Update 10/17/08 3:00pm: That was quick. At 2:00PM local time, WSNA became "Classic Hits 94-1 KQK" launching with Bob Seger's "Old Time Rock & Roll". Original Post 10/17/08 2:30pm: A format change is imminent at Entercom Rhythmic AC "Snap 94.1" WSNA Germantown, TN/Memphis. Call letters as of today have been changed to WKQK and a