Interested in the latest TV on DVD reviews? DVD Talk has you covered! This week's notable entries include: The BBC High Definition Natural History Collection (featuring Planet Earth) - this collection is full of wonders and a great investment; The Killing: Season One - this show does an able job in balancing the usual cop drama with a look at the specter of death hovering over so many lives; and NOVA: The Fabric of the Cosmos - a well-produced look at the advancing world of physics and its connection to the "space" beyond our skies. Other shows recently reviewed include:  Doctor Who: The Face of Evil, Superjail: Season Two, and Fan Favorites: The Best of MacGyver.  Want more?  Check out all of the TV on DVD reviews in the DVDTalk database.