The Simpsons: 15x13
Smart & Smarter
When Maggie does better than Lisa on an IQ test, Lisa becomes upset over no longer being the smart one and tries to lead Maggie astray.
15 - 1Treehouse of Horror XIV Nov. 02, 2003
15 - 2My Mother the Carjacker Nov. 09, 2003
15 - 3The President Wore Pearls Nov. 16, 2003
15 - 4The Regina Monologues Nov. 23, 2003
15 - 5The Fat and the Furriest Nov. 30, 2003
15 - 6Today I Am a Clown Dec. 07, 2003
15 - 7'Tis the Fifteenth Season Dec. 14, 2003
15 - 8
15 - 9I, (Annoyed Grunt)-Bot Jan. 11, 2004
15 - 10Diatribe of a Mad Housewife Jan. 25, 2004
15 - 11Margical History Tour Feb. 08, 2004
15 - 12Milhouse Doesn't Live Here Anymore Feb. 15, 2004
15 - 13Smart & Smarter Feb. 22, 2004
15 - 14The Ziff Who Came to Dinner Mar. 14, 2004
15 - 15Co-Dependents' Day Mar. 21, 2004
15 - 16The Wandering Juvie Mar. 28, 2004
15 - 17My Big Fat Geek Wedding Apr. 18, 2004
15 - 18Catch 'Em If You Can Apr. 25, 2004
15 - 19Simple Simpson May. 02, 2004
15 - 20The Way We Weren't May. 09, 2004
15 - 21Bart-Mangled Banner May. 16, 2004
15 - 22Fraudcast News May. 23, 2004