My hero and what a life. 
Slowly collecting all the BBC Blu Ray 4k discs. I always learn so much.
The whole family is remarkable. His brother Richard made his mark on the world .
[Moderating]
I don’t think this is a factual question. Since it’s about an entertainer of sorts, let’s move it to Cafe Society.
The third brother ran a dealership selling Rolls Royce cars. In any other family he would have been considered a great success.
Don’t you just hate these elite families 
Depends on what you take “elite” to mean. The Attenborough family–at least Richard and David–seem to have made a lot of contributions to our culture and knowledge. That’s a pretty positive kind of “elite.”
Elite is no negative in my mind.
He is fun to watch and listen to! My nephews and I have watched many of his shows!
Here’s a superb snapshot of him in action:
David Attenborough Plays with Cute Baby Gorillas | BBC Earth
Their father was an academic, and by the sound of it not from a particularly privileged background
Someone needs to make a documentary about Attenborough’s life, using the exact same tone of voice to describe him and his behavior the way he describes primates.
Browsing through his biography on Wikipedia, I was interested to see that in his role as controller of BBC Two in the late 1960s, he commissioned both Kenneth Clark’s Civilisation, and Jacob Bronowski’s The Ascent of Man. Thus Attenborough is largely responsible for creating those sort of long-form multipart documentary series built around a single on-screen presenter.
Thus he brought us not only his own many series, but was indirectly responsible for giving the world things like Sagan’s Cosmos, James Burke’s Connections, and Simon Schama’s History of Britain.
Yes, if they were Methodist, they weren’t U.
(Good for them, refusing to be limited by the class system!)