I caught this documentary on PBS originally some years back and was amazed at the stunning recount of America's ten years (or more) in Vietnam. Though I do not recall the names of the particular episodes I believe they covered the early years, Tet, air power and the fall of Saigon. It was much more so than that however. The amount of video shown from the Vietnamese perspective truly makes this a balanced and proper documentary along the lines of The Civil War, The World at War and Victory at Sea.
I'm not sure who publishes it, though I think Time-Life rings a bell and hopefully I'll be able to track it down on dvd! Anyone who has even a passing interest in Vietnam will find it fascinating.