What is the name of this Nickelodeon cartoon from the 1980's?!

I used to love this cartoon on Nickelodeon when I was a child but I can't remember what it was called!. It is about a boy who is looking for his mother, he has a large white dog with him all the time that people think is a demon, what is the name of the cartoon!?Www@Enter-QA@Com

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