Richard Zoglin, Time magazine senior editor and writer, discussed his recent book about how stand-up comedy in the ‘70s changed America, Comedy at the Edge, on March 20 at the Y with legendary comedians Robert Klein, Richard Belzer and entertainment journalist/historian Eddy Friedfeld. It was an evening filled with personal stories, lots of ribbing and fond remembrance of that pioneering era. In the video clip above, the talk is focused on the changes in comedic styles at the time Robert Klein was starting his career.