I went looking for more and found this video on a year on a tulip farm.
This led me to another video about several different agricultural machines the separate food crops from their fields. I especially enjoyed the contraption that digs up daikon (radishes) in Japan. (Don't look for the quad-copter sprayer pictured here - it's not in the video.)
After all those big, busy machines, I craved something a bit more bucolic, and I found this bit of British nostalgia entitled "A Day in the Hayfields (1904)"
Then I found this vintage Footage of Horse-Drawn Combines in the Early 1900s (narrated in the 1930s, and in 1938 in the Palouse, and made for Washington State University.)