From A for AGF Videoforschung to Z for zapping, the most important technical terms in video research are explained here.

TTX reader

TTX reader is an abbreviation for teletext reader and describes the users of TTX with the minimum usage time of one second. Every person who uses TTX consecutively for at least one second is counted as a reader for this medium. The calculation is analogous to television usage (but without the condition of minimum consecutive use of one minute), i.e. it is a net value.

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