Writing in The Independent, the actor recalled: "Having recorded and edited the Nick Griffin documentary, I discovered to my chagrin that the problems were only half over.
"Channel 4, which had been enthusiastic about the idea of me interviewing Griffin, was discomfited by the reality and repeatedly asked for changes and additional lines of didactic narration.
"When one commissioning editor completely misunderstood a sequence about Muslim women in which Griffin was unexpectedly defending them as victims of male violence, she gave such a knee-jerk reaction that I assumed she must have trained with Galvani.
"Eventually, after much patient explanation, Channel 4 said it was pleased with the documentary, but it then sat on a shelf as summer turned to autumn and then to winter.
"Hence Victor's outburst of a month ago, as a result of which the programme will finally grace - or disgrace - your screen tonight."
Keith Meets... Nick Griffin airs tonight (Monday) at 11.05pm on Channel 4.