Hey! Over the years there has been many Nicktoons that has been cancelled or ended their runs for various reasons and I was wondering if you guys know the reasons why some of the Nicktoons were cancelled or ended their runs? Here are some of the reasons that I know about certain Nicktoons getting cancelled or ending their runs: The Angry Beavers: It was cancelled due to the final episode "Bye Bye Beavers" breaking the network's rules at the time that the shows cannot break the fourth wall or alert viewers about when a show is ending. Rocko's Modern Life, Aaah! Real Monsters, Doug and Ren and Stimpy: They were cancelled due to the network's rules about shows reaching the 52 episode limit at the time. Avatar the Last Airbender: The show pretty much ended on its own terms. Of course, if I'm wrong about these reasons, then let me know down below! And also, what other Nicktoons do you know got cancelled or ended their runs and what were the reasons for those shows getting cancelled or ending their runs?