1984
If you’re a Mac user, or curious about the legendary “1984” ad for the introduction of the Macintosh, check out the history here. (That 60 second SuperBowl ad cost Apple \(800k, almost as much as the ad itself - \)900k.)
The ad almost didn’t run, the board of directors hated it and almost fired Chiat/Day (the famous ad agency that was doing Apple marketing then and created the ad), and Steve Wozniak almost put up half the $800k himself just to make sure it ran. Wild.