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.