Disney+ is now the streaming home for The Simpsons, but unfortunately, all 30 seasons are only available in a 16:9 widescreen aspect ratio, instead of the classic 4:3. This has led to some unfortunate cropping that killed visual gags. But Disney says that it plans to restore the 4:3 ratio in 2020.
“We presented “The Simpsons” in 16:9 aspect ratio at launch in order to guarantee visual quality and consistency across all 30 seasons,” Disney said in a statement (via The Verge). “Over time, Disney+ will roll out new features and additional viewing options. As part of this, in early 2020, Disney+ will make the first 19 seasons (and some episodes from Season 20) of “The Simpsons” available in their original 4:3 aspect ratio, giving subscribers a choice of how they prefer to view the popular series.”
Source: IGN.com Disney+ Will Fix The Simpsons Aspect Ratio in 2020