We’ve already covered the most unforgettable prom dresses on the big screen, but honestly, sometimes it’s those formative high school moments on the small screen that really stay with you. From Buffy’s surprisingly timeless strapless gown (post-demon hunting, no less) at Sunnydale High to Blair’s dreamy haute couture dress on Gossip Girl’s Upper East Side, we take a look at some of the seminal sartorial TV moments from the last 20 years. Sure, they’re pretty dresses, but there are real stories behind the fashion. So let’s take a trip down memory lane — prom style — shall we? It’ll be fun!