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: The shot after Dox summons Kaiser Seahorse, an overview angle is shown and the Kaiser Seahorse is directly in front of Dox. Later on, after Dox summons Kazujin, the Kaiser Seahorse is now to the left of where it was originally. (00:07:55 - 00:08:50)