Megyn Kelly's return last week to Fox News as a guest on "Tucker CarlsonTucker CarlsonThe Hill's 12:30 Report: Hunter Biden speaks out amid Ukraine controversy Tucker Carlson set to interview Megyn Kelly Hillicon Valley: Warren takes on Facebook over political ads | Zuckerberg defends meetings with conservatives | Civil liberties groups sound alarm over online extremism bill MORE Tonight" delivered more than 4 million viewers, helping the program bethe most-watched on cable, according to Nielsen Media Research.
The Kelly interview, which included pointed commentaryabout her former employer, NBC News, marked her first TV appearance in almost one year and her first appearance on Fox News in nearly three years.
Kelly made a highly visible jump from Fox News to NBC News in 2017, signing a three-year contract with the Comcast-owned network and gaining her own morning show.
The onetime attorney parted ways with NBC nearly one year ago after controversy over her comments during a Halloween costume panel stating that wearing blackface was "OK" when she was growing up "as long as you dressed up as a character."
She quickly apologized for the comments, but her show was still canceled.
Kelly also drewire of NBC executives when she showed a willingness to book sexual misconduct accusers of former "Today" host Matt LauerMatthew (Matt) Todd LauerFarrow: Clinton staff raised concerns over Weinstein reporting Advocacy group urges DNC to cancel debate hosted by MSNBC, cites 'toxic culture' at network Megyn Kelly lauds 'forces of good' Meredith Vieira, Ann Curry in Matt Lauer scandal MORE, with some media experts suggesting it helped lead to her exit from the network.
During the Fox News appearance, Kelly called on NBC News to bring in an outside firm to investigate sexual misconduct allegations against Lauer.
"There needs to be an outside investigation into this company, Kelly told Carlson on Wednesday night. "They investigated themselves. That doesnt work. This is how it's done. You get somebody on the outside who can be trusted," she added.
Linda Vester, also a former NBC News host, also said in an interview with Fox News's Shannon BreamShannon BreamBaier, Bream, Hemmer, Hume, Wallace among interim anchors to fill Shep Smith's 3 PM slot Neil Gorsuch to appear in first TV interview with Fox's Shannon Bream Was Mueller a fumbling fool or stoic hero? Depends on who you watched MORE that she thought an external investigation needed to be opened.
Fox News allowed an outside firm to investigate sexual harassment allegations against then-chairman and CEO Roger Ailes in 2016, which led to his exit just three weeks after the investigation was launched in July ofthat year.
NBC confirmed through a spokesperson to The Hollywood Reporter on Thursday that it will not open a new investigation.
"There is no additional investigation being launched. We are very confident in the report that was conducted," spokeswoman Hilary Smith told THR.
"We fired Matt Lauer within 24 hours of learning what he did, and promptly launched a corporate investigation," she added. "Based on our investigative findings, we have swiftly taken appropriate actions to address the situation and improve workplace culture. It is also worth noting that this was a corporate investigation that was conducted by an almost entirely female team, none of whom are part of the News division."
Overall, Carlson drew 4.06 million total viewers to win the cable news race with Kelly's appearance, followed by Sean HannitySean Patrick HannityHannity knocks 'dumb' Mulvaney after White House press conference Donald Trump Jr. hits back at critics over hypocrisy claims Trump's tirades, taunts and threats are damaging our democracy MORE with 3.65 million viewers. MSNBC's Rachel MaddowRachel Anne MaddowKrystal Ball dismisses Ukraine scandal as 'manufactured drama' Rachel Maddow signs onto 'Batwoman' TV series Whistleblowers and the hypocrisy of the ruling class MORE was third with 3.44 million.
In the 25-54 demographic that advertisers covet most, Carlson registered 689,000 viewers, followed by Hannity's 632,000 and Maddow's 574,000 in the category.