Robert McNamara, That one super-cool guy at the store, Stephen Hawking, Zach Galifianakis, Fred Phelps (so I can head-butt him to death)
Most things metal (Lamb of God, Demon Hunter, In Flames, God Forbid, Carcass, Mastodon) Johnny Cash, The Eels, select bluegrass groups, good stuff like that.
Most things comedy. Zach Galifianakis is a genius. some horror, mostly zombie movies and thrillers that play off fear of the dark -- The Ring, Signs, stuff like that. Almost anything with Steve Buscemi, Tim Roth and Philip Seymour Hoffman.
Late-night Comedy Central and Cartoon Network. Replays of The Colbert Report and Futurama. Most anything on the History Channel. Good Times, Sanford & Son.
Generation Kill, Stephen King's Dark Tower series, anything by Hunter S. Thompson, Albert Camus, Al Franken, Richard Rhodes, Christopher Moore, Steven Hawking and Maddox