Amazon offers its Prime members Frozen Planet: The Complete Series on Blu-ray
with free shipping
. (Non-members can spend $25 or more to qualify for free shipping; otherwise, shipping costs $2.98.) That's tied with our mention from two weeks ago (which required in-store pickup) and the lowest total price we could find now by $4. (Most merchants charge $40 or more.) It features the entire 2011 series, narrated by David Attenborough, on three discs.
Note that Best Buy offers it for the same price, however sales tax is charged in more locations.
Amazon Prime membership is $79 per year; however, Prime is free for college students for six months, and free for parents and caregivers for three months.