CatDog is an American animated television series created by Peter Hannan for Nickelodeon. The series follows the life of conjoined brothers of different species, with one half of the resultant animal being a cat and the other a dog. Nickelodeon produced the series from Burbank, California. The first episode aired on April 4, 1998, following the 1998 Kids' Choice Awards, before the show officially premiered in October of that year. Similarly, the Season 2 episode "Fetch" was shown in theaters with The Rugrats Movie in 1998 before airing on television.
The series revolves around Cat and Dog, a conjoined twin of a cat and a dog, who share the same body with no tail or hind legs. Although they are best friends and brothers, they have very different personalities, similar to "The Odd Couple" and the original "Looney Tunes" shorts, mixed with elements of Laurel and Hardy, Abbott and Costello, and fellow Nicktoon Ren and Stimpy. Cat is very cultured while Dog is very fun-loving. Dog enjoys chasing garbage trucks, cars, and exploring many things that Cat does not want to be involved with. Dog enjoys eating at fast-food restaurants (such as Taco Depot), whereas Cat does not. The series takes place in Nearburg, a town dominated by anthropomorphic animals and the occasional humanoid.