THE SIMPSONS: On a research trip, Lisa discovers that Sideshow Bob (guest voice Kelsey Grammar) is now the chief scientist at a massive chemical engineering company in the "The Man Who Grew Too Much" episode of THE SIMPSONS airing Sunday, March. 9, 2014 (8:00-8:30 PM ET/PT) on FOX. (Photo by FOX Image Collection via Getty Images)
