All these Christmas shows. Really. There are too many of them. And how can you see most of them in a busy season? So why not put them all on a rolling parade and let people sit in one place while their favorite festivities roll by. Let’s call it “Let’s Roll.” Tom Proehl, organizer of “Let’s Roll!” and managing director of the Guthrie Theater, said, “The aesthetic synergies and economies of scale will benefit both audiences and arts organizations alike. Instead of deciding which of the many holiday shows to see, patrons can get the best of the Twin Cities performing arts in one sitting.”