BBCAmerica has been pushing it big time, to the point of putting little animated commercials for it at the bottom of the screen while other shows are being aired. They were showing it after Murphy's Law on their Monday night mysteries, and it was really disconcerting when the animation would break in during the middle of a show as dark as Murphy's Law.
From what I've seen, the show takes place in casinos in Blackpool, and characters break into song and dance in the middle of the drama, usually lip synching things like "The Boy with the Thorn in His Side" and "I'm Gonna Make You Love Me."
Very silly.