"One of the first things that Christopher and Amanda and I had done when we first showed up for the first season of the show was we walked up to where they were still building the S.G.C. set. We walked up to where the briefing room was going to be, and we looked down at this huge set and this huge prop Stargate, and we all just sat there stunned. It was like, 'Wow, this is real. They're building this for us. This is the beginning of something amazing.'
So we made a point, at the very end, after we'd wrapped, of running back upstairs to that briefing room and taking a final look. It was bittersweet, but at the same time it was a nice way to bookend the emotional journey we'd been on for a decade."
Michael Shanks, SciFi Wire
http://www.gateworld.net/news/features/stargate_sg-1_farewell.shtml speaks more and fuller than I ever could about Stargate SG-1. I've never been a huge fan of the show but, somehow, it always managed to keep me intrigued enough to keep watching.