Here is some news from Wiki:
Human Target
The second season continued the drop in viewers and premiered to 6.59 million viewers.
[38] Viewership increased at the end of the second season, when the show aired in special time slots. Notably, episode 12 which aired after
American Idol, received 9.3 million viewers, a season-high, and the best ratings the series has had since the beginning of the first season.
Hopefully the time-slot move will help along with the exposure after *shudder* American Idol. They want this show to succeed it seems. Which is nice. Unfortunately, Fringe has been moved to Friday's and that sucks.