The story about Springfield and the Simpsons family is the longest running and one of the most profitable TV shows out there.
'Fox' ordered the filming of the 27th and 28th season, which means 'The Simpsons' will have 625 episodes in total.
The first episode was broadcast in 1989.
The 'Entertainment Weekly' magazine has called the show, in 2013, "the biggest American sitcom of all time", and until now it had been awarded 31 Grammy Awards.
A feature-length movie 'The Simpsons Movie' has, in 2007, earned over half a billion dollars.