This paper presents the use of interactive television (TV) for learning purposes. Due to the increasing international support for the Multimedia Home Platform (MHP) as open standard for interactive, digital TV the development of interactive TV applications is gaining momentum. However, there are only very few educational interactive TV applications so far. In order to support the development of educational interactive TV applications it is investigated, how the technological possibilities of MHP can be used to develop educational applications. The research described focuses on an application developed for a public broadcaster in Germany. The integration of interactive functionalities into a traditional educational TV programme are demonstrated. In the case study special attention has been given to a user-centered development process as well as to the usability of the application to support end-user acceptance of this future technology for learning.