Salvation (2017–2018)
Salvage 1 (1979)
Sanctuary (2008–2012, Canada)
Sapphire & Steel (1979–1982, UK)
Science Fiction Theatre (1955–1957, anthology)
seaQuest DSV (1993–1996; renamed seaQuest 2032 for third season)
The Second Hundred Years (1967–1968)
The Secret Adventures of Jules Verne (2000)
Secret Agent Man (2000)
The Secret Service (1969, UK, puppetry)
The Secret World of Alex Mack (1994–1998)
The Secrets of Isis (1975–1977)
Sense8 (2015–2018)
The Sentinel (1997–1999)
Seven Days (1998–2001)
Shadows (1995–present)
Sharad of Atlantis (1966, film) a.k.a. Undersea Kingdom (1936, film serial)
Shazam! (1974–1977)
Silversun (2004, Australia)
Sir Arthur Conan Doyle's The Lost World (1999–2002, Canada/Australia/New Zealand)
The Six Million Dollar Man (1974–1978)
Sleepwalkers (1997–1998)
Sliders (1995–2000)
Small Wonder (1985–1989)
So Weird (1999–2001)
Something Is Out There (1988, miniseries)
Space: 1999 (1975–1977, UK)
Space: Above and Beyond (1995–1996)
Space Academy (1977–1979)
Space Cases (1996–1997)
Space Command (1953–1954, Canada)
Space Island One (1998, UK/Germany)
Space Odyssey: Voyage To The Planets (2004, UK, docufiction)
Space Patrol (1950–1955)
Space Patrol (1963–1964, UK) a.k.a. Planet Patrol (US)
Space Police (1986, Space Precinct pilot)
Space Precinct (1994–1995)
Space Rangers (1993)
Spadla z oblakov She Came Out of the Blue Sky (1978–1979, Czechoslovakia)
The Sparticle Mystery (2011–2013)
Special Unit 2 (2001–2002)
Spectre (1977, UK, film)
Speed Racer (US adaptation) a.k.a. Mach Go Go Go (Japan) (franchise)
Spellbinder (1995, Australia/Poland)
Spider-Man (franchise):
- Spider-Man (1978–1979, Japan)
- The Amazing Spider-Man (1977–1979)
- Spidey Super Stories (1974–1977)
The Stand (1994, miniseries)
Star Command (1996, film)
Star Cops (1987, UK)
Star-Crossed (2014)
Star Maidens (1976, UK)
Star Trek (franchise):
- Star Trek: The Original Series a.k.a. ST:TOS (1966–1969)
- Star Trek: The Next Generation a.k.a. ST:TNG (1987–1994)
- Star Trek: Deep Space Nine a.k.a. ST:DS9 (1993–1999)
- Star Trek: Voyager a.k.a. ST:VOY (1995–2001)
- Star Trek: Enterprise a.k.a. ST:ENT (2001–2005)
- Star Trek: Discovery a.k.a. ST:DSC (2017–present)
- Star Trek: Short Treks a.k.a. ST:ST (2018–present)
- Star Trek: Picard a.k.a. ST:PIC (2020–2023)
- Star Trek: Strange New Worlds (2022–present)
Star Wars (franchise):
- The Star Wars Holiday Special (1978, special, film)
- Caravan of Courage: An Ewok Adventure (1984, film)
- Ewoks: The Battle for Endor (1985, film)
- R2-D2: Beneath the Dome (2001, mockumentary)
- Star Wars: The Legacy Revealed (2007, special, documentary)
Star Wolf (1978, Japan)
Starflight: The Plane That Couldn't Land a.k.a. Starflight One (1983, film)
Stargate (franchise):
- Stargate Atlantis a.k.a. SGA (2004–2009, Canada/US)
- Stargate SG-1 SG-1 (1997–2007, Canada/US, ship-based seasons 6–10)
Stargate Universe (aka SGU) (2009–2011, Canada/US)
Starhunter (2000–2004, Canada)
Starhyke (2011, UK)
The Starlost (1973–1974, Canada)
Starman (1986–1987)
The Stepford Children (1987)
Stingray (1964–1965, UK, puppetry)
Stormworld (2009, Australia/Canada)
Stowaway to the Moon (1975, film)
Strange Days at Blake Holsey High (aka Black Hole High) (2002, Canada)
Strange Frequency (2001)
Strange Luck (1995–1996)
Strange World (1999–2002)
The Stranger (1964–1965, Australia)
The Stranger (aka Stranded in Space) (1973, film, pilot)
Stranger from Space (1951, UK)
Stranger Things (2016–present)
The Strangerers (2000, UK)
Street Hawk (1985)
Super Force (1990–1992)
Himitsu Sentai Gorenger (aka Gorenger, Goranger) (1975–1977, Japan)
J.A.K.Q. Dengekitai (aka The Jackers) (1977, Japan)
Battle Fever J (1979–1980, Japan)
Denshi Sentai Denziman (aka Denjiman, Electric Fighters, Denziman) (1980–1981, Japan)
Taiyo Sentai Sun Vulcan (aka Sun Vulcan) (1981–1982, Japan)
Dai Sentai Goggle-V (aka Dai Sentai Goggle Five, Goggle V) (1982–1983, Japan)
Kagaku Sentai Dynaman (aka Dynaman) (1983–1984, Japan)
Choudenshi Bioman (aka Bioman) (1984–1985, Japan)
Dengeki Sentai Changeman (aka Changeman) (1985–1986, Japan)
Choushinsei Flashman (aka Flashman) (1986–1987, Japan)
Hikari Sentai Maskman (aka Maskman) (1987–1988, Japan) Bioman 2 (France)
Choujuu Sentai Liveman (1988–1989, Japan) a.k.a. Liveman; Bioman 3 (France)
Kousoku Sentai Turboranger (1989–1990, Japan) a.k.a. Turbo Rangers
Chikyu Sentai Fiveman (1990–1991, Japan) a.k.a. Fiveman; Sky Rangers
Chōjin Sentai Jetman (1991–1992, Japan) a.k.a. Jetman
Kyōryū Sentai Zyuranger (1992–1993, Japan) a.k.a. Zyuranger; Galaxy Rangers
Gosei Sentai Dairanger (1993–1994, Japan) a.k.a. Dairanger; Star Rangers
Ninja Sentai Kakuranger (1994–1995, Japan) a.k.a. Kakuranger; Ninja Rangers
Chōriki Sentai Ohranger (1995–1996, Japan) a.k.a. Ohranger
Gekisou Sentai Carranger (1996–1997, Japan) a.k.a. Carranger
Denji Sentai Megaranger (1997–1998, Japan) a.k.a. Megaranger
Seijuu Sentai Gingaman (1998–1999, Japan) a.k.a. Gingaman
Kyuukyuu Sentai GoGoFive (1999–2000, Japan) a.k.a. GoGoFive
Mirai Sentai Timeranger (2000–2001, Japan) a.k.a. Timeranger
Hyakujuu Sentai Gaoranger (2001–2002, Japan) a.k.a. Gaoranger
Ninpuu Sentai Hurricaneger (2002–2003, Japan) a.k.a. Hurricaneger
Bakuryū Sentai Abaranger (2003–2004, Japan) a.k.a. Abaranger
Tokusou Sentai Dekaranger (2004–2005, Japan) a.k.a. Dekaranger
Mahou Sentai Magiranger (2005–2006, Japan) a.k.a. Magiranger
GoGo Sentai Boukenger (2006–2007, Japan) a.k.a. Boukenger
Juken Sentai Gekiranger (2007–2008, Japan) a.k.a. Gekiranger
Engine Sentai Go-onger (2008–2009, Japan) a.k.a. Go-onger
Samurai Sentai Shinkenger (2009–2010, Japan) a.k.a. Shinkenger
Tensou Sentai Goseiger Goseiger (2010–2011, Japan)
Kaizoku Sentai Gokaiger (aka Gokaiger) (2011–2012, Japan)
Tokumei Sentai Go-Busters (aka Go-Busters) (2012–2013, Japan)
Unofficial Sentai Akibaranger (aka Akibaranger) (2012–2013, Japan)
Zyuden Sentai Kyoryuger (aka Kyoryuger) (2013–2014, Japan)
Ressha Sentai ToQger (aka ToQger) (2014–2015, Japan)
Shuriken Sentai Ninninger (aka Ninninger) (2015–2016, Japan)
Doubutsu Sentai Zyuohger (aka Zyuohger) (2016–2017, Japan)
Uchu Sentai Kyuranger (aka Kyuranger) (2017–2018, Japan)
Kaitou Sentai Lupinranger VS Keisatsu Sentai Patranger (aka Lupinranger VS Patranger) (2018–2019, Japan)
Super Sentai Strongest Battle (2019, Japan)
Kishiryu Sentai Ryusoulger (aka Ryusoulger) (2019–2020, Japan)
Mashin Sentai Kiramager (aka Kiramager) (2020–2021, Japan)
Supercar (1961–1962, puppetry)
Supergirl (2015–2021)
Superhuman Samurai Syber-Squad (1994–1995, US; adaptation of Gridman the Hyper Agent)
Superman (franchise)
The Adventures of Superman (1952–1958)
The Adventures of Superboy (1961, pilot)
Superboy Adventures of Superboy, The (1988–1992)
Lois & Clark: The New Adventures of Superman (1993–1997)
Smallville (2001–2011)
Superman & Lois (2021–present)
Surface (2005–2006)
Survivors (franchise):
Survivors (2008–2010, UK)
Survivors (1975–1977, UK)
Swamp Thing (franchise):
Swamp Thing (1990–1993)
Swamp Thing (2019)
Animation:
Saber Marionette (franchise):
Saber Marionette J (1996–1997, Japan, animated)
Saber Marionette J to X (1998–1999, Japan, animated)
Saber Rider and the Star Sheriffs (1987–1988, Japan, animated)
Samurai 7 a.k.a. Samurai Sebun (2004, Japan, animated)
Samurai Jack (2001–2004, 2017, animated)
Savage Dragon (1995–1996, animated)
Sealab 2020 (1972, animated)
Sealab 2021 (2000–2005, animated)
Secret of Cerulean Sand (2002, Japan, animated)
Secret Saturdays, The (2008–2010, animated)
Sectaurs (1985, animated)
Serial Experiments Lain (1998, Japan, animated)