After The Odd Couple ceased production, the apartment set on that show was modified to become Laverne and Shirley's apartment.
For several years there was a certain amount of interplay between the characters of this show and Happy Days, especially when both shows were set in Milwaukee, Wisconsin.
"The Big Ragoo" was a dance instructor.
Carmine was a Golden Gloves champion before becoming a dance instructor.
Frank DeFazio, Laverne's father, owns at The Pizza Bowl, a combination pizza parlor and bowling alley.
Shirley's good luck charm was Boo-Boo Kitty, a cloth cat.
Squiggy's real first name was Andrew.
Shirley's middle name was Wilhemina, after her dead grandmother.
When Cindy Williams departed during the 1982-1983 season, due to pregnancy, her absence was explained by having Shirley moving out of the apartment to be with her husband Walter after he was transferred out of the country.
Laverne's favorite drink was milk and Pepsi.
The name of the club that Laverne and Shirley belonged to as teenagers was called the Angora Debs.
Laverne, Shirley, Lenny, Squiggy and Carmine all went to Filmore High School,
Virtually all the scripts of the unsuccessful sitcom "Hey, Landlord" (1966) were eventually rewritten as scripts for this show
While still a defensive end with the L.A. Rams, actor Fred Dryer made his television debut in a 30 second spot as a lifeguard in Laverne's dream sequence in the 6th season premiere "Not Quite New York".
Laverne always wears the letter "L". Sometimes she has one "L" on her skirt and another "L" on her blouse.
Michael McKean and David L. Lander were originally hired as writers/consultants. They wrote themselves into the show as Lenny and Squiggy, two characters they created in college. Squiggy was originally named "Ant'ny" but the producers wanted the two boys' names to coincide with the girls'. Squiggy was the name of an unseen character in McKean and Lander's "Lenny and Ant'ny" sketches.
Penny Marshall worked the milk and Pepsi joke in based on her own life because as a child her mother would fill the same cup with milk as later with Pepsi and often wouldn't rinse out the cup or even wait until it was empty.
Frustrated at TV shows constantly repeating who the characters are and what they do, Penny Marshall came up with the idea of Laverne having L's on all her clothes, figuring that would solve the problem. To her chagrin, they still had to say on a regular basis who was who and where the girls worked; she got tired of all the times Cindy Williams would say 'Laverne' in an episode.
Cyndi Grecco, the vocalist of the show's hit theme song "Making our Dreams Come True" was singing in a band at 6 Flags Magic Mountain near Los Angeles when composer Charlie Fox accidentally heard her and offered her the job
The answer to the question asked in the episode's title is: "Bist du tot?"
The car the girls buy, and that Laverne uses in her road test, is a 1952 Hudson Wasp convertible. It was rented to the production company by a Hudson collector in California.
While one may think that Laverne not driving is unusual, at the time the show is suppose to take place, Shirley actually is. It was not until the late-1970s when more then five percent of women, in the United States, held a driver's license.
The phone number to Laverne's and Shirley's apartment is given as KL5-9988.
The title is based on one of the basic legal principles of American justice: innocence until proved guilty.
The title is based on the Depression Era ballad "Brother, Can You Spare a Dime?"
When Lenny's trademark red-and-white jacket first appears, the back read "One Wolf" because the "L" in "Lone" was erroneously left off at the place where Lenny had it made. After a heart-to-heart talk with Laverne, she ripped off one of her trademark "L" monograms and put it on Lenny's jacket, making it say "Lone Wolf" as Lenny originally intended.
Per the title, Fabian or Fabiano Anthony Forte is a former American teen idol of the late 1950s and early 1960s who rose to national prominence after performing several times on American Bandstand appearing in the Billboard Hot 100 eleven times.