that joke was on sikipedia last week,
http://www.joe.ie/entertainment/television/listen-radio-ulster-pranked-with-jimmy-savile-joke-0029786-1
Haha - I'd heard the joke but much funnier when someone reads it out on the radio.
Looks like they are going to arrest some well known names in connection with this now - can't help but think in reality maybe there were some people with more influential positions in this country than just showbiz names - he seems to have led a charmed life, or perhaps he had friends who could pull strings for him.