Not the craziest week in TV debuts, but a lot goes down this Thursday, as Syfy premieres a new late night lineup and FX debuts a new series from Denis Leary about an aging rock 'n' roll "never been" who sees a new young singer as his ticket to the limelight. In Sex&Drugs&Rock&Roll, Leary plays Johnny Rock, lead singer of a legendary early '90s New York band called The Heathens.