Yeah, Dollhouse has picked up a good bit since the first few episodes. A lot of shows start with a blank-of-the-week, but Dollhouse dropped that fairly quickly and is setting up a nice plot arc.
But aye, the first two or three episodes of Firefly really should be required viewing for everyone. Indeed, I should petition to have my local school district make it part of the curriculum.
Ah, curse your sudden but inevitable betrayal!