O'Reilly's show and his "No Spin Zone" approach to delivering news commentary and opinion have generated a devoted following and established him as a powerhouse media brand.
But his style and presentation also have created an army of critics, many of them on the left. He has a reputation as a hothead and has feuded with comedian-turned-Democratic Senate hopeful Al Franken and more recently with MSNBC's Keith Olbermann in what is perceived as a left-right fight.
Nolan, who competed against O'Reilly as an anchor of the tabloid show "Hard Copy" from 1990 to 1998 and later worked for "Extra!," said that he's not interested in being a champion of the left -- though he has appreciated what he called a flood of support for his O'Reilly protest.
"I'm interested in telling everyone in the country to stand up and say something is wrong when something is wrong," he said. "We've been through an awful dark time in our history where there are a lot of people telling you to sit down and shut up. From Dick Cheney to Bill O'Reilly, I'm done with bullies."
He's also looking for work.