DAVID AXELROD documentary television
SOME SHOWS FOR PBS
SOME SHOWS FOR PBS
LOST AT SEA, THE SEARCH FOR LONGITUDE
http://www.pbs.org/wgbh/nova/longitude
/https://www.dailymotion.com/video/x2z5wg8
Many of these programs are available at ShopPBS.org and at Amazon.com.
Some Nova programs are also available at Hulu.com