Commission Regulation (EEC) No 688/88 of 16 March 1988 re-establishing the levying of customs duties on cathode-ray television picture tubes, including video monitor cathode-ray tubes, falling within CN codes 8540 12 10, 8540 12 30 and 8540 30 00, originating in South Korea, to which the preferential tariff arrangements set out in Council Regulation (EEC) No 3635/87 apply