o ons ▁at ▁ 1 2 : 4 5 ▁( K ST ) ▁ ▁and ▁became ▁a ▁recorded ▁broadcast . ▁Due ▁to ▁s inking ▁ratings , ▁in ▁September ▁ 2 0 0 7 , ▁the ▁show ▁returned ▁to ▁its ▁original ▁time ▁slot ▁of ▁Frid ays ▁even ings ▁at ▁ 6 : 3 0 ▁( K ST ) ▁and ▁returned ▁to ▁a ▁live ▁format . ▁The ▁charts ▁were ▁rev ived ▁as ▁category - based ▁charts . ▁ ▁In ▁January ▁ 2 0 0 8 , ▁the ▁category - based ▁charts ▁were ▁combined ▁into ▁the ▁K - Chart ▁which ▁is ▁the ▁familiar ▁count down ▁chart ▁and ▁the ▁only ▁program ▁to ▁do ▁so . ▁In ▁June ▁ 2 0 0 8 , ▁the ▁show ▁extended ▁to ▁ 7 0 ▁minutes , ▁air ing ▁from ▁ 6 : 3 0 ▁( K ST ) ▁to ▁ 7 : 4 0 ▁( K ST ) ▁making ▁it ▁the ▁longest ▁music ▁program ▁on ▁air . ▁In ▁November ▁ 2 0 0 8 , ▁as ▁part ▁of ▁the ▁Aut umn ▁format ▁changes , ▁the ▁show ▁began ▁air ing ▁from ▁ 6 : 4 0 ▁( K ST ) ▁to ▁ 8 : 0 0 ▁( K ST ) ▁for ▁ 8 0 ▁minutes . ▁In ▁May ▁ 2 0 1 0 , ▁as ▁part ▁of ▁the ▁Spring ▁format ▁changes , ▁the ▁show ▁began ▁air ing ▁from ▁ 5 : 5 0 ▁( K ST ) ▁to ▁ 7 : 1 0 ▁( K ST ) ▁for ▁ 8 0 ▁minutes