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's $5 under our mention from a year ago and the best price we've seen. (It's a low now by $29.) This 6-disc set includes all 11 of the 50-minute episodes from the series and 110 minutes of behind the scenes footage.