Speaking of Defying Gravity, I saw it being advertised on Foxtel's Arena channel on the weekend which I thought was interesting. In fact I think the first episode was on tonight.
As for Stargate Universe, I've never really been into the whole "Stargate" thing, although I know some guys at work who are HUGE fans. But I think I might give this one a go.
Netwolf, I agree with you wholeheartly on the Star Trek series. I only just recently got back into it and I loved it. Watched Enterprise for the first time towards the end of last year and I thought it was great. And Voyager (which actually inspired me to get into Astromony) I watched at the start of the year and I picked up where I left off when it first came out (about Season 4) and thoroughly enjoyed it.
But alas, I just don't think TV is interested in Sci Fi anymore.