I need a new show to get into while a) my boyfriend is out of town for two months and b) while I work out at the gym, and right now my top choices of shows that are on Netflix and that I've been meaning to check out are

1) Firefly

2) Dr Who

3) Battlestar Galatica

Any thoughts or recommendations, Jezzies? Firefly seems like the type of thing to just devote a weekend too since it seems short but addictive (yay/nay?), and I've been dying to get into Dr Who but I have NO idea where to start (seriously, Netflix has like 20 seasons, and the oldest ones seem really, really old).