On a Clear Day I Can't See My Sister/References

References/Trivia

Trivia

This is the first episode written by former Futurama writer Jeff Westbrook.
Nelson is wearing a T-shirt that says "Glaciers Suck," and says it's part of his "Things Suck" line of clothing. Bart had a similar idea in Fat Man and Little Boy.
Grampa was earlier seen working at Sprawl-Mart in the episode The Fat and the Furriest.
Gary Busey is the first celebrity this season to host a Troy McClure-esque video. A few episodes later, Robert Wagner would do the same.
Worth noting: Following someone around on whom you have a restraining order (as Lisa does to Bart) is considered abuse of the order and is grounds for having it removed.

The title is taken from the musical On a Clear Day You Can See Forever.
The episode's couch gag (which shows the house, Springfield, the continent, the planet, the Milky Way, and the universe, and finally goes back to Homer's body) spoofs the 1977 science education movie Powers of Ten. The gag was first used in The Ziff Who Came to Dinner.
Sprawl-Mart is a parody of Wal-Mart, in spite of the sign outside that says it isn't.
In one scene, a sign outside Sprawl-Mart says "Don't Watch 60 Minutes This Week," a reference to controversies involving Wal-Mart ending up being covered on 60 Minutes.
Songs/music used:
- The song playing during the "Lisa poking Bart" montage is "Don't Stand So Close to Me" by The Police.
- When Bart drops his pants to pee outdoors ("The world is my toilet now!"), the music playing is the theme from Born Free.
- During the montage showing Bart living with a pack of wild dogs, the music playing is from Vivaldi's The Four Seasons.
The wicker statue of Lisa that Bart builds is a reference to the 1973 film The Wicker Man. The 2006 remake came out about ten months after the episode first aired.
Jimbo calls the Lisa statue "The Wicker Witch of the West," referencing both The Wicker Man and The Wizard of Oz.
Bart's plea to Lisa to "Look in your heart" is a reference to the 1990 Coen Brothers film Miller's Crossing.

Samantha Stanky from Bart's Friend Falls in Love is clearly visible in the field trip however in her episode she was sent to a girls only school.
Uter is clearly visible in the field trip to Springfield Glacier; however, in the episode "The PTA Disbands" (the 21st episode from the 6th season) he is left behind on a previous field trip. In the episode "24 Minutes", he is seen stuck in a cobweb in the school air vents. In yet another episode, he is dead.