The number of TV homes worldwide paying for IPTV services will more than double from the 90 million recorded at the end of 2013 to around 191.2 million by 2020, according to a new report issued by Digital TV Research. Driven primarily by growth in Asia, the report predicts that IPTV penetration will exceed 11 percent of TV households by 2020 versus only 5.9 percent in 2013. The full research study is subscription-based, but an excerpt is available here.