Avatar:The Last Airbender. Tbf it still is.

Original Tom and Jerry Visionaries Doug Kissyfur Gummy Bears

Ducktales (The original)

Thundercats

Rugrats

1999-2004/5ish SpongeBob

Pink panther

Star Wars: The Clone Wars, with Spongebob Square pants and The Amazing World Of Gumball not far behind

Codename: Kids Next Door