What I noticed in the first five minutes.

I noticed in the first sequence of the Final Cut they make the sequence shorter where the Ga'ould first arrive at the beginning. They cut out the Stargate causing seismic disruptions which causes the problem. Later on in the series Carter explains why the Gate no longer causes the seismic disruptions (because they added stabilizers) If someone where to watch the new cut and then watch on throughout the series they wouldn't understand why Carter is explaining this because it never happened to the viewer.