I've seen and heard it many places. Are you going to tell me you have never heard this?
"Despite the best wishes of sincere believers and the erroneous claims of truculent apologists, the Testimonium Flavianum has been demonstrated continually over the centuries to be a forgery, likely interpolated by Catholic Church historian Eusebius in the fourth century. So thorough and universal has been this debunking that very few scholars of repute continued to cite the p***age after the turn of the 19th century. "
http://www.i4m.com/think/bible/jesus_evidence.htm
"For hundreds of years, Catholic historians have used these paragraphs in Josephus' writings as "proof' that Jesus existed. That is, until scholars began to examine the text a little more critically. No serious scholar now believes that any of these p***ages mentioning Jesus were actually written by Josephus. They have been clearly identified as much later additions. They are not the same writing style as Josephus and if they are removed from the text, Josephus' original arguments run in their proper sequence."