Few television series really get me engaged the way Lost does, and Battlestar Galatica is one of them. Revitalizing the old 1978 classic concept, the show pits the survivors of the human race against the strange, spiritual and calculating Cylons who had laid waste to the rest of humanity. Leading them are the tandem of Commander Adama and President Roslin who, despite their differences, work things out for the continued survival of humanity. Trust me, the show has so many levels of depth and character it would be hard to really explain it all here.
Simply put, it definitely is worth watching and got me excited for the third season (unlike a very derivative superHERO show which I really don't understand caught so many people's attention). The show easily moves from war movie, to social dynamism, to relationships, to action, to political conflict and back again without ever losing the sci-fi vibe.
If you haven't seen it yet, I highly recommend you take time to check it out.
Trailer for Season 1:
The trailer, sadly, is a bad one. Couldn't find the original beautiful opening sequences of the show on YouTube.