I really enjoyed Denis Leary's last TV series, when I finally saw it (ABC's short-lived show The Job), and I like the other dramas on FX, so this is good news, as far as I'm concerned.
Loved this show when Fox originally aired it, and was disappointed when they pulled it. The premise is a typical fish out of water one: American cop working in London. What makes it special is that it's completely insane. I'm definitely planning on following it here, including the episodes Fox never got around to showing, and I've got my fingers crossed for a DVD release.