We just got the inside track on AT&T's ambitions to reinvent TV advertising — and work directly with

AT&T ad chief Brian Lesser talked to Business Insider at Cannes about the telecom's plans following the closure of the Time Warner acquisition. Basically, AT&T wants to build a tech and targeting platform that gets used by all the key players in TV, including other cable providers and non Time Warner networks. "People don't realize how big our addressable TV business is," he said. Even with TV ratings in decline and streaming surging, "content that is subsidized by brands is not going to go...