Graham Stewart takes a look at commercial radio in Scotland — from its beginnings forty years ago to today.
He speaks to John Myers, former chief executive of Guardian Media Group Radio, on how he took Real Radio to number one in the Scottish marketplace and how business models need to adapt in the digital age.
And media consultant Lisa Kerr, former head of strategy at Radio Centre, tells us why it's crucial the radio industry has a voice in the debate on Scottish independence.
Graham Stewart takes a look at the past , present and future of commercial radio in Scotland.
Picture: Clyde 1 FM presenter Bobby Hain in 1993