The science fiction genre has crafted some incredible series, including Stranger Things, The Mandalorian, and Battlestar Galactica. While these shows continued to succeed, several incredible sci-fi series fell under the radar and didn't receive much attention. Whether they were canceled too early or kept getting overshadowed by more famous series in the genre, these shows were creative with their sci-fi concepts.
Source:https://www.cbr.com/tv-sci-fi-underrated/