Unverified. . .

"The speaker is criticizing the fortune-teller’s prediction by comparing her crystal ball to an old television. To “re-gun” is to recondition a cathode-ray tube (CRT), an old form of television, by replacing the electron gun."

https://genius.com/Pete-atkin-beware-of-the-beautiful-stranger-lyrics

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A Magic Lantern for Seeing Events at a Distance
What’s central to Andriopoulos’s argument is that these devices included instruments specifically designed for pursuing supernatural research—for visualizing the invisible and showing the subtle forces at work in everyday life. In his words, these were “devices developed in occult research”—including “televisionlike devices”—invented in the name of spiritualism toward the end of the 19th century that later “played a constitutive role in the emergence of radio and television.”

From Etienne-Gaspard Robertson’s 1834 study of technical phantasmagoria, via Ghostly Apparitions.

https://gizmodo.com/an-occult-history-of-the-television-set-1521354168