Doc and Mharti was a Back to the Future parody....kind of......by Justin Roiland and others, produced by Comic Sacrifice.
The Real Animated Adventures of Doc and Mharti
It was designed to annoy Universal's lawyers.
SCUD VLOG 12
Doc and Mharti promote Scud: The Disposable Assassin
Justin Roiland and Dan Harmon's Adult Swim series Rick and Morty borrows the voices and character designs, as Roiland was attached to them, but is a very different beast.