Wikisimpsons - The Simpsons Wiki
- The title of the episode is a wordplay on Canada's national anthem "O Canada".
- The couch gag parodies the sets of various sitcoms: The Honeymooners, The Dick Van Dyke Show, The Brady Bunch and Cheers. It's also a repeat of "How the Test Was Won"'s.
- The Simpsons pass by:
- Homer holds a pendant for the Buffalo Bills.
- The Simpsons drive by a Kodak plant that is demolished.
- In Homer's song, a parody of "New York, New York" from the musical On the Town, he mentions that Benedict Arnold fought in Upstate New York.
- Second Best Western is a reference to Best Western hotels.
- Lisa's foster family mention the following Canadian restaurant chains: Harvey's, Swiss Chalet, Mr. Sub, Earls and Humpty's.
- The Alanis Morissette Elementary School is named after Canadian singer-songwriter Alanis Morissette.
- Students at the school can Skype with prime minister Justin Trudeau.
- Lisa asked Justin Trudeau about the SNC-Lavalin affair, which allegations started almost three months before broadcast.
- When Lisa's teacher says that they're doing a play based on a Canadian novel, Oliver asks if it's The Apprenticeship of Duddy Kravitz by Mordecai Richler.
- Marge crosses the Detroit River on Ambassador Bridge.
- The sign outside Lisa's foster home says "Give us your Alec Baldwins and Lena Dunhams."
- The Newfie sings "Islander Forever", written by Arthur O'Brien of The Navigators.
- The American Consulate says "Coming Soon - Julian Assange."
- Marge said that the last vote Homer cast was for Quisp. Homer then held up a box of the cereal.
- When Lisa imagines famous Americans, "Battle Hymn of the Republic" by Julia Ward Howe plays.
- Lisa imagines Abraham Lincoln, Dumbo, Aretha Franklin, Eleanor Roosevelt, Seabiscuit, Watson (the computer that won Jeopardy!), Judy Blume and Louis Armstrong.
- The Canadians getting Marge and Lisa across the river said that for every Martin Short there's no shortage of William Shatners.
- When Lisa returns to Springfield, "America the Beautiful" by Samuel A. Ward plays.
- Lisa's Canadian class watches an episode of The Beachcombers.
- During the end credits, "O Canada" by Calixa Lavallée plays.