IDAHO (MT)

10:00 pm 

Inventions That Shook The World  "The 1930's"  Though overshadowed by the Great Depression, there is no shortage of ingenuity in the 1930s. The 2-way radio gets miniaturized and the world's first portable walkie-talkie goes on the air. The electric guitar changes popular music forever and commuters become a cash cow for cities when the parking meter is introduced. Part 4 of 10G