Since 2021, several children's television series have debuted on ABC (Australian Broadcasting Corporation). Here are a few notable ones:

1. "Kangaroo Beach" (2021)

   • Aimed at preschoolers, this animated series focuses on a team of animal rescue teams on the beach.

2. "Bluey" Season 3 (2021)

   • Although not a debut, the third season of this immensely popular Australian series started airing, continuing to capture the hearts of young viewers.

3. "The Wonder Gang" (2021)

   • An educational series where a team of kids, known as the Wonder Gang, explores various questions and scientific phenomena.

4. "Mikki vs The World" (2021)

   • Aimed at older children, this series blends live-action narratives and provides insightful life lessons.

5. "Beep and Mort" (2023)

   • An original ABC Me show that continues to entertain kids with engaging animated characters.

For the most updated schedule and new debuts, you can check out the ABC Kids official website or ABC Me official website.

Feel free to explore these further on the ABC platforms!