I don't care about Blake's 7 either, but like with original Battlestar Galactica - another show I'm not a big fan of - I think the basic idea
of the show could make for a good series.
So I'd actually be quite interested to see if this goes to series and if it's any good.
I also don't want to see it turned into a True Blood type Orgy (A little sex is fine, but, there's no need to have multiple sex scenes every episode)
There's simply no way a show on Syfy is going to have graphic sex or anywhere near the league of sweaty naked bodies you'd find in every other HBO series. At most you'd get the coy sexuality of something like Farscape.
...though going for an incredibly grim, NuBSG tone isn't out of the question.