What kind of genres are you into? It'd help narrow down recommendations.
I'm a big fan of For All Mankind. It's an alt-history scifi series from Ronald D. Moore (Battlestar Galactica, 2003). The fourth season just concluded last month too, so it'll keep you occupied for awhile.
Oh well. I guess this shouldn’t come as much of a surprise considering the show’s disinterest in the source material and Paramount’s precarious position these days.