Ugh, Dollhouse looks bad. Eliza Dushku is truly a terrible actress. She should concentrate on walking around naked instead.
I agree, the trailer was awful. I wonder though, what was the Firefly teaser like? I did a search and couldn't come up with anything other than wretched fan-made stuff.
Also, compared to the original British version, Life on Mars doesn't look too appealing. Good concept, but given to David E. Kelly (of Ally McBeal/Boston Legal fame)? Ugh.