see total organizational volume

Total Organizational Volume. the total of all Personal Volume (PV), including the distributor's own PV, accumulated to infinity in the entire downline in a specified commission period. The TOV is used to determine the volume in each qualified Venture Leg for upline promotion.

Threshold of visibility. The impairment level (or D/U in dB) beyond which a source of impairment or interference may introduce visible deficiencies in more sensitive program material. For all tests, TOV was determined by expert observers.