Peanuts, Kerouac, Matisyahu

Good grief! Charles Schulz’s biographer reveals some surprising secrets about the creator of “Peanuts.” A couple of newlyweds struggle over whether On the Road is just a boy book; and the cellist Erik Friedlander improvises music to a passage from the book. We explore changing the look of interstate highway signs. Plus, a Hasidic Jewish reggae singer tells us how he got that way.