Putting this out there and hoping some RSer's have watched this amazing documentary. It's not for the faint of heart - over 18 hours spread over 10 episodes, but if you have a chance you should definitely catch at least some of it on PBS (KCTS in Vancouver/Seattle) or Online:
Watch | The Vietnam War
edit: eh, it's geo-blocked, but I'm sure you can find it elsewhere or workaround it
Tons of footage and new info I never heard of even as a history buff , plus the soundtrack is amazing for those that are into 60/70s rock.