This episode marks Stargate SG-1 (1997) overtaking The X-Files (1993) as the longest running North American science fiction series at that time, though it was overtaken by Smallville (2001) in 2011. The X-Files regained the record in 2018.
This is the first time in the Intro where you see Vala go through the gate at the end, where she's running to catch up and Daniel waits for her. The previous episode is where Vala officially joined SG-1.