BBC AMERICA announced today that Downton Abbey’s Dan Stevens will narrate the new two-hour Planet Earth special, The Making of Planet Earth, premiering Sunday, April 22. The original Planet Earth series, which has captivated audiences around the world in over 130 countries, now makes its first ever US broadcast premiere on BBC AMERICA as part of a very special two-day celebration of Earth Day. The momentous event marks the first time that the landmark series will broadcast in the US in its entirety with its original narrator, world famous naturalist Sir David Attenborough. The Planet Earth marathon begins Saturday, April 21, 6:00am ET to Sunday, April 22, 9:00pm ET/PT. Following the marathon is the world premiere of The Making of Planet Earth, Sunday, April 22, 9:00pm ET/PT. Read More …