Half-Decent Proposal/References

Music

 * "All I Have to Do Is Dream" by The Everly Brothers: Opens this episode.
 * "Suicide Is Painless" by Johnny Mandel: Known better as main theme of the TV series M*A*S*H, it plays while Marge is leaving Homer in the helicopter to meet Artie Ziff.
 * "Disco Inferno" by The Trammps: Played at Artie's '70s style prom.
 * "Precious And Few" by Climax: Also played at the prom.
 * "Georgy Girl" by The Seekers: When Artie is advertising his invention.
 * Wooly Bully by Sam the Sham: Heard when Dr. Hibbert smashes mailboxes with his golf club.

Cultural references

 * Indecent Proposal - The film is punned in the title and referenced throughout the episode.
 * The point where Artie is flying Marge away in his helicopter, and Marge sees that Homer has written "KEEP YOUR CLOTHES ON" in rocks, is a parody of-cum-salute to the series finale of M*A*S*H, Goodbye, Farewell and Amen, in which Capt. Hawkeye Pierce, as his helicopter takes off to fly him homeward, sees that Capt. B.J. Hunnicutt has written out the word "GOODBYE" in rocks.
 * At the end of the episode, Artie's Snor-Converter alters Homer's snoring into the tune of "Sweet Dreams (Are Made of This)" by the Eurythmics. Artie supplies altered lyrics where he tells Marge that Homer is a loser and she should dump him.

Continuity

 * Homer has a Funzo to illustrate Marge kissing Artie Ziff. ("Grift of the Magi")
 * Grampa brings up Homer's 300 game. ("Hello Gutter, Hello Fadder").