"In 1964 Screaming Lord Sutch set up Radio Sutch (a Pirate radio station) on one of the old towers. However, he soon became bored and handed the project to his manager Reginald Calvert, who then expanded into all five towers that were still connected and called it Radio City. [1] After Reg Calvert was killed by Oliver Smedley, his wife took over for a short time before the project was stopped and the towers again abandoned."
The whole wikipedia article is amazing, too!
http://en.wikipedia.org/wiki/Shivering_Sands_Army_Fort
"In 1964 Screaming Lord Sutch set up Radio Sutch (a Pirate radio station) on one of the old towers. However, he soon became bored and handed the project to his manager Reginald Calvert, who then expanded into all five towers that were still connected and called it Radio City. [1] After Reg Calvert was killed by Oliver Smedley, his wife took over for a short time before the project was stopped and the towers again abandoned."