Back in 2000 (or 2001), i watched RoboRoach which ran on Teletoon in Canada and Jetix in Europe. It follows the story of a cockroach named Rube and his brother Reg. While scavenging for food, as seen in the introduction film, Rube is caught and experimented on. His brother saves him, but when they jump in a plug, Rube is transformed forever into a roboroach, a half-robot half-cockroach. After that he swears to use his powers only for the good of everyone and never for personal use, unfortunately for Reg.
As you can see, this show has 30 minutes in each episode and it could the only rare find to download the episodes (expectally you can't find it at YouTube but only has intro sequence).
Here's the intro of RoboRoach: