A cut scene involved Maybourne displaying Solomon-like wisdom in a dispute over ownership of a duck. He orders the duck be cut in half but neither of the complainants reacts as in the Biblical story. Maybourne then declares that neither man is deserving of the duck, and he orders it cooked for his lunch.
The 'ditty' that the villagers are torturing when O'Neill arrives from the SGC sounds like the theme song for MacGyver (1985).
According to the director's commentary on the DVD, Wayne Brady was a huge fan of the series and willing to play a character in it and got a guest spot as Trelak.
When Dr. Jackson quips "no phones, no lights, no motorcars" at the comparatively primitive state of the culture, he's directly quoting the Gilligan's Island (1964) theme song.
The first draft of the script included the younger O'Neill clone. However, Michael Welch was unavailable due to scheduling conflicts with Joan of Arcadia (2003).