multiple cameos throughout the series, most of which were uncredited, non-speaking roles. Several of them involved him and Dan Shea (Siler) standing in the background holding a large over-sized adjustable wrench.
If we want to find out who's behind this, we have to do what the Asgard do.
Daniel: You mean bluff?
Jack O'Neill: Yep. We just need to do it without revealing what we know.
Daniel: Which is nothing.
Jack O'Neill: Right. But they don't know we know nothing.
The very idea that most alien civilizations outside of Earth can speak English is a linguistic impossibility. English was developed long after the stargates were used to populate these other planets and furthermore, English is an amalgamation and evolution of other early languages unique to Earth after the Gou'ald. Nevertheless, production logistics and writing logistics made it more practical for alien encounters to speak English as to eliminate the repetition of Daniel deciphering the language and then translating the language to the rest of the team for any episode dealing with an alien race which were the majority of the episodes. This also helped eliminate the need for the writers to invent a new language for every new alien civilization encountered. This practice carried over into Stargate: Atlantis as well.
Various episodes have been edited for syndication, removing occasional nudity and swear words that were allowed in the first-run Showtime viewings.
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We asked Doctors Jo Wilson, April Kepner, and Andrew DeLuca to tell us the episodes of the show that they think are the most essential to understanding their characters.