So, after watching this, we have a split between the movie and the SG-1 series, or is this the Russian gate? They dug up the Egyptian gate in the movie, which I assumed was relocated to NORAD for the series, but here we unearthed the Egyptian gate and I assume it’s headed to the U.S. (and would be the gate on the ship from Continium).
But then I suppose the movie is not the canonical source for the series.
Why was Earth so special to have two (or three, counting Russia) gates where most planets had only one. The Ancients must have really liked Earth.