User:Josiah Rowe/sandbox2

The lengths of science fiction film and television series can be determined in many ways. These include time between first and last original broadcast or theatrical release, number of seasons broadcast (for television series), number of seasons broadcast consecutively, number of episodes and total running time.

Additionally, some television series may be calculated individually or totalled together as part of a media franchise.

In listing the total running lengths, canon and non-canon are separated where applicable. Original canon is also separated from remakes and "re-imaginings". Note that this list contains only the officially released motion picture media (films and TV series) contained within the various science-fiction series. Additional unique motion-picture content from other media is included under the supplemental category. Some series may contain other media (books, comics, video games, etc.) which are not listed here. Series which are currently airing or filming are shaded. Most timings are approximate.