SEASON PREMIERE: Welcome back, Mr. Oliver. In his first season with his own show on HBO, Oliver carved out a different territory for himself in the satirical current-events comedy landscape – burrowing deeply into one topic instead of just peppering shots in every direction. And his HBO on-air promos for Season 2 have been so smart and so knowingly self-mocking, that it bodes well for this second-season batch, as well.