It won two other awards in the Best Actor and Best Guest Performance on a Television Series categories for Andrew Lincoln's and Jeffrey Dean Morgan's performances, respectively.
Zombie-themed drama "The Walking Dead" was the biggest winner at the 43rd Annual Saturn Awards, bagging three honours, while "Westworld" won two gongs.
"The Walking Dead" beat its sister show "Fear the Walking Dead" as well as "American Horror Story: Roanoke" and "The Exorcist" to be named Best Horror Television Series.
It won two other awards in the Best Actor and Best Guest Performance on a Television Series categories for Andrew Lincoln's and Jeffrey Dean Morgan's performances, respectively.
"Westworld" was declared Best Science Fiction Television Series, edging out "The 100" and "Timeless" among others.
Its cast member Ed Harris won over co-star Jeffrey Wright, Norman Reedus ("The Walking Dead") and Kit Harington ("Game of Thrones") to pick up the Best Supporting Actor on a Television Series Award.
"Supergirl" also grabbed two prizes, for Best Superhero Adaptation Television Series and Best Actress on a Television Series (Melissa Benoist).
The series beat out "Marvel's Agents of S.H.I.E.L.D.", "Arrow", "The Flash", "Gotham" and "Legion" for the title.
"Outlander" held onto its title as Best Fantasy Television Series, while "Marvel's Daredevil" was succeeded by another Marvel-Netflix series, "Luke Cage", as Best New Media Television Series.
"Riverdale" was hailed as Best Action/Thriller Television Series in its freshman season, while its star KJ Apa won the Breakthrough Performance Award.
Presented by the Academy of Science Fiction, Fantasy and Horror Films, the annual event is held to honour the best in science fiction, fantasy, horror and other genres in film, television, home media releases and theatre.
This year's ceremony, hosted by Sean Gunn, included a tribute to Adam West and Roger Moore in In Memoriam segment.
(This article has not been edited by DNA's editorial team and is auto-generated from an agency feed.)
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