Quote Originally Posted by Cuddles
StarGate - and I think, the #1 was the fact that it was the "first" stargate found,..........
The show producers elected to add the SG-1 to the title. Their motive is not just using the Stargate name is unclear to me, but maybe they were just trying to distinguish it from the movie. The SG-1 term comes from the designation of the "team" of people who go through the gate. Richard Dean Anderson's team of 4 people was the first team as was designated SG-1. In the stories there are other teams as well, designated in increasing numbers (a patch showing SG-22 was seen on a recent show). Sometimes the actors cross over into the SG-1 stories, but usually the show just focus on the SG-1 team that it is named for. Starting season 8, RDA was promoted and is no longer part of the team, but somehow they still come up with an occasional need for him to go through the gate.