(YouTube link)
Those of us of a certain age will remember seeing this late at night when some TV stations used it as their sign off. It’s from J. Alan Wall’s TV Sign-Offs, a collection of achived footage from the days when stations went off the air at night. Afterwards, you would get either static or a test pattern (two terms that you don’t hear much anymore). Link -via Fark
I never saw any sign offs like this... this is pretty neat.