Free Planet Earth episode in HD
I was also impressed with the Deep Ocean episode but not the Mountains episode, which felt rushed. It is unclear how long this freebie will be around so watch it now.
You can also buy a digital copy of the 11-episode series in HD for $26. The Discovery Channel, which made the videos, sells a DVD set of Planet Earth for $40. Try using coupon code FS59 to get $5 off if you do buy it. The code expires May 3.