Wednesday's first presidential debate drew more than 58 million viewers, topping the 52.4 million from the 2008 cycle, according to TV Newser.
Fox News was the most watched cable network, with 10.4 million viewers, and may end up being the most watched network that aired the debate.
Fox News: 10.4 million viewers
CNN: 6.0 million viewers
MSNBC: 4.7 million viewers