A preview of the Broadway-bound production of "Gigi," starring Vanessa Hudgens; a feature on the national tour of "Mamma Mia!"; a feature on the Junior Theater Festival, which took place in Atlanta last month; and a story on SAY, an organization that empowers kids who stutter by getting them involved with the performing arts, highlight the February 2015 episode of "On Stage Across America," the monthly theater show from Time Warner Cable and Playbill Magazine.