Once upon a time, there was a TV show called "Amazing Stories" that ran about, oh.... twenty years ago or so. It was conceived by Steven Spielberg and he even directed a few episodes.
Amazing stories was an anthology series, meaning it was much like "The Twilight Zone" in that each episode was unrelated and there were no regular actors. Much of it dealt with themes of fantasy, supernatural, sci-fi etc. It only ran for two seasons and every episode was live action except for one. That episode was "Family Dog".
Family Dog was the only animated episode and was directed by the same man who directed the animated movie, "The Iron Giant". It was about a middle-class family with a family dog who was not thought of very fondly. A few years later, it spawned its own weekly TV series but it could never capture the original magic of this episode. Have a look now at Family Dog.
Family Dog (Part 1 of 3)
Family Dog (Part 2 of 3)
Family Dog (Part 3 of 3)