The International Violin Competition of Indianapolis is one of the most celebrated violin competitions in the world. It takes place every four years and in marked its 10th Quadrennial last year. From our arts and culture desk, WFYI’s Jill Ditmire talks with Emmy award winning producer Gary Harrison, who created the documentary, “Thank You For the Challenge,” that airs on WFYI TV 1 this Thursday at 9 p.m.