From Einstein to Xbox: The IFA consumer electronic...
Teletext at IFA 1977
Videotext, the German name for teletext, is introduced in 1977. The service would go on to become immensely popular across Europe and provide news, weather, sports, TV guides and other information at no charge to hundreds of millions of TV viewers. At its peak almost every TV station in Europe provided a teletext service, although they are now being replaced with digital TV services.
From Einstein to Xbox: The IFA consumer electronics exhibition turns 50