Buffy The Vampire Slayer

Buffy’s birthday was celebrated in the episode first aired on or near 19 January each year. In the first-year episode "I Robot, You Jane", Malcolm brings up Buffy’s school records on his computer. In the first view, we see that Buffy was born on 24 October 1980, and that she is a sophomore. The second time we see Buffy’s records, her birthday is 6 May 1979, and she is a senior. Joss Whedon finally decreed Buffy’s birthday to be 19 January 1981.