The series premiered on August 11 1991, and ended on June 4 2004.
Lil and Phil almost always refer to each other as "Lillian" and "Philip".
The names Aunt Miriam mistakenly calls Didi are: Dolly, Sally, Callie, Ginny, Phoebe and Fifi.
A running gag in the show is Grandpa Lou's fondness for the number 15. The show parodies this when the robot Grandpa says his batteries functioned fine for 15 million years and then he adds "or was it fourteen?".
Angelica is the oldest of the siblings at 3 years old, Susie turns 3 next, Chuckie is 2, Kimi is nearly 2, Lil is older than Phil
When the show began, Stu was 35 and his father Lou was 76. This means that Lou and his wife didn't have Stu until Lou was already 41 years old!
Lou's wife/Stew and Drew's mother was named Trixie McGee. She only appears in flashbacks, having apparently passed away sometime in the past. Little is known about her, although she did participate in the second Estes Kefauver presidential campaign in 1956.
In the original unaired pilot, Lou Pickles was named Stu Pickles Sr.
Pat Sajak is the only real life celebrity to guest star as themselves in the three original Nicktoons.
Was previously known for having more episodes than any other Nicktoon with a total of 172 (227 if the All Grown Up series is included). Until Spongebob Squarepants broke its record with more than 180.
The show takes place in California as evidenced by a California flag at the post office and the license plate on the car.
Although Tommy is usually seen wearing his signature blue shirt, in the first episode, he is depicted wearing a red shirt instead.
The series premier. It introduces all of the major characters, with the notable exceptions of Chaz Finster (Chuckie's dad) and Charlotte Pickles (Angelica's mom).
One of the few times on the series (or on any Nicktoon for that matter) where the entire 30-minute block is filled with 1 long story, rather than 2 shorter 15-minutes one.
As the pilot, there are a few differences from later on in the series. For instance, Tommy wears a read shirt with overalls rather than his usual blue shirt. Likewise, Angelica is considerably less mean and spoiled than her later appearances (though there are a few moments here and there that hint at her later attitude).
Chaz is show once briefly, and a woman with similar-looking glasses to his and Chuckie's is shown with him briefly. It is never explained if this his wife/Chuckie's mother, and even if it is, later seasons claim Chuckie's mother died when he was younger.
The tune that Dr. Lipschitz hums throughout "A Visit From Lipschitz" is "Glorious Things of Thee Are Spoken" from the Lutheran hymn book.
The pudding mix Stu buys is called Duffy's Pudding Mix. This is a reference to the segment's director, Jim Duffy.