In 1971, National Lampoon founder Doug Kenney ran a feature titled "Spoilers" that revealed the endings of classic films like Citizen Kane and Psycho .
Both the Oxford English Dictionary and Cambridge University Press date the first written occurrence of the exact phrase "spoiler alert" to a 1982 Usenet post . The post was part of a discussion regarding the Star Trek film The Wrath of Khan . Spoiler AlertHD
There is ongoing debate regarding whether spoilers actually ruin the entertainment experience: In 1971, National Lampoon founder Doug Kenney ran