CBS has made a bold prediction to Wall Street that its stand-alone streaming services, CBS All Access and Showtime, will each amass 4 million subscribers by 2020. CBS chief operating officer Joseph Ianniello walked analysts through his projection on Tuesday afternoon during the Eye’s investor-day presentation in New York. Ianniello told the Wall Streeters that the OTT services represent an $800 million incremental revenue growth opportunity for the company over the next five years.