When does Cow and Chicken return?

The series follows the adventures of two talking animal siblings, Cow and Chicken. The original pilot appeared as an episode of the animation showcase series What a Cartoon!. The popularity of the original short allowed Hanna-Barbera Cartoons and Cartoon Network Studios to give it the green light for a full series. The series has a total of 52 episodes that were produced from July 1997 to July 1999.
The series focuses on the misadventures of two unlikely yet somehow biological siblings. The two are often caught in escapades with their flamboyant enemy, the Red Guy. The series draws on eccentric, surreal, grotesque, and repulsive humor.