Here is what Sanders has Gibson saying on the doctored tape: "I'm talking about Eric Holder and his bright blue scrotum."
Huffington has since run a retraction and an apology, but Gibson is still angry.
"This was done for the purpose of getting me fired," the Fox anchorman said on his radio show Monday. "This was done for the purpose of getting me banned from the air forever. ... If I was talking about the first African-American attorney general of the country ... and I made him into some kind of animal with a very distinctive physical feature ... I would absolutely be fired."
Gibson said Sanders, who also appeared occasionally on Maryland Public Television in recent months as a technology expert, used his computer at WBAL to make the fake video. A WBAL source, who spoke on condition of anonymity, also said that station equipment had been used to make the video.
Sanders said he put an "annotation" at the end of the phony video, explaining that Gibson did not actually use the phrase, "the minute it was up" on YouTube.
But no such disclaimer appeared on the video on the Huffington Post - the one that went viral last week
In the haphazard world of catch-as-catch-can Internet standards, the authenticity of the tape came into question only when a media analyst who specializes in searching out evidence of bias involving Fox News - Johnny Dollar of the Web site Johnny Dollar's Place - called it into question.
Sanders, who could not be reached for comment yesterday, said in the B-Cast interview that he just made the video as a prank.
But the episode has taken on a political tone, with Gibson alleging that he was targeted because he works for Fox and has voiced conservative views.
Sanders "says he thought it was fun," Gibson said. "But I don't believe him. I believe he was going after me."
