President Obama's visit has set a standard for "The View." His appearance with a convalescing Barbara Walters and her co-hosts reached 6.6 million viewers last week, the biggest audience ever for a show that's been on the air since 1997, the Nielsen Co. said.

It was believed to be the first time a sitting president has visited a daytime talk show. Obama was indirectly responsible for the previous record for "The View," when 6.2 million people watched the day after he was elected president in 2008.

Obama reached more people on "The View" than he ever has on the Sunday morning political shows "Meet the Press," "Face the Nation" and "This Week," Nielsen said.

Nickelodeon's "iCarly" had a big night Friday, with 7.7 million people watching a special episode that offered a glimpse of the lead character's room for the first time, Nielsen said. That was a bigger audience than all but seven shows on prime-time broadcast television last week.

1 America's Got Talent, Wed. (NBC)

2 NCIS (CBS)

3 America's Got Talent, Tue. (NBC)

4 The Bachelorette (ABC)

5 Two and a Half Men (CBS)

6 The Big Bang Theory (CBS)

7 60 Minutes (CBS)

8 The Mentalist (CBS)

9 NCIS: Los Angeles (CBS)

10 Big Brother, Sun. (CBS)

11 Wipeout, Tue. (ABC)

12 Big Brother, Wed. (CBS)

13 Rookie Blue (ABC)

14 Big Brother, Thu. (CBS)

15 Wipeout, Thu. (ABC)

16 Hell's Kitchen (Fox)

17 Criminal Minds (CBS)

18 CSI: NY (CBS)

19 America's Funniest Home Videos (ABC)

20 CSI: Miami (CBS)