Favorite documentaries?
I have a couple:
PBS's "Vietnam: A Television History." The 1983 version. Anything narrated by Will Lyman has a leg up from the outset. 
"The Civil War" by Ken Burns.
These are obviously a couple of very well known productions; what have you watched that impressed you?
= new reply since forum marked as read
My impression is that it was really good on the Continental Congress and Army and so so on Colonial life...
I didn't see very much bias in it, but that was about 4-5 years ago.
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I'm going to 
before I say this, but I think Kissinger gets a bad rap to some extent (except for Chile), when really it was Nixon driving the mistakes of Vietnam. I've never read anything that lead me to believe that Kissinger was anything less than forthright about trying to cut a deal with the North Vietnamese without selling out the South entirely.
http://en.wikipedia.org/wiki/Henry_kissinger#Vietnam_War
There have been claims that Nixon sought to sabotage negotiations, most famously made by Seymour Hirsch, her recordings of Nixon and LBJ's conversations on this matter: http://hnn.us/articles/60446.html
Supposedly, it was Lt. Gen. Claire Lee Chennault's wife who was Nixon's go between in South Vietnam, and I'm not sure how much Kissinger knew, or if this was even really the case. We'll never really know. Kissinger is never mentioned by Johnson; if my memory is correct he was at Harvard right up until his appointment and not part of Nixon's operations at that point.
http://en.wikipedia.org/wiki/Paris_Peace_Accords - Really it took so long because of the ridiculousness of the North in wanting to stall because they knew they were going to win and wanted as favorable terms as possible - I have never read anything to suggest that Kissinger acted in any manner less than a professional representative of the United States.
Perhaps it was foolish to think that we could facilitate a "political reality" in Vietnam, but I think it's always important to continue to think of Vietnam in the full Cold War context. It's not like after the Cuban Missile Crisis we suddenly became amigos with the Soviet Union and ultimately it did destabilize Cambodia and Laos with great suffering. I think the mistake was in the initial diplomacy and the slow creep towards war instead of confronting the situation head on with a unified international front like we did in Korea. Of course today, North Korea looks like hell compared to Vietnam, but I think a fair amount of that is by not considering the fate of the entire Indochina group of nations and peoples.
What happened in Cambodia especially was atrocious and only ended when the Vietnamese invaded Cambodia in in 1978: http://en.wikipedia.org/wiki/Vietnamese-Cambodian_War - another element that people forget is Vietnam's natural antipathy to China that resulted in the http://en.wikipedia.org/wiki/Sino-Vietnamese_War of 1978. I think it would be mistaken to believe that our entire endeavor in South Vietnam was misplaced; rather it was poorly conducted both diplomatically and on the ground - the http://en.wikipedia.org/wiki/Boat_people - make clear that many in South Vietnam did not want to live under a Communist North and that the international community had a humanitarian interest and the strategic interest of the United States required us to take some step to check Soviet backed expansion.
I'm just the diplomatic history messenger, don't shoot, for Heaven's sake, don't shoot.
On the History Channel back in 2000 or so, before it completed the turn to the 'Guys Doing Jobs/Nostradamus' Network 
My favorite line I still remember:
'It's not correct to say that George Washington married Martha for her money. He married here for her land and slaves as well.'
It's nothing but Giant Spiders, Nostradamus, guys doing regular jobs, and aliens.
It has quite literally become the Weekly World News. Very sad. 
Even when people referred to it as 'The Hitler Channel' it had actual historical programming. Unfortunately even those days are long gone.
