As the weeks moved on, it was only a matter of time before Fox News made a move in regards to the sexual harassment scandal involving Bill O'Reilly. After the network announced that the host would not be returning, one of his biggest critics decided to rejoice.

Olbermann on O'Reilly

Rewind back to the start of April and that's where the trouble began for Bill O'Reilly. Actually, according to the New York Times report from the beginning of the month, O'Reilly had been accused of sexual harassment dating back almost 15 years prior. The report in the New York Times revealed that the Fox News host had privately reached a settlement worth close to $13 million with five different women who accused him of various acts of sexual harassment during their time at the network.

After over 50 sponsors pulled their ads from "The O'Reilly Factor," and the Murdoch family's deal to purchase Sky TV in the Europe was on the verge of collapse, Fox News decided to pull the plug on the popular host. In response, O'Reilly's legal team blamed the downfall on a conspiracy of "far-left" groups targeting the former host over his conservative politics beliefs. While the reaction to the firing quickly turned viral on social media, former EPSN an MSNBC host Keith Olbermann was quick to lash out, as his feud with O'Reilly has been well-documented over the years. During a series of tweets and an interview with Yahoo News on April 20, Olbermann didn't hold back his thoughts.

Taking to his Twitter account this week, Keith Olbermann made his feelings known about the current situation surrounding Bill O'Reilly.

"Oh, please grow the fuck up, @oreillyfactor. We've all known who and what you are for 20 years," Olbermann tweeted, before adding, "Have some self-respect and RESIGN." Olbermann then mocked O'Reilly for meeting with Pope Francis in Italy during his current vacation, tweeting, "He's asking for religious asylum inside the Vatican."

O'Reilly advice

After the news was made public of Bill O'Reilly's departure from Fox News, Keith Olbermann posted the official statement released by the network on the matter, while adding "Mission Accomplished" to his tweet.

During an interview with Katie Couric for Yahoo News on Wednesday, Olbermann advised the former host to "fess up" over his wrongdoing, while also predicting that O'Reilly would find work somewhere due to his popularity among conservatives and his ability to bring in strong ratings.

With the 8 p.m.

time-slot now open, Fox News has tapped Tucker Carlson to fill the role, while moving "The Five" to the 9 p.m. hour. Further details have not been released as of press time, and Bill O'Reilly has not made any additional comments.