What is on at 8:30 when occupation double is on at 7:00 at that channel?
CREATE TABLE "monday" (
  "7_00" text,
  "7_30" text,
  "8_00" text,
  "8_30" text,
  "9_00" text,
  "9_30" text,
  "10_00" text
);
SELECT "8_30" FROM "monday" WHERE "7_00"='occupation double';