Season one it was a traditional adventure of the week style show that was popular at the time and before. because having a multi season story arc was unheard of and still more or less is today so the first season was traditional TV and only when mildly successful did it have the ability to spread its wings. and it did so so well that it forced other shows like DS9 to also have seasonal story arcs.
From what I've read, DS9 was heavily based on the Babylon 5 Bible which was pitched by JMS to Paramount years before. You might charitably say DS9 was the Guix to the Nix of Babylon 5: Same core ideas mapped onto different story universes. The earlier B5 Bible apparently even had a changeling security officer which evolved into the "changeling net" plot shown in the pilot episode.
> Season one it was a traditional adventure of the week style show that was popular at the time and before. because having a multi season story arc was unheard of and still more or less is today so the first season was traditional TV and only when mildly successful did it have the ability to spread its wings. and it did so so well that it forced other shows like DS9 to also have seasonal story arcs.
Unfortunately incorrect! JMS had the entire plot and "bible" written out start to finish before the show was produced, and the show was approved based on that bible. It had all the room it planned for and needed at the start. There were even built-in "escape hatches" planned for if actors had to drop out (which happened to Michael O'Hare, unfortunately)