I watched One Life recently and it made me think about how easily heroism can be overlooked.
Winton's achievement would probably be much less known without the That's Life! episode, and sadly his key helpers, who organised in Nazi-occupied Czechoslovakia itself and dealt directly with the Gestapo are still not much recognised now, though that is changing. Winton himself always gave the others, especially Chadwick, recognition for working under Nazi rule- I think part of the issue was that all 3 died in the 1970s, so by the time people wanted to commemorate, Winton was the only one left.