Anyone watching this? I've seen the first three and found them fascinating. I'm looking forward to seeing the next on catch up.

The leaders one seemed a very tight, imo, three way split between Mandela, Churchill and Roosevelt. I think Mandela shaded it for me on his willingness to die for his beliefs. Thought Thatcher was well off the pace; a poor makeweight.

For explorers, I was amazed by the courage, tenacity and camaraderie shown by Shackleton (perhaps he could have been in the leaders section). To be the first man on the moon though, isn't that the ultimate achievement for a 20th century explorer? My vote would therefore go to Armstrong. Bell and Goodall were both interesting and inspirational people, but I'm sorry I can't see in any way how you can be considered the most iconic explorer when you are travelling to places that are already inhabited.

I thought that Einstein would be a shoe in for iconic scientist. After all he's the one who's name checked whenever someone comes out with something clever: "ooh, hark at Einstein over their". I did think though that both the Marie Curie and Alan Turing stories were absolutely amazing. Tu Youyou, I struggled with. Partly for my childish wish that she should become the new replacement for Barry Chuckle and partly because I never got to grips with the actual science part of the story, it came across more as a story of struggle to survive under a totalitarian regime.

Whatever the results though, it' great viewing and a fascinating insight into the lives and achievements of some truly great people.