The name of Laverne and Shirley's supermarket is Slotnick's.
This is the second time Laverne and Shirly would dress up like Jack and Jill, the first being in "Cruise (1)". While Laverne was always the tomboy, and Shirley was the girly-girl, in both instances, Shirley is Jack and Laverne is Jill.
It is revealed in this episode that Shirley is the youngest of five and has four brothers: Michael, Timothy, Christopher, and Bobby.
Laverne and Shirley give each other identical Elvis Presley records as Christmas gifts.
"O Come, All Ye Faithful" and "The Twelve Days of Christmas" are heard in this episode.
Shirley says her favorite Christmas song is "O Come, All Ye Faithful."
Laverne and Shirley moved into the building in 1956.
Laverne and Shirley's money is kept in their Bible, but instead of keeping it at Ezekiel 26 as they usually do, it is between the Old and New Testaments "where they have the ads."
In this episode, The Pizza Bowl celebrates its 10th anniversary.
Shirley says she got straight C's in school.
Laverne says she can't follow the stories on the television series Ben Casey. This episode takes place in 1960, but Ben Casey didn't premiere until 1961.
It is revealed that Shirley's favorite movie is Casablanca.
The janitor's name is Raul.
It is revealed that Edna dumped her third husband, Johnnie, on Divorce Court.
As Lenny approaches Carmine and Shirley, who are sitting on a stoop, he is wearing a pair of leather biker boots. Yet, when he walks into the street and starts to dance, he's wearing a pair of white canvas Converse Jack Purcell sneakers/plimsolls.
This is the first episode in which Frank has a mustache and white hair.
Laverne's grandmother appears to have Laverne and Shirley's Milwaukee kitchen in her New York apartment.