‘Adventure Time,’ TV’s Surreal Masterpiece, Comes to an End

“Adventure Time” doesn’t come up often in discussions about the 21st-century TV canon. (I’m as guilty of this as any critic; it is easily my favorite show that I’ve never written about.) Maybe this is because it airs on Cartoon Network; maybe because it commits the sin of being fun and kaleidoscopic rather than grim and dark. But this animated epic, which ends on Labor Day after 10 seasons ...