1 The Building of the Earth55 min · 19 Jan 1984 2 The Frozen World55 min · 26 Jan 1984 3 The Northern Forests55 min · 2 Feb 1984 4 Jungle55 min · 16 Feb 1984 5 Seas of Grass55 min · 23 Feb 1984 6 Baking Deserts55 min · 23 Feb 1984 7 The Sky Above55 min · 8 Mar 1984 8 Sweet Fresh Water55 min · 15 Mar 1984 9 The Margins of the Land55 min · 22 Mar 1984 10 Worlds Apart55 min · 29 Mar 1984 11 The Open Ocean55 min · 5 Apr 1984 12 New Worlds55 min · 12 Apr 1984