In a statement, PBS said they've received "multiple, credible allegations of conduct" that were inconsistent with its values. "Following receipt of a complaint, PBS hired an independent law firm to conduct an investigation and we stand by its integrity".
He has written numerous non-fiction books including titles such as Doing What's Right: How to Fight for What You Believe and Make a Difference (2000), Keeping the Faith: Stories of Love, Courage, Healing and Hope from Black America (2002), What I Know for Sure: My Story of Growing Up in America (2006) and Fail Up: 20 Lessons on Building Success from Failure (2011).
Smiley says he was never informed about the investigation into his behavior and only learned about from people who were contacted by PBS' investigators.
Smiley in his Facebook post claims PBS "refused to provide me the names of any accusers, refused to speak to my current staff, and refused to provide me any semblance of due process to defend myself against allegations from unknown sources".
The former season 19 "Dancing with the Stars" competitor denied the allegations brought against him following PBS's decision.
Palestinians martyred in Gaza explosion
The rockets launched by Hamas over Israel had intercepted by the Iron Dome missile shield, with no casualties being reported. Local media identified the two people killed as members of the al-Quds Brigades, the military wing of the Islamic Jihad.
"If having a consensual relationship with a colleague years ago is the stuff that leads to this kind of public humiliation and personal destruction, heaven help us", Smiley said. "This investigation included interviews with witnesses as well as with Mr. Smiley".
PBS wasn't immediately available for comment outside of regular office hours early Thursday.
PBS responded to Smiley's accusations by saying it stands by the integrity of the investigation.
TS Media could not be immediately reached Wednesday.
"Tavis Smiley" is a 30-minute news show that airs weeknights and is filmed in Los Angeles. In 2002, he became the first black man to host a show on NPR.
Another popular personality of PBS who is facing sexual misconduct accusations has been fired just a few week after Charlie Rose was sacked for the very same reason. It features interviews with politicians, celebrities, athletes, and other high-profile guests.