Last month, “The O’Reilly Factor” was typically home to at least 30 nationally broadcast commercials a night. By April 11, the final time Bill O’Reilly hosted the 8 p.m. show on Fox News, that number had dwindled to 10.

The advertising exodus, which followed a report by The New York Times disclosing that five women had received settlements over accusations of inappropriate behavior by Mr. O’Reilly, rattled the network.

While the financial fallout may not have been dire, given that many advertisers shifted their spending to other programs on the network, it was difficult to ignore the image of at least 50 major brands — like Mercedes-Benz and Allstate — declining to associate with Fox News’s most popular personality. Now that Mr. O’Reilly is gone, dismissed on Wednesday by 21st Century Fox, the network’s parent company, the question is: Will the advertising situation on Fox News return to normal?

Mr. O’Reilly, who has denied the allegations against him, will be succeeded in the 8 p.m. Eastern slot by Tucker Carlson, who had been the host at 9 p.m. The round-table show “The Five” will move to 9 p.m. and Sean Hannity will stay as the 10 p.m. host.