Amazon.co.uk offers Planet Earth: The Complete BBC Series on Blu-ray Disc for $16.42 (£10). At final checkout it drops to $13.68 (£8.33). With $5.07 (£3.08) for shipping, that's the lowest total price we could find by $26, although we saw it for $3 less three weeks ago. This 5-disc set includes all 11 of the 50-minute episodes from the series. It's narrated by Sir David Attenborough.