TV Ratings and Online Audiences... Or, Where to Find Skeet Ulrich's Bio

The TV ratings system is broken. Everyone knows it, but nobody wants to admit it. Nielsen ratings struggle to accurately measure audience quantity (limited tracking of DVR usage and online viewers) and quality (are viewers engaged? are they skipping the ads?). However, admitting so would undermine the delicate balance TV networks share with their advertisers.

I caught an interesting segment on KCRW's "The Business" podcast about TV series that find themselves on the "bubble," i.e. at risk of getting canceled. The producer of CBS's Jericho, "a post-apocalyptic drama starring Skeet Ulrich" (shouldn't that description alone put it on the chopping block?), explained how they received a temporary stay of execution when their small but loyal audience protested network plans to cancel show. The interview raised questions about the validity of Nielsen ratings and how an fervent online audience can bring additional perspective to the performance of a show.

All this talk of measurement gave me an itch to look at some real data. I tracked down the Nielsen audience size (Subscription required) for TV series over the 2006-2007 TV season. Then I pulled from comScore (a Juice client and leading source for data about Internet traffic and usage behaviors) the unique visitors and time spent on websites of TV shows over the same September to May time period.

I had a few questions I was curious about:

  1. Which shows have dispropotionately larger internet audiences—an indicator of a loyal and rabid fan base? Are there other shows like Jericho that struggle to build a large TV audience, but have a strong online following?
  2. Which TV show sites have the most engaged audiences?
  3. What TV networks have been most successful at building online traffic to their sites? Which types of shows spawn online audiences?

The table below shows the top 20 TV series by ratio of monthly unique website visitors to average TV viewership. This metric suggests an ability to get viewers to look for more content, whether it is additional video, information about the actors, or discussion boards. If Jericho's 9.5 million TV viewers (tied for 48th overall) represents the proverbial bubble, there are eight other shows with bubble-level ratings that can also claim strong online support (highlighted in this list).

Ratings Table 1

I also wanted to get a sense as to the engagement of the online audience. Were people simply stopping by the website to check the TV schedule, or were they digging deep for more content? One measure that gets at this question is minutes per unique visitor. The top 20 websites are listed below. Interestingly, 12 of these sites are also found in the previous table. Jericho is one of four of the bad-Nielsen-ratings/strong-online-audience group that overlap with the table above. (NBC, if you are grousing about ratings for The Office, hopefully these numbers will make you feel a little better.)

Ratings Table 2

The final table addresses my third question about the TV networks and types of shows that are best at building an online audience. ABC has done more than twice as well as CBS in getting viewers online, which may be a reflection of the traditionally older CBS audience. Note: I pulled the top-end outliers (American Idol, You Think You Can Dance?, and Deal or No Deal) from the Network comparison.

The second half of the table brings those TV series back into the mix in the reality/contest category, and you can see the impact. I was surprised at the dearth of sitcoms on this list. It may be that a website for a sitcom doesn't typically make sense.

Ratings Table 3

With all the money spent on TV advertising, I can only hope the networks go beyond the top-line Nielsen ratings to try to get a complete picture of their audiences.

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License. All source code is released under a BSD License unless otherwise specified.

16 comments | Show all comments only the last 5 are shown


August 2, 2007
Paul Robinson said:

Just out of curiosity, why did you ignore Deal or No Deal in your conclusions? It has by *far* the biggest gap between Nielsen and website audience and it has the longest avg visit time online - yet you don't refer to it once.

I also agree with Hadley - you've spent time putting this stuff together, which is great, but you've not explained what the figures actually mean. Tufte would be ashamed of you! :-)


August 2, 2007
Zach said:

Hadley, You are correct in pointing out that I incorrectly used percentages when it isn't truly a percentage. The metric is intended to show the size of the online audience relative to the TV audience -- but it isn't as if one is truly a percentage of the other. 5.5% represents the ratio of one audience to the other (as shown in the column header). I find it a stretch to interpret 5.5% as 5.5x.
Paul, Good observation. I had suspected that "contest shows" like Deal or No Deal or American Idol drive traffic to their site by getting people to vote online or play an online version of the game (or look at photo galleries of the Deal models in skimpy dresses). In that sense, I was more interested in talking about shows that seemed to be creating loyal audiences through the characters and content of the show.


August 26, 2007
Jennifer Reed said:

I was a Nielson TV home. The amount of equipment that had to be placed in and on all my tvs, vcrs, video games etc. sucked. But overall it was kind of cool. Shows like House, Dateline NBC, and the entire cartoon network were watched. I have a large family and we made sure we watched television of substance not like the crap with Paris Hilton. It is kind of cool to feel you have a say in whats good tv. I did this for a few years until I moved. There was no money paid to participate except $30.00 every six months to cover the electric all the annoying equipment used. Furthermore, they wanted us to be very secretive and completely accurate in what we watched, advising us not to use the tv for company noise, etc.. Nielson, to me is very competent in how they research who watches what . They once even called me because the tv was on for several hours on the same channel and wanted to know why. It was because the kids were sick and watched cartoon network all that day. Please, I would not doubt Nielson, they are going to be the most accurate you could get unless you monitored every home in the entire world.


August 26, 2007
Zach said:

Jennifer, Thanks for sharing the details of the Nielsen family experience. I've always wondered what exactly was involved. My concern isn't whether they do what they set out to do well...it is that they don't attempt to capture the full picture. With DVRs/TiVos and online viewing, the outside-the-living-room picture is becoming increasingly relevant.


November 4, 2008
Tina said:

Hi Zach,
I am a student in economics at Harvard University and am looking for data on online viewer audiences for specific tv shows on a weekly basis. Did comscore have this data? do you have to pay for the data? do you have suggestions of how i could find this data?

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