Update 4/8: After testing their signal for the past week, 107.3 K297BI/96.3 KIHT-HD2 offically debuted the "RAF-STL" Classical format at 10am this morning with Beethoven's Ninth Symphony. The press release announcing the launch of the station follows: With the flip of a switch, at precisely 10:00 a.m. CST on April 8, 2013, classical music and