sentences:  On March 31, 2008, WYLZ changed their call letters to WLUN.With the debut of ESPN 100.9-FM, the sports-talk format returned to the Tri-Cities area for the first time since 1440 AM WMAX discontinued its simulcast of WTRX in Flint.MBF, the 501(c)(3) non-profit corporation that owns Dow Diamond, helped finance the purchase.