Well, overall … an excellent documentary. A fresh look at at topic we've all seen multiple times over, with an innovative script, which I found took a very Earth-centric view of the Sun's properties. Interesting.
This is a photographer's documentary with awesome, high definition timelapse sequences of the night sky and the Aurora Borealis. At times, Cox (supposedly) even gets out his camera and telescope, to demonstrate the salient points.
Its interesting how even Cox's simple experiments (eg: the rise in temperature of a can of water in Death Valley), give an 'earthy' feel to physical phenomenon, perhaps appealing to the UK audience's carefully conditioned sensitivity to topical environmental issues.
I think they lost the concept of scale in the opening sequences, by attempting to describe the size of the Solar System in kms ! For me, it wasn't until much later, when they introduced the concept of Astronomical Units, that I could relate to any of this preamble commentary.
The eclipse sequence was probably the best I've ever seen. I think they must've had extremely fortunate weather conditions to capture these extraordinary shots. The ESO Atacama Desert sequences made me want to be there. Fantastic.
Overall .. a great documentary propped up by top-notch photography … and that's in spite of my perception of Cox not having changed his attire, or combed his hair, once throughout the whole episode ..
… (I'll have to go back and have another look to confirm that .. and those fake teeth really do get in the way at times).
Cheers