TAMi

TAMi

The Total Audience Measurement Index (TAMi) is a ratings system developed by NBC to include new media in the determination of audience size viewership. Below are available ratings for each episode of Heroes.

Season Ratings

Season Three

Airdate	Episode(s) click "show" for episode data	Mobile / VOD / Downloads	ISV	Television	Total	Last update
09/22/08	The Second Coming / The Butterfly Effect	154,122	9,117,625	24,528,000	33,799,747	11/11/08
09/29/08	One of Us, One of Them	76,632	5,075,298	14,881,000	20,032,930	11/11/08
10/06/08	I Am Become Death	73,772	5,085,631	13,580,000	18,739,403	11/18/08
10/13/08	Angels and Monsters	77,754	4,640,766	14,189,000	18,907,520	11/25/08
10/20/08	Dying of the Light	75,917	4,428,486	13,549,000	18,053,043	12/2/08
10/27/08	Eris Quod Sum	86,805	4,794,528	13,643,000	18,524,333	12/9/08
11/10/08	Villains	73,460	4,125,974	13,011,000	17,210,434	12/16/08
11/17/08	It's Coming	93,354	4,369,539	13,397,000	17,859,893	2/3/09
11/24/08	The Eclipse, Part 1	129,904	4,445,077	12,551,000	17,125,981	2/10/09
12/1/08	The Eclipse, Part 2	115,339	4,288,945	13,271,000	17,675,284	2/17/09
12/8/08	Our Father	126,198	4,373,096	13,192,000	17,691,294	2/17/09
12/15/08	Dual	212,795	4,860,334	13,076,000	18,149,129	3/3/09
2/2/09, 2/7/09	A Clear and Present Danger	111,485	3,672,773	18,027,000	21,811,258	3/10/09
2/9/09	Trust and Blood	103,196	4,108,411	13,437,000	17,648,607	3/24/09
2/16/09	Building 26	97,616	3,694,742	12,870,000	16,662,358	3/31/09
2/23/09	Cold Wars	112,387	3,551,531	12,360,000	16,023,918	4/7/09
3/2/09	Exposed	125,830	3,468,485	11,846,000	15,440,315	4/14/09
3/9/09	Shades of Gray	170,499	3,658,072	11,632,000	15,460,571	4/21/09
3/23/09	Cold Snap	149,464	3,447,352	11,214,000	14,810,816	4/28/09
3/30/09	Into Asylum	155,332	3,546,335	10,911,000	14,612,667	6/2/09
4/6/09	Turn and Face the Strange	169,431	3,412,731	11,232,000	14,814,162	6/2/09
4/13/09	1961	154,036	3,062,430	11,830,000	15,046,466	6/2/09
4/20/09	I Am Sylar	172,001	3,002,942	11,026,000	14,200,943	6/2/09
4/27/09	An Invisible Thread	154,863	3,066,022	11,263,000	14,483,885	6/2/09

	Archive Average	123,841	4,220,714	13,354,833	17,699,388
	Archive Total	2,972,192	101,297,125	320,516,000	424,785,317
	Season Total	3,378,382	102,014,811	326,041,000	431,434,193	6/2/09

Notes

• TAMi began being published by NBC during Season Three. Unlike Nielson Ratings, TAMi results use running totals that are updated each week. Thus, each ratings point in TAMi is called an exposure.
• TAMi is published weekly in PDF format in the Spotlight section (lower right corner) of the NBC Universal Media Village website.
• The ratings include listings for up to the five latest episodes of each show, and individual viewership numbers in terms of the following:
  • Mobile -- total streams of episodes to mobile devises such as cell phones and PDAs
  • VOD (Video On Demand) -- total on-demand cable/satellite viewing results as tabulated by Rentrak
  • Downloads -- total downloads of episodes combining results from iTunes, Microsoft Zune, Microsoft XBOX and Amazon Unbox
  • ISV (Internet Streaming Video) -- total internet viewing of episodes combining results from NBC.com, Hulu.com and NBC Direct
  • Television -- total airwave viewership from Nielsen Live + TSV
• The first TAMi release occurred on Wednesday, October 15, 2008, and covered 11 NBC shows.

Trivia

• In the first TAMi release, Heroes surpassed all other covered NBC shows in running totals for the categories of Mobile, VOD, and ISV.
• In the first release, separate viewership numbers were given for the categories of VOD, Mobile and Downloads.

See Also

• For television-only ratings, see Nielson Ratings.