The show 'bible' originally had Mel as having a younger sister living with her. This character was dropped and replaced by Jess.
This received a nod in one episode, where Mel claims to be Jess's older sister in order to have Jess be covered by Mel's medical insurance.
The series was never released on DVD in full. Lion's Gate did release a 'movie' of about three episodes compiled and edited together that they called Alien Tracker. This was thought by many to be a move to see how well DVDs would sell. But, the fans saw it as a piece of junk and refused to spend money on it, possibly causing the studio to think full season DVDs wouldn't sell.
SciFi Channel briefly aired the series, but only made it through a few episodes before pulling it.
The fans did make an attempt to save the series, but failed to even reach the 5000 name goal in the petition. And the effort was beset by sabotagers, who used the names of legitimate signers to sign again with negative, trollish comments.