The previous best was the third game in 2012, which was watched by 2.62 million viewers.
The second most popular programme was Doctor Who, which was watched by 11.7 million viewers.
Only this season's premiere, which was watched by about 13.4 million viewers, attracted more viewers.
Cameron defended his decision to avoid the leaders' debate, which was watched by more than four million people.
ESPN2 had a 1.45 rating for Saturday night's game, which was watched by an average of 1,226,000 households.
"We have made my ancestor an idol," he said on the awards show, which was watched by millions.
Other highlights included Eastenders, which was seen by 5.7 million people and Strictly Come Dancing, which was watched by 6.5 million people.
People were forbidden to break even a branch from the trees within the enclosure, which was watched over by a special guardian whose position was hereditary.
Years ago, when we did The Human Body on BBC1, which was watched by 19 million people, the first shot was of people standing in a forest, naked.
It beat Channel 4's own film premiere, sci-fi movie Skyline, which was watched by 1 million viewers, a 4.9% share, between 9pm and 10.50pm.
Carruth's mother and Adams's stepmother left the courtroom sobbing during the testimony, which was watched on television by about 20 Panthers players at Ericsson Stadium.
