The series assumed watchers already knew the foundation of the series and characters, and did not start from the founding of the club.note Notably the episodes did not specifically focus on events from the book series, instead creating original plots among the characters.
Compare to the 1995 feature film and the 2020 Netflix series.
This series provides examples of:
- Actually Pretty Funny: In "Mary Anne and the Brunettes" at the school carnival pie-in-the-face booth Marci (who's been trying to steal Mary Anne's boyfriend Logan) taunts Mary Anne on the side about Logan being a good kisser. Mary Anne successfully throws her pie at Marci instead. Marci's friends have a good laugh at it before trying to hide their laughter from Marci.
- Adaptational Jerkass: Dawn. Obviously, she's not the nicest of girls in the series, but here she's portrayed as more stubborn and argumentative.
- All Elections Are Serious Business: "Kristy and the Great Campaign" has Kristy and the club helping a shy girl named Courtney run for the third grade student council elections. The club ends up helping her overcome her shyness, gets school students chanting "Count on Court" and defeating her opponent Jeremy Marver.
- Animal Wrongs Group: "Dawn Saves the Trees" has Dawn becoming upset by a building contractor who was going to clear out a forest for new construction, and even confronted the group at a hearing. Fair enough, but she also decided to angrily break a date with the contractor's son and actively avoids him in spite of him not being involved whatsoever with the project.
- Cannot Keep a Secret: "Jessi and the Mystery of the Stolen Secrets" had the girls' reputation take a hit because they were seemingly telling intimate/embarrassing secrets about their charges. They in turn come to believe that someone may have snooped in the club notebook. It turns out to be an innocent mistake; Matt Braddock, who is Deaf, had started learning to lip-read, but because no one knew about this new ability, they didn't guard conversations or tell him certain things were supposed to be secret (as they assumed, somewhat reasonably, that he wasn't aware of anything they were talking about if they weren't using sign language), so he was repeating them not realizing he was doing anything wrong.
- Cool Old Lady: Claudia's late grandmother, who taught the girls how a Japanese tea ceremony goes and was a kindred spirit with her granddaughter.
- Company Cross-References: "Jessi and the Mystery of the Stolen Secrets" features both Clifford the Big Red Dog and a Goosebumps book, which are owned by Scholastic.
- Covers Always Lie: The VHS covers showed artwork covers from the published book series; however, the plot lines rarely aligned. For example, the cover image for the VHS for "Stacey Takes a Stand"—which is about Stacey dealing with conflict between her divorced parents—is the book cover from the super special New York, New York!, which is about the girls taking a vacation to New York City together. The only thing in common with the book is that Stacey is in New York.
- Demoted to Extra: Mallory never starred in an episode all her own; Jessi only received one. The sitting clients were also downplayed, with episodes instead more about the girls themselves and their inter- and intra-personal issues as tweens and teens.
- Edutainment Show: The show focused more on imparting moral lessons to children rather than the characters or any book plots.
- Ill Girl: Stacey's diabetes is mentioned in the Christmas Episode. She is seen eating too many sweets for the holidays, in spite of the others' warnings, and ends up hospitalized for Christmas.
- I Remember Because...: In "Claudia and the Mystery of the Secret Passage", the owner of a jewelry store is able to recall the family the girls are asking about because the older sister's wedding was a big event in town and a lot of people came to him to purchase wedding gifts.
- Malicious Misnaming: One episode had a rival of Kristy's repeatedly call her "Crystal", in spite of her angrily trying to correct him.
- The One Guy: Logan, Mary Anne's boyfriend, is the main male recurring character and the only one to receive his own episode, "The Baby-Sitters and the Boy-Sitters".
- Parents as People: In "Stacey Takes a Stand", Stacey's recently-divorced parents clearly love her, but neither of them realizes how much they're dragging Stacey into their own conflicts (such as by constantly criticizing each other to her) or the amount of stress that it's causing her. By the end of the episode, Stacey finally finds the words to tell them how much it bothers her and they both commit to doing better.
- Pie in the Face: "Mary Anne and the Brunettes" has Mary Anne throw a pie in the face of the obnoxious Marci who's been trying to steal Mary Anne's boyfriend Logan throughout the episode. At a school carnival, Mary Anne is up next for the pie throwing booth and initially was going to pie Mallory in the face when Marci bragged she'd never told Mary Anne about what a good kisser Logan was. Mary Anne throws it at Marci, hitting her spot-on.
- Puppy Love: More than one episode revolves around the 12- and 13-year-old protagonists having crushes on boys. Much more than the book series does (where only Mary-Anne has a steady boyfriend for the majority of the series).
- Race Lift: Zig-Zagged. The Kishis are very much still Japanese-American in-universe, however Claudia is played by Jeni Winslow, a white actor.
- The Show of the Books: The series adapts the children's book series The Baby-Sitters Club.
- Shout-Out: The Valentines Day episode ends with a huge dance where the background music is an instrumental of "Never Gonna Give You Up".
- Sibling Rivalry: The overall theme of "Claudia and the Mystery of the Secret Passage". The eponymous mystery centers on two sisters who didn't get along, while the subplot revolves around Claudia's fraught relationship with Janine. In the end, the girls learn that the two sisters from the mystery eventually resolved their differences and actually became quite close to the point where they, now in their 70s, run a store together, and Claudia and Janine also manage to talk out their conflict from earlier in the episode and affirm that despite not always seeing eye-to-eye, they still love each other.
- Slumber Party: The final episode consists of the girls sharing memories at a sleepover.
- Surprisingly Realistic Outcome:
- In the Christmas Episode "The Baby-Sitters Club's Special Christmas" Stacey decides to "cut loose" and indulge in more holiday treats than usual. Problem is, she's an insulin-dependent diabetic and while a rare treat can be harmless (especially if your sugar count is low), you can't overdo it.note Needless to say, the poor girl ends up hospitalized on Christmas Day.
- Episode 10, "The Baby-Sitters and the Boy-Sitters", has Logan and his friends bond with the girls' charges to the point where the clients come to prefer them to the girls, due to being more fun-loving and not disciplining them like they do. While they obviously got along with the kids, they soon realize how ill-equipped they are to actually sit for them, easily getting overwhelmed when they go to an arcade center for the day.
- Spotting the Thread: In "Claudia and the Mystery of the Secret Passage", Janine overhears Claudia and Dawn discussing the note and ring they found in the secret passage at Dawn's house which they presume to be a century old or more, but Janine notes, albeit in a slightly snarky way, that the note can't be as old as they're suggesting it is because it was taped to a rafter with transparent tape, which was only invented in the 1930s. Just like that, what the girls thought was a creepy mystery with the truth likely lost to time becomes a more grounded mystery where there's a real chance of getting answers.
- Suspiciously Similar Substitute: For unexplained reasons, the club's school rivals Cokie Mason and Grace Blume were renamed Marci and Patty respectively (no last names given) for their appearance in "Mary Anne and the Brunettes". Marci takes on Cokie's role in trying to steal Logan away from Mary Anne.
- Theme Tune: "Say Hello to Your Friends" by songwriter Glen Roven. It later became seen as the theme song for the series as a whole and was used in the 2020 series.
- What Happened to the Mouse?: Jeremy Marver, Courtney's opponent in "Kristy and the Great Campaign", gets defeated in the student council elections but his reaction is never seen; he's not shown congratulating Courtney or being upset with his defeat.