However, creator Matt Groening has defended the show, hitting back at the critics and admitting he's actually a big fan of the more recent storylines.
Groening told USA Today: "I love some of the wild stuff we've done (lately). We're now surrounded by animated shows featuring dumb, fat dads and their unruly families.
"So The Simpsons may not be the only zany bunch on the block, but the stories we are telling these days are pretty smart and pretty crazy."
He added: "The show is such a part of the pop culture landscape that whole different generations have discovered it.
"The way things are streamed these days you can access the entire history of the show anytime you want and see how it has changed over the years.
"I give a piece of advice to people who grew up with The Simpsons and maybe think it's not for them anymore. Check it out again: The satire and the quality of animation is fantastic. I'm really proud of the group's efforts."
Groening continued by admitting he wasn't bothered that viewing numbers weren't as big as they once were.
"I don't think about that stuff at all," he said. "I think about the intensity of our fans' reactions and trying to make them really happy.
"If big numbers come with it, that's great. If they don't, well, let's keep that a secret."
The Simpsons producer Matt Selman recently defended the show after a recent episode changed the timeline by showing Homer as a teenager in the '90s.
"The Simpsons is a 32-year-old series where the characters do not age, so the 'canon' must be elastic / contradictory / silly," he wrote on Twitter earlier this month. "This does not mean other beloved classic @TheSimpsons flashback shows didn't happen.
"None of this happened. It's all made up. Every episode is its own Groundhog Day that only has make sense for that story (if that).
"There is no @TheSimpsons 'canon' or 'non-canon.' There are only stories. If all these crazy things really happened to one family the characters would be in a mental hospital."
The Simpsons is now available to watch on Disney+ in the US and the UK.
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