A flip matrix is the sequence of channel numbers used to cycle through in a session of channel surfing on some broadcast media.
Some sessions of channel surfing (or “channel hopping”) have their own unique flip matrices. Usually a habitual zapper has a seed of channels with which he starts the matrix at the beginning of every surf session. The channels used in the seed variates on interest and mood, and is soon adjusted by the feedback given to the surfer from the tv screen.
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See also the work of Henry Jenkins
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