'Tis the 30th Season/References

Cultural references

 * The episode title is a reference to  and the season 15 episode "'Tis the Fifteenth Season".
 * In the Couch gag, Marge, Lisa, Maggie and Bart are upside down on the ceiling. When -Homer comes to attack them, Bart uses the force to grab the light saber and cut its hand. This scene is a reference to the scene in Star Wars Episode V: The Empire Strikes Back, where Luke Skywalker, to save himself from the wampa, grabs the lightsaber with the Force and cuts its hand with it, just like Bart.
 * At the church, on the way back to Springfield, the wind caused by them passing by removes the letters from the marquee, making it "New Star Wars".
 * The TV the kids want is branded GL, a parody of.
 * Bart and Lisa hum along to the carol "".
 * The song later plays during the end credits.
 * The scene where Marge and Homer plot the Black Friday at Sprawl-Mart is reminiscent of the scene of Adolf Hitler's outrage in the 2004 movie . Homer also mentions the Nazis.
 * The Sprawl-Mart employee says "Welcome to Thunderdome", a reference to .
 * Gerald Samson is seen with an Xbox Infinity console.
 * The Spucklers sing a parody of "Jingle Bells".
 * Homer suggests calling Marge an.
 * During one of the advent calendar scenes, "" plays.
 * Nine Flags Underwater is a reference to.
 * Yankees Fantasy Camp and Suck Fantasy Camp are some of the locations for the vacation, starring.
 * Kissimmee St. Nick Theme Park and Resort is a reference to the St Nicholas Anglican Church in Kissimmee, FL.
 * The scene where Homer is preparing to drug Marge is set to the song "" by.
 * Bart and Lisa sing "Silent Night" by and  to Marge.
 * Bart changes the bumper sticker for the Tennessee Titans with one for the Atlanta Falcons.
 * Thelonious Skunk is a reference to Thelonious Monk.
 * is shown creating Family Guy World, a new park theme created around Family Guy. The show's theme is heard while its creation is shown.
 * "Quagmires of the Caribbean" is a reference to the ride.
 * In the Hall of Vice Presidents, among the vice presidents are: Thomas Jefferson, Walter Mondale, Gerald Ford, Andrew Johnson, Spiro Agnew,, Theodore Roosevelt, George W. Bush, Lyndon B. Johnson, Joe Biden, , , Chester A. Arthur and Richard Nixon.
 * Homer says that according to the soundtrack of , Aaron Burr was a real jerk.
 * Bart and Milhouse use on their phones.
 * The scene of the vice presidents' heads under the cover is a reference to The Godfather's scene with the horse head under the cover.
 * As the family are going home, "Carol of the Bells" plays. It also plays during the end credits.
 * Jeanie has a "as seen on " shirt.
 * The sign at the Android's Dungeon & Baseball Card Shop says "Have a Marvel Christmas and a DC New Year".
 * The RX# on the bottom of the Snoozafed is the same as the episode's production code, YABF02.

Continuity

 * At Sprawl-Mart, Professor Frink is dressed in his Iron Man suit. ("The Kids Are All Fight")
 * A man is seen with an Orbit King rocket in Sprawl-Mart. ("She of Little Faith")
 * Principal Skinner is seen with the Inferno Buster 3000 fire truck. ("Miracle on Evergreen Terrace")

Trivia

 * This episode was the season 30 premiere, airing on Christmas eve, on December 24th, 2018 on Sky One. The season properly started on February 1st, 2019.