In our summer of reality TV, "America's Got Talent" and Gordon Ramsay continue to attract fans. So does CBS' "Big Brother," which displayed real ratings power last week.

The most-watched programs last week nationally:

1. "America's Got Talent" Tuesday, NBC, 9.5 million

2. "America's Got Talent" Wednesday, NBC, 9.4 million

3. "NCIS," CBS, 9.1 million

4. "60 Minutes," CBS, 8.5 million

5. "The Big Bang Theory," CBS, 7.5 million

6. "Under the Dome," CBS, 7.3 million

7. "Big Brother" Sunday, CBS, 7.2 million

8. NFL Preseason Sunday Night Game, NBC, 7 million

9. "NCIS: Los Angeles," CBS, 6.97 million

10. "Big Brother" Wednesday, CBS, 6.63 million

"Big Brother" Thursday ranked No. 11 with 6.6 million viewers.

In prime time, CBS was tops with total viewers, averaging 5.8 million. The other broadcast networks: NBC with 5.1 million, ABC with 4 million, Fox with 2.6 million and The CW with 900,000. But CBS and NBC tied for leadership with the 18-to-49 age group.

Favorites of the national 18-to-49 age group were "Big Brother" Sunday, "Big Brother" Wednesday, "Big Brother" Thursday, the NFL Sunday Night game, "America's Got Talent" Tuesday, Fox's "MasterChef," "America's Got Talent" Wednesday, NBC's "American Ninja Warrior," "The Big Bang Theory," "Under the Dome," an NFL preseason game Friday on CBS and Fox's "Hotel Hell."

Orlando's Extreme Dance Company performed last week on "America's Got Talent" and was later ejected.

The most-watched telecasts locally last week were:

1. "America's Got Talent" Wednesday, NBC, 185,692 viewers

2. "60 Minutes," CBS, 158,810

3. "America's Got Talent" Tuesday, NBC, 138,658