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I remember being in Germany a few years ago, and my friends' parents still used this (something equivalent in Germany) on their TV. It was effective.



This is called Teletext[1] (or in german: Videotext). It still widely used i guess. Even me sometimes used it to get informations about the sheduled TV-Program if not cellphone/tablet is in reach ;)

[1] http://en.wikipedia.org/wiki/Teletext


If you're watching this World Cup in Germany, you'll get regular notices on where to find further information (e.g. see Page 200 for current lineup)




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