Many people recognise BBC television's test card "F". However, when it was broadcast in Scarfolk an old woman would inexplicably appear in place of the young girl as soon as parents left the room.
According to legend, if she turns to look you in the eye, you are fated to die beneath an overloaded lorry which will topple over, crushing you with its consignment of industrial safety equipment (Find out if you are cursed HERE).
Children called the woman Old Chattox and she was believed to be a 17th century witch whose spirit had been unintentionally revived and broadcast by a hilltop TV transmitting station built on the site of her execution. She frequently flouted broadcast guidelines and undermined the BBC's attempts to avoid product placement by advertising the services of a bull castrator who had been dead for nearly 400 hundred years.
Below: Photographs of Old Chattox taken by viewers between 1970 and 1978. Old Chattox wrote out demands on her blackboard, which children felt compelled to obey (top). She also drew occult or satanic symbols designed to mesmerise and indoctrinate young viewers. Some of her messages were seemingly nonsensical, though many people believed they were cryptic descriptions of future events (bottom).
i. Learn about Bubbles the clown and his range of possessed greetings cards.
ii. For more information about TV broadcast signal intrusions, see the 1975 We Watch You While You Sleep video.