Update 4/29/10 1:30am: The rebranding of KLOU as "Rewind 103.3" has taken place. The station's format remains Classic Hits. Original Entry 4/28/10 10:30pm: Clear Channel appears to be on the verge of making another attempt at rebranding Classic Hits 103.3 KLOU St. Louis. In 2007, the station had been relaunched as "My 103.3", but quickly