Samsung had no idea its free ad-supported streaming TV (FAST) service would explode at a rate of 100% increase in viewing over the past twelve months – but Faultline has known for at least two months that Samsung has been preparing for something of a relaunch, given the recent influx of content deals. To celebrate the growth of Samsung TV Plus to 3 billion streaming hours on 465 million smart TVs, smartphones, and browsers globally, the Korean electronics giant has awarded the FAST service a facelift and a slew of new content. While not a dramatic makeover on the front-end, TV Plus brings new channels and shows to the service, including emphasis on local and national news shows, plus two…