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[[High-definition television]] (HDTV) uses [[720p]] (progressive), [[1080i]] (interlaced), and [[1080p]] (progressive, also known as Full-HD).
In [[digital video]], the temporal sampling rate is defined as the [[frame rate]]{{snd}} or rather the [[field rate]]{{snd}} rather than the notional [[pixel clock]]. The image sampling frequency is the repetition rate of the sensor integration period. Since the integration period may be significantly shorter than the time between repetitions, the sampling frequency can be different from the inverse of the sample time:
* 50 Hz – [[PAL]] video
* 60 / 1.001 Hz ~= 59.94 Hz – [[NTSC]] video
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