Carlton: I am irresistible to woman. Now I know what Tom Jones feels like.
Tom Jones is one of the most famous singers of all-time. "It's Not Unusual" is one of his most popular songs and is a favorite of Carlton's.
Goof: The door is locked when Will and Kathleen get trapped in the basement; however, when Uncle Phil and Aunt Vivian arrive, Uncle Phil simply turns the knob and opens it.
Goof: Kathleen reaches straight into the freezer and pulls out the can without looking, even though she has never seen inside before.
Goof: Philip turns the stereo in his office on even though there is no electricity.
Goof: Will says that Ashley is 9 years old in Bang The Drum, Ashley, but she's turning 12 years old in this episode.
You can see that on Jazz's wall by the door he has a picture of Hilary.
Goof: In the first shot where Will and Jazz walk in the door, Carlton or C-note as he's known in Compton, is not there. In the next shot, he comes out from the spot easily seen by the camera that was empty in the previous shot.
Goof: In the scene when Will went to tell Vivian and Phil about Carlton, Vivian took off the earring in her right ear to go get Carlton. Later in the scene, Vivian tries to go get Carlton again, and the earring is back on, but the left one is missing.
Philip calls his pool cue Lucille, which is what B.B. King calls his guitar.
Goof: In this episode, Will says he's no good at math, but in The Ethnic Tip, Vivian says that Will earned an 'A' in math.
Will: I am a sister. Sister sledge.
Sister Sledge is a 1970s American musical group comprised of four sisters whose last name is Sledge.
Title: It Had To Be You
The title is a reference to the song of the same name which was written by by Isham Jones and Gus Kahn in 1924.
When will asks Hattie if she brought the picture of Phil and the goat, it should have been a picture of the pig because that's what he really had when he was younger explain in Not With My Pig You Don't.
Grandma tells the family to be careful of the wet floor as they enter the kitchen but she dances on the same floor with Will to a Heavy D tape.
Carlton's birthday is August 4, 1974 and Will's birthday is July 3, 1973.
Goof: It's mentioned that Will was born in 1973 and Carlton was born in 1974. That doesn't fit with the time line because they don't graduate from high school until season 3.
The girl that plays Lisa also played young Hilary in Community Action.
Title: Deck the Halls
The episode title is taken from a traditional Christmas song. The music to "Deck the Halls" is believed to Welsh in origin and was reputed to have come from a tune called "Nos Galan" which dates back to the sixteenth century. In the eighteenth century, Mozart used the tune to "Deck the Halls" for a violin and piano duet. J.P. McCaskey is sometimes credited with the lyrics of "Deck the Halls," but he only edited the Franklin Square Song Collection in which the lyrics were first published. The first publication date of "Deck the Halls" is 1881. The author is unknown but the words are said to originate in the United States.
The circle that Carlton draws on the chalk board changes between shots.
The heads of the drawings that Will and Carlton do on the chalkboard change between shots.