Evidence is rolling in now that Single Sign On (SSO) boosts online viewing for pay TV operators by making it easier for subscribers to access content on connected devices without having to keep re-entering credentials. It is almost 30 years since SSO entered enterprise IT as a mechanism for giving staff access to all authorized services, applications and data wherever they were, as remote access over corporate wide area networks increased. In the case of broadcasting and pay TV it should have emerged with the first online extensions to legacy pay TV services, or TV Everywhere as it was called, but has taken a while to get going. As it happens it has taken a few of the big tech…