Re: Why the random episiodes?
Season eight was the highest ever rated season of SG1 and it was meant as the end of the series but the show was renewed again. Given the amount of money spent on the Ori village and the major league guest stars of the final two seasons I don't think they gave up on the show.
The greatest science fiction series of all time is
Doctor Who! And I'll take you all on, one-by-one
or all in a bunch to back it up!"
--- Harlan Ellison, from his introduction
to the PINNACLE series of Doctor Who books