Rick and Morty was created by both Justin Roiland and Dan Harmon, it started airing last year and since had 11 episodes. It’s one of the best animates science fiction series.
Aside from the Foundation trilogy, there are seven other novels that contain the "Foundation" moniker, including three by other authors. Additionally, the same universe contains the entire "Robot" series of stories and books as well. Although I've skipped around in his other novels, I'm not as familiar with them as I am with these first three (I specifically went back and read them specifically for this post). These books were voted the best science fiction series of all time during the 1966 Hugo Awards.