I can't believe I forgot to add this to my previous post, but just recently, David Attenborough celebrated his 100 birthday! Cheers to his lifetime contribution towards learning and conservation! Here's a quick link, though you can easily search videos about him:
https://www.youtube.com/watch?v=-o-9h_hGpn8
Apparently, he's still keeping active and making nature documentaries. In particular, I am currently watching this one called "Life that Glows":