Radio 1 's 's chart show is moving to Fridays for the first time in its history . Official countdown of UK 's top singles began with Alan Freeman in 1967 . Show became a Sunday evening 'teatime tradition ' as fans followed charts . Will switch to a Friday evening slot from July as industry becomes digital . BBC Greg James will present the top 40 which will be an hour shorter . Move follows a change in record industry of the global new release day . Station controller Ben Cooper said the chart show had to 'adapt or die '
BBC 's chart show is moving to Fridays for the first time in its history . Official countdown of UK 's top singles began with Alan Freeman in 1967 . Show became a Sunday evening 'teatime tradition ' as fans followed charts . Will switch to a Friday evening slot from July as industry becomes digital . Radio 1 's Greg James will present the top 40 which will be an hour shorter . Move follows a change in record industry of the global new release day . Station controller Ben Cooper said the chart show had to 'adapt or die '