"I Love Lisa" is the fifteenth episode of the fourth season of the American animated television series The Simpsons. It originally aired on the Fox network in the United States on February 11, 1993. In the episode, Lisa gives Ralph Wiggum a Valentine's Day card when she sees that he has not received any. Ralph misinterprets Lisa's gesture and, much to Lisa's dismay, relentlessly pursues her with affection. Lisa snaps at Ralph and angrily tells him they are not together and that she never liked him. Heartbroken, Ralph channels his feelings into his performance as George Washington in the school's President's Day pageant. After a thunderous applause from the audience, he is able to accept Lisa as just a friend.

The fourth season of the American animated television series The Simpsons originally aired on the Fox network between September 24, 1992, and May 13, 1993, beginning with "Kamp Krusty". The showrunners for the fourth production season were Al Jean and Mike Reiss, with the season being produced by Gracie Films and 20th Century Fox Television. The aired season contained two episodes which were hold-over episodes from season three, which Jean and Reiss also ran. Following the end of the production of the season, Jean, Reiss and most of the original writing staff left the show. The season was nominated for two Primetime Emmy Awards and Dan Castellaneta would win one for his performance as Homer in "Mr. Plow". The fourth season was released on DVD in Region 1 on June 15, 2004, Region 2 on August 2, 2004, and in Region 4 on August 25, 2004.