In this episode, Laurie Metcalf is clearly pregnant with, in what will later be written-in as her and Fred's child. Laurie the actress was 7 months pregnant with her son, Will, when this episode first aired.
The apron Roseanne wears in this episode has the same pattern as the chicken shirt worn by Roseanne, Dan, Jackie, Darlene and DJ in the last episode of season 5.