nbc cancel third hour today make way new star megyn kelly source exclusively confirm page six.we tell kelly take either a.m. hour tamron hall al roker replace hoda kotb kathie lee gifford take hoda kathie lee 10 a.m. hour move a.m. hour insider said.we hear hall leave network next month contract roker continue 7-to-9 a.m. duties.kelly start september everyone leave dark one know disruption show well across board insider tell us another insider add people piss third hour beat every syndicate show across board head bite chew hire megyn nyp megyn kelly exactly get warm welcome nbc people ssed …nbc bite chew hire megyn