This extended show came from the Notting Hill Carnival - which was smaller and a little more edgy in 1982 than it is now. The main Thameside Transmitter was on top of Trellick Tower in the middle of Notting Hill while the lower roof (still 35 stories up) was used by the police to watch what was going on in the carnival.

Of course there was no interference between the police walkie-talkies and the Thameside Radio setup but still - it must have been "interesting" for the engineers.