Former CBS news anchor Walter Cronkite KB2GSD narrates a Marconi documentary on YouTube.

The YouTube description says: "In 1914 Guglielmo Marconi built a wireless station in Chatham Cape Cod that would go on to become the busiest ship to shore station in the Northern Hemisphere.

"With this he took the initial flash of genius with the first transatlantic transmission and created the business of wireless communication that is at the heart of today's radio, cell phones, and satellite transmissions."