Cheyenne Mountain Complex and Stargate are inseparably connected in my mind.

And wargames too

I hate to be persnickety, but the announcement is:

"Unscheduled offworld activation"

Not to be even more persnickety, but "Unauthorized incoming traveler" was also used in earlier seasons, including in the episode with Charlie and the Reetou.

you're right, can't believe I got it wrong.

Nah, the euphemism treadmill is always working.

Came here to write a SG-1 comment, glad I’m not the only one. Such a great series/films..

SG-1 reruns regularly showing on comettv.com while they last . . .

"Aaaaaaaand were walking"