This week: Director Michael Apted on “56 Up” — the new installment of one of the greatest film series ever… Sportswriting legend Frank Deford tackles your etiquette questions… Guitar master Buddy Guy revisits his Louisiana roots… author Leigh Bardugo lists her favorite fictional worlds… A filmmaking duo plug in to the world of indie video games… and a sweet roll gets a savory twist on Manhattan’s High Line. Plus: We fear the food world’s revolutionary new robot, and spin a Bad Thing from Vermont rocker King Tuff.