RNC, Day 3: 37,244,000 viewers
DNC, Day 3: 24,029,000 viewers

Source: Nielsen:

• The Sara Palin speech generated 37.2 million viewers, just a 1.1 million viewers short of Barak Obama’s record-breaking speech on Day 4 of the Democratic Convention. The Palin speech was carried on only six networks while the Obama speech was carried on ten (including BET, TV One, Univision and Telemundo).

• Palin attracted a large female audience (19.5 million women, or 4.9 million more than Day 3 of the Democratic Convention).

• Ratings for viewers 55+ (25.2) continue to be about ten times higher than for teens (2.2)

• Day 3 for the GOP attracted more Hispanic viewers (1.4 million) than Day 3 of the Democratic Convention (1.2 million), even though Univision and Telemundo did not carry the speech.