In the last few years the needs of the users towards the IT systems and services has greatly increased, and it’s rapidly growing. This procedure has also affected those devices, which wasn’t necessarily IT. It means that nowdays our a lot of device became compact computers. Nowdays televisions aren’t an exception. In the age of smart TV-s there is an increasing demand for running applications on the mentioned devices, and to make the digital television systems interactive. Nowdays there are a few solution to develop that kind of applications. One of these technological solutions is the HbbTV (Hybrid Broadcast Broadband Television), which is nowdays rarely used, but because of it’s advantages there will be much more efforts to improve this technology, and considering the possibilities according to the standard, the user demands growth is almost guaranteed. The situation is the same with the cell phones, except that these devices are currently wordlwide spread, and their usage is common. The mentioned two worlds are keep coming closer to each other, and nowdays there are a few applications, which together create a multi-screen service. For example playing music on the television from the cell phone.