Best Buy offers Planet Earth: 6-Disc Special Edition on Blu-ray Disc for $14.99. Choose in-store pickup to avoid the $3.99 shipping fee. That ties our April mention as the best price we've seen. (It's also a current low by $15.) This 6-disc set includes all 11 of the 50-minute episodes from the series, along with 110 minutes of behind the scenes footage.