Its leading female star, Megyn Kelly, also decamped for NBC in January. It also said the decision "follows an extensive review done in collaboration with outside counsel".
That certainly could happen, though it probably won't be easy.
That put pressure on 21st Century Fox and the Murdoch family, which controls the company. "He had the #1 cable news show for fifteen years... until today".
On Tuesday, protesters gathered outside the New York City offices of Fox to demand the cable network fire O'Reilly, whose career has been dogged by scandal.
Fox News is parting ways with Bill O'Reilly, who for years stood as one of cable news' most popular hosts. Shares in Twenty-First Century Fox were down less than 1 per cent at $30.50 in Wednesday afternoon trading.
As the accusations piled up, more than 50 major advertisers pulled out of his show even though viewership soared.More news: UK Labor Leader Comes Out Fighting ahead of Election
Following the Times story, 21st Century Fox said it had asked the same law firm that investigated Ailes to look into O'Reilly's behaviour.
Rounding out the Fox prime-time lineup, "Hannity" remains at 10 p.m. EDT. He thanked his viewers and noted the success Fox had achieved.
Bill O'Reilly is leaving the Fox News Channel, the network's parent company has announced. Otherwise, the network risked developing "a reputation as unfriendly to women, potentially turning off a lot of people", said Charles Taylor, a marketing professor at Villanova University.
News broke Wednesday about Fox News terminating its relationship with O'Reilly.
The channels that are trying to challenge Fox, like Newsmax, have much smaller profiles and are harder to find on the dial.
When the Murdochs went the other way, O'Reilly prepared a statement with the help of his agents and crisis communications adviser. It's now trying again, although a United Kingdom media regulator must certify that the combined company would be a "fit and proper" owner of the broadcaster.More news: AAP promises clean Delhi, corruption-free civic body
"We talked about things that adults talk about", Dr Walsh said.
In the midst of backlash over the allegations, O'Reilly left for a few weeks of vacation, which he said had been scheduled for months. O'Reilly has lost his job at Fox News Channel following report.
Lastly, and most importantly, we want to underscore our consistent commitment to fostering a work environment built on the values of trust and respect.
"It's like looking at your front yard and the big oak tree is just gone", Colbert said.
Bill O'Reilly has been terminated by the Fox News network amidst sexual harassment allegations. Ousting O'Reilly, he said, "does not speak to a changed culture".
"I don't think Bill did anything wrong", President Trump told the Times in an interview earlier this month.More news: Video reveals face recognition flaw in Galaxy S8
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