NBC's America's Got Talent not only held on to the top spot on the weekly Nielsen TV ratings list for last week, it nabbed the second slot as well, as viewers tuned in to see which contestants would move into the semifinal round. CBS remained the most-watched network overall, however, landing seven shows in the top ten. Yet all four major networks continued to show overall dismal numbers. CBS won the week averaging just a 3.8 rating and a 7 share. NBC was close behind with a 3.6/6. Fox came in at a 3.2/6, while ABC, which had a lot riding on a revival of Who Wants To Be A Millionaire -- but couldn't cash in -- trailed with an average 2.9/5. Among the nightly newscasts, the gap between leader NBC Nightly News and ABC World News shrank as the Bryan Williams telecast attracted 7.38 million viewers to Charles Gibson's 7.04 million. The Katie Couric-anchored CBS Evening News remained far behind with 5.34 million.

The top ten shows of the week according to Nielsen Research 1. America's Got Talent (Tuesday), NBC, 7.1., 12; 2. America's Got Talent (Wednesday, 9 00 p.m.), NBC, 6.6/11; 2. NCIS, CBS, 6.6/12; 4. Two and a Half Men, CBS, 5.5/9; 5. The Mentalist , CBS, 5.4/10; 6. The Big Bang Theory, CBS, 5.2/8; 7. 60 Minutes , CBS, 5.1., 10; 8. Csi Crime Scene Investigation, CBS, 4.9/8; 9. Big Brother 11 (Tuesday), CBS, 4.8/8; 10. Dateline NBC (Monday), NBC, 4.7/8; 10. (Tie) Who Wants to Be a Millionaire (Sunday), ABC, 4.7/8.