Letterman on late-night TV’s future: ‘I would be surprised if it lasts more than a year’

Things aren’t looking good for much of the late-night TV landscape, according to David Letterman, who says he’d be “surprised” if some programs last “more than a year or so.” Letterman, who launched “The Late Show” in 1993 and served as its host until 2015, opened up about its forthcoming finale in an interview with The New…