23×04 – ??? | Replaceable You

BART’s (Nancy Cartwright) science fair project, a mechanical baby seal, outshines LISA’s (Yeardley Smith) brainy asteroid model and becomes a popular pet among the retirement home patrons. Meanwhile, HOMER (Dan Castellaneta) gets a new and eager assistant Roz (guest voice Lynch), but when Homer quickly loses his job to her and discovers her evil past, he and FLANDERS (Harry Shearer) team up to reveal her true dark colors.
Quelle: FOX Broadcasting Company – FOX Television Shows