From Syfy's (US) schedulebot:
STARGATE ATLANTIS - 5pm Weekday Rotation
Jul 20 Thirty-eight Minutes - Guest stars include Paul McGillion, Craig Veroni, Christopher Heyerdahl, Ben Cotton and David Nykl.
Jul 21 Suspicion - Guest stars include Paul McGillion, Dean Marshall, Christopher Heyerdahl and David Nykl.
Jul 22 Childhood's End - Guest stars include Courtenay J. Stevens and Dominic Zamprogna.
Jul 23 Poisoning The Well - Guest stars include Alan Scarfe, Allison Hossack, Paul McGillion and Dean Marshall.
STARGATE SG-1 - 6pm Weekday Rotation
Jul 20 The Shroud - Guest stars include Morena Baccarin, Robert Picardo and Richard Dean Anderson.
Jul 21 Bounty - Guest stars include Anne Marie DeLuise, David Lovgren, Mike Dopud, Eric Steinberg and Bill Dow.
Jul 22 Bad Guys - Guest stars include Joshua Malina and Ron Canada.
Jul 23 Talion - Guest stars include Tony Amendola, Craig Fairbrass, Eric Breker, Peter Kent and Lexa Doig.
Stargate: Continuum airs on July 24 at 3:00 a.m. - Guest stars include Cliff Simon, Don S. Davis, William DeVane, Jacqueline Samuda, Ron Halder, Steve Bacic, Peter Williams, Vince Crestejo and Jay Williams.
Stargate episode graphics courtesy of GateWorld