Taking clearer aim at a small but growing group of cord-cutters and consumers who have never taken a traditional pay TV service, AT&T said it’s developing a set of DirecTV-branded streaming services that will be delivered over-the-top and launch in the fourth quarter of 2016. AT&T said those services, which will include two paid offerings and one ad-supported free OTT service, will be offered nationally using a bring-your-own-broadband model, meaning that customers will be able to get it from any wired or wireless broadband service provider.