Obama’s speech watched by 38 million viewers.

Sen. Barack Obama’s (D-IL) acceptance speech last night reached a quarter of America’s households, according to Nielsen Media Research. In all, with over 38 million viewers, “more people watched Obama speak than watched the Olympics opening ceremony in Beijing, the final ‘American Idol’ or the Academy Awards this year.” The AP notes that “Obama’s audience might be higher,” since Nielsen didn’t estimate how many people watched on PBS or C-SPAN.