7pm NATURE - ECHO:
AN ELEPHANT TO REMEMBER
Watch Echo: An Elephant to Remember on PBS. See more from Nature.
A look back at this remarkable animal through
extraordinary footage and interviews with researchers.
8pm NOVA - JAPAN'S
KILLER QUAKE
Watch Japan's Killer Quake - Preview on PBS. See more from NOVA.
A look at the science behind the catastrophe includes
eyewitness videos and on-the-spot reporting.
9pm SECRETS OF
THE DEAD - JAPANESE SUPERSUB
Investigates Japan's creation of a submarine that could
blow up the Panama Canal and reach the U.S.
