Jake Kanter International TV EditorComcast-owned Sky has confirmed that Sky Arts, its premium arts channel, is to become a free-to-air network in the UK from September.The channel will launch on Freeview with a mission to bring “more of the arts to more people.” The move comes in an environment in which the BBC is scaling back originals on BBC Four, which has traditionally been at the forefront of the BBC’s arts content.Sky Arts is famous for shows including Portrait Artist Of The Year, fronted