Maggie Simpson either of Groening or Csupo's initial recordings (from the show's early episodes). Other than her sucking noise, Maggie has been known to make other noises, such as occasional squeals and babbling. In most instances, these vocalisations are provided by either Nancy Cartwright or Yeardley Smith. Although she had previously spoken in fantasies and dream sequences, Maggie's first word spoken in the normal continuity of the series occurred in "Lisa's First Word", when she was voiced by Elizabeth Taylor. Although it was only one word ("Daddy"), Taylor had to record the part numerous times before the producers were satisfied. James Earl
The Simpsons (franchise) most of the first three seasons. In 1990, Bart quickly became one of the most popular characters on television in what was termed "Bartmania". On February 9, 1997, "The Simpsons" surpassed "The Flintstones" with the episode "The Itchy & Scratchy & Poochie Show" as the longest-running prime-time animated series in the United States. In 2004, "The Simpsons" replaced "The Adventures of Ozzie and Harriet" (1952 to 1966) as the longest-running sitcom (animated or live action) in the United States. In May 2007, "The Simpsons" reached their 400th episode at the end of the eighteenth season. Hallmarks of the show include