NBC has given a full-season order to its new Monday night sci-fi aquatic drama “Surface.” The show, which premiered Sept. 19 at 8 p.m. (ET), scored a 3.4 in the adults 18 to 49 demographic Monday, according to Nielsen Media Research. That was a 13 percent increase in the demo from its previous week.

NBC announced earlier in October that it had given a full-season pickup to its sole new comedy of the fall season, “My Name Is Earl.” The network has made one scripted cancellation, the new Friday medical drama “Inconceivable.”

“Surface” is produced by NBC Universal Television Studio. Twin brothers Josh and Jonas Pate are creators and executive producers.