Last week’s installment, hosted by Sarah Silverman and featuring Maroon 5, was one of the flattest SNL shows in years. Usually, after sliding off the rails like that, SNL rebounds strongly with its next episode – and it’ll probably happen again tonight, because the guest host is the slyly hilarious former repertory cast regular, Bill Hader. The musical guest is Hozier – but the person I’m most waiting to see is Hader’s Stefon.