Question about Episode 1 + 9th Chevron

[zeroth]

When Eli is watching Daniel Jackson on the video, Daniel mentiones a "9th chevron address in the ancient database."

I was watching this before I had finished Atlantis, and thought I'd surely ruined some plot twist for myself. But after finishing Atlantis, I came to the conclusion that this whole 9th chevron business was just made up in SGU's first episode.

Or was it? was there something I missed in SG-1 or Atlantis?

[Stargater276]

Well, every Stargate has nine chevrons.

There is one deleted scene from Atlantis that might be what you're looking for though.

[glennh73]

That was cool thank you