* Cartoon Network: In the US, Sonic X aired on Cartoon Network for a while.
* Jetix: In Europe and Asia, it aired on Jetix (which was later rebranded as Disney XD).
* Other Channels: You may find it on other channels depending on your region, like Nickelodeon, Teletoon, etc.
The best way to find out where you can watch Sonic X is to check your local TV listings or streaming services.
Streaming Services:
Many streaming services like Netflix, Hulu, and Amazon Prime Video offer Sonic X, but availability varies by region and can change over time.