Following on from its impressive 4K ULED Series 7 TVs from last year, Hisense has kicked things up a notch in 2017 by announcing two new series in its 4K ULED range with more to come later in the year.The Series 8 will be available in 55-inch and 65-inch models, with an even sleeker take on the industrial design featured in last year's models, including...