NOVA
Ancient Builders of the Amazon
Discoveries reveal traces of ancient civilizations that flourished for centuries with prehistoric populations in the Amazon. (60 minutes)
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UPCOMING EPISODES
Wed, 1/7 at 8:00 pm on Austin PBS HDTV
Arctic Sinkholes
Investigating explosions in Siberia and other evidence that melting soil in the Arctic is releasing vast amounts of methane, a potent greenhouse gas. (60 minutes)
Thu, 1/8 at 3:00 am on Austin PBS HDTV
Arctic Sinkholes
Investigating explosions in Siberia and other evidence that melting soil in the Arctic is releasing vast amounts of methane, a potent greenhouse gas. (60 minutes)
Sun, 1/11 at 4:00 pm on Austin PBS HDTV
Arctic Sinkholes
Investigating explosions in Siberia and other evidence that melting soil in the Arctic is releasing vast amounts of methane, a potent greenhouse gas. (60 minutes)
Tue, 1/13 at 6:00 pm on Austin PBS WORLD
Arctic Sinkholes
Investigating explosions in Siberia and other evidence that melting soil in the Arctic is releasing vast amounts of methane, a potent greenhouse gas. (60 minutes)
Tue, 1/13 at 11:00 pm on Austin PBS WORLD
Arctic Sinkholes
Investigating explosions in Siberia and other evidence that melting soil in the Arctic is releasing vast amounts of methane, a potent greenhouse gas. (60 minutes)
Wed, 1/14 at 7:00 am on Austin PBS WORLD
Arctic Sinkholes
Investigating explosions in Siberia and other evidence that melting soil in the Arctic is releasing vast amounts of methane, a potent greenhouse gas. (60 minutes)
Wed, 1/14 at 8:00 pm on Austin PBS HDTV
What Are UFOs?
Astrophysicists and engineers look at evidence that supports the existence of UFOs. (60 minutes)