The family takes a trip down memory lane to see the origins of how Bart and Lisa first started fighting with each other.
Flashback episode eh? I watched the promos for this episode earlier, and as per usual, I was less than unimpressed.
In one of the promos Homer seems to hire Grandma Flanders as a babysitter, and she is remarkably more with it than when we were first graced with her presence during “Lisa’s First Word”. I am now going to go watch that episode to wash the promos out of my eyes.