Comcast’s Sky has agreed to buy the broadcast channels and streaming service of Britain’s ITV for £1.6 billion (US$2.13 billion), creating a British champion to compete with global players YouTube, Netflix, Amazon and Disney.Sky CEO Dana Strong said the deal, announced on Monday and confirming a Reuters story, was a “defining moment” in British broadcasting.The combination of Britain’s biggest free-to-air commercial broadcaster, home of Coronation Street, and subscription television company...