KEY POINTS
  • "The world needs advertising more than ever. We just need to make it more relevant," says AT&T Advertising and Analytics CEO Brian Lesser.
  • "Subscription video on demand is a great service" but won't be able to fund "all the content that's being produced," Lesser says.
  • He dodges questions about a Wall Street Journal report that AT&T is in talks to buy ad tech firm AppNexus.

The newly combined AT&T-Time Warner is looking to reinvent advertising — but to do so, it needs to buy more technology, AT&T Advertising and Analytics CEO Brian Lesser told CNBC on Wednesday.

Lesser, who spoke on "Squawk Box" from the Cannes Lions advertising and marketing festival in France, dodged questions about a Wall Street Journal report that AT&T is in talks to buy ad tech firm AppNexus in what could be a $1.6 billion deal.