The CW’s supernatural drama delivered a higher rating in the valuable adults 18-49 demographic than either NBC’s comedies or ABC’s drama in the 8 p.m. hour. Though TVD had some major plot twists last night, the numbers weren’t hugely high — with 2.9 million viewers and a 1.3 rating, the show jumped 30 percent from last week, yet was still within its usual performance range (read Mandi Bierly’s TVD recap here). But that was still enough to top the hourly average of Community plus Parks and Recreation on NBC, as well as the second week of Zero Hour on ABC. The latter dropped 21 percent from its premiere to a 1.1 rating (we’re probably about one more episode away from being able to use a “Zero Hour gets zero rating” headline). Still, there was some good news for ABC: Grey’s Anatomy rose 7 percent despite a weakening lead-in and facing American Idol this week.