They also believed, in 1980, that dinosaurs were being genetically engineered in the English countryside:
https://youtu.be/66nHyNnJpOk
https://reprobatepress.com/2022/04/01/jurassic-mansion-the-bbcs-maddest-april-fool-spoof/
And in 1992, that a poltergeist had possessed a famous TV presenter:
https://en.m.wikipedia.org/wiki/Ghostwatch
(That one was very controversial, and may have influenced a suicide).
The fact that people in those days trusted the BBC 100% made them easy targets.
'Vinyl is the poor man's art collection'.