Real drunk people recount historical events in their own words. Those drunken words are then played during historical reenactments by such actors as Michael Cera, Jack Black, and Danny McBride. Here's the first episode, "Drunk History, Volume 1: Aaron Burr Versus Alexander Hamilton" (featuring Michael Cera):
The rest of them are here. My favorite is Volume 2.5, which sent me into fits of hysterical laughter.
[Thanks to Gabriel Fleming for alerting me to these.]