"MODERN MARVELS"

8 p.m. History Channel

The history and technology behind the ax as a weapon and tool.

"GET IT SOLD"

8:30 p.m. HGTV

Learn staging tricks to get a quick sale on your house.

"AMERICAN MASTERS"

9 p.m. KSTC/9

This edition focuses on Marvin Gaye, who combined gospel, rhythm and blues, soul and jazz - and challenged the face of popular music.

"LIFE IN COLD BLOOD"

9 p.m. Animal Planet

Snakes have used their simple but elegant body structure to succeed on ...