Staff in the bunker would have slept in one of the six dormitories which were capable of sleeping up to 300 personnel. Staff would sleep for six hours and then swap their bunks with another staff member for the next six. This was known as ‘Hot Beds’.

Along with military personnel there would have been a fully equipped and staffed BBC sound studio. They would have issued emergency broadcasts with all other radio and TV channels ‘off air’.

All this time personnel would never see daylight, they couldn’t even shower as uncontaminated water was too precious a commodity and remember they may have had to stay underground for over three months.