"John Adams" -- who else is watching/watched? We just caught the first two episodes as HBO started rerunning it. (Spoilers, I guess, if you don't know how the Second Continental Congress turned out.)
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I'm surprisingly convinced by Paul Giamatti as Adams, though in his grumpier moments he fleetingly makes me think of Harvey Pekar in a wig. Laura Linney is, of course, superb.
I also like how it drives home how insanely risky the revolution really was. I think the it's generally taught in school or discussed around the 4th of July, there's this certain air of inevitability about the whole endeavor, a sort of lowest-common denominator abstract mythologizing that surrounds the whole endeavor (e.g., George Washington = cherry trees, liberty, and dollar bills). But of course, the outcome was far from certain, and they all could have been hanged for declaring independence.
I have a few quibbles -- Thomas Paine, for example, is weirdly invisible, and so far Ben Franklin speaks mainly in aphorisms that appear to have been cut-and-pasted directly from Poor Richard's Almanac -- but have still been enjoying it quite a bit.