The police investigation has already moved pretty quickly.
On Thursday, police were talking about getting together an arrest strategy together and today we saw our first arrest. And there will be more. Some will be high profile and others not so high profile.
We spoke to one woman last week who has passed the name of a former BBC employee onto police. She wants an arrest.
The police have put the allegations into separate categories: Those against Savile, those against others and those against Savile with others.
They say that today's arrest of Gary Glitter is in the latter category. Mr Glitter is not on bail until December.