It's a simple format. Jimmy Savile, looking a little doddery these days, looks back at some classic fixing from yesteryear.
Remember the geeky little boy who wanted to stop the traffic and open Tower Bridge? No, nor did I, but we saw that he had grown into a strapping mid-30s bloke who looked faintly embarrassed at having to re-visit his past. What struck me is that the average six-year-old today probably couldn't care less about pushing a lever that opened a bridge.
Jimmy interspersed the nostalgia with some contemporary fixing, including a little boy who wanted to be an astronaut and was too shy to speak when he was given his badge. Funny.
The bad news is that Savile still has the same haircut, and is persisting with flamboyant clothes. If he was your grandpa, you would insist on him toning things down.
This can be painful viewing, but it's meant to be. It's a reminder of a more innocent age.
Media owner: UKTV Gold.