It may seem obvious that the best way to reach Millennials is through smartphones or television, and if we were examining overall usage you would be correct: Nielsen reports that 18-34-year-olds spend 19 hours and 33 minutes a week with TV, and 11 hours and 26 minutes with smartphones. However, in terms of overall reach you would have to think back to a simpler time. The same study finds that a whopping 91% of this age group use terrestrial radio each week, which is ahead of TV at 76%. The following stat may explain this phenomena: 59% of Millennials say radio is how they discover new music, putting it ahead of streaming services. (medialife)
