American Dad! first premiered on the Fox network in the United States, marking the debut of the animated sitcom created by Seth MacFarlane, Mike Barker, and Matt Weitzman.
After 11 seasons on Fox, American Dad! transitioned to cable television, with new episodes beginning to air on TBS, reflecting a significant change in the show's distribution and audience.
TBS announced the renewal of American Dad! for its 22nd season, confirming the show's continued production and longevity as an animated series.
Stan Smith begins his career at the CIA, setting the stage for his patriotic and often overzealous behavior.
Stan Smith marries Francine, starting their family and eventually leading to the birth of their children Steve and Hayley.
Roger, the alien, becomes a secret member of the Smith household after being rescued by Stan.
Steve Smith, the Smith family's teenage son, is born.
Hayley Smith, the Smith family's rebellious daughter, is born.
Stan acquires Klaus, the goldfish with a German athlete's brain, adding another quirky member to the family.
Francine begins working outside the home, balancing family life with her career.
Steve enters high school, beginning many of the series' teenage storylines.
Stan takes on his role as a CIA agent stationed in Langley Falls, leading to numerous adventures and misadventures.