Heart Four Counties is a local radio station owned and operated by Global Radio as part of the Heart network. It broadcasts to Bedfordshire, Buckinghamshire, Hertfordshire and Northamptonshire. The station launched on Friday 16 July 2010 as a result of a merger between Heart Milton Keynes (formerly Horizon Radio), Heart Northants (formerly Northants 96), Heart Dunstable (formerly 97.6 Chiltern FM) and Heart Bedford (formerly 96.9 Chiltern Radio).