in use. It actually works quite well!
BTW, the first episode was very entertaining. Highly recommended.