Question: I have a question about the correction about the Asgard not beaming Teal'c because they knew about him helping SG-1. This happened in the alternate reality. Would the alternate Asgard know about Teal'c turning against Apophis?
Answer: The Alternate Samantha Carter has travelled to enlist the Asgard's help. It stands to reason that she would have explained the situation to them fully before they arrive.
Nemesis (1) - S3-E22
Question: In several of the episodes, when they show an exterior shot of the Cheyenne Mountain Complex, there is a Humvee with "Sgt. Mack" stenciled on the windshield. As the military doesn't personalize its equipment (except for fighter jets), is this an Easter egg for somebody? (00:00:10)
Answer: When I joined the Colorado national guard in 2006 I was assigned a HMMWV with my name on the windshield in those exact black diecut vinyl letters.
Answer: The external shots are filmed at the real Cheyenne Mountain, with real military equipment and personnel.
Answer: Vehicles usually had the driver's name stenciled on them in the 80s and 90s.
New Ground - S3-E19
Question: Why does the guy who was interrogating SG 1 think they know how the dead man they found was killed? Why does he think they're lying? Why doesn't SG 1 tell their interrogator that they weren't there when the man was killed?
Answer: He knows that SG-1 didn't kill the man because they were in custody when he died. He suspected that there was a fourth member (Teal'c) and was trying to get them to admit it.
Answer: The planet had two groups of people that were basically at war with each other. The guy interrogating SG-1 was part of the Bedrosian military and thought SG-1 was working with, or part of, the Optricans (their enemy). He simply doesn't trust his enemy and thinks they're responsible, and he certainly isn't going to listen to reason. Plus, he's trying to preserve his religious beliefs and doesn't want to think his people came through the Stargate.
Chosen answer: Skaara has a Goa'uld in his head controlling him. Removing it returns him to a normal human being. Teal'c has a Goa'uld in a sac in his stomach. The Goa'uld in Teal'c acts as his immune system and helps him to have a very long life span. Removing it would kill him.