How a cell phone can change dramatically the way we watch tv

This paper presents two new approaches related to how TV is watched, using a Bluetooth cell phone and a Bluetooth set-top box connected to a digital TV network with return channel. The first approach is related to user´s behavior analysis and program recommendation. Supposing that every viewer has Bluetooth cell phone, each cell phone will identify its owner to the set-top box wirelessly. The set-top box will inform the TV service provider the list of people who are in front of TV in real-time. Based on the history of programs watched by these people, it is possible to identify their profile and preferences. The second approach is the use of cell phone as a smart remote control and as an extension of the TV. The cell phone connected to the set-top box can be used by the interactive TV programs to send messages to the viewer, and many others.