I'm currently watching Wild Brazil, and Wild Nile, and I always watch David Attenborough docos. We have Galapagos on DVD and I often put it on just so there's something good visual on the TV while I do stuff about the house.
Yes, we have watched all his shows. He's a marvellous presenter, & there's never been 1 I've found boring. Wild animals have to kill each other, unfortunately, to survive. David's getting on in life, but I reckon he'll keep making these wild life shows, until he dies!