According to Simpsons Wiki, In 25 Seasons, she's appeared in 56 episodes
429 at the start of 2009449 by the end of 2009
there are a total of eight seasons. It ended in 2009
Predicting the future is not possible, but as it stands now (in October 2017) if they don't get renewed again The Simpsons will last for 30 seasons, ending in May 2019 & Family Guy will last for 16 seasons ending in May 2018.
Answers: Currently, Seasons One and Two are out on DVD(As of October 2009).
As of June 2015, 25 seasons have aired.
According to Simpsons Wiki, In 25 Seasons, she's appeared in 56 episodes
As of November 2014, that would be 22.
429 at the start of 2009449 by the end of 2009
there are a total of eight seasons. It ended in 2009
21 seasons ago
Predicting the future is not possible, but as it stands now (in October 2017) if they don't get renewed again The Simpsons will last for 30 seasons, ending in May 2019 & Family Guy will last for 16 seasons ending in May 2018.
Presuming you mean released on DVD, as of 02|2013, Seasons 1 through 15 & 20.
What exactly are you asking? You want to know the sources that indicate how many seasons have aired? 28 seasons have aired, with the show being renewed through its 30th... as for sources that state that, there are several to choose from. Wikipedia. FOX. SimpsonsWiki.
After 29 seasons and 630+ episodes there are far too many to list and for you to read. Please see the provided link for a list of writers.
season 21 is 2009-2010
Answers: Currently, Seasons One and Two are out on DVD(As of October 2009).