Beating Obama's DNC speech by a over a half a million viewers.
McCain's tally was believed to be the biggest commercial TV audience every for a single night of a U.S. political convention, Nielsen said.
The Republican convention in St. Paul also attracted more average viewers overall than the Democratic Party convention in Denver last week.
And McCain did on 2 fewer networks than Obama - 8 networks aired his RNC compared to 10 which aired Obama's DNC speech.
Correction: made to 6 & 8 ----> 8 to 10.