Description by couchtuner for The Simpsons Season 23 Episode 4 : Bart’s science fair project, a mechanical baby seal, outshines Lisa’s brainy asteroid model and becomes a popular pet among the retirement home patrons. Meanwhile, Homer gets a new and eager assistant Roz (guest voice Jane Lynch), but when Homer quickly loses his job to her and discovers her evil past, he and Ned team up to reveal her true dark colors
Watch It Here : The Simpsons Season 23 Episode 4 Replaceable You