A scriptwriter for a very well-known comedian told me this week that one of his jokes was recently rejected for inclusion in an ITV programme not because it was not good enough, not because the producer did not like it, but because it was a joke about a celebrity (a rock star, as it happens) who is on an ITV list of people who are considered too litigious to make jokes about.
Whether this is true or not, I cannot guarantee. But the producer showed the list to the scriptwriter.
“I am not even supposed to tell you it exists, let alone show it to you,” the producer said.
No joke.
SO IT GOES - John Fleming's blog 
But what was the alleged joke allegedly about and was it funny?
Elton
Can we get the list and get every comic to do a joke about the wankers in their set ?