AT&T is interested in putting together a bundle of content that can be viewed on a smaller screen, or to a single screen in a home that’s not set-top box-driven, Stephenson said. AT&T is looking for new revenue streams as the wireless market stagnates. The online video market is a competitive space with established players such as Netflix Inc and Dish Network Corp and new entrants like Verizon Communications rushing to service viewers who consume video on mobile devices.