HbbTV, which combines broadcast and broadband network, is spreading more and more faster on DVB networks throughout Europe nowadays. The purpose of establishing this standard was handling interactive and multimedia content uniformly, independent of the manufacturer. In my dissertation I introduce the standard basics of HbbTV and the potentials for developing applications for the platform. Consulting Antenna Hungária Zrt., my task was to develop a home application (launcher). My developed application has an administrative interface, for a comfortable solution for setup. It could be adjusted to any TV channel due to the perfectly customizable GUI. I created two simple applications for testing the working of the system, then I made them reachable from the menu of the home application (launcher). My starting application (launcher) was signalled in the laboratory of Antenna Hungária, so I had the chance to try it on TV. In this document I present the development process and testing of this launcher application from the beginning of getting to know the platform.