Washington U. lecturer Sean Savoie discusses lighting design with hosts Bob Wilcox and Gerry Kowarsky after Bob and Gerry review (1) JOSEPH AND THE AMAZING TECHNICOLOR DREAMCOAT, by Andrew Lloyd Webber & Tim Rice, at The Muny, (2) DREAMGIRLS, by Henry Krieger & Tom Eyen, at The Muny, (3) CORIOLANUS, by William Shakespeare, at St. Louis Shakespeare, and (4) THE WIZARD OF OZ, by L. Frank Baum, John Kane, Harold Arlen & E.Y. Harburg, at Family Musical Theatre.