You can show video of Hitler but not Saville?

[gr1340]

So the BBC had to apologise for showing Jimmy Saville on iplayer. Yes, what he did was bad but do people really expect him to be wiped from visual records for all of time?
http://www.bbc.co.uk/news/entertainment-arts-29308...

So why are you allowed to show footage of Hitler, effectively responsible for millions of deaths? Surely that is much worse?