Are you trying to find words to use to find a specific topic? Older items may use different terminology. You can look up subject and names in the Library of Congress linked data service. Do a search for science fiction television, and you will find subjects such as Science fiction television programs and Dystopian television programs. Knowing this can allow you to look for all works that have that name or subject linked.
Subject headings for fantasy, horror, & science fiction:
FANTASY FICTION--HISTORY AND CRITICISM
FANTASY FICTION, AMERICAN -- HISTORY AND CRITICISM
FANTASY FICTION, ENGLISH--HISTORY AND CRITICISM
FANTASY FICTION [JAPANESE, RUSSIAN, FRENCH, etc] -- HISTORY AND CRITICISM
FANTASY IN LITERATURE
FANTASY LITERATURE--HISTORY AND CRITICISM
FANTASY LITERATURE, ENGLISH--HISTORY AND CRITICISM
FANTASY FILMS--HISTORY AND CRITICISM
ALTERNATIVE HISTORIES (FICTION)
GOTHIC FICTION
HORROR FILMS--HISTORY AND CRITICISM
HORROR IN LITERATURE
HORROR TALES--HISTORY AND CRITICISM
HORROR TALES, AMERICAN--HISTORY AND CRITICISM
HORROR TALES, ENGLISH--HISTORY AND CRITICISM
SUPERNATURAL IN LITERATURE
SCIENCE FICTION--HISTORY AND CRITICISM
SCIENCE FICTION, AMERICAN--HISTORY AND CRITICISM
SCIENCE FICTION, ENGLISH--HISTORY AND CRITICISM
SCIENCE FICTION FILMS--HISTORY AND CRITICISM
SCIENCE FICTION FILMS--UNITED STATES--HISTORY AND CRITICISM
ZOMBIE FILMS
ZOMBIES--FICTION
SCIENCE FICTION--BIBLIOGRAPHY
SCIENCE FICTION, AMERICAN--BIBLIOGRAPHY
SCIENCE FICTION, ENGLISH--BIBLIOGRAPHY
FANTASY LITERATURE--BIBLIOGRAPHY
-Thanks to Regina Bouley Sweeten, ENMU