To provide users with interactive digital television the DVB project defined and published DVB-MHP standard [11]. Services such as games, voting, shopping and other information services are transferred (broadcasted) in DVB stream together with video and audio streams. This standard defines open software system (middleware) which enables applications developed in Java to be executed on vendor independent TV terminal. For specific group of services (voting, e-mail, shopping, etc.) this platform expect from TV terminal to be equipped by return channel which can be realized by a phone line, broadband channel (DSL) or e.g. DVB-RTC.
DVB-MHP was deployed in some countries in Europe (Italy, Belgium, Poland) as well as in Korea, Australia.
Currently, big TV producers offer smart TVs equipped by broadband interface and own platform for installation and execution of web based applications (developed in HTML), e.g. Samsung’s TV have Smart Hub. Alternative solution to DVB-MHP is HbbTV which is also delivering applications to users in the DVB stream.