Stargate SG-1
Unending
TV Flash files “Unending” as a desk essential hour — Stargate SG-1 (1997–2007) on Showtime/Syfy, season 10, episode 20, aired 2007-06-22, 60 min.
From the desk
How this hour is filed
This leaf is S10E20: listed hour 213 of 213 in the Stargate SG-1 guide, last listed hour of season 10. It aired 2007-06-22 (60 min). The listed hour before it is “Dominion” (S10E19). No later hour is listed in this guide.
Essential hour: “Unending”. Unending: the closer that refuses a simple disconnect — SG-1 filed as loyalty, not a movie leftover.

Catalog log
Broadcast listing — not a TV Flash recap.
The SG-1 team extends a small time frame to several years to survive an attack of the Ori and tries to find a solution to solve their problem.
Viewer FAQ
Where does Unending sit in the Stargate SG-1 guide?
S10E20 is listed hour 213 of 213 — last listed hour of season 10, season 10 episode 20.
When did Stargate SG-1 S10E20 air?
Unending aired 2007-06-22 and is listed at 60 minutes.
Is it connected to the movie?
Yes — it continues and reworks the 1994 Stargate film into long-running series mythology rather than a one-off adaptation.
In the series
Why this series still plays
A military-science team dials an ancient gate, fights parasitic false gods, and turns a 1994 film into a ten-season franchise engine. Richard Dean Anderson's O'Neill brings wry competence; Carter, Jackson, and Teal'c make exploration feel like unit loyalty. Showtime to Syfy, Atlantis and Universe later. Comfort portal sci-fi that still builds a cosmos.
Showtime, July 27, 1997, later Syfy: a military-science team dials an ancient gate, fights parasitic false gods, and turns a 1994 film into a ten-season franchise engine. Brad Wright and Jonathan Glassner built the long haul. Richard Dean Anderson's Jack O'Neill brought wry competence; Amanda Tapping's Samantha Carter, Michael Shanks's Daniel Jackson, and Christopher Judge's Teal'c made exploration feel like unit loyalty under fire. Ten seasons through 2007 — among the longest U.S. sci-fi series runs. Portal…
Filed against
- Richard Dean Anderson as Jack O'Neill
Richard Dean Anderson’s Angus MacGyver made paper clips a sacrament — anti-gun action hero, Phoenix Foundation as science-fair ingenuity — then dialed Stargate SG-1 as O’Neill’s wry competence for ten seasons. The verb entered the…
- Amanda Tapping as Samantha Carter
Amanda Tapping’s Samantha Carter made Stargate SG-1 feel like unit loyalty instead of a film leftover — military science, an ancient gate, parasitic false gods, ten seasons from Showtime to Syfy. Richard Dean Anderson’s wry competence…
- Christopher Judge as Teal'c
Christopher Judge played Teal'c on Stargate SG-1 — a military-science team dialing an ancient gate, fighting parasitic false gods, turning a 1994 film into a ten-season franchise engine. Richard Dean Anderson's wry O'Neill, Carter and…
- Michael Shanks as Daniel Jackson
Michael Shanks’s Daniel Jackson kept Stargate SG-1 from becoming only a rifle and a wormhole — 1990s military-science team dialing an ancient gate, parasitic false gods, Richard Dean Anderson’s wry O’Neill, Carter and Teal’c as unit…