Broadcasted television shows are becoming more interactive. Some broadcast TV shows allow even home viewers without professional equipment to be part of them. In this paper we present an approach that takes this concept even further. In the proposed kind of participation television viewers will not only participate in the show through interaction or video streams, but also be able to create and host their own show. The core of the presented approach consists of the use of high-level models to describe the different aspects of the television show, and a generic runtime environment. This paper discusses this type of participation television, Staged Participatory Multimedia Events, and the supporting runtime environment in more detail. It also introduces the tool and the models that are used to support graphical creation of the structure and appearance of Staged Participatory Multimedia Events. 1

Abstract. Broadcasted television shows are becoming more interactive. Some shows even let home viewers without professional equipment be part of a broadcasted television show. Staged Participatory Multimedia Events on TV take this approach another step further. In this type of television shows, viewers can not only participate in the show through interaction or videostreams, but also direct the show. In this paper we discuss this type of participation TV into more detail and discuss the models allowing quick and graphical creation of the structure of a format. The models can be serialized to a set of XML-files, which can be interpreted by the ParticipationTV runtime. Working proof-of-concept implementations for creating the models, generating the XML-files and the runtime that interprets the XML-files have been realized.