I see that Atlantis is on Amazon Prime streaming ... I may binge it. I never saw the whole thing before.
#55 Stargate SG-1 and Atlantis is on the FREE Pluto tv.
I watch it using my Roku box.
It's got a good ensemble cast, especially starting with Season 2, and regulars from SG1 show up from time to time for a little crossover support. I actually enjoy it a touch more than SG1, because the evil Wraith (stylish space vampires, basically) are more fun villains than the Goa'uld. Well, most of them. Ba'al was pretty compelling.