Continuity mistake: When the Jacks are talking to each other right at the end, the camera goes back and forth from looking over each of their shoulders at the other one. If you look closely, the false Jack's earlobe structure changes when we see him from behind.
Character mistake: At the beginning of the episode, O'Neill refers to the planet as P3X-989. When he awakes as an android, he says "Welcome to PX3-989." The P3X becomes PX3. (00:03:35)
Coombs: I knew I should have updated my will before agreeing to off-world assignments.
Felger: You are not going to die, Coombs.
Coombs: Oh, come on, Felger. We might as well be wearing red shirts.
Felger: I don't get that.
Trivia: Some of Stargate's permanent cast and most of its guest stars have appeared on The Outer Limits.
Question: What was report 30185 and why wasn't Mitchell permitted to read it?
Answer: This answer is incorrect, because after Mitchell said, I'm being parked on a Samantha, in a very serious tone, said seriously we can't tell you about 30185.
To clarify this entry, what Mitchell asked is "Oh, I'm being punk'd, aren't I?" The joke in the scene was 30185 was too classified for Mitchell to know, but then they turn around and tell Vala. O'Neill isn't really Mitchell's father, they were joking around. But then Samantha does honestly say they can't tell them about 30185. From there we never learn what it is.
Chosen answer: Report 30185 is a joke report referring to the time when SG-1 go back in time to 1969 in the episode '1969'. The joke is that Colonel O'Neil knocked up a hippie and made sure Mitchel was taken care of throughout his life, like how he got into the 302 program while his buddy, a better pilot, did not.