SUNDAY, MARCH 21

--"THE SIMPSONS"-(8:00-8:30 PM ET/PT) CC-HDTV 720p-Dolby Digital 5.1

BART WRESTLES WITH MATTERS OF THE HEART ON AN ALL-NEW "THE SIMPSONS" SUNDAY, MARCH 21 ON FOX

Sarah Silverman and Angela Bassett Make Guest Voice Appearances

Principal Skinner announces that Mrs. Krabappel was called out of town and budget cuts dictate that, until she returns, the school's two fourth grade classes will merge. Bart reluctantly shares a desk with Nikki (guest voice Silverman) and develops a flirtatious rapport. Bart talks to Grampa about his new crush, and at Grampa's suggestion, gives Nikki a kiss. But when Nikki starts sending Bart mixed signals, he swears off women forever. Meanwhile, Lisa's classmates ostracize her for being an overachiever, and First Lady Michelle Obama (guest voice Bassett), a self-professed nerd, comes to Lisa's defense in the all-new "Stealing First Base" episode of THE SIMPSONS airing Sunday, March 21 (8:00-8:30 PM ET/PT) on FOX. (SI-2107) (TV-PG L, V)

Voice Cast: Dan Castellaneta as Homer Simpson; Julie Kavner as Marge Simpson; Nancy Cartwright as Bart Simpson; Yeardley Smith as Lisa Simpson; Hank Azaria as Moe; Harry Shearer as Skinner; Pamela Haden as Milhouse

Guest Voice Cast: Sarah Silverman as Nikki; Angela Bassett as First Lady Michelle Obama