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.
Tag Team Trial: Part 1 - S1-E10
Continuity mistake: In the opening scene, Crowler is frustratedly walking through the corridors of the academy and walks past several Slifer Red students. In an overview angle, there are 5 students, with two of them standing by a door to the left of Crowler. In the next shot, Crowler is shown walking past the door, but there is no sign of the two students. (00:00:10)