Groovy Pirate Radio Jingles - Wonderful Radio London (Big L) - 1966

Radio London - Miles of Music!
No this isn't BBC Radio London. It's Wonderful Radio London (Big L) - the ground-breaking jingle-laden pirate radio station from 1966 - the station that brought us the big name disc-jockeys including Tony Blackburn, Pete Brady, Tony Brandon, Dave Cash, Chris Denning, Pete Drummond, Kenny Everett, John Peel, Keith Skues (Cardboard Shoes), Ed Stewart (Stewpot), Norman St. John, Tommy Vance and Tony Windsor
Broadcasting on 266 metres on the medium waveband from the mv Galaxy, Big L was the first station targeted towards the British audience that aped American pop radio stations. In particular the use of American PAMS jingles gave the station a distinctive new sound.
Many of those jingles found their way (in modified form) to the new BBC Radio 1 the following year.
PAMS stood for Production, Advertising and Merchandising Service. It was based in Dallas, Texas.
Unlike in America, British radio tuning dials were marked in wavelengths for Medium Wave and Long Wave bands rather than frequencies. Therefore radio stations were often known by their wavelength (eg Fabulous 208 was Radio Luxembourg, whilst every kid knew that Radio 1 was on 247 metres - except for 202 metres in the Bournemouth, Poole and Dorset area).
Imported Japanese radio sets began to dominate the British market by the late 1970s and so the transition towards identifying radio stations by frequency began.
By contrast, FM broadcasting in Britain (known as VHF for several decades) had always been described in terms of frequencies rather than wavelengths. In the early years these were shown on the radio dial as megacycles per second (mc/s) rather than megahertz - the same thing of course.