Apple has been aggressively marketing its new net tops having recently introduced tvOS – something it needed to do, having struggled to migrate its devoted users to the big screen – meanwhile its mobile arch-rival Google has made huge market share gains in streaming media. It is the fifth quarter in a row that Google’s Chromecast streaming dongle has won the title in this market, taking a dominant 35% share in Q3, according to UK researcher Strategy Analytics. Of a total of 9.2 million units shipped globally in the last quarter, Apple TV was the closest rival with a market share of just 20% at 1.84 million units, and Amazon Fire TV and Roku are both trailing with 16% each.…