Of her five ex-husbands, her third, Johnnie, is the only one to appear in the series.
It is revealed that Squiggy is a Lutheran.
The bedtime prayer Shirley recites is "Now I Lay Me Down To Sleep."
Carmine sings "Personality," by Lloyd Price.
Shirley worries in a later episode about whether she is adopted saying no one in her family has dark hair. In this episode, her cousin, Mikey, has dark hair.
"Breaking Up Is Hard To Do," by Neil Sedaka, is heard on the jukebox.
When Laverne and Shirley talk about Amy in the beginning of the episode, Shirley says "18 years old and she's only in the eighth grade." However, her lips read "fourth grade."
This episode takes place between December 27, 1959 and January 1, 1960. However, two songs heard in the episode weren't released until 1961 and one wasn't released until 1960.
The hospital set is the same one used various times on Happy Days.
Up to this point, Rosie has had a never-ending way of insulting her "good" friends whether it be about their jobs, money, or dating experiences. In her last regular appearance, Rosie is finally put in her place. She ends up scrubbing the apartment floors and the toilet with only a toothbrush.
Carole Ita White makes her final appearance in this episode.
Frank's nickname for Laverne is Muffin.
The Pizza Bowl has been in business for about nine years at this point.
Laverne sings "On the Good Ship Lollypop."
When Shirley rips the "L" monogram off of Laverne's sweater, Laverne sadly picks it up and presses it back on, leaving part of it dangling off. When some commotion happens outside, and the girls run out, the monogram is now perfectly attached.
In this episode, it is revealed that Laverne's middle name is Marie.