It took a third or even fourth scan, when I was finally able to tune a legal FM broadcast.
During this trip, I almost totally neglected the licenced stations (which in fact were no new to me - I use to listen to some of them at home through satellite and online) and dedicated almost my whole DX sessions to the pirates - a broadcasting phenomenon, which is even more significant and representative of London. My impression is, it is pirate radio that provides quantitative, musical and cultural wealth of London's FM band...