Revealing mistake: When the three are seen running to Apophis' ship (after taking out the Jaffas), the branches of the trees are shown to move because of the great speed they ran at. However, none of the leaves on the ground move.

Stargate SG-1 (1997)
1 revealing mistake in Upgrades - chronological order

Other mistake: When O'Neill first goes to visit Teal'c in his cell the symbol of Apophis on Teal'c's head is upside down.
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: How long was Vala Mal Doran a host to Qetesh?





Chosen answer: It's never actually mentioned on the show, though in the 'Continuum' universe, she says she's been with Ba'al for 50 years.
MoonFaery ★