How did things go viral back in the day without the internet? Memes and Pop culture have typically been doing it for years way before, and from underground sensations to fanboys to word of mouth, that later stayed on mailing lists and trading groups.
One prime example: The 1980s craze around a stash of tapes known simply as Shut Up, Little Man.
Compiled by two San Francisco roommates who recorded their middle aged alcoholic neighbours that fought and bickered incessantly. Watch the documentary of how things went viral back in the day, after the break. [Netflix]