Continue celebrating Earth Day with the series Planet Earth now available from the iTunes store.  Climb mountains, trek through jungles,  get up close with animals and more in this wonderful series.  Each episode is $2.99 with the whole series available for $19.90, $29.90 for HD.  Just open the iTunes store and search in TV seasons for Planet Earth.

To see other Discovery Channel offerings, choose Networks & Studios under the TV Shows Quick Links section for items such as When We Left Earth…., Mythbusters, Deadliest Catch and more.