Last 3 Episodes of Season 17

Synopses courtesy of Comics Continuum:

"Regarding Margie" on May 7

After a spring-cleaning frenzy and inhaling too many fumes, Marge suffers from retrograde amnesia. In an effort to bring back her memory, Homer takes Marge around town to re-familiarize her with her surroundings. She still has no recollection of who Homer is and puts herself back on the singles market. Will Marge ever remember her beloved Homey?

"The Monkey Suit" on May 14

Larry Hagman and Melanie Griffith guest-voice. After visiting an evolution exhibit narrated by guest voice Griffith, Flanders pushes Mayor Quimby to appoint Reverend Lovejoy as a "Morality Czar" in charge of spreading the theory of creationism. Darwin's theories are quickly outlawed, and Lisa finds herself as the only supporter of the scientific theory. After holding secret evolution classes, Lisa is arrested and retains Southern lawyer Wallace Brady (guest-voice Hagman) to help defend her beliefs in front of a judge. While Flanders is on the stand in court, Homer's antics cause him to crack under pressure and he calls Homer an ape, which leads the judge to believe Homer resembles the missing link ­ putting a monkey wrench in the prosecutors' case.

"Homer and Marge Turn a Couple Play" on May 21

In the 17th season finale, Mandy Moore and Stacy Keach guest-voice. After a passionate kiss between Marge and Homer airs on the Isotope Jumbotron, struggling second baseman Buck Mitchell turns to the couple for marital advice. The Simpsons are able to get Buck and his sexy singing wife, Fiona (guest-voice Moore), on track, and the Isotopes' season turns for the better. Things seem to be coming up aces for the Simpsons until Buck catches Homer giving Fiona a post-show neck massage, which results in both couples separating.