More numbers are in, it looks like more people watched Palin's speech (on fewer channels BTW) than BHO's
http://apnews.myway.com/article/20080904/D93079DG4.html
An audience of 37.2 million people watched Palin on ABC, CBS, NBC, CNN, Fox News Channel and MSNBC, Nielsen Media Research said Thursday. PBS estimated its audience at 3.9 million, based on a less reliable sample of several big cities. Nielsen does not count the audience for C-SPAN, which also showed the speech.
Last week, Nielsen said 38.4 million people watched Obama speak at a Denver stadium on the six commercial networks, along with BET, TV One, Univision and Telemundo - four networks that didn't cover Palin's speech. PBS added an estimated 4 million to that total.
Nearly 2 million more women were watching Palin than men, Nielsen said