Question 18/III - Leased international (continental and intercontinental) sound and television programme circuits (continuation of Question 19/III studied in 1985-1988) What further amendments and additions should be made to Recommendation D.4 to define the tariff principles which should govern the conditions and charges to be applied to the lease, for private use, of: a) international sound programme circuits, b) international television circuits? Reasons for the study The growing number of international sound and television programme circuits leased by broadcasting organizations for the transmission of programmes, the changes which have occurred in their use and the desire to provide more efficiently for future operations have led administrations to consider the need to review the present provisions of Recommendation D.4. Particular attention is to be paid to the potential use of digital facilities and to their implications in the provision of international (continental and intercontinental) sound and television programme circuits.