MichaelR said..
I watched this, and found it fascinating as usual. He's pretty fit for a bloke who's turning 90 this May. When they filmed this he was 88. It as also good to see the footage from when he visited 50 years ago, and to see how technology has changed.
We ended up watching three Attenboroughs last night. Frozen Planet and The Reef, then Tree of Life. I feel well educated today :-)
Yes Attenboroughs has really good material to watch love his Doco's