There’s a reason the best shows of the ’90s still get quoted and rewatched decades later. At this point, ’90s nostalgia has overtaken the best ’80s sitcoms, with a new wave of fans discovering the decade’s greatest hits through streaming platforms. Whether animated or live-action, sitcom or supernatural drama, these series shaped how we laugh, think, and binge today. Part of their staying power comes from how effortlessly these creators adapted to shifts in audience taste. Even the most underrated ’90s shows experimented with format, pushed boundaries in writing, and created characters who felt like our best friends, mentors, or...