Abstract: A television interval timer generates a plurality of gating waveforms which when applied to digital circuitry, serve to gate out various portions of a television waveform determinative of a parameter to be measured. The parameter to be measured is selected by means of a selector panel which assigns a predetermined address to that parameter. The address is employed to select the proper gating waveform, the reference level at which the measurement is to be made, and the transition at the start and finish of the measurement. A counter is controlled to count a number of transitions which occur during the selected interval and which is a direct indication of the duration or timing interval associated with the parameter selected. The contents of the counter are directly displayed on a digital display to enable the user to directly view the parameter measured.