In the show's new open, Laverne and Shirley take in a juicy scene through a secret peep hole in the wall. However, this wall is near the back door, and it appears that there are no neighbors living beside them.
The girls' apartment number is 113 1/2.
Shirley's hair is, once again, black beginning with this episode.
Leslie Easterbrook and Ed Marinaro make their first appearances as Rhonda Lee and Sonny St. Jacques, respectively.
Shirley has a houseplant named Stanley.
Shirley says she is a Protestant Democrat, and the only thing left standing after the earthquake is their Bible.
Frank leaves his restaurant, the Pizza Bowl, after owning it for over 12 years.
"Yesterday" by the Beatles
This is partly a flashback episode with clips from many episodes used to remember the good times in Milwaukee.
Laverne says that her only fear is being seen in public alone. However, it is mentioned in another episode that she is afraid of small spaces.
This is a flashback episode.
Michael McKean provides the voice of the narrator.
by Laverne De Fazio
My best friend is Shirley Feeney,
The Best in all the land.
Whenever we're in trouble,
We face it hand in hand.
We laugh when we are happy,
We cry when we are sad.
We talk when we are lonely,
Just to know her makes me glad.
If I had one wish in life,
I know what it would be.
I'd have Shirl as my best friend,
For all eternity.
This is the first time we get to see the frequently-mentioned wax museum of Squiggy's Uncle Elliot.
This is, in part, a flashback episode.
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.