I compiled a list of all the videos I could find on YouTube that feature US Route 20. I found several, some professionally done, some very amateur (with lots of shaky cam). The videos from Mohawk Valley (NY) Living are very well done and they really make me want to check out that area. Enjoy!
Mohawk Valley Living #170 Route 20 (part 1 of 2)
Mohawk Valley Living #170 Route 20 (part 2 of 2)
Mohawk Valley Living #118 Road Trip along Route 20
Mohawk Valley Living #120 Route 20, Cherry Valley (1 of 2)
US 20 - Schoharie County, NY
US Route 20 - Charlton, Massachusetts
US Route 20 West to Westfield, MA
US 20 Dubuque – Over the Mississippi
The US Route 20 Blog homepage can be found at usroutetwenty.blogspot.com, here.