I have just finished watching the first episode on BBC 1 and I am amazed to find that Planet Earth II appears to have bettered the original! The photography is perfect and Attenborough's narration, both content and delivery, is unparalleled.
This initial outing is titled "Islands" and whilst I don't want to dwell on the individual segments, the Racer Snakes vs baby Iguanas is probably the most terrifying piece of natural history film I have ever witnessed, not for the fainthearted or squeamish!
The "making of segment at the end of the documentary proper was particularly enjoyable and informative.
This is what the BBC does best and long may it last.