More DNC ratings numbers

According to the Nielsen Company, Hillary Clinton's Tuesday night speech drew a significantly larger audience than Michelle Obama's Monday night address: 26 million viewers across the broadcast and cable networks (excluding PBS) for Clinton, compared to 22.3 million for Obama. In 2004, only 5.9 million viewers watched the second night of the convention, because ABC, NBC, and CBS didn't bother to air primetime coverage at all.

Another tidbit: African-Americans are watching this week's convention in higher proportions than other viewers. About 12.7 percent of African-Americans are tuning in across the broadcast and cable networks, compared to 9 percent of the population as a whole.

As for cable news channel ratings, here's the rundown for Tuesday night:

For primetime coverage, CNN drew 3.4 million viewers, Fox News Channel drew 3.3 million viewers, and MSNBC drew about 2 million viewers All three networks drew between 42 and 44 percent more viewers than they did during the same convention night in 2004.

And who's watching whom? Here's one way to guess: A study published in August by the Pew Research Center for the People & the Press shows this breakdown of viewership and party affiliation:

Regular CNN viewers: 51 percent Democrat, 18 percent Republican
Regular FNC viewers: 33 percent Democrat, 39 percent Republican
Regular MSNBC viewers: 45 percent Democrat, 18 percent Republican.