Synopsis by Mark Deming
Homer Simpson (voice of Dan Castellaneta) and his wife, Marge (voice of Julie Kavner), are trying to prompt baby Maggie to say her first word one day, which leads both Bart (voice of Nancy Cartwright) and Lisa (voice of Yeardley Smith) to ask what their first words were. Bart's first word involves something neither Homer or Marge want to discuss with the kids, but they do have a story about how Lisa learned to speak. It's 1983, and Marge, mother of a bundle of manic energy called Bart, learns she's expecting another baby. Homer decides its time they move out of their crowded flat on Springfield's Lower East Side and find a house of their own, and while this puts a strain on their budget, Homer does find himself the beneficiary of a windfall of a sort -- after the Soviet Union opts to boycott the 1984 Olympic Games, thousands of game tickets at Krusty Burger unexpectedly become winners, filling the Simpson dinner table for free. Once Lisa is born, Bart becomes extremely jealous of the new arrival, and eventually decides to run away from home. Lisa, however, loves her big brother, and Bart finally warms up to her once she says her first words. "Lisa's First Word" first aired on December 3, 1992; the episode also features a brief vocal cameo from Elizabeth Taylor.