I tried watching this when it first aired and abandoned it after the first two episodes. It just seemed, meh. Then later, out of sheer loyalty to Joss, I figured FINE I'll give it another try. I bought the DVDs and started over. I'm SO glad I did. It's so much more than I thought it was, and I absolutely love this series. It's his most underrated series, in my opinion. If you love Buffy or Firefly, then you know how great he is at subverting your expectations. Give this a try. Push through the first few episodes. You can thank me later.
Get Season One and Season Two or the complete collection Blu-ray set on DVD on Amazon.