"American Inventor" (9:00-10:02 p.m.) At 9:00 p.m., the finale of "American Inventor" built on its lead-in by nearly 2 million viewers (7.0 million vs. 5.1 million) and by 69% among Adults 18-49 (2.7/7 vs. 1.6/5). The unscripted series also was up versus the prior week in both Nielsen measures (6.6 million & 2.6/7). "American Inventor" increased its audience by 1.0 million viewers (6.4 million to 7.4 million) and by 21% in Adults 18-49 (2.4/6 to 2.9/7) from its first to its second half-hour. * [adsense:120x240:1:1]On average,"American Inventor" has improved the 9 o'clock hour for ABC by 3.7 million viewers (9.2 million vs. 5.5 million) and by 89% in Adults 18-49 (3.6/9 vs. 1.9/5), as compared to the Net's performance on the same nights last year. If you want to see the rest of the article, go to MediaNet.