The Simpsons S21E13 The Color Yellow

When Miss Hoover asks her students to research their family history, Lisa is horrified to discover that most of her ancestors were bad people - a motley crew of horse thieves and deadbeats. But while rummaging through the attic, Lisa happens upon a diary kept by her ancestor, Eliza Simpson. As Eliza's story unfolds, Lisa learns that her family was part of the Underground Railroad, a group that helped slaves escape to freedom. Eliza recounts liberating a slave named Virgil, but when Lisa presents her findings at school, some of her classmates refute it, leaving Lisa determined to exonerate her family's name.

FAN DESK VERDICT A top-shelf entry. Not quite canon, but you’ll be quoting it all week — the fan desk says don’t skip.

Dan Castellaneta AS HOMER SIMPSON Julie Kavner AS MARGE SIMPSON Yeardley Smith AS LISA SIMPSON Nancy Cartwright AS BART SIMPSON Hank Azaria AS MOE SZYSLAK Harry Shearer AS CHARLES MONTGOMERY BURNS