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Internet Protocol Television (IPTV) is a system which delivers television services via internet protocol over a packet switched network ie the internet as opposed  to the traditional forms of transmission such as terrrestrial, satellite or cable.

A definition of IPTV approved by the ITU is "IPTV is defined as multimedia services such as television/video/audio/text/graphics/data delivered over IP based networks managed to provide the required level of quality of service and experience, security, interactivity and reliability"

IPTV is distinguished differently from Internet TV by its on going standardisation process.