sentences:  WTCF's departure from the CHR format in 1999, however, left the door open for WIOG to move back to CHR, which it soon did.Today WIOG remains one of the most popular stations in the Tri-Cities market, though its showing in the Flint market is more modest due to competition from CHR WWCK-FM, rhythmic WRCL and active rocker WWBN.Notable DJs at WIOG at the time include Dean Myers, Scott "Shannon" Seipel, Renee Andrews, Bob Hughes, Jim Alexander, Rick Donahue, Keith Michaels, Steve Kelly and Tim Murphy.