This pilot episode/short by Paul Rudish is one of the only 14 out of 39 completed pilot episodes that was supposed to air in the animated anthology series 'The Cartoonstitute' on Cartoon Network, Unfortunately the show got scrapped due to Cartoon Network not being able to balance 5 upcoming shows and just adding another one would be too difficult for them so the project was scrapped.
The full short can be watched on YouTube in HD for free.
3 Dog Band is one of the 3 shorts that are not on Cartoon Network's official website, The other two being Maruined and Joey to the World.
Due to the short being too obscure after the show was scrapped, It is still to this day unknown who voices the characters in this pilot episode.