Surely my favorite way of watching the Simpsons is on FXX. While it also airs on Freeform, it's during the midnight hours (early mornings for me in France timezones) and all it airs other than that is movies. FXX is like a whole channel dedicated to Fox's famous toons, it's like a 24/7 Adult Swim. And they have a specific schedule of course which means i always know when the Simpsons starts.
Cable TV can't beat streaming for me. FXX takes my win!