When does CatDog return?

CatDog is an American animated sitcom created by Peter Hannan for Nickelodeon. The series follows the adventures of a cat and a dog who share a body. Cat is strait-laced and intellectual whereas Dog is impulsive and happy-go-lucky. Cat and Dog's personality differences share similarities with The Odd Couple, the Looney Tunes shorts and elements of Laurel and Hardy, Abbott and Costello and fellow Nicktoon characters Ren and Stimpy.
The series revolves around Cat and Dog, a golden-furred conjoined twin hybrid of a cat and a dog with two heads and shared body, with no tail or hind legs. Although they are best friends they have very different personalities, similar to "The Odd Couple" and the Looney Tunes shorts. The series takes place in Nearburg, a town dominated by anthropomorphic animals.