Obama was seen by the inauguration of 37.8 million Americans.

FotogalereiSorok chetvertyy20.01.2009Fotoreportazh with the inauguration ceremony ObamyKommentariiYa Barak, Barak Obama, prezident21.01.2009V USA was inaugurated 44 th chapter gosudarstvaTelevizionnuyu broadcast of the ceremony of inauguration of Barack Obama, seen by 37.8 million Americans reported edition of TV Week, referring to preliminary data of Nielsen Media Research. These results reflect the company the number of Americans smotrevshih broadcast on 17 major TV channels, including cable, from 10:00 to 17:00 Eastern Daylight Time.
Thus, by the number of viewers inauguration ceremony Obama second only to the inauguration of Ronald Reagan in 1981, it was seen by 41.8 million people. However, as noted by The Los Angeles Times, in assessing the number of visitors did not take into account those who watched the inauguration outside the home, as well as on the Internet.
According to CNN, referring to data the company Akamai Technologies Inc., On the Internet during the peak time of the ceremony while looking 7.7 million, which according to some sources, it became an absolute record for the Internet broadcast of all time, the existence of Internet video. Translation ceremony at CNN.com per day was seen by some 27 million people, more than five times higher than the previous record of 5.3 million recorded on the day of presidential elections on 4 November 2008.
As the AP, referring to the data The Washington Post, in Washington, where the ceremony was attended in person about 1,8 million Americans. According to the Office of the U.S. national parks, in any event in Washington before the inauguration of Obama was not going to so many people.
44 inauguration of U.S. President on 20 January in Washington.