What are some good Documentaries on Blu-ray?

I have the BBC/Discovery Channel's "Planet Earth the Complete Series, 4 disc." I like it bunches (but wish it was 1080P, as opposed to 1080i, yes there is a difference.)

What's another good ones? I'm looking for some good HD documentaries with good info and eye candy is fun. Do I already have The Blue Planet Seas of Life? (there are several ocean/water episodes - or would BPSOL be new stuff.)

PS Wish we could get the 'Walking with Dinosaurs' people to make a new HD one.

Thanks in advance for your answers.