One of the most anticipated elements of the original Roseanne series was the annual Halloween episode, in which the Conner family costumes and antics got more and more inventive over the years. In tonight’s episode, the first Halloween outing for the show’s spinoff sequel series, the tradition continues. Matthew Broderick guest stars, and shows up in costume. But if Roseanne herself is part of this show, it will be more of a haunting.