The rhythmic lullaby of 'North Utsire, South Utsire' has been lulling the nation's insomniacs to sleep for over 90 years. It has inspired songs, poetry and imaginations across the globe - as well as providing a very real service for the nation's seafarers who might fall prey to storms and gales. In 1995, a plan to move the late-night broadcast by just 12 minutes caused a national outcry and was ultimately scrapped.