When Homer gets an old film roll developed, the family takes a trip down memory lane to see the origins of how Bart and Lisa first started fighting with each other. Blackboard: 'I will not pay my sister to do my punishment'.
FAN DESK VERDICT An all-timer. This is the episode you show someone to explain why The Simpsons matters — clear the evening and watch it properly.
The Simpsons S26E19 (“The Kids Are All Fight”) first aired on April 26, 2015.
In the US, The Simpsons season 26 — including this episode — is available on FX, Hulu, Disney+, fuboTV, DirecTV On Demand, Spectrum On Demand, YouTube TV, FOX One Amazon Channel, Hulu on Disney+, Amazon, Fandango at Home, and AppleTV.
Fans rate The Simpsons S26E19 (“The Kids Are All Fight”) 8.5/10, which puts it in the essential tier for The Simpsons.