Hammer Down - S6-E7
Visible crew/equipment: Season 6, episode 7 "Hammer Down": Just after Mac and Ray have finished briefing the other officers as they are about to begin a chase, there is an actor's red T-mark on the floor, visible just as the officers begin to walk towards the scene. (00:34:55)
Rising (1) - S1-E1
Continuity mistake: When they first arrive on Teyla's planet, the DHD is close to the gate. When the wraith attack, the DHD is much further from the gate.