Many things. Nature. Music. And, of course, Charger football (they'll get a ring someday...)
News, educational stuff (Discovery, History, TLC, etc), Family Guy, PBS (mostly for Austin City Limits & British comedy), classic sitcom reruns
Comedy, some action, horror (mostly classics, Freddie, Jason, fun low budget stuff, no sadistic crap like "Saw"), anything Godzilla, fantasy some sci fi, John Wayne, Mel Brooks
Stephen King, Dean Koontz, most of the "classics".