Chalkboard: None

Couch: The way to the couch is blocked by a laser security system. The family slips through the lasers, careful not to trip any of them. Once the lasers disappear and the family is on the couch, Homer's head falls to the floor.

Lenny: Who knew saints have such fat heads?
Carl: Yeah, it's all a big scam.
Lenny: This booth?
Carl: No, religion in general.

Reverend Lovejoy: This fundraiser is close to achieving the Lord's goal. Building a taller steeple than the one on that snooty episcopal church across the street.

Susan Sarandon: (voice on the feMac) You've got mail. Unlike the prisoners at Guantánamo Bay. Get informed!

Ned: Hey Marge, I don't, I don't really want a computer. You know, all those complete strangers googling each other makes my flesh crawl.

Homer: My son's been ape-napped!
Lisa: No no, it's still kid-napped. The prefix applies to the victim.

Rod and Todd: No!
Ned: (shocked) The n-word!

This episode's title is an adaptation of the 1989 children's book written by Leslea Newman, “Heather Has Two Mommies”

The short voice message of Susan Sarandon about the trimmed Human Rights of the prisoners at Guantanamo Bay has a current event underlying. The UN Special Rapporteur Manfred Nowak with his co-authors lately released a report on the Human Rights of the prisoners.

This report could not be made about the situation of the prisoners there, because the UN officials have not granted a visit under UN Special Rapporteur terms. Those terms include being able to inspect every room and speak with the prisoners in private. Even the Chinese Government granted such access to their prisons several times.

According to the label at its cage the grown pig in the animal shelter is Babe from the children's film Babe. The movie was released in 1995 with a sequel in 1998. Russi Taylor, who voices Martin, Uter, Sheri and Terri on The Simpsons also played a voice role both movies.

Toot-Toot taking Bart up the church steeple obviously parodies King Kong. Read more about the fictional animal in the wikipedia article.

The new feMac looks just like a pink Apple iMac G4. Read more about the iMac in the wikipedia article.

Marge makes a mask of Darth Vader and says, "I'm a Star Wars." Read more about the Star Wars universe in the wikipedia article.

Bart and Lisa play Jousting, a famous competition between knights in the Late Middle Ages. Read more about the medieval game in the wilipedia article.

The Ode to Joy plays when Rod and Todd first use the the unconstrained seesaw. The Ode to Joy is originally a poem by Friedrich Schiller, but best known with the musical setting of Ludwig van Beethoven.

Bart refers to the Flanders boys as Nimrod and Nimtodd. Nimtodd actually means nothing, but Nimrod was presumably the first human, who claimed power among other people, and the one who initiated the building of the Tower of Babel. Read more about the Mesopotamian king in the wikipedia article.

Homer asks Lisa if there will be Gremlins from the Gremlins movie in the animal shelter for retired animal actors and that he's going to get them wet. If a Mogwai got wet in the movie it would spawn evil manipulators called Gremlins. Read more about the movie from 1984 in the wikipedia article.

Huggy Bear, who's actually not an animal, from the legendary late 70s TV show Starsky & Hutch is shown imprisoned in the animal shelter.

Ned utters "call me Ned Zeppelin", which is a take on the band name Led Zeppelin. Read more the British rock band in the wikipedia article.

Todd mentioned that he played Christian Clue where he hurt himself with a knife. Clue or Cluedo is a crime fiction board game, played by 3 to 6 players. Read more about the board game in the wikipedia article.

The Mt. Verticool and Rod's animated fear of great heights is a parody on Hitchcock's movie Vertigo from 1985. Read more about the movie on the wikipedia article.

Homer's mentioning of his (animal) experiments refers to animal testing, where animals have to live in pain. Read more about this research method in the wikipedia article.

Kent Brockman mentions the Hamburglar and Mayor McCheese in a news flash. Both are advertising characters for McDonald's. Read more about McDonaldland characters in the wikipedia article.

Krusty tells Sideshow Mel to hire Tom Green, a Canadian comedian and television host. Read more about the entertainer in the wikipedia article.

Homer's head cut-off in the Couch Gag is a parody of a scene in the first movie version of the video game series Resident Evil. Read more about the 2002 movie in the wikipedia article.