In her comments about Bill Cosby's character, Phylicia Rashad made a statement that "Clifford" was sly. However, it had been established throughout the series that Cliff's full name was Heathcliff and not Clifford.
OK, how come Carrie and Al Hanks all of a sudden decide to come out of hiding? Not to discredit Theo graduating from college, but don't you think they should also have been there at the hospital for Sondra's delivery of their great-grandchildren? Where have they been all this time?
After Cliff rings the doorbell for the final time and the peppy jazz music begins, he and Clair appear to break character. While they dance, Clair mumbles, "Is he looking at us?" most likely referring to someone offstage.
When Cliff is in the dining room with Clair, trying to come out with as many dependents to write off in their tax return as possible, from all the people he wants to claim he could only claim Vanessa and Theo. But what about Rudy? He forgets to mention her, and Rudy definitely qualified as a dependent for their tax return.
When Stanley comes into the kitchen he has three demands, on paper from Deirdre, to which Kenny must agree. After Stanley reads the demands, Kenny signs it. You can plainly see that the paper is blank the moment after he signs it and gives it back to Stanley.
During the phone call from Rudy's friend Danielle, Cliff makes references to two Beatles songs, "Michelle" and "every Little Thing."
Continuity Goof: Clair and her Hillman classmates are discussing how important a professor named Jean Capel is to Hillman College. Since Professor Capel made such an impact on every Hillman student, she should have been mentioned on "A Different World" as well as "The Cosby Show".
Is it just me or did he write "poor" before the kid said it? And it seems that the arrow disappeared and appeared again; even though Theo was standing in front of it, you could see it was not there.
When Dabnis and Vanessa first enter, Vanessa can be heard saying. "Hi, Grandpa. Hi, Rudy," when she is greeting Grandpa and Olivia.
Elvin explains that the housewarming party, which was originally to be held as his and Sondra's new home, is just for "family." Then why weren't Elvin's parents invited? And where was Grandma Anna, Grandma Carrie, Grandpa Al or Cousin Pam?
Since this episode was produced for season 7, there are many noticeable differences from season 8. For example, the kitchen has not yet been remodeled, Cliff is still wearing his Sammy Davis Jr. tribute pin, and Vanessa is off at college (Tempestt Bledsoe missed many of the episodes during season 7, and this is one of them).
In the scene when Cliff and the girls are at the table, you can see the food on the plates changing in every clip.
At the end of the episode, Rudy calls Kenny "Bud" for the first time in three years.
Rudy and Stanley met at the community center, so how is it that they are in the same Social Studies class and working on a project for school together? Did Stanley suddenly transfer into Rudy and Kenny's school?
The song that Clair dances to is "Twist And Shout" by The Isley Brothers.
In another episode, Cliff says the room will be finished in November. However, this episode is aired in December and the room is said to be finished early.
When Cliff sends the children outside to view the Christmas lights and tells them to go across the street to get the full effect, they appear to walk straight across the street; but as has been shown in previous episodes (such as Theo's Holiday, The Card Game and An Early Spring) in addition to exterior shots, the Huxtables' brownstone has a six-step stoop preceding the front door. Why didn't the kids go down the stairs?
Goof: Dabnis tells Vanessa, "I didn't choose you, you chose me.", but during the episode "With this Ring?", Dabnis mentioned that he kept mowing around her at Lincoln just to get her attention.
At the very end of the episode, Clair walks into the kitchen from the double doors. When she tries to shut them, they bounce back open, leaving the doors ajar. Vanessa and Dabnis come down the stairs, and you clearly see the doors still open, but when the camera shows the doors again, they are shut.
Miriam Makeba recites the South African pronounciations of the twins' names. When this episode was aired, their real-life namesakes, Nelson & Winnie Mandela were about to end their marriage in South Africa.