The Simpson family consists of fictional characters featured in the animated television series "The Simpsons". The Simpsons are a nuclear family consisting of married couple Homer and Marge and their three children Bart, Lisa, and Maggie. They live at 742 Evergreen Terrace in the fictional town of Springfield, United States, and they were created by cartoonist Matt Groening, who conceived the characters after his own family members, substituting "Bart" for his own name. The family debuted on Fox on April 19, 1987 in "The Tracey Ullman Show" short "Good Night" and were later spun off into their own series, which debuted on Fox in the U.S. on December 17, 1989.