It was just a matter of time.
As the live-action Sabrina, The Teenage Witch entered its 4th season on ABC, the network added an animated prequel, which recast Sabrina as a 12 year old. DIC (now part of Cookie Jar, and part of the Disney family at the time, making it a sister company to ABC) collaborated with series star Melissa Joan Hart's production company, Hartbreak Films, and with producer Savage Steve Holland (ex-Eek The Cat) to bring Sabrina: The Animated Series to the air. 65 episodes were ordered, to air in syndication and/or UPN's Disney's One Too weekday block while concurrerntly being part of Disney's One Saturday Morning on ABC. ABC was able to keep the series running until October 2001, when it was cut to make room for Mary-Kate & Ashley In Action.
Hart served as a producer and a supporting performer in this series, giving the pre-teen Sabrina over to sister Emily while voicing aunts Hilda & Zelda (Caroline Rhea & Beth Broderick in the primetime series). The animation was in line with the comedy series DIC was producing at the time, a far cry from the lush, full linework of their 80's series (i.e. The Real Ghostbusters, Inspector Gadget).
Here's the intro:
Archie Comics had rebooted Sabrina to fit the look of the live-action series, and did some stories based on the cartoon as well, as I seem to recall. However, with due respect to Melissa Joan Hart, Sabrina looks best in her classic look, with platinum blonde hair, not basic blonde. As a pre-teen, Sabrina's hair is longer, suggesting that it would be cut well before she turns 16, as she is depicted initially in the live-action series.