Despite sneaking away with a rating of PG Stargate SG-1 contains graphic nudity with not just the butt-cheeks but breasts and vagina being visible as well which is a horrible way to start off a series especially one their trying to pass off as PG. It also contains graphic scenes kids and perhaps even some adults would find disturbing such as when the Gou'ald enter someone's body. This is a serious issue since there are many shows out that have a more lenient rating than they should such as Jaws(lots of blood and gore/pg rating), Poltergeist (nightmare central/pg rating), Gremlins(lots of swearing and violence/pg) etc.
Review of Children of the Gods
