About 90 million voted in the 2008 election and 217 million were registered. So, it seems a large percentage of undecided likely voters probably watched this first debate. More than 58 million people watched the first Presidential debate last night between President Obama and Mitt Romney, up substantially from the first debate in the 2008 election cycle, which had 52.4 million viewers. http://www.mediabistro.com/tvnewser...bate-as-more-people-tune-in-than-2008_b148739