There aren't many unplanned moments on television these days, but when it happens, it immediately becomes must-see TV.

Case in point: Gawker reports that an infamous white supremacist was literally stunned into silence upon learning he was in fact part African during an appearance on a daytime talk show.

The remarkable incident occurred during a recent taping of Trisha, a syndicated daytime talk show hosted by TV veteran Trisha Goddard.

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As part of the show's theme exploring "race in America," Trisha producers booked Craig Cobb, an anti-Semitic white supremacist activist who proudly proclaims that, "racism is my religion."

In news-making terms, Cobb is likely best known for trying to transform his current residence of Leith, N.D., into a racist haven for other white supremacists. The local city council voted in several ordinances that crushed his plan before it began.

Closer to home, back in 2010, Cobb launched an unsuccessful attempt to register a non-profit society called Whitepeace in Vancouver.

On this occasion, however, the 62-year-old Cobb had voluntarily submitted to a DNA test before the Trisha taping. When Goddard – who is black – reveals the results, her studio audience seems to know what's coming, even if Cobb remains oblivious.

"Eighty-six per cent European," said Goddard, as the audience noise slowly mounts. And then: "14 per cent sub-Saharan African."

While Goddard and another unidentified guest join in with the audience laughter, Cobb tries to interject by claiming his genetic makeup is "statistical noise."

Adding insult to injury, Goddard tells Cobb: "You have a little black in you." She then tries to fist-bump her new "bro," who does not return the gesture.

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Interviewed later by the MailOnline, Cobb said he only agreed to the test "because I assumed it was science." After hearing the results, Cobb described the test as a "scientifically bankrupt procedure," intended only to "shock."

No word on whether Cobb plans on making a return visit to Trisha.