Actually, I think this takes place right after Tony whacks Michael for dating Peggy, who had Saul's cadillac . By the time Don finds out about this at his office, Nucky was already there with Jimmy getting a hand job.
Of course I'm aware of these characters! I've seen every episode of Breaking Bad. I'm just glad it's back on; after whatshisname died, I thought maybe the network had cancelled the show, but I guess maybe they got renewed for another couple of seasons?