NEW YORK (AP) -- The first night of the Republican National Convention drew an estimated 22.3 million television viewers, the vast majority over age 55.

The Nielsen Company said Wednesday that the audience, spread over nine TV networks, was down from the 23.1 million who watched the first full night of the 2008 convention that nominated John McCain to run for president against eventual winner Barack Obama.

Nielsen said that just under 15 million of the people who watched on Tuesday night were age 55 and over.

Fox News Channel, with 6.9 million viewers, beat all the other networks during the 10 to 11 p.m. ET hour when they all competed.