Nokia revealed this week that it is its Velocix CDN, inherited when it acquired Alcatel, which drives the OTT video traffic for Sky. The system has just been upgraded from simply taking OTT content to the set top – by far the hardest part of the job – to taking on Sky Go and Now TV’s traffic as well. Faultline counts Sky’s OTT service as one of the largest in Europe, up there with Liberty Global’s Horizon Go and associated services such as MyPrime, which our Rethink OTT Intelligence service rate as the two largest paid OTT services in Europe after Netflix. Sky has about 7.5 million regular users of its various OTT services, and increasingly we see almost all…