CREATE TABLE table_203_603 (id NUMBER, "service" CLOB, "service id" CLOB, "bit rate" CLOB, "audio channels" CLOB, "description" CLOB, "analogue availability" CLOB)

the first service after capital yorkshire
SELECT "service" FROM table_203_603 WHERE id = (SELECT id FROM table_203_603 WHERE "service" = 'capital yorkshire') + 1
SELECT "service" FROM "table_203_603" WHERE "id" = (SELECT "id" FROM "table_203_603" WHERE "service" = 'capital yorkshire') + 1