This site (which is going around facebook) has piqued my curiosity as to which videos are your go-tos for introducing people to Bernie or Progressive policies in general. Best to show like-minded people? Best ones to show conservatives?
Personally, I like to show the Papa Bear appearance (below the squig) to my conservative-but-possibly-open-minded relatives. O'Reilly makes it nice and accessible for them, at his blowhard best. Bernie not only holds his own, but also raises a number of points they can agree with.
As for the like-minded, its all gold.