In 1990, a single episode of a public access show called "Klansas City Kable" aired in Kansas City, Missouri. The klansman who fought city council for his right to produce it was never prosecuted for the bombing campaign he claims to have carried out in the decade prior, but his long career as a professional racist took him all over the world before a years-long undercover operation finally put him away.
Sources:
Kennard, Matt. Irregular Army: How the US Military Recruited Neo-Nazis, Gang Members, and Criminals to Fight the War on Terror. London: Verso. 2012
Newton, Michael. White Robes and Burning Crosses: A History of the Ku Klux Klan from 1866. McFarland and Company 2014
https://www.nytimes.com/1991/11/03/world/klan-seizes-on-germany-s-wave-of-racist-violence.html
Ketter, Pia. "Zwischen Mord und Kreuzverbrennung. Der Rechte Rand, March/April 2016.
Rink, Nina. "Anleitung zum »Rassenhass«" Der Rechte Rand, March/April 2016
Norton, Bill. "The Cop and the Klan." Star Magazine, October 9, 1988