A ghost that you can see on tv usually on a show about realghost. The ones filming it may or may not know about bit.
It is a form of spirit photography in which a ghostly form appears. The photo may contune to develope for months or years later and a goht image may appear in a photo that has none months or years later.
The same with a film so that the producers may not know about it before it is shown on tv.
Fogey/fogy /fougi/ sl. (early 18C+, orig. Scot) old-fashioned, stuck-in-the mud.
Person with old fashioned ideas which he is unwilling to change: Come to the disco and stop being such an old fogey!
You think me an old fogeyand an old tory, his thoughtful voice said. I saw three generations since O’Connel’s time. I remember the famine. Do you know that the orange lodges agitated for repeal of the union twenty years before O’Connel did or before the prelates of your communion denounced him as a demagogue? You fenians forget some things. (James Joyce, Ulysses. PenguinBooks,1992. p. 38)