The Super Powers Team: Galactic Guardians - Season 1 Episode 7 Brainchild
Overview: While attending a science fair with Ronald Raymond (Firestorm), Cyborg is captured by robots and is taken to a starship owned by Brainiac who uses Cyborg as his latest experiment. When Superman and Firestorm arrive, they have to battle a giant robot that Brainiac built to destroy them and Brainiac has transferred Cyborg's mind into the robot.