Weekly roundups of the most-watched programmes on American broadcast and cable television, with data provided by Nielsen Media Research.
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Nielsen Ratings Roundup

Ratings lower for 'Idol' season premiere
Jan 15, 2009 - 30.1m viewers tune in to see the start of American Idol's 2009 season.
Jul 24, 2008
- Ant & Dec show makes weak start in US
Ant and Dec's US primetime TV debut fails to make an impression in the ratings.
Jun 23, 2008
- Disney Channel scores hit with 'Camp Rock'
Camp Rock rates as the Disney Channel's second most-watched movie premiere ever.
Jun 19, 2008
- Piper's 'Call Girl' sets US ratings record
The US debut of Secret Diary Of A Call Girl sets audience records for Showtime.
Jun 05, 2008
- US 'Lost' finale is least popular so far
Lost's two-hour finale was a hit in the US - despite its audience falling 17% year-on-year.
Apr 03, 2008
- Strong premiere for 'Hell's Kitchen' in US
Hell's Kitchen draws strong ratings for Fox in its first showing outside of the summer.
Mar 12, 2008
- New legal drama struggles on US debut
New drama Canterbury's Law draws an unimpressive audience for its first outing in the US.
Mar 06, 2008
- 'New Amsterdam' drama starts well in US
Drama series New Amsterdam attracts a strong audience on its first outing in the US.
Mar 05, 2008
- Royals impress US audience for ABC
An edited-down version of the Royal Family at Work documentary is a ratings winner on US television.
Feb 26, 2008
- Oscars get lowest US TV audience ever
Oscars coverage in the US was watched by fewer viewers than ever before.
Feb 05, 2008
- Super Bowl sets record sport audience
This year's Super Bowl was America's most watched sports event ever, audience figures show.
Jan 17, 2008
- 'American Idol' sees ratings dip
4m fewer viewers tune in for the season premiere of American Idol.
Dec 27, 2007
- NBC tops Christmas Day ratings
NBC tops the Christmas Day viewing numbers with a two-hour Deal or No Deal.
Oct 15, 2007
- Sharp fall for 'Friday Night Lights'
Friday Night Lights drops close to a fifth of its audience after ABC rolls out Women's Murder Club.
Oct 10, 2007
- 'K-Ville' sees 31% audience decline
Numbers for the second week of the US TV season are in, and it's a mixed picture for several new shows.
Oct 04, 2007
- 'CSI', 'Dancing', 'Grey's' top 20m viewers
The full first week numbers from America's 2007-08 TV season are in.
Oct 03, 2007
- 'Dexter' gets off to good second season start
1m viewers tune in for the second season premiere of Showtime's Dexter. - ABC, NBC vying for 18-49 ratings win
With the 2007-08 TV season now a week old, ABC and NBC emerge as front runners in the ratings race.
Sep 28, 2007
- Big bows for 'Bionic', 'Private Practice'
NBC's Bionic Woman and ABC's Private Practice debut to big audiences.
Sep 17, 2007
- 'Torchwood' debuts to 500,000 in America
Torchwood draws nearly half a million viewers in its first US outing.

