The fourth season of Stargate Atlantis debuts on Sept. 28 and will air Fridays at 10 p.m. Atlantis will have a midseason finale on Dec. 7, a finale that will feature the return of Torri Higginson as Dr. Elizabeth Weir. The Atlantis team must ally itself with a known enemy to join forces against an even greater foe.

Beginning in October, SCI FI will air Battlestar Galactica "mini-sodes" entitled "Razor" during episodes of the hit series Flash Gordon, Fridays at 9 p.m. The two-to-three-minute shorts will lead into the Nov. 24 premiere of "Razor," the two-hour Battlestar special TV movie, which will tell the story of Lee Adama's (Jamie Bamber) first mission as commander of the Battlestar Pegasus and will reveal the story of how Adm. Cain (Michelle Forbes) served her ship during the original Cylon attack on the Colonies. "Razor," which airs at 9 p.m., will provide a backdrop to events in the rest of Battlestar, which returns for its fourth and final season in early 2008. "Razor" is written by Michael Taylor and directed by Felix Alcala. It also stars Katee Sackhoff and Tricia Helfer and introduces Stephanie Jacobsen as Kendra, Adm. Cain's protege.

Throughout the fall, SCI FI's summer series will have their finales: Who Wants To Be a Superhero? at 9 p.m. Sept. 13, Painkiller Jane at 10 p.m. Sept. 21, Eureka at 9 p.m. Oct. 2 and Doctor Who at 8 p.m. Oct. 5.

In December, SCI FI will air its original miniseries Tin Man; the exact date and time are yet to be determined