Getting your player ready...
“PLANET EARTH,” 7, 8 and 9 p.m., DISCOVERY — Three hours of the gorgeous nature series from 2007. Tonight: “Mountains,” “Deep Ocean” and “Ice Worlds.”
ALSO
“The Amazing Race 14,” 7 p.m., KCNC-Channel 4 — A Russian marathon — no parkas allowed — -and the icy streets of Siberia are among the grueling challenges tonight.
Joanne Ostrow
