Disney Channel will present the world premiere of “Harriet the Spy: Blog Wars,” starring Jennifer Stone (“Wizards of Waverly Place”), on FRIDAY, MARCH 26 (8:00 p.m., ET/PT). Based on the popular books by Louise Fitzhugh, the movie is a contemporary twist on the iconic character, as Harriet “The Spy” Welsch (played by Stone) vies to become the official blogger of her high school class.