Transformations of television public service broadcasting in the time of digitazing

The topic of this are changes of the public television broadcasting, that are caused by degitalization. There are no doubts that nowadays television is goinig trough some big transformations, both in the technological way and in the waz of structure of its content. Digitalization affetcs not only quality of the picture and sound, but also viewerś habits. This thesis should be focused on the public television broadcasting, but there are many phenomenons common both for public TV and commercial TV. Thatś why there are basis and grounds of the digitalization described for both of these areas together in the first part. Changes of viewerś habits and changes of programmme structure are the parts which are mainly focused on public TV. The aim of this thesis is to look on digitalization "from above", from general point of view. It is not aiming to describe specifics of this issue in particular countries